Academic journal Industrial Machine Building Civil Engineering
type: channel
description: Presenting the researches results in the area of building works mechanization, design and exploitation of building structures and their improvement, examining the current problems of soil mechanics, geotechnics and foundation engineering.
publisher: National University «Yuri Kondratyuk Poltava Polytechnic»
language: en
publication name: Academic journal Industrial Machine Building Civil Engineering
issn: 2409-9074
items: Experience in Strengthening Prefabricated Reinforced Concrete Floor Systems During the Rehabilitation of Industrial Buildings
items: Modelling of Organo-Mineral Complexes in the System “Lime-Zeolite-Enzyme” for Purifying Technically Polluted Water from Suspended Solids and Compacting Sediment
items: Stress-Strain State Analysis of a Shallow Spherical Shell Fabricated Using 3DCP
items: Mobile 3D Mapping Using Geodetic Drones and GPS Navigation
items: Design of civil defense protective structures in residential multi-story buildings for individual use
items: Sealing materials effectiveness evaluation in the repair of bituminous-concrete surface with transversal cracks
items: Formation of multifunctional nano-layered oxide REE-containing materials using nitrate precursors
items: Probability of brick structures destruction
items: Survivability and failure risks of steel frame structures: conceptual framework
items: High-strength steel grades application for silos structures
items: Accidents features in construction
items: Streamlining influence on the long-haul trucks with an installed movable roof fairing performance properties teoretical studies
items: Determination of the pressure in the cylinder of the automotive internal combustion engine by the installation of tensommetric sensors
items: PROBLEMS OF SUBWAY CONSTRUCTION IN COMPLEX ENGINEERING AND GEOLOGICAL CONDITIONS BY THE EXAMPLE OF KHARKІV CITY
items: CONSTRUCTIVE SOLUTION OF A TUNNEL UNDER THE EXISTING HIGHWAY
items: THE REDISTRIBUTION OF THE HEIGHT RETAINING WALLS LEVELS, ITS EFFECT AT THE STRESS-STRAIN STATE OF THE SYSTEM «RETAINING STRUCTURES – SOIL MASS»
items: PRINCIPLES OF CALCULATION AND MONITORING OF STRESS-STRAIN STATE OF THE GRADE-SEPARATED TRAFFIC INTERCHANGES IN MINSK
items: USING OF DYNAMIC AND STATIC LOAD PILING TESTS IN ASTANA, KAZAKHSTAN
items: MODEL TESTING OF PILED CLUSTERS AND LARGE MONO-PILES OF IMPROVED DESIGN
items: DETERMINATION OF THE MAIN DESIGN PARAMETERS FOR SOIL CHEMICAL STABILIZATION
items: ROADWAY ROUGHNESS RESEARCH AND CAUSES DETERIORATION ANALYSIS
items: RATIONAL ORGANIZATIONAL AND TECHNOLOGICAL DECISIONS ON THE GRAIN STORAGES CONSTRUCTION OR RENOVATION SITES
items: ULTIMATE ELONGATION OF CONCRETE
items: IMPROVING THE STABILITY TWO-LEVEL CAR HAULER
items: Influence of molybdenum on corrosion and mechanical properties of carbon steel joint welds
items: Hydroulic stand for testing automatic seats model development
items: Flexible oneanchor retaining building models calculation results comparing with experimental data
items: LONG-TERM SUBSIDENCE OF A MULTISTORY BUILDING ON THE BASE REINFORCED WITH SOIL CEMENT ELEMENTS
items: IRON ORE MINING GEOMECHANICAL PROBLEMS IN UKRAINE
items: PREPARATORY STAGE FOR MONITORING THE LOAD-BEARING STRUCTURES OF THE OPERATED SUBWAY STATION

Experience in Strengthening Prefabricated Reinforced Concrete Floor Systems During the Rehabilitation of Industrial Buildings
type: item
description: The article presents practical experience in combined reinforcing of precast reinforced-concrete beams and hollow-core floor panels during rehabilitation of an industrial building at the Chornomorsk Oil and Fat Plant. The initial technical condition of the structures and the results of the instrumental inspection have been described. The existing structure, consisting of long-span beams (up to 12 m) and hollow-core slabs (9 m spans), had suffered physical deterioration, exhibited excessive deflections, and required increased load-bearing capacity for design loads of 10–12 kPa. A proposed constructive-technological system combines: an external cage-truss rigid steel longitudinal reinforcement, increasing the cross-section by reinforced cast-in-place concrete topping, and creation of a monolithic slabs-beams joints. The design of mounting plates and cage-truss to beams joints using chemical anchors is detailed, it includes CBFEM analyses using IDEA StatiCa that demonstrate sufficient capacity and acceptable transfer of forces to the concrete. The procedure for topping the slab is given, including placement of reinforcement cages into the hollow cores, mesh reinforcement across the slab, and staged concreting. Advantages of the combined approach for increasing stiffness and load-bearing capacity and measures to limit local effects on existing sections are analyzed. Implementation results confirm the effectiveness of the proposed solution for restoration and enhancement of operational performance of large-span reinforced-concrete structures in industrial buildings.
subject: "Construction and civil engineering"
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Valentyn Marchenko
creator: Dmytro Fedorov
rights: Copyright (c) 2025 Valentyn Marchenko, Dmytro Fedorov https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-12-26
publication date: 2025-12-26
starting page: 5
ending page: 14
doi: 10.26906/znp.2025.65.4180

