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Journal articles on the topic 'Calculation of piles'

Author: Grafiati

Published: 3 May 2022

Last updated: 18 July 2025

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1

Stacho, Jakub, and Monika Súľovská. "Considerations on an embedded pile’s effective length in an analytical calculation according to the commentary on the STN 73 1002 standard." Acta Polytechnica CTU Proceedings 45 (December 14, 2023): 59–65. http://dx.doi.org/10.14311/app.2023.45.0059.

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The analytical model for calculating the bearing capacity of a pile, presented in the commentary to STN 73 1002 – Pile Foundations, gives a recommendation to reduce the pile’s length in the calculation of the shaft resistance. The recommendation is based on Caquot-Kérisel’s theory. Especially in the case of embedded piles, reducing a pile’s length in the calculation can cause the shaft friction of the embedded pile to be neglected, and the calculated resistance of the pile is thus significantly lower. The results of instrumented static load tests of embedded piles were analysed. The main aim o

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2

Wu, Yan Zhi. "Determination of the Anchorage Depth of Rigid Anti-Slide Piles Based on Biparameter Method." Advanced Materials Research 233-235 (May 2011): 2341–45. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.2341.

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In order to improve the design and calculation of anti-slide piles, the design method is proposed which can calculate anchorage depth of rigid piles based on bi-parameter mode of foundation coefficient and the corresponding formula is deduced in details. Based on these formulations，computation programs are developed for design calculations of anti-sliding piles and soil retaining piles for deep foundation pits. The example shows that this method is convenient, reliable and the final result can be directly obtained by simple trial calculation, so it has larger engineering application value. In

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3

Wang, Xiaolei, Zeyuan Wang, Changfeng Yuan, and Libo Liu. "Study on the Horizontal Bearing Characteristic of a New Type of Offshore Rubber Airbag Branch Pile." Sustainability 14, no. 12 (2022): 7331. http://dx.doi.org/10.3390/su14127331.

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In this work, a new type of marine rubber airbag branch pile has been presented, and the influences of the exposed length L0 of the pile, size of rubber airbag branch and depth S0 of rubber airbag branch embedded in soil on the horizontal bearing capacity of the pile, have been investigated using numerical simulations. Simulation results were used to modify the eigenvalue equations of the horizontal bearing capacity. The results also showed that reverse displacement and the bending moment of the rubber airbag branch pile were lower in pipe piles with larger diameters, and the horizontal bearin

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4

Utkin, Vladimir. "Bearing strength calculation of end-bearing piles under recognition of cohesive friction on the pile surface." Stroitel stvo nauka i obrazovanie [Construction Science and Education], no. 2 (June 30, 2019): 1. http://dx.doi.org/10.22227/2305-5502.2019.2.1.

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Introduction. It is a drawback of the existing end-bearing pile design method for soil base bearing capacity that the latter is not taken into account in the assessment of the foundation soil action above the rock or a low-compression soil layer in all cases in accordance with the Building Code 24.13330.2011. However, taking into account the bearing capacity of this layer of the soil base in the load accommodation by the end-bearing pile (under recognition of the pile weight) could increase its calculated bearing capacity by the respective value of the soil base bearing capacity in combination

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5

Liu, Tao, Jun Lv, Xuyan Deng, Chunxiang Guo, Weijia Zhang, and Daijun Jiang. "A Study on the Vertical Bearing Characteristics of Screw Piles in Permafrost Regions." Applied Sciences 15, no. 13 (2025): 7416. https://doi.org/10.3390/app15137416.

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The screw piles used in permafrost regions represent a new type of pile, and their vertical bearing characteristics play a crucial role in ensuring the normal operation of engineering buildings. This study establishes a numerical calculation model to simulate the interaction between screw piles and soil in permafrost regions and verifies the numerical simulation results through model tests. The bearing mechanism of screw piles in permafrost areas is studied and compared with common, bored, cast-in-place piles widely used. Finally, a method for estimating the bearing capacity of screw piles in

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6

Qian, Tong Hui, Hong Xing Ding, Zhou Bing Cheng, and Fang Chen. "Numerical Simulation on Framed Anti-Sliding Piles." Advanced Materials Research 393-395 (November 2011): 209–12. http://dx.doi.org/10.4028/www.scientific.net/amr.393-395.209.

