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Journal articles on the topic 'Soil pile'

Author: Grafiati

Published: 6 September 2023

Last updated: 26 July 2025

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1

Liu, Wei Zheng, Jun Hui Zhang, and Hao Zhang. "Analysis on Pile-Soil Stress Ratio of Composite Foundation with Sparse Capped-Piles under Lime-Soil Embankment Load." Applied Mechanics and Materials 501-504 (January 2014): 124–31. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.124.

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The combined effect of the embankment fill, piles and caps, and foundation soils on the load transfer characteristics of sparse capped-piled embankment is very significant. Using the modified cylindrical shear stress transfer model based on Marston soil pressure theory, a new calculation method for pile-soil stress ratio of sparse rigid pile composite foundation incorporating the arching effect in lime-soil and soil-pile interaction was presented. The presented method is verified by comparison between analytical solutions and the observed results from a practical project. In addition, a parame

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2

Fellenius, Bengt H. "Results from long-term measurement in piles of drag load and downdrag." Canadian Geotechnical Journal 43, no. 4 (2006): 409–30. http://dx.doi.org/10.1139/t06-009.

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Several full-scale, long-term tests on instrumented piles performed since the 1960s and through the 1990s are presented. The results of the tests show that a large drag load will develop in piles installed in soft and loose soils. The test cases are from Norway, Sweden, Japan, Canada, Australia, United States, and Singapore and involve driven steel piles and precast concrete piles. The test results show that the transfer of load from the soil to the pile through negative skin friction, and from the pile back to the soil through positive shaft resistance, is governed by effective stress and tha

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3

Zhang, Hao, Ming Lei Shi, Rui Kun Zhang, and Yu Zhao. "Load Transfer Mechanism of Embankment Supported by Sparse Piles." Applied Mechanics and Materials 178-181 (May 2012): 1396–401. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.1396.

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The load transfer property of embankment fills, cushion, pile (or with cap) and foundation soils are complicated in a piled embankment. In this paper, the vertical load effects of pile and foundation soils at the bottom of embankment were analyzed with consideration of the interaction of each component. The arching effect of embankment fills and the pile-soil interaction were respectively formulated, and then, with continuous displacements and stresses at the bottom of embankment, a calculation method of pile-soil stress ratio was presented. In addition, the influence of the setting of cushion

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4

Wang, Kangyu, Jun Cao, Xinquan Wang, and Yingjie Ning. "Soil Arching of Piled Embankment in Equal Settlement Pattern: A Discrete Element Analysis." Symmetry 13, no. 9 (2021): 1627. http://dx.doi.org/10.3390/sym13091627.

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Soil arching, which occurs in the piled embankments, plays an important role in stress redistribution between the relatively soft subsoil and the stiffer piles. The formation of the soil arching depends on the differential settlement of the embankment fill above the pile and the subsoil. The soil arching effect is barely investigated in the literature from the perspective of differential settlement of piles and soils. Based on the discrete element method (DEM), this paper develops a classic trapdoor test model to investigate the differential settlement in piled embankment during the downward m

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5

Zhao, Min, and Wei Ping Cao. "A Numerical Analysis of Soil Arching in Piled Embankments." Advanced Materials Research 468-471 (February 2012): 638–42. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.638.

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Soil arching has important influence on the behavior of piled embankments. How to calculate stress concentration ratio is of great concern when designing embankment over soft soils reinforced by rigid concrete piles. A numerical analysis by using a commercial FEM program was conducted to reveal the mechanism of soil arching in piled embankments. And also, the influence of embankment height, pile-soil relative displacement, cohesion and internal friction angle on the equal settlement plane was evaluated. The results indicate that the stress concentration ratio varies with the pile-subsoil relat

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6

Hartono, Edi. "Analisis Lendutan Model Pelat Fleksibel dengan Tiang Perbesaran Ujung dan Pelat Tidak Rapat Tanah Pada Tanah Pasir." Semesta Teknika 17, no. 1 (2015): 10–16. http://dx.doi.org/10.18196/st.v17i1.410.