Modelling of Organo-Mineral Complexes in the System “Lime-Zeolite-Enzyme” for Purifying Technically Polluted Water from Suspended Solids and Compacting Sediment
type: item
description: The article presents the results of experimental and statistical modelling to determine the optimal composition of organo-mineral complexes for cleaning technically polluted water from suspended solids and compacting sediment in storage ponds at solid waste landfills during their reclamation and reconstruction. Water transparency with a turbidity index of 1.55 NTU they ensured by using an organo-mineral complex containing 7.25-8.25% quicklime, 2.5-3% zeolite and 7.5-8.25% enzyme. Sedimentation in the form of a sediment with a tensile strength of up to 160 kPa on the 28th day of exposure they ensured by using an organo-mineral complex containing 30.63-35% quicklime, 0-3.5% zeolite and 0-1.25% enzyme.
subject: "Construction and civil engineering"
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Sergii Guzii
creator: Andriy Tovmachenko
creator: Volodymyr Viter
rights: Copyright (c) 2025 Sergii Guzii, Andriy Tovmachenko, Volodymyr Viter https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-12-26
publication date: 2025-12-26
starting page: 118
ending page: 127
doi: 10.26906/znp.2025.65.4209

Stress-Strain State Analysis of a Shallow Spherical Shell Fabricated Using 3DCP
type: item
description: Experimental and numerical investigations of the stress–strain behavior and load-bearing capacity of a shallow spherical concrete shell fabricated using extrusion-based 3D printing are presented. The shell with a plan dimension of 2.2 × 2.2 m was subjected to quasi-uniform stepwise loading using sandbags. The maximum applied distributed load reached 13.74 kN/m², and the measured vertical deflections did not exceed 0.235 mm, indicating high structural stiffness. A three-dimensional nonlinear finite element model was developed in LS-DYNA to simulate the experimental behavior and to predict the ultimate load-bearing capacity, since it was not reached experimentally. It was found that failure of the 3D-printed shell occurs under a uniformly distributed load of 228.4 kN/m², which corresponds to a total load of 67.8 t. The numerical results showed good agreement with the experimental data, with discrepancies within 17%. The proposed experimental–numerical approach confirms the structural efficiency and feasibility of 3D-printed concrete shells for load-bearing applications.
subject: "Construction and civil engineering"
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Olena Petrova
creator: Dmytro Petrenko
creator: Vladyslav Tenesesku
creator: Oleksii Buldakov
rights: Copyright (c) 2025 Olena Petrova, Dmytro Petrenko, Vladyslav Tenesesku, Oleksii Buldakov https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-12-26
publication date: 2025-12-26
starting page: 35
ending page: 45
doi: 10.26906/znp.2025.65.4210

Mobile 3D Mapping Using Geodetic Drones and GPS Navigation
type: item
description: The paper examines current trends in the development of geodetic mapping, with a particular focus on comparing traditional methods with innovative approaches. It is noted that classical techniques, such as the use of theodolites, levels, and GPS receivers – are still widely employed in engineering geodesy, although they present several limitations, including high labor intensity, the need for qualified personnel, and significant time consumption. At the same time, there is growing interest in automated solutions, particularly the use of unmanned aerial vehicles (UAVs), which enable rapid and accurate spatial data acquisition with minimal resource expenditure. The article emphasizes the importance of evaluating the effectiveness of different mapping methods in terms of accuracy, execution speed, and cost-efficiency, which is especially relevant in the context of the rapid development of the engineering and construction sectors.
subject: "Industrial engineering"
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Denys Berun
creator: Maksym Filipets
creator: Alina Chubakova
creator: Viktor Virchenko
rights: Copyright (c) 2025 Денис Берун, Максим Філіпець, Аліна Чубакова, Віктор Вірченко https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-12-26
publication date: 2025-12-26
starting page: 134
ending page: 139
doi: 10.26906/znp.2025.65.4208