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As a new bracing structure, the framed anti-sliding piless based on spatial framework structure, which have the advantages of less displacement in the top of the piles and large anti-force, are developed as a new retaining structure, and can be used to reduce the piles deformation. However, the previous calculation models of double-row piles ignored the deformation coordination action between linking beams and ring beams, the interaction between piles and beams. Further more the calculation results based on the models are not accurate enough. In this paper, a spatial force model of the framed

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7

Utkin, V. S., and Zh V. Kosheleva. "CALCULATION OF THE EFFECTIVE LENGTH OF COMPRESSED BORED HANGING PILES BASED ON THE BEARING CAPACITY OF THE TWO-LAYER FOUNDATION SOIL." STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS 80 (April 25, 2022): 13–19. http://dx.doi.org/10.37538/0039-2383.2022.5.13.19.

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The article discusses a new method for calculating the effective length of bored hanging piles based on the bearing capacity of a two-layer foundation soil. This calculation problem is of particular importance when it is necessary to use piles of large length and large diameter. The calculation of a hanging pile according to the bearing capacity of the foundation soil adopted in regulatory documents is based on the occurrence of friction forces on the surface of the pile because of its movement (“disruption”) in the ground environment. It does not correspond to the behavior of the pile during

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8

Sedin, Volodymyr, Vladyslav Kovba, Yurii Volnianskyi, and Kateryna Bikus. "Numerical simulation of the stress strain state of base of the multi-helix screw pile under static loading in clay soil." Bases and Foundations, no. 40 (June 4, 2020): 28–36. http://dx.doi.org/10.32347/0475-1132.40.2020.28-36.

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A full-scale experiment was conducted to study the operation of a multi-helix screw pile under static pressing and pulling load in dusty clay soil. Based on the full-scale test of a multi-helix screw pile under static loading in dusty clay soil, numerical modeling of the stress-strain state of the base of the multi-helix screw pile was performed. Multi-helix screw piles are actively used all over the world, and have also become widespread in Ukraine. Foundations made of multi-helix screw piles are often used for industrial construction as well as the foundations of low-rise buildin

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9

Kurguzov, Konstantin V., and Igor K. Fomenko. "Piles and lateral loads: comparison of calculation methods." Vestnik MGSU, no. 10 (October 2019): 1280–91. http://dx.doi.org/10.22227/1997-0935.2019.10.1280-1291.

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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

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10

Xu, Jin, and Yansen Wang. "Stability Analysis and Support Design Methods for Rock Foundation Pit with Combination of Structural Plane and Karst Cave." Advances in Civil Engineering 2022 (April 12, 2022): 1–13. http://dx.doi.org/10.1155/2022/5662079.

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In this paper, the failure mode of the “deep foundation pit slope with high dip angle structural surface and cave development” is analyzed by numerical simulations, and an innovative numerical calculation method for calculating the stability of foundation pit slope based on the principle of upper limit analysis and the prediction method of rock slope surface is proposed. The lateral earth pressure acting on the support structure is further deduced, which can be used more widely than the traditional earth pressure calculation equations. Based on finite element analysis of a pole system, we deve

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11

Mangushev, Rashid, Nadezhda Nikitina, Ле Ван Чонг, and Ivan Tereshchenko. "NUMERICAL ASSESSMENT OF CARRYING CAPACITY AND ANALYSIS OF PILOT BARETT BEHAVIOR IN GEOLOGICAL CONDITIONS OF VIETNAM." International Journal for Computational Civil and Structural Engineering 18, no. 1 (2022): 119–28. http://dx.doi.org/10.22337/2587-9618-2022-18-1-119-128.

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The article provides an analysis and comparison of the bearing capacity of barrett piles in difficult geological conditions at a construction site in Hanoi - Vietnam based on the results of analytical calculations using various methods. In particular, it contains calculation results according to Building Code of Russian Federation SP 24.13330.2011 "Pile foundations" [1], by numerical modeling of the pile operation under load using the PLAXIS 3D and MIDAS GTS NX software package, based on the results of field tests with piles (static load method). It is noted that the bearing capacity of bored

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12

Kovalskyy, Ruslan. "The high-rise building foundation with developed stylobate part design features using piles tests data." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 2, no. 51 (2018): 59–67. http://dx.doi.org/10.26906/znp.2018.51.1293.

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The paper presents two structural solutions for the high-rise building pile foundation where stylobate and high-altitude parts are not separated by a contraction joint studying results. The main difference between these structural solutions is in the use of piles of different lengths: in the first version all piles have the same length (implemented in practice) and the second version (perspective) is use of different lengths of piles and their support various engineering-geological elements (EGE): the longer piles support by stronger EGE under the altitude part and the shorter piles support by

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13

Li, Hong-Yuan. "Comparison and analysis of pile-soil separate calculation and composite foundation calculation method for gravel pile reinforcement." E3S Web of Conferences 237 (2021): 03010. http://dx.doi.org/10.1051/e3sconf/202123703010.