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Problems in sandy soil may occur when sand has low density, uniform gradation and thick deposit. Flexible plate foundation may used in this condition but plate deflection still high. To reduce deflection and to improve soil density, piles were used to support the plate. Installing piles made foundation system stiffer. The objectives of this study are to studies about behavior of plates and plate with pile on sandy soil. Plate deflection was observed with variation of plate thickness, bottom pile enlargement, and soil-plate-pile interaction (free standing pile and piled foundation). 1,2 x 1,2 x

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7

Liu, Qiu Sheng, and Dong Feng Liu. "Study on Embedded Pile Length in Slope Reinforced." Applied Mechanics and Materials 105-107 (September 2011): 1497–504. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1497.

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The embedded length of anti-slide piles reinforcing slopes is analyzed by three-dimensional elasto-plastic shear strength reduction finite difference method. The effect of embedded pile length on safety factor and pile behavior, and the effects of the pile spacing, pile head conditions, bending stiffness and soil style on pile length and pile behavior are analyzed. The results show that the pile spacing and the pile head conditions have significant influence on the critical pile length. The critical pile length is seen to increase with decreasing pile spacing, and smaller pile spacing tends to

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8

Teji, Biya Degefu, and Argaw Asha Ashango. "Performance Optimization of Piled Raft Foundations in Layered Soil under Uniform Vertical Loading Using Plaxis 3D." Advances in Materials Science and Engineering 2023 (November 20, 2023): 1–11. http://dx.doi.org/10.1155/2023/6693876.

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Piled raft foundations are composite foundations that combine piles and raft to support civil engineering structure and to reduce the settlement. The data were obtained from Addis Ababa, Ethiopia. In this study, the effects of raft thickness, number of piles, pile length, spacing of piles, and pile diameter on the response of piled-raft foundations were investigated using the finite element-based program Plaxis 3D for layered soils (medium to very stiff high plastic silty clay and medium to very dense silty sand soil) subjected to uniform vertical loading. The results showed that increasing th

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9

Wu, Lijun. "Performance of Geosynthetic-Reinforced and Cement-Fly Ash-Gravel Pile-Supported Embankments over Completely Decomposed Granite Soil: A Case Study." Advances in Materials Science and Engineering 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/2659628.

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This paper presents a full-scale test of the high-speed railway embankment to investigate the performance of cement-fly ash-gravel (CFG) pile-supported embankments over completely decomposed granite (CDG) soils. The authors compared the embankments built on CDG soils reinforced by geogrid only and geogrid and CFG piles in terms of ground settlement, layer settlement, and pile efficacy. Experimental results show that the CFG pile-supported embankment built on CDG soils performs well. The soil arching of CFG piled reinforcement is effective and significantly increases with surrounding soil conso

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10

Jamil, Irfan, Irshad Ahmad, Wali Ullah, Mahmood Ahmad, Mohanad Muayad Sabri Sabri, and Ali Majdi. "Experimental Study on Lateral and Vertical Capacity of Piled Raft and Pile Group System in Sandy Soil." Applied Sciences 12, no. 17 (2022): 8853. http://dx.doi.org/10.3390/app12178853.

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In deep foundations, the pile group and the pile raft are generally used. To date, the contribution of the raft is not taken into account in the design, even when the raft is in contact with the soil and the whole system is therefore considered to work as a pile group foundation. In a combined pile raft system, the raft takes a considerable portion of the applied load, depending upon the number of piles, the spacing to diameter ratio of the piles, and the length to diameter ratio. In this paper, an experimental investigation is carried out to study the response of small-scale pile group and pi

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11

Cao, Wei Ping, Min Zhao, and Qi Chao Shi. "A Numerical Analysis on the Behavior of End-Bearing Pile for Supporting Embankment over Soft Soils." Advanced Materials Research 378-379 (October 2011): 502–6. http://dx.doi.org/10.4028/www.scientific.net/amr.378-379.502.