Design of civil defense protective structures in residential multi-story buildings for individual use
type: item
description: The military actions in Ukraine, which daily create a threat to the civilian population, necessitate the development of new technical solutions for new construction and the reconstruction of existing buildings and structures. A large number of civilian casualties are residents of multi-story residential buildings. A typical protective shelter is considered to be a basement or cellar floor, the structural features of which are designed for utilities, pipelines, and technical equipment. They lack an emergency exit and proper ventilation, and do not provide for long-term stay with specific conditions in full compliance with the current regulatory requirements for the protection of the civilian population. As a result of the analysis of architectural and planning solutions, there is a need to improve premises where it is possible to integrate individual protective shelters, which are intended to provide proper protection in case of an emergency. The work examines the fundamental principles of approaches to designing individual protective shelters within the housing stock. The proposed recommendations can be used in designing new residential buildings, reconstructing existing buildings, and forming a system of individual protective shelters aimed at increasing the level of public safety in modern conditions.
subject: "Construction and civil engineering"
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Olena Filonenko
creator: Dmytro Nikolaienko
rights: Copyright (c) 2025 Dmytro Nikolaienko, Olena Filonenko https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-12-26
publication date: 2025-12-26
starting page: 77
ending page: 83
doi: 10.26906/znp.2025.65.4192

Sealing materials effectiveness evaluation in the repair of bituminous-concrete surface with transversal cracks
type: item
description: The method of sealing materials effectiveness evaluation in the repair of bituminous-concrete surface with transversal cracks is offered. Calculation schemes and mathematical models based on the application of the thermo-viscous-elasticity theory for the prediction of temperature stresses in the sealing material at the contact with the bituminous-concrete surface, taking into account the thermal-technical and thermorheological properties of the materials and the geometric parameters of the bituminous-concrete slabs and the transversal crack. The obtained analytical dependences allow to estimate the service life before the loss of sealant compound integrity or adhesive strength of their adhesion with bituminous-concrete surface taking into account annual and daily temperature fluctuations according to the main provisions of the kinetic theory of solid bodies strength.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Оleksandr Gustieliev
rights: Copyright (c) 2019 Оleksandr Gustieliev
date: 2019-07-05
publication date: 2019-07-05
starting page: 166
ending page: 169
doi: 10.26906/znp.2019.52.1703

Formation of multifunctional nano-layered oxide REE-containing materials using nitrate precursors
type: item
description: Complex system research of the interaction of structural components in nitrate systems of rare-earth and IA, IIA elements of the periodic system – precursors of modern multicomponent oxide polyfunctional materials on their basis – established the formation of a class of lanthanides alkaline coordination nitrates. The obtained data are the basis for identifying, controlling the formed phases in the preparatory stages of processing in innovative technologies using nitrate predecessors of different electronic structures elements and various combinational methods of their activation, establishing technological and functional dependencies, controlling the modification of the synthesis products properties.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Оleksandr Dryuchko
creator: Dmytro Storozhenko
creator: Natalya Bunyakina
creator: Iryna Ivanytska
creator: Vasyl Khanyukov
creator: Кateryna Kytayhora
rights: Copyright (c) 2019 Оleksandr Dryuchko, Dmytro Storozhenko, Natalya Bunyakina, Iryna Ivanytska, Vasyl Khanyukov, Кateryna Kytayhora
date: 2019-07-05
publication date: 2019-07-05
starting page: 216
ending page: 225
doi: 10.26906/znp.2019.52.1701

Probability of brick structures destruction
type: item
description: The results of calculations of construction brick destruction probability determination at central and off-center compression are given; the determination of the brick structures destruction probability, caused by the exhaustion of the masonry strength on local compression (crushing); determination of the brick structures destruction probability associated with the exhaustion of the masonry strength on the displacement (cut); determination of the brick structures destruction probability associated with the exhaustion of the masonry strength on the fold, the stretch; determination of the brick structures destruction probability on the crack opening. The value of the security characteristic for each case has been determined and the comparison with the normative values has been made.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Oxana Kichaeva
rights: Copyright (c) 2019 Oxana Kichaeva
date: 2019-07-05
publication date: 2019-07-05
starting page: 110
ending page: 114
doi: 10.26906/znp.2019.52.1683

Survivability and failure risks of steel frame structures: conceptual framework
type: item
description: The article considers the concept of "survivability" of steel frame structures and defines its features. In the design of steel frames there is a need to reserve the main load-bearing structures to prevent progressive destruction. With the possible destruction of any individual element, the entire object or its most critical part must remain operational. The degree of damage to the system in case of failure of an individual element is determined. The main prerequisites for prevention of destruction in emergency situations, in particular, the calculation of the increase in carrying capacity. The approaches to determining the risks of failure and strengthening of steel frame elements are considered.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Kseniia Chichulina
creator: Chichulin Chichulin
rights: Copyright (c) 2019 Kseniia Chichulina, Chichulin Chichulin
date: 2019-07-05
publication date: 2019-07-05
starting page: 102
ending page: 109
doi: 10.26906/znp.2019.52.1682