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This paper uses Indraratna seepage theory, Han pile-soil seepage theory and composite foundation theory to establish three plane strain models. Through finite element calculations, the changes in pore pressure and settlement are compared, and the following laws are found: (1) The model established by the composite foundation theory cannot reflect the objective laws of seepage and deformation; (2) In the case of multiple piles, there is no difference in settlement between Han pile-soil seepage theory considering the bearing characteristics of gravel piles and Indraratna seepage theory without c

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14

Ma, Tianzhong, Yanpeng Zhu, and Xiaohui Yang. "Calculation of Bearing Capacity and Deformation of Composite Pile Foundation with Long and Short Piles in Loess Areas." Advances in Civil Engineering 2020 (October 20, 2020): 1–10. http://dx.doi.org/10.1155/2020/8829779.

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In order to calculate the bearing capacity and settlement deformation of composite pile foundations with long and short piles in collapsible loess areas, the theoretical approximate solution was used to obtain the location of the neutral point of single piles. Additionally, based on the equation to calculate the bearing capacity of multielement composite foundations, a method considering the negative frictional resistance was proposed for calculating the bearing capacity of composite pile foundations with long and short piles. Based on the shear displacement method and the principle of deforma

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15

Wang, Jun Jie, Liang De He, Zhi Ming Zhang, and Zhe Jiang Li. "Research on Calculation Method of Internal Force Caused by Seasonal Temperature Difference in All-Vertical-Piled Wharf." Advanced Materials Research 1065-1069 (December 2014): 503–8. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.503.

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When the wharf structure is completed, the temperature is different with the one at the usage period. The temperature difference will lead to the temperature strain, and create the lateral deformation and internal forces of the piles. Based on the assumption of the free temperature difference of beam-slab-system, the spatial simplified calculation model of the foundation pile and the stiff platform about the temperature stress in all-vertical-piled wharf is first proposed, the related calculation method is also given. The numerical example shows that the accuracy of this simplified method coul

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16

Utkin, V. S. "Friction piles behavior in soil base and piles settlement calculation." Vestnik MGSU, no. 9 (September 2018): 1125–32. http://dx.doi.org/10.22227/1997-0935.2018.9.1125-1132.

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17

Qiao, Shifan, Changrui Dong, Guyang Li, Hao Zhou, and Gang Wang. "Modified Interaction Method for Response of Group Piles Considering Pile–Soil Slip." Mathematics 10, no. 15 (2022): 2616. http://dx.doi.org/10.3390/math10152616.

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The existing model for calculating the settlements of group piles is based on the principle of superposition, which fails to calculate the interaction between piles more comprehensively and to take into consideration the influence of slip between pile and soil. In this paper, the interaction between group piles is analyzed from a novel perspective. It is assumed that the interaction between piles is a dynamic equilibrium process, i.e., additional shear forces and additional displacements are continuously transferred between piles until a state of equilibrium is reached. On this basis, we propo

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18

Mykhaylovsky, Denys, Oleh Komar, and Maksym Khoronzhevskyi. "Analysis of existing methods for calculating retaining walls from bored piles." Bases and Foundations, no. 46 (June 26, 2023): 88–97. http://dx.doi.org/10.32347/0475-1132.46.2023.88-97.

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An overview analysis of the methods of calculating retaining walls from driven piles was performed. Analytical calculation of piles in accordance with SNiP 2.02.03–85, calculation taking into account the requirements of change No. 1 DBN V.2.1-10-2009 on the calculation of horizontal stiffness of piles and static calculation of the section using the Lira-CAD software complex were considered, and calculation of a plane cross-section using the finite element method according to the Coulomb-Mohr model in the Plaxis 2D software complex.With population growth and the expansion of cities, the need fo

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19

Orr, T. LL, and C. Cherubini. "Use of the ranking distance as an index for assessing the accuracy and precision of equations for the bearing capacity of piles and at-rest earth pressure coefficient." Canadian Geotechnical Journal 40, no. 6 (2003): 1200–1207. http://dx.doi.org/10.1139/t03-063.

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In many geotechnical design situations, a number of different calculation models have been developed to predict the value of a particular quantity required for use in design calculations, for example, the bearing capacities of driven and root piles, and K0, the at-rest earth pressure coefficient. In this paper the authors show how the dependability of different calculation methods can be compared and assessed using a synthetic probabilistic approach and the ranking distance (RD) index. Measured values, Qmeas, are compared with calculated values, Qcalc, using the "bias factor," defined as the r

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20

Ещенко, Олег, Oleg Eshchenko, Денис Чернявский, and Denis Chernyavskiy. "ASSESSMENT OF GEOMETRIC PARAMETERS OF CONICAL CFA PILES ON THEIR SETTLMENT IN CLAY SOILS." Construction and Architecture 3, no. 2 (2016): 58–60. http://dx.doi.org/10.12737/14917.