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Piled embankments are increasingly used to construct highways on soft soils. End-bearing piles for supporting embankment exhibit different characteristics for the soil arch developed within the embankments. A numerical analysis was conducted to evaluate the soil stress concentration ratio, pile and soil settlements, pile axial force, negative skin friction (NSF) and location of the neutral plane (NP) during embankment filling and consolidation of soft soils. The results indicate that the stress concentration ratio varies with time and most of the embankment load is born by the pile. The soil p

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12

Pratama, Ignatius Tommy, Budijanto Widjaja, and Kelvin Agustinus Budianto. "Numerical study on pile group efficiency for piles embedded in cohesive and cohesionless soils." E3S Web of Conferences 429 (2023): 04003. http://dx.doi.org/10.1051/e3sconf/202342904003.

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This paper aims to study the efficiency of pile groups with various numbers of piles and pile spacing. Axial loading tests on pile groups and also single piles were simulated using a three-dimensional finite element program to obtain the load-settlement curve and the ultimate bearing capacity of the piles which was later used to estimate the pile group efficiency. In this study, the piles were embedded in cohesive and cohesionless soils. The stress-strain responses of the soils and the concrete pile and pile cap were simulated using the Mohr-Coulomb and the linear elastic models, respectively.

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13

Alhassani, Athraa Mohammed Jawad, and Ala Nasir Aljorany. "Parametric Study on Unconnected Piled Raft Foundation Using Numerical Modelling." Journal of Engineering 26, no. 5 (2020): 156–71. http://dx.doi.org/10.31026/j.eng.2020.05.11.

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Piled raft is commonly used as foundation for high rise buildings. The design concept of piled raft foundation is to minimize the number of piles, and to utilize the entire bearing capacity. High axial stresses are therefore, concentrated at the region of connection between the piles and raft. Recently, an alternative technique is proposed to disconnect the piles from the raft in a so called unconnected piled raft (UCPR) foundation, in which a compacted soil layer (cushion) beneath the raft, is usually introduced. The piles of the new system are considered as reinforcement members for the subs

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14

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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15

Xie, Yunfei, and Shichun Chi. "Optimization Method for Irregular Piled Raft Foundation on Layered Soil Media." Advances in Civil Engineering 2019 (May 20, 2019): 1–15. http://dx.doi.org/10.1155/2019/5713492.

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Important buildings such as nuclear power plants always require stricter control of differential settlement than ordinary buildings. Therefore, it is necessary to provide an optimized design for the piled raft foundations of important buildings. In this paper, a new optimization method (using different pile diameters and different pile spacing) was proposed for the design of piled raft foundations. This method adjusts the pile diameters and pile spacing according to the stress distribution at the pile top of the initial design to achieve a more uniform settlement of the raft and stress distrib

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16

Yang, Qingnian, Jianli Shao, Zhijun Xu, and Yu Miao. "Experimental Investigation of the Impact of Necking Position on Pile Capacity Assisted with Transparent Soil Technology." Advances in Civil Engineering 2022 (February 7, 2022): 1–10. http://dx.doi.org/10.1155/2022/9965974.

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Necking in different positions of a pile body has a significant influence on the bearing performance of a single pile. The transparent soil model experiment was adopted to investigate the impacts of necking positions on the vertical bearing capacity of a single pile and the soil deformation around the pile, and subsequently, the causes of the variation of bearing capacity were analyzed. The results show that the existence of necking does not change the bearing behavior of single pile as pile friction resistance. The bearing capacity of piles decreased by 8.21% and increased by 7.30% when the n

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17

Chen, R. P., Y. M. Chen, J. Han, and Z. Z. Xu. "A theoretical solution for pile-supported embankments on soft soils under one-dimensional compression." Canadian Geotechnical Journal 45, no. 5 (2008): 611–23. http://dx.doi.org/10.1139/t08-003.

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Pile-supported embankments are increasingly being used for highways, railways, storage tanks, etc. over soft soil because of their effectiveness in accelerating construction and minimizing deformation. The stress transfer mechanisms among all of the components in a piled embankment, including the embankment fill, the piles and (or) caps, and the foundation soils, are complicated. In this study, a closed-form solution for one-dimensional loading was obtained taking into consideration the soil arching in the embankment fill, the negative skin friction along the pile shaft, and the settlement of

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18

Ahmed, Danish, Siti Noor Linda Bt Taib, Tahar Ayadat, and Alsidqi Hasan. "Numerical Analysis of the Carrying Capacity of a Piled Raft Foundation in Soft Clayey Soils." Civil Engineering Journal 8, no. 4 (2022): 622–36. http://dx.doi.org/10.28991/cej-2022-08-04-01.