High-strength steel grades application for silos structures
type: item
description: This paper deals with the work studying of high strength steel in the constructions of silo capacities. The most widespread trademarks of steel have been analyzed. Mechanical and chemical features of examples series of high strength steel of European and American manufacturers have been experimentally tested, which were used for the body’s sheet panels making. It has been made checking calculation of storage capacity with the diameter of 11 m from shaped corrugated sheet of different thickness. The material for panels manufacturing is one of the researched examples of steel. It was mentioned reasonable conclusions according to the using of the concerned material for getting economically rational project decisions.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Sergiy Pichugin
creator: Natalia Makhinko
rights: Copyright (c) 2019 Sergiy Pichugin, Natalia Makhinko
date: 2019-07-05
publication date: 2019-07-05
starting page: 51
ending page: 57
doi: 10.26906/znp.2019.52.1674

Accidents features in construction
type: item
description: This work aims to highlight the problem of accidents in the construction industry. On the basis of collected and processed information the accidents classification in the building is presented, depending on the building erection stage. The article gives a detailed description and analysis of such cases in the construction. The collection of information on accidents was carried out using various information sources: Internet resources, literary sources, scientific works and information from world-wide journalistic services. The findings are presented over the last ten years and cover worldwide construction incidents. The material is systematized and presented in the table form. The study results are the created accidents classification with the probability of their occurrence, which can be used later in the design of buildings and structures, in order to predict the various types of accidents in the construction.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Sergiy Pichugin
creator: Lina Klochko
rights: Copyright (c) 2019 Sergiy Pichugin, Lina Klochko
date: 2019-07-05
publication date: 2019-07-05
starting page: 91
ending page: 101
doi: 10.26906/znp.2019.52.1681

Streamlining influence on the long-haul trucks with an installed movable roof fairing performance properties teoretical studies
type: item
description: Influence streamlined elements located on the roof of the tractor main train such as the efficiency of the vehicle with installed no bonnet on it an advanced roof rack, which has the ability to adjust to any trailed warehouse. It has been assumed that it provides high levels of accuracy with respect to analogues due to the possibility of choosing the appropriate geometric parameters, provides ease of use and the ability to adjust the cushion during vehicle movement, prevents probable malfunctions during strong winds or hurricanes due to the strength of the drive management and modern electronic systems mechanical design. On the basis of theoretical studies of the main motor trains various tractors flow, the dependences of power and fuel consumption on the air traffic vehicle coefficient have been established at its movement speeds. It has been proven that it is advisable to use an advanced racing hub on precision drum trucks with small and medium-height cabs.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Viktor Virchenko
creator: Maxym Skoryk
creator: Anatolii Kryvorot
creator: Oleksandr Meshko
rights: Copyright (c) 2018 Viktor Virchenko, Maxym Skoryk, Anatolii Kryvorot, Oleksandr Meshko
date: 2018-10-12
publication date: 2018-10-12
starting page: 187
ending page: 195
doi: 10.26906/znp.2018.51.1314

Determination of the pressure in the cylinder of the automotive internal combustion engine by the installation of tensommetric sensors
type: item
description: The analysis of well-known methods of displaying and their cost has made it possible to conclude that the methods of direct and indirect displaying have a number of serious shortcomings. Therefore, the diagnostic method for the condition of the internal combustion engine according to the value of gas pressure in the cylinders of the engine has been proposed. This method allows determining its indicator ratios, assessing the engine`s health of the ICE, the regulator (control) performance, efficiency and environmental cleanliness. This article describes the general principle of operation of the device and components of the process of measurement and processing of the obtained data. The authors of the article provided the connection diagram and substantiated the efficiency of the proposed method for obtaining information on internal cylinder processes. The results of the performed calculations indicate the suitability of the proposed calculation method for the simulation of internal cylinder processes inside internal combustion engines, including the modern ones
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Bogdan Korobko
creator: Oleksiy Vasyliev
creator: Ivan Rohozin
creator: Ievgen Vasyliev
rights: Copyright (c) 2018 Bogdan Korobko, Oleksiy Vasyliev, Ivan Rohozin, Ievgen Vasyliev
date: 2018-10-12
publication date: 2018-10-12
starting page: 171
ending page: 175
doi: 10.26906/znp.2018.51.1311