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The paper discusses the issues related to the influence of length and angle of the conical side face of CFA piles on their settlement. The results of calculation of displacements of single conical CFA piles by finite element method under static compressive loads are given. A comparative assessment of the influence of the geometrical parameters of CFA conical piles on their settlements in clay soils carried out. The example of the calculation single conical piles CFA shows the effect of the angle of the side face and the length of the piles on the

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21

Jia, Yu, and Long Cai Yang. "Load Distribution Form of Soil between Piles in Geosynthetic Reinforced Pile-Supported Embankment." Applied Mechanics and Materials 178-181 (May 2012): 1605–10. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.1605.

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The strict control standards for post-construction settlement of high-speed railway require high accuracy of settlement calculation. Harmonizing the contradiction that settlement calculation theory lags far behind the engineering practice, the computational method of additional stress of foundation urgently needs improvement. For Geosynthetic Reinforced Pile-Supported (GRPS) embankment, as the stress caused by the load acting on soil between piles is an essential part of the whole, the computed results of additional stress of foundation largely depend on the load magnitude and load distributio

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22

Deng, You Sheng, Jian Qiang Zheng, Chang Zhong Wan, and Shao Hua He. "Calculation for Settlement of High Cap Extra-Long Large Diameter Pile Groups." Applied Mechanics and Materials 178-181 (May 2012): 2171–74. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.2171.

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The settlement of high cap extra-long large diameter pile groups is made up of pile elastic compression and settlement of soil layers under pile end in theory. Methods to calculate pile compression of high cap extra-long large diameter pile groups was deduced or listed. Six methods to calculate settlement of soil layers under pile end were expounded through extra-long large diameter pile groups under south tower of main bridge of Sutong Yangtse River Highway Bridges. The results show that piles’ elastic compression should be calculated into the settlement of extra-long large diameter pile grou

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23

Wang, Jun, Hong Guang Ji, Chuan Qing Wang, and Yun Bai. "Analysis the Settlement Calculation Methods of Combined Piles in Composite Foundation." Applied Mechanics and Materials 71-78 (July 2011): 28–31. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.28.

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Settlement calculation of composite foundation is a hot field in geotechnical engineering research . In the paper with an engineering example, useing the equivalent natural settlement calculation methods and weighted modulus settlement calculation methods to calculate the settlement of composite foundations combined by CFG pile and concrete ramming enlarge pile, which compared with the practical measurement result . The results show that the errors of calculated value of the equivalent natural settlement calculation method were permitted and suitable for calculating composite foundation settle

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24

Wrana, Bogumił. "Pile Load Capacity – Calculation Methods." Studia Geotechnica et Mechanica 37, no. 4 (2015): 83–93. http://dx.doi.org/10.1515/sgem-2015-0048.

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Abstract The article is a review of the current problems of the foundation pile capacity calculations. The article considers the main principles of pile capacity calculations presented in Eurocode 7 and other methods with adequate explanations. Two main methods are presented: α – method used to calculate the short-term load capacity of piles in cohesive soils and β – method used to calculate the long-term load capacity of piles in both cohesive and cohesionless soils. Moreover, methods based on cone CPTu result are presented as well as the pile capacity problem based on static tests.

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25

Zhussupbekov, A. Zh, V. M. Ulitsky, V. M. Polunin, and A. Yu Shvaluchinsky. "Forecasting of the bearing capacity of piles in a bilinear formulation based on the results of pile tests." Вестник гражданских инженеров 20, no. 1 (2023): 46–56. http://dx.doi.org/10.23968/1999-5571-2023-20-1-46-56.

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The article analyzes the possibility of using the analytical method for forecasting the bearing capacity of piles in a bilinear formulation for prefabricated piles. The pile bearing capacity forecasting method in a bilinear formulation is an alternative pile bearing capacity forecasting technique that allows obtaining a load-settlement graph for a single pile, which makes it possible to forecast the pile bearing capacity in an analytical formulation. There were carried out 12 full-scale tests of bored piles and 19 factory-made piles for static indentation load. For each test, there was perform

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26

Sidorov, Vitalii, Duc Anh Le, and Evgeny Sobolev. "Comparative calculation of piles taking into account seismic impacts (example in Ho Chi Minh City)." E3S Web of Conferences 263 (2021): 02021. http://dx.doi.org/10.1051/e3sconf/202126302021.