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Piled raft foundations are a common type of foundation for high-rise buildings. Unlike shallow foundations, deep foundations (piles) pass through weak or soft soil deposits and can reach stiff soil or bedrock to support the weight of the structure. In this paper, the performance of a medium embedment depth piled raft foundation in soft soil is presented. A numerical model was developed and a parametric study was conducted in order to simulate the case of such a foundation system and to investigate its performance in soft clay. This parametric study investigated the effect of the geometry of a

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19

Yu, Yiliang, Xiaohua Bao, Zhipeng Liu, and Xiangsheng Chen. "Dynamic Response of a Four-Pile Group Foundation in Liquefiable Soil Considering Nonlinear Soil-Pile Interaction." Journal of Marine Science and Engineering 10, no. 8 (2022): 1026. http://dx.doi.org/10.3390/jmse10081026.

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Piles, which are always exposed to dynamic loads, are widely used in offshore structures. The dynamic response of the pile-soil-superstructure system in liquefiable soils is complicated, and the interaction between the pile and soil and the pile volume effect are the key influencing factors. In this study, a water-soil fully coupled dynamic finite element-finite difference (FE-FD) method was used to numerically simulate the centrifuge shaking table (CST) test of a four-pile group in saturated sand soil. An interface contact model was proposed to simulate the pile-soil interaction, and a solid

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20

Utkin, Vladimir S. "Reliability analysis of an end-bearing pile with account for friction forces on the pile surface." Stroitel stvo nauka i obrazovanie [Construction Science and Education], no. 1 (March 31, 2020): 2. http://dx.doi.org/10.22227/2305-5502.2020.1.2.

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Introduction. The behavior of end-bearing piles in the foundation soil and the methodology for their reliability analysis, treated as operational safety measures applicable to a separate bearing element of a pile foundation, need clarification and further development. The weakness of the established reliability analysis methodology, focused on the bearing capacity of the foundation soil, is its failure to take account of each case of the soil behavior above rock or low compressibility soils pursuant to Construction rules and regulations 24.13330.2011. Taking account of the bearing capacity of

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21

Shakirov, Ildus. "Bearing capacity of piles in a reinforced by pressure cementation soil massif." E3S Web of Conferences 274 (2021): 03023. http://dx.doi.org/10.1051/e3sconf/202127403023.

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Studies of the piles bearing capacity after strengthening soil by cement mortar pressure injection were carried out to determine pile foundations bearing capacity increasing patterns in a result of soils cementation. Depending from the volume and cement mortar technological injection parameters, the soil stress state around the pile changes, additional pile-soil compression occurs and the friction along the lateral surface increase, as well as the soil resistance under the pile bottom end. Cementation effect on the pile bearing capacity for different injectors location and the number of piles

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22

Ahmed, Danish, Siti Noor Linda Bt Taib, Tahar Ayadat, and Alsidqi Hasan. "A Review on the Behaviour of Combined Stone Columns and Pile Foundations in Soft Soils when Placed under Rigid Raft Foundation." ASM Science Journal 16 (July 15, 2021): 1–8. http://dx.doi.org/10.32802/asmscj.2021.709.

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In the last few decades, it has been observed that raft foundations are very commonly used as a foundation solution for moderate to high rise structures either by resting on stone columns or on piles in soft soils. It is believed that, combining stone columns and piles in one foundation system is the more suitable foundation for medium rise structures. The combined foundation system provides a superior and more economical alternative to pile, and a more attractive alternative to stone columns in respect to ground improvement. This paper presents the review of existing studies reported in the l

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23

Samirsinh, P. Parmar. "A Review on Piled- Raft Foundation analysis methods and Recommendations in Research." Research and Review: Journal of Structural and Building Construction 1, no. 1 (2025): 1–20. https://doi.org/10.5281/zenodo.14807735.