PROBLEMS OF SUBWAY CONSTRUCTION IN COMPLEX ENGINEERING AND GEOLOGICAL CONDITIONS BY THE EXAMPLE OF KHARKІV CITY
type: item
description: Scientific, technical and practical problems connected with the construction of subways, such as complex engineering and geological conditions, tunneling need in existing urban development conditions, unfavorable processes emergence during construction and operation are considered. A number of resonant factors that require special decisions when constructing the third subway line ine Kharkiv city have been identified. These factors are large dewatering influence radius threaten surface subsidence and damage of building structures in the area of open tunneling; barrage impact on the groundwater flow in the area of closed tunneling; threat to several buildings located above the tunnels; threat of weak soils dumping in the tunnel face; vibration impact on soils, buildings and structures. Seismic effect assessment on Kharkіv subway objects is discussed.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: G. G. Strizhelchik
creator: V. Yu. Iegupov
rights: Copyright (c) 2017 G. G. Strizhelchik, V. Yu. Iegupov
date: 2017-10-17
publication date: 2017-10-17
starting page: 195
ending page: 200
doi: 10.26906/znp.2017.49.842

CONSTRUCTIVE SOLUTION OF A TUNNEL UNDER THE EXISTING HIGHWAY
type: item
description: Urban underground structures (shallow tunnels), which are usually built in conditions of urban area with heavy traffic, are considered. It was clarified that the reinforced concrete lining are performed of concrete, reinforced concrete, natural and artificial stones in most cases. The types of tunnels road cutting are given. The geometrical dimensions and characteristics of using materials in the construction of tunnels are given. It was established that the existing methods of tunnel construction do not allow to solve the problem in cramped conditions and intense traffic. The new constructive solution of the transverse tunnel under the existing highway was proposed. It is found that the proposed design of the transverse tunnel may be performed in cramped urban environments with the use of modern technological equipment and the proposed method of tunnel meets the requirements of strength, reliability, durability.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: R. A. Timchenko
creator: D. A. Krishko
creator: S. О. Macyshin
rights: Copyright (c) 2017 R. A. Timchenko, D. A. Krishko, S. О. Macyshin
date: 2017-10-17
publication date: 2017-10-17
starting page: 214
ending page: 220
doi: 10.26906/znp.2017.49.845

THE REDISTRIBUTION OF THE HEIGHT RETAINING WALLS LEVELS, ITS EFFECT AT THE STRESS-STRAIN STATE OF THE SYSTEM «RETAINING STRUCTURES – SOIL MASS»
type: item
description: The work of multi-level retaining walls in sandy loam soils is investigated. A numerical experiment was conducted for reveal the most rational choice of the level height at a constant total excavation depth. A three-level retaining wall is considered. A number of tasks have been solved. The depend values changing of displacement and internal effort on the redistribution of excavation levels is shown. Values are fixed in the characteristic points of the structural elements of retaining walls each level. Variables are different at level marks of retaining walls. The surfaces were created on bases of the obtained results. These surfaces are used to analyze the relationship between the heights of levels and the values of bending moments. Identified solutions lead to increased displacements in one or another level of retaining walls. The constitutive laws between the geometric parameters of the retaining walls and the stress-strain state of the system «retaining constructions – soil mass» are obtained.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: L. O. Skochko
rights: Copyright (c) 2017 L. O. Skochko
date: 2017-10-17
publication date: 2017-10-17
starting page: 186
ending page: 194
doi: 10.26906/znp.2017.49.841

PRINCIPLES OF CALCULATION AND MONITORING OF STRESS-STRAIN STATE OF THE GRADE-SEPARATED TRAFFIC INTERCHANGES IN MINSK
type: item
description: The results of scientific accompaniment and monitoring of construction of the transport interchange at the intersection of Independence Avenue and Filimonova Street over tunnels and other structures of Minsk subway. In order to ensure (in three shifts) the construction and installation works at construction of transport interchange around a number of innovative technologies in both for designing and work performance has been used. Construction monitoring envisaged continuous control of deformations and stresses of constructions of underground tunnels in the online mode and data transmission to all interested organizations. The calculation model of the existing tunnels has been developed, which includes the design of the lining and the surrounding soil massif. A theory for calculating underground structures based on the deformation of materials of building structures and geomechanical models composing a soil massif has been proposed.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: G. P. Pastushkov
creator: V. G. Pastushkov
rights: Copyright (c) 2017 G. P. Pastushkov, V. G. Pastushkov
date: 2017-10-17
publication date: 2017-10-17
starting page: 126
ending page: 134
doi: 10.26906/znp.2017.49.833