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The construction of high-rise building and structures has been widely developed recently in Vietnam. Pile foundations are considered one of the most suitable solutions when choosing the foundations for their construction, especially in difficult geological conditions, including seismic areas. According to many researches, geological conditions of Ho Chi Minh City are generally difficult. The occurrence of earthquakes there influences the conditions for the construction. Besides, many historical cases have shown that soil liquefaction is often manifested, negatively affecting the underground st

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27

Song, Bo, Hai Long Wang, and Shi Jing Liu. "Comparative Study on Seismic Design Method of High-Piled Wharf of Different Depth in China and Japan." Advanced Materials Research 919-921 (April 2014): 1043–46. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.1043.

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As many high-piled wharves are in an earthquake zone in home and abroad, so it is vitally important to conduct seismic design to ensure them with a certain seismic capacity. Studies showed that the wharves with straight piles have better seismic performance than wharves with oblique pile. According to the standards in China and Japan, this paper will compare the indicators of seismic performance, including the calculation length of piles, seismic inertial force, bearing capacity etc. The difference between Chinese code and Japanese code will be confirmed through comparison. The comparative res

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28

Utkin, V. S., Zh V. Kosheleva, and L. A. Sushev. "Calculation of the effective length of hanging under-ream bored piles under compressive load in a homogeneous ground of the base." STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS 303, no. 4 (2022): 55–60. http://dx.doi.org/10.37538/0039-2383.2022.4.55.60.

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The article considers the calculation of the effective length of an under-ream bored pile and a pile without broadening. The pile is located under axial compression conditions in a homogeneous ground of the base. Reducing the cost of piles is an important problem, since the manufacture of piles with broadening is characterized by increased cost. This can be achieved by identifying the value of the effective pile length. The length of the pile is considered effective if a stress in the ground is reached under its widened part equal to the calculated value R of the resistance of the ground of th

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29

DUBINCHYK, O. I., and I. M. ILNYTSKYI. "METHOD FOR CALCULATING THE BEARING CAPACITY OF A SCREW PILE WITH A SPIRAL BLADE BY THE SOIL." Bridges and tunnels: Theory, Research, Practice, no. 25 (May 9, 2024): 53–64. http://dx.doi.org/10.15802/bttrp2024/303293.

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Purpose. The purpose of the scientific article is to study and substantiate the principle methodology for calculating the bearing capacity of a screw pile with a spiral blade on the basis of field tests of a prototype pile using existing methods of theoretical calculation of similar piles. Determination of the bearing capacity of a pile with a spiral blade by the soil according to the first limit state. Also, the goal is to determine certain regularities in the modeling of pile structure. Methodology. A metal elements pile is used as a test sample. Determination of the theoretical bearing capa

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30

Zhang, Hao, and Ming Lei Shi. "Mechanical Performance of Settlement-Reducing Pile Foundation with Cushion." Advanced Materials Research 368-373 (October 2011): 2545–49. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.2545.

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The main objective of adding piles to a raft is sometimes for settlement control. In design, the number of piles for reduce settlements under work load to a tolerable limit is usually small. This often results in a high stress in piles that may impede the application of this foundation due to the limits on raft stress or pile stress in practice. An alternative is to install a cushion between piles and raft. In this paper, the performance of disconnected settlement-reducing piles is studied. Based on some simplifications, a mechanical model of pile penetration into cushion and a calculation met

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31

Korovkin, Vladimir. "Numerical simulation of urban berthing quays in a dense housing." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 2 (June 17, 2015): 153. http://dx.doi.org/10.17770/etr2015vol2.236.

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<p>Calculation of pile quay gantry type as a frame with rigid crossbarand a rigid beam, is a special case of the decision method, presented by N. Gersevanov. This method was widely used in the technical literature and regulatory documents. Translation of manual calculation on the computer almost retained the existing design scheme.</p><p>Practical implementation of the engineering universal method offered early to calculation of mooring embankments in relation to a thin wall, is given by anchored inclined piles. In the calculation scheme bottom sealing is not used, and entere

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32

Liu, Ming-Quan, Da Huang, Yi-Xiang Song, and Duo-Feng Cen. "Numerical and Theoretical Study on the Settlement of Capped Piles Composite Foundation under Embankment." Advances in Civil Engineering 2020 (August 18, 2020): 1–11. http://dx.doi.org/10.1155/2020/3978780.

