To the Question About the Assessment Bearing Capacity Driving Reinforced Concrete Piles of Standard Cross Sections on Horizontal Load

Znamenskiy, Vladimir; Znamenskaya, E. V.; Chunyuk, Dmitry; Khaliullina, Dina

doi:10.15593/2224-9826/2018.1.06

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…When vertical and horizontal forces act on the foundation without taking into account the ground friction on its lateral faces, tensions σ y of ground pressure on the front face of the foundation (at the section from y = 0 to y = 0) and on the back face of the foundation (at the section from y = y 0 to y = d) arise in the ground, the size of which in each point of these faces is directly proportional to the depth y of location of this point from the design ground surface [3,[14][15][16][17]:…”

Section: Objects and Methods Of Research 21 Analysis Of The Methodolo...mentioning

confidence: 99%

Tension of ground pressure on the foundations of railway catenary supports

et al. 2023

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This paper presents the results of calculations of the values of soil pressure stresses on the base of the contact network supports by the developed program NDGFOKS in the programming language - C#. Design and construction of the foundations of the contact network supports is provided in accordance with the requirements of regulatory documents and technological charts. When selecting the methods of fastening the overhead contact network supports in the ground of the earth bed, experience in construction of overhead contact network supports in various engineering and geological conditions was taken into account. The methods of calculation of load-carrying capacity of the contact network bases on the ground were analyzed. Methods of fastening the overhead contact network pylons, including those on the weak ground bases, were given. The NDGFOKS program has been developed in the C# programming language in order to calculate the stresses of soil pressure on the foundation faces. The program has been developed taking into account the variety of soils, the characteristics of foundations and the methods of their driving. A block diagram and a diagram of the stresses of soil pressure on the foundations of the contact network supports at different foundations are given.

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Section: Objects and Methods Of Research 21 Analysis Of The Methodolo...mentioning

confidence: 99%

Tension of ground pressure on the foundations of railway catenary supports

et al. 2023

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“…(1) Under the condition of using the same water, the pre-wet mixing method can achieve the best performance. The added water exceeds the maximum limit that the ceramsite can hold, the slump of concrete will suddenly increase, and the phenomenon of spillage will occur 17 .…”

Section: Performance Of Ceramsite Concretementioning

confidence: 99%

Automatic testing system for ceramsite concrete bearing capacity based on genetic algorithm

Liu

Xue

Zhao

et al. 2023

International Conference on Computer Application and Information Security (ICCAIS 2022)

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At present, the research work on recycled concrete is still relatively slow and backward, and many problems are not studied in detail enough. It only stays at the material level, and there is no in-depth research on the performance of recycled concrete structures. The purpose of this paper is to study the automatic testing system of ceramsite concrete bearing capacity based on genetic algorithm. A prediction model for the flexural and shear resistance of RC beams after high temperature, and the bearing capacity of RC columns after high temperature, based on BP neural network and GA-BP neural network, was established to prove the effectiveness and efficiency of the automatic test system based on ceramsite concrete bearing capacity accuracy. The overall structure of the system is analyzed, and the following conclusions are obtained: Compared with the BP neural network prediction model, the flexural and shear bearing capacity of the RC beam based on the GA-BP neural network after high temperature and the axial compression of the RC column after high temperature are analyzed. The relative error, absolute error, average error and root mean square of the predicted data obtained by the bias bearing capacity prediction model and the theoretical calculation value are smaller.

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Piles and lateral loads: comparison of calculation methods

Kurguzov

Фоменко

2019

Vestnik MGSU

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Introduction. Calculation and analysis of pile resistance to loads remains to be a relevant problem in geoengineering. The design of pile foundations is currently performed using diverse analytical, empirical and numerical methods. However, the reliability of these methods remains to be a topic of interest among researchers and designers. This research paper analyses methods used for calculating the lateral-load capacity of piles in comparison with field-test data. Materials and methods. The paper dwells upon the development of reliable analytical expressions based on mathematical models of the pile–soil interaction. Main existing mathematical models of the soil environment, including the Mohr – Coulomb elastic ideal plastic model and the hardening soil model (HSM) were analysed. A particular attention was paid to a variety of factors affecting the pile–soil interaction, such as natural factors, pile types, pile sinking depth and technology, configurations of loads, as well as time-changed processes. A comparison of methods for calculating the lateral-load capacity of piles was conducted. To that end, calculations using the Mohr – Coulomb model and the local elastic strain theory (still required by building codes) were performed. High-level solid elements were used to develop and compute a finite-element pile-in-soil model in a spatial setting. Another model on the basis of parametric pile elements was designed using the MIDAS software. Results. It is established that the use of numerical calculation methods for evaluating the capacity and movements of pile foundations provides results comparable to those of field tests. These methods demonstrate a higher reliability compared to standardized analytical techniques. Conclusions. The reliability of numerical calculations of pile resistance to lateral impact is shown to be sufficiently high, thus being feasible for use in geoengineering. The use of these methods should be based on advanced non-linear soil models, such as HS, CamClay, etc.

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To the Question About the Assessment Bearing Capacity Driving Reinforced Concrete Piles of Standard Cross Sections on Horizontal Load

Cited by 3 publications

References 1 publication

Tension of ground pressure on the foundations of railway catenary supports

Tension of ground pressure on the foundations of railway catenary supports

Automatic testing system for ceramsite concrete bearing capacity based on genetic algorithm

Piles and lateral loads: comparison of calculation methods

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