USING OF DYNAMIC AND STATIC LOAD PILING TESTS IN ASTANA, KAZAKHSTAN
type: item
description: In this paper the analysis results of precast piles different tests are presented. Extreme soil conditions of Astana (Kazakhstan) involve realizing the work precast piles in various soil ground and interaction soil ground and piles. There were carried out dynamic and static load tests of piles in extreme soil ground conditions in Astana. Based on data results of pile foundations the piles bearing capacity was determined. According to the results of DLT with PDA of driving piles (30.0 cm) the bearing capacity of the piles is 911 kN. The bearing capacity of the driven piles according to the results of SLT amounted to be 878 kN. Soils physic-mechanical properties in extreme conditions of Astana along with graphs of dependence are between settlement and load. The precise analysis of climatic and geological factors of the construction sites is shown. Investigations method for precast concrete piles testing is presented. Dynamic load test methodology in Astana for concrete piles testing is shown. These investigations are important for of Pile-Soil interaction on problematical soil ground.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: A. Z. Zhussupbekov
creator: Z. A. Shakhmov
creator: G. T. Tleulenova
creator: S. B. Akhazhanov
rights: Copyright (c) 2017 A. Z. Zhussupbekov, Z. A. Shakhmov, G. T. Tleulenova, S. B. Akhazhanov
date: 2017-10-17
publication date: 2017-10-17
starting page: 32
ending page: 37
doi: 10.26906/znp.2017.49.819

MODEL TESTING OF PILED CLUSTERS AND LARGE MONO-PILES OF IMPROVED DESIGN
type: item
description: When constructing piled clusters and structures supported by large mono-piles, piles designed are used to take up significant lateral and pressing-in loads. New effective and less resource-demanding design of piled cluster was considered before. At this paper some results of its model testing in laboratory conditions are analyzed and discussed. To increase energy-absorbing capacity of mooring/fender dolphins it was worked out and researched a new design of combined tubular mono-pile structure, incorporating internal flexible pile and damping element placed at the zone of pile head. This design has been tested by laboratory experiments using small scale model. Obtained results confirm its effectiveness and practicability.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: M. P. Doubrovsky
creator: I. Yu. Dobrov
creator: A. V. Gerashchenko
creator: O. M. Dubrovska
rights: Copyright (c) 2017 M. P. Doubrovsky, I. Yu. Dobrov, A. V. Gerashchenko, O. M. Dubrovska
date: 2017-10-17
publication date: 2017-10-17
starting page: 38
ending page: 44
doi: 10.26906/znp.2017.49.822

DETERMINATION OF THE MAIN DESIGN PARAMETERS FOR SOIL CHEMICAL STABILIZATION
type: item
description: When designing or reconstructing buildings and structures on the swelling soils, it is necessary to be particularly concerned about the pattern of these soils behavior in order to subsequently be able to predict the behavior of the ‘basement – foundation – building’ system. The most effective way to stabilize soil behavior of the basement contaminated with industrial effluents is injection methods used for stabilization. The main task of soil chemical stabilization is to strengthen the bonds between soil particles with the help of chemical reagents. As a result of the research, the design parameters for foundations stabilization of soils composed contaminated with peroxy acid were determined. Depending on the concentration of peroxy acid in the soil and the density of the used sodium silicate solution, the limiting values initial components volume ratios were determined to carry out qualitative and reliable soil stabilization for the basements.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: G. M. Levenko
rights: Copyright (c) 2017 G. M. Levenko
date: 2017-10-17
publication date: 2017-10-17
starting page: 82
ending page: 87
doi: 10.26906/znp.2017.49.828

ROADWAY ROUGHNESS RESEARCH AND CAUSES DETERIORATION ANALYSIS
type: item
description: The article deals with modern directions of domestic and foreign smoothness research coverage on the roads. The problem of causes changes establishing in smoothness coverage related to the irregularities in the procedure of road construction layers is highlighted. The research results of the trafficway smoothness and its causes deterioration analysis, performed by operation of roads and airfields laboratory at National Transport University on research road area H-18 around the city Buchach is shown. By the research results the road profile is drawn and the detailed analysis of road topping smoothness changes during road operation is done. Samples at the specific points on the road topping is taken: in one place it is a transverse crack, in another – without noticeable defects. It is established that road profile hollows and transverse cracks caused by black layers uneven thickness along the road.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: D. O. Pavlyuk
creator: V. P. Tereshchuk
creator: V. S. Chapovskyi
rights: Copyright (c) 2017 D. O. Pavlyuk, V. P. Tereshchuk, V. S. Chapovskyi
date: 2017-03-27
publication date: 2017-03-27
starting page: 251
ending page: 257
doi: 10.26906/znp.2017.48.808