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Capped piles are efficient in settlement control and have been widely used in the reinforcement of soft soil foundations for high-speed railways and highways. In this study, scenarios involving both capped piles and ordinary piles without caps are numerically studied using the finite element software (ABAQUS). The settlement characteristics of capped piles composite foundation considering the effects of both the pile spacing and the ratio of pile cap to pile diameter are achieved. Based on the numerical results, assuming that the capped pile and the soil under the cap jointly bear load and set

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33

Li, Xunchang, Yutong Ran, Kang Wang, and Zhengzheng Shi. "Study of Load Calculation Models for Anti-Sliding Short Piles Using Finite Difference Method." Applied Sciences 13, no. 22 (2023): 12399. http://dx.doi.org/10.3390/app132212399.

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Anti-sliding short piles, a novel technique for slope stabilization, have been applied in engineering practices. Nonetheless, a mature structural calculation theory for these piles is still lacking. In this paper, the study presents an internal force solution model for anti-sliding short piles using the finite difference method. By extending the Euler–Bernoulli beam theory and defining boundary conditions, this study develops a set of finite difference equations for computing the structural forces of anti-sliding short piles. Furthermore, this study conducted laboratory model tests on soil lan

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34

Kolesnikov, Aleksei O., Tatiana N. Kostiuk, and Vladimir N. Popov. "Calculation of foundation vertical stiffness with the piles mutual influence effect." Structural Mechanics of Engineering Constructions and Buildings 15, no. 3 (2019): 229–36. http://dx.doi.org/10.22363/1815-5235-2019-15-3-229-236.

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Aims of research. Studies to determine the effect of the distance between the piles in group with vertical oscillations of pile foundations on the value of dynamic stiffness are carried out and the results obtained in full-scale tests, within the wave model and according to SP 26.13330.2012 are compared. Methods. The eigenfrequency changes of the foundation of nine piles with a diameter ( d ) with a high pile cap are calculated depending on the distances between the piles - 2 d , 3 d and 5 d . The obtained results are compared with the data obtained after a series of pulse dynamic loads perfor

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35

Chen, Jian Bin, Zhou Jun, Li Peng Wu, et al. "Calculation and Application of Ultimate Lateral Friction Resistance of Concrete Piles under Different Soil Layer Materials." Key Engineering Materials 972 (December 22, 2023): 153–63. http://dx.doi.org/10.4028/p-1arbop.

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In practical engineering applications, it usually gets the expected value of the ultimate side friction of concrete piles by the empirical parameter method. The expected value of the ultimate side friction of concrete piles cannot achieve maximum optimization due to the complexity of formation conditions and the lack of experience of technicians. To accurately obtain the ultimate lateral friction resistance of piles in homogeneous soil layers, optimize the standard value of pile ultimate lateral resistance, ensure construction safety, and save construction costs, the research method combining

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36

Hasibuan, M. Husni Malik, Jupriah Sarifah, and Ferdi Irawan. "ANALYSIS OF CONFIGURATION OF PILE GROUP ON SUPPORTING CAPACITY AND PILE EFFICIENCY IN TANJUNG BALAI FLAT CONSTRUCTION." Jurnal Teknik Sipil dan Arsitektur 29, no. 1 (2024): 50–58. http://dx.doi.org/10.36728/jtsa.v29i1.2774.

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In the TanjungBalai Flats creation project, the inspiration used is a mini pile basis with a set pile device. The organization pile device on the inspiration withinside the creation of this flat is deliberate to have a exclusive wide variety of piles, particularly piles, 3 piles, 4 piles. Therefore, on this look at diverse pile configurations might be completed with the aid of using modelling exclusive configurations with the equal wide variety of piles as the development of this flat. Furthermore, the sporting ability and performance values might be as compared that is the first-class value.

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Degtyar, A. A., and A. M. Burgonutdinov. "REINFORCEMENT OF SUBGRADE DOUBLE-CONE PILES." Russian Journal of Building Construction and Architecture, no. 2(50) (May 21, 2021): 62–73. http://dx.doi.org/10.36622/vstu.2021.50.2.005.

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Statement of the problem. The problem of designing the reinforcement method of weak seasonally freezing soils in subgrade base by using double-cone hollow piles and geotechnical materials for roads in the northern regions of the Russian Federation is investigated. Results. As a result of the study, the construction of the subgrade in the form of pile strip foundation of double-cone piles reinforced by geotechnical materials on weak heaving soils taking into account traffic loads and weight of subgrade is considered. A method has been developed of calculating the road base in the form of pile s

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Xu, Xiao Lin, Quan Cai Wang, Hao Wang, and Qing Wu. "Composite Structure Stress Analysis of Row Posture Micro-Piles on Slope Protection." Advanced Materials Research 446-449 (January 2012): 3051–57. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3051.

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The composite structure of row posture micro-piles is a light-weight protection structure for slope, which has the advantages of safe and quick construction, high adaptability to some special environment, and is suited to small size slope protection, especially in the emergency project. The design theory research of this composite structure is obviously deficient comparing to the engineering application. The basic requirement of the elastic foundation-beam theory application is that the foundation should be stable. Because of the row posture micro-piles composite structure improved the stabili

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Liu, Xu, Guofu Sun, Jixiang Li, and Yunlong Chen. "A new model for mechanical calculation of h-type anti-slide piles." Advances in Computer and Engineering Technology Research 1, no. 3 (2024): 326. http://dx.doi.org/10.61935/acetr.3.1.2024.p326.

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Faced with the daunting complexity of large-scale slope instabilities, conventional anti-slide pile (AP) designs often fall short in effectively mitigating these intricate geotechnical challenges due to inherent limitations. It is within this context that the h-type anti-slide piles (HTPs) emerge as a groundbreaking frame-style retaining structure, outperforming standalone piles in terms of mechanical prowess, largely due to their significantly augmented lateral stiffness. However, the existing analytical calculation methods for HTPs reveal significant inadequacies. On one hand, current theori

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Chen, Rongbao, Jichao Zhang, Zeyu Chen, and Meixiang Gu. "A Novel Numerical Method for Calculating Vertical Bearing Capacity of Prestressed Pipe Piles." Advances in Civil Engineering 2020 (November 17, 2020): 1–20. http://dx.doi.org/10.1155/2020/8828587.

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A novel method for calculating the vertical bearing capacity of prestressed pipe piles with the acceptable error was proposed and verified. Soils at the pile side and end were, respectively, simulated by an elastic-plastic model and a new double-line (at soft rock and soil layers) or triple-line model (at hard rock and soil layers); then, a mechanical model was established for simulating vertical bearing capacity of prestressed pipe piles, and the corresponding calculation process was carried out. The values of pile side resistance, pile end resistance, and pile end elastic displacement were f

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Cunha, Renato P., and Miguel Pando. "Influence of Pile-Soil-Raft Parameters on the Behavior of Piled Raft and Conventional Piled Group Foundations." Soils and Rocks 36, no. 1 (2013): 21–35. http://dx.doi.org/10.28927/sr.361021.

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In the Central Area of Brazil, particularly in the city of Goiânia (and in limited cases of the Brazilian capital Brasília), it is becoming common to observe in few foundation projects the design of a single, thick and large raft, supported by several piles, particularly for the central highly loaded and slender part of very tall buildings. In fact, many of these piles are designed as “settlement reducer” ones, behaving as “floating piles” with distinct geometries or relative pile stiffness (pile-soil) ratios. They are defined with basis on some rationalized procedure adopted to minimize the d

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Huang, Chao-xuan, Yue Liu, Zhi-wei Yao, Jun-jie Li, and Yong Xia. "Research and application of double-row steel sheet pile stability in soft soil foundation." Journal of Physics: Conference Series 2029, no. 1 (2021): 012082. http://dx.doi.org/10.1088/1742-6596/2029/1/012082.

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Abstract In view of the complex stability calculation of double-row steel sheet piles in soft soil foundation, based on the theory of soil mechanics, the control analysis was carried out from the aspects of anti-uplift stability, overall anti-slip stability, anti-overturning stability, and overall sliding stability of the sheet pile. By theoretical derivation and calculation, the calculation formula of the minimum penetration depth Ld of steel sheet piles is given. Taking the double-row steel sheet pile cofferdam project of the sluice of the Oufei Reclamation Project in Zhejiang Province of Ch

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Zemanová, Alena, Vojtěch Anderle, and Jan Masopust. "Settlement of piles with negative skin friction: design approaches according to part 3 of Eurocode 7." Acta Polytechnica 64, no. 6 (2025): 588–604. https://doi.org/10.14311/ap.2024.64.0588.

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Piles offer an effective solution for supporting structures in challenging ground conditions. However, ground settlement around deep foundations can induce negative skin friction, adding complexity to the geotechnical analysis and requiring careful consideration in both the pile settlement evaluation and structural integrity design. The article discusses the general recommendations provided by the informative annex of the revised Eurocode 7 version for designing piles subjected to negative skin friction. Using the Fellenius unified pile design concept, we provide a practical design framework f

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Sun, Lin Na, Yan Liu, and Li Ming Zhang. "A Method of Calculation on the Deformation of Column Piles in Deep Foundation Pit." Applied Mechanics and Materials 291-294 (February 2013): 1131–34. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1131.