RATIONAL ORGANIZATIONAL AND TECHNOLOGICAL DECISIONS ON THE GRAIN STORAGES CONSTRUCTION OR RENOVATION SITES
type: item
description: The article presents a method for choosing rational organizational and technological decisions at the grain storages construction or reconstruction sites using the results of the author's experimental and theoretical studies. It is given conditions analysis for the investigated enterprises operational activity. The obtained experimental statistical dependencies of the indicators change of such operational activity from the varied organizational and technological factors and the developed algorithms allow choosing rational organizational and technological decisions for the elevators construction and reconstruction based on the construction site conditions analysis and on the effective planning.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: A. L. Nikiforov
rights: Copyright (c) 2017 A. L. Nikiforov
date: 2018-01-26
publication date: 2018-01-26
starting page: 290
ending page: 297
doi: 10.26906/znp.2017.48.812

ULTIMATE ELONGATION OF CONCRETE
type: item
description: It is shown the results of experimental studies of the deformation and concrete fracture process under the axial tension and under the conditions of non-homogeneous state of stress when changing the deformation gradient over the cross section. The test samples were loaded by the short duration load to the point of structural and with load alleviation under the stresses close to destruction. The basic influencing factors on the ultimate elongation of studied types of concrete are found out and the analytical dependences for their description are proposed. The experiments have shown that under the non-uniform stress state the ultimate elongation is not constant; it varies within a wide range and depends on the critical strain gradient. For solving applied problems, the suitable, for practical use, universal form of connection load – deformation was offered, which truly reflects the unity of the relation between stress and deformation of concrete, which is in the condition of homogeneous and non-homogeneous stress states.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: P. G. Kurgan
creator: S. P Kurgan
rights: Copyright (c) 2017 P. G. Kurgan, S. P Kurgan
date: 2017-03-27
publication date: 2017-03-27
starting page: 72
ending page: 80
doi: 10.26906/znp.2017.48.779

IMPROVING THE STABILITY TWO-LEVEL CAR HAULER
type: item
description: To improve the lateral stability of car hauler way you value optimal cargo location parameters, elastically mounted on a platform, developed a mathematical model of its motion. At the same time take into account fluctuations in cargo and car hauler. According to the simulation results revealed that the system for car «hauler – cargo» accounting for elastic properties leads to a significant decrease in the frequency and amplitude of the system vertical oscillations. Therefore, the presence of the cargo can be regarded as a dynamic passive damping (in the case of a correct choice and design of layout parameters). There is proposed to reduce the distance between the cargo and the upper platform by determination of maximum values of the cargo oscillations amplitudes. In turn, the reduction of the height of the platform reduces the height of the center of gravity of the system, improves the stability of car hauler. Keywords: car hauler, dynamic processes, fluctuations, platform, stability.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: N. N. Shpilka
rights: Copyright (c) 2017 N. N. Shpilka
date: 2017-03-27
publication date: 2017-03-27
starting page: 8
ending page: 18
doi: 10.26906/znp.2017.48.209

Influence of molybdenum on corrosion and mechanical properties of carbon steel joint welds
type: item
description: The results of experimental studies of the molybdenum impurity influence on corrosion and mechanical properties of carbon steel (Grade 20) joint welds are presented in the article. In particular, it has been found that the highest and stable values of the impact strength and resistance properties of cracks (К1s and δs), as well as the resistance to sulfide corrosion cracking of the metal of tubular steel joints, are achieved at a concentration of molybdenum in it from 0,2 to 0,4%, which is realized by putting a molybdenum powder in the electrode coating in the amount of 0,5-1,0%. On the basis of the obtained results an optimal chemical composition of the weld metal was determined which is characterized by a fine-grained structure with a small amount of non-metallic impurities of globular shape. Optimal content of the doping micro-additive - molybdenum should be selected, based on both the influence of molybdenum on the size of structural components, but, most importantly, on its effect on the corrosion and mechanical properties of metal joint weld.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Valerii Makarenko
creator: Yuriy Vynnykov
creator: Andrii Manhura
rights: Copyright (c) 2019 Valerii Makarenko, Yuriy Vynnykov, Andrii Manhura
date: 2019-07-05
publication date: 2019-07-05
starting page: 226
ending page: 231
doi: 10.26906/znp.2019.52.1702