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During excavation of deep foundation pits, the effects of vertical deformation on column piles are often neglected while those uplifts may lead to destruction of internal supports. The factors leading to the column piles' vertical deformation mainly include basal uplift and vertical loads. In this paper, the causation and mechanism of the column piles' uplift are discussed. The influence of the additional bending moment due to the column piles' vertical deformation on the overall stability of the founda-tion pit is analyzed. A calculation method of the permissible value of vertical deformation

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Zhou, Zhijun, Shanshan Zhu, Xiang Kong, Jiangtao Lei, and Tong Liu. "Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China." Advances in Civil Engineering 2019 (April 18, 2019): 1–16. http://dx.doi.org/10.1155/2019/7085104.

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The settlement calculation of postgrouting piles is complex and depends on the calculation method and parameters. Static load tests were conducted to compare the settlement characteristics of nongrouting and postgrouting piles, and three vital parameters in the layer-wise summation method were revised to predict the settlement of postgrouting piles. The elastic compression coefficient was deduced based on the Mindlin–Geddes method by considering the influence of the change in the pile side resistance distribution and end resistance ratio on the elastic compression after grouting. The relations

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Gwizdała, Kazimierz, and Paweł Więcławski. "Displacement piles – classification and new methods for the calculation of bearing capacity." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 29, no. 3 (2020): 308–18. http://dx.doi.org/10.22630/pniks.2020.29.3.26.

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The paper presents technological changes concerning not only the method of construction, but also the materials used. Another aspect is the methods of calculating the load-bearing capacity and settlement of piles. With acceptance for use the PN-EN:1997-1:2008 standard in 2010, it was necessary to change the approaches applied that based on many years of experience and tradition. The best method in this case is to forecast the full load-settlement characteristics. On the basis of the collected data, a comparative analysis of particular displacement piles technologies was made. The usefulness of

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Chen, Ying Hui, and Yan Lian Pan. "The Numericial Calculation of Retaining Structure with Double-Piles." Applied Mechanics and Materials 530-531 (February 2014): 928–31. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.928.

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Combined with a foundation pit in kunming, the paper use the finite-difference software flac3d to establish engineering model and carry on the numerical simulation to simulate the excavation on the initial engineering condition of the double-row piles retaining structure. Summarize the calculation results when change the distance of the pile-rows and the length of the piles to analyze the results differences and changing law. The conclusion has some practical value in engineering.

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48

Shu, Jiaqing, Xiaoqing Gu, Tengfei Wang, Xiaojuan Li, and Mingxing Zhu. "Influence of the Internal Friction Resistance on the Vertical Compressive Bearing Capacity of Large-Diameter Steel Pipe Piles." Buildings 14, no. 11 (2024): 3481. http://dx.doi.org/10.3390/buildings14113481.

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Current calculation methods for the vertical bearing capacity of steel pipe piles are predominantly designed for smaller diameters and do not account for the soil inside the pile. This necessitates an evaluation of their applicability to piles with diameters exceeding 2.0 m. This study aims to refine the existing formula for calculating vertical bearing capacity, as outlined in the Port Engineering Foundation Code of China, by investigating the vertical bearing capacity of large-diameter steel pipe piles through numerical simulations. By analyzing the relationship between the internal friction

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Jiu, Yongzhi, Yunfeng Gao, Fuguang Lei, Yanzhi Zhu, and Zhizeng Zhang. "Nonlinear Analysis of Bearing Characteristics of Stiffened Deep Cement Mixing Piles under Vertical Loading." Buildings 14, no. 3 (2024): 816. http://dx.doi.org/10.3390/buildings14030816.

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Stiffened deep cement mixing (SDCM) piles are composite piles that combine the advantages of single large-diameter deep cement mixing (DCM) and precast concrete piles. They comprise precast concrete piles as the core and cast-in-place DCM piles as the outer layer. This study evaluates the bearing characteristics of SDCM piles under vertical loading. The composite modulus of elasticity of SDCM piles is first introduced and determined using the area-weighted average method. Then, the reliability of the proposed method is described by comparing the calculated results with the findings of the exis

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Li, Chunbao, Xiaosong Ma, Shifeng Xue, Haiyang Chen, Pengju Qin, and Gaojie Li. "Compressive Capacity of Vortex-Compression Nodular Piles." Advances in Civil Engineering 2021 (January 12, 2021): 1–18. http://dx.doi.org/10.1155/2021/6674239.

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Compared with traditional equal-section pile, the nodular parts of nodular pile expand the contact area between the pile and foundation soil, which can greatly improve the bearing capacity of pile foundation and increase the stability of pile body structure. In this paper, the mechanism of pile-soil interaction in the construction of vortex-compression nodular pile is studied with the purpose of evaluating the compressive capacity of nodular piles. Through the indoor model test and ABAQUS numerical simulation analysis, the compressive characteristics of 12 types of vortex-compression nodular p

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