Hydroulic stand for testing automatic seats model development
type: item
description: A new design scheme for testing the car seats with hydraulic drive has been proposed, a mathematical model of stand work process has been developed, the movement of mass center in the car seat has been theoretically proved. It is determined at the expense of what factors it is necessary to develop special stands necessary for an adequate various seats check or seat configurations, which simulate long-term seats use during a short time period. The special stands car seats of different configurations work analysis simulation close to the real operation conditions on cars is carried out. The basic parameters and operating modes that characterize working processes in the conditions of operation are established. The mathematical dependence, which characterizes the work process of the stand for testing the car seat with a hydraulic drive, is obtained. The movement of car seat masses center depending on the influence factors is determined.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Viktor Virchenko
creator: Мykola Shapoval
creator: Maxym Skoryk
creator: Vladyslav Ladur
rights: Copyright (c) 2018 Viktor Virchenko, Мykola Shapoval, Maxym Skoryk, Vladyslav Ladur
date: 2018-10-12
publication date: 2018-10-12
starting page: 180
ending page: 186
doi: 10.26906/znp.2018.51.1313

Flexible oneanchor retaining building models calculation results comparing with experimental data
type: item
description: Based on the previously described mathematical model implemented in software complex PLASTICA, nonlinear calculation of one anchor sheet pile wall together with surrounding soil medium has been performed. To assess the results reliability with experimental data tests Lazebnik G.E., calculations in PLAXIS 2D and classic Coulomb method are compared. The basis of a mathematical model incorporated the theory of plastic flow with hardening, which is based on the principle of maximum Mises. In general, it can be assumed that the calculations results in the software package PLASTICA using the proposed nonlinear models showed satisfactory agreement as compared with the experimental data
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Anёdriy Grishin
creator: Olaksandr Siplivets
rights: Copyright (c) 2018 Anёdriy Grishin, Olaksandr Siplivets
date: 2019-01-08
publication date: 2019-01-08
starting page: 31
ending page: 36
doi: 10.26906/znp.2018.51.1286

LONG-TERM SUBSIDENCE OF A MULTISTORY BUILDING ON THE BASE REINFORCED WITH SOIL CEMENT ELEMENTS
type: item
description: The methodology and results of long-term geodetic observation at subsidence of nine-ten storey building with a strip cast-in-place foundation on sandy and peaty base reinforced with soil cement elements at the process of its construction and exploitation are presented in the article. The correctness of elastic-plastic model use with Mohr Coulomb strength criterion and planar task finite element method for the evaluation of the deformed state «strip foundation – reinforced soil layer – the natural basis» system are substantiated.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: Yu. L. Vynnykov
creator: I. V. Miroshnychenko
creator: О. М. Landar
creator: V. М. Zotsenko
creator: P. M. Omelchenko
rights: Copyright (c) 2017 Yu. L. Vynnykov, I. V. Miroshnychenko, О. М. Landar, V. М. Zotsenko, P. M. Omelchenko
date: 2017-10-17
publication date: 2017-10-17
starting page: 234
ending page: 242
doi: 10.26906/znp.2017.49.850

IRON ORE MINING GEOMECHANICAL PROBLEMS IN UKRAINE
type: item
description: The paper deals with problems in Ukrainian iron ore mining industry resulted from enterprises reaching deep levels of mining. There are also described main causes of hazardous situations due to geomechanical factors at such depths, dynamic forms of excessive rock pressure manifestations, and types of external factors affecting the state and behavior of load-bearing elements of mining and technological objects below the surface to enable mining operations. The paper provides recommendations on creating a specialized geomecanics support system for mining enterprises which is based on labour safety risk-management principles as well as it presents geomechanics tasks to be solved by the system.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: S. O. Popov
creator: R. A. Timchenko
creator: O. O. Yerina
rights: Copyright (c) 2018 S. O. Popov, R. A. Timchenko, O. O. Yerina
date: 2017-10-17
publication date: 2017-10-17
starting page: 152
ending page: 158
doi: 10.26906/znp.2017.49.836

PREPARATORY STAGE FOR MONITORING THE LOAD-BEARING STRUCTURES OF THE OPERATED SUBWAY STATION
type: item
description: Modern technologies for the construction of a subway underground allow reconstruction of operated stations without stopping the movement of trains and subway disruptions. However, this problem is quite complicated, because at the device of transitive tunnels it is possible to violate the stress-strain state of the main load-bearing structures and ground of the station base, track upper-structure drawdown appearance that is impermissible for the safe operation of the subway. The article presents the results of the preparatory stage of theMinsk subway station main load-carrying structures state monitoring, as well as the results of spatial calculations based on design data, considering the stage of transition tunnel construction work from the first to the third branches.
subject: Статті
  topic: section
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
subject: Array
  topic: keywords
creator: G. P. Pastushkov
creator: M. A. Kisel
rights: Copyright (c) 2017 G. P. Pastushkov, M. A. Kisel
date: 2017-10-17
publication date: 2017-10-17
starting page: 116
ending page: 125
doi: 10.26906/znp.2017.49.832