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<em>Piled raft foundations have gained significant popularity in recent years due to their ability to enhance bearing capacity, minimize settlement, and mitigate differential deflection. This foundation system efficiently distributes structural loads, with the raft directly transferring part of the load to the soil while the piles contribute through skin friction. Compared to conventional pile foundations, piled raft foundations offer economic advantages by allowing pile termination at higher elevations without penetrating the full depth of weak soil layers. However, they exhibit more settleme

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24

Elsawwaf, Mostafa, Marwan Shahien, Ahmed Nasr, and Alaaeldin Magdy. "The behavior of piled rafts in soft clay: Numerical investigation." Journal of the Mechanical Behavior of Materials 31, no. 1 (2022): 426–34. http://dx.doi.org/10.1515/jmbm-2022-0050.

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Abstract This research aims to investigate the applicability and performance of piled rafts in soft clay. This aim has been achieved by studying how the pile length, pile number, raft-soil relative stiffness, and presence of a sand cushion beneath the raft would affect piled raft settlement, differential settlement, and load sharing. Piled rafts have been numerically simulated using PLAXIS 3D software. Experimental testing results were used to verify the numerical simulation. The portion of the load carried by the piles to the total applied load was represented by the load sharing ratio (GPR).

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25

Cao, Wei Ping, and Min Zhao. "Performance of Floating Piles for Supporting Embankments in Soft Soils." Applied Mechanics and Materials 105-107 (September 2011): 1433–37. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1433.

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Reinforced concrete piles are often used to support highway embankments in soft soils. The performance of floating piles differs significantly from that of end-bearing piles. A numerical analysis was conducted to investigate the soil stress concentration ratio, pile and soil settlements, pile axial force, negative skin friction (NSF) and the location of the neutral plane (NP) during embankment filling and consolidation of soft soils when the soft soils is treated by using reinforced concrete floating piles. The results indicate that the pile axial force as well as negative skin friction is clo

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26

Tsuha, Cristina de Hollanda Cavalcanti, João Manoel Sampaio Mathias dos Santos Filho, and Thiago da Costa Santos. "Helical piles in unsaturated structured soil: a case study." Canadian Geotechnical Journal 53, no. 1 (2016): 103–17. http://dx.doi.org/10.1139/cgj-2015-0017.

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The use of helical piles as tower foundations in Brazil has increased considerably during the last 5 years. A number of these piles are installed in unsaturated structured soils that cover a significant part of the Brazilian territory. However, the installation of helical piles in such soils produces a breakdown of the natural soil structure, which affects the pile performance for tension applications. This scenario motivates the present work, in which a comprehensive pile load-test program was carried out on helical piles composed of a single helix or multi-helices, installed in an unsaturate

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27

Stringer, M. E., and S. P. G. Madabhushi. "Re-mobilization of pile shaft friction after an earthquake." Canadian Geotechnical Journal 50, no. 9 (2013): 979–88. http://dx.doi.org/10.1139/cgj-2012-0261.

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During strong earthquakes, significant excess pore pressures can develop in saturated soils. After shaking ceases, the dissipation of these pressures can cause significant soil settlement, creating downward-acting frictional loads on piled foundations. Additionally, if the piles do not support the full axial load at the end of shaking, then the proportion of the superstructure’s vertical loading carried by the piles may change as a result of the soil settlement, further altering the axial load distribution on piles as the soil consolidates. In this paper, the effect of hydraulic conductivity a

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28

Lin, Chengyuan, Ruyi Wang, Mengshuang Huang, Lebin Huang, and Qinwen Tan. "Study on Disturbance Mechanism of Squeezed and Non-Squeezed Soil Piles on Soft Soil Foundation." Applied Sciences 13, no. 13 (2023): 7757. http://dx.doi.org/10.3390/app13137757.

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The construction process of pile foundations can significantly disrupt the soil. Therefore, it is necessary to limit the degree of soil disturbance caused by pile foundation construction to an acceptable level. This paper examines the disturbance effects of pile driving on soft soil foundations, specifically analyzing the squeezing effect of squeezed soil piles and the unloading effect of non-squeezed soil piles. To investigate these effects, two typical squeezed soil piles, a hydrostatic pile, and a bag grouting pile, as well as a typical non-squeezed soil pile (a bored pile) are selected. Sp

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29

Yirsaw, Getasew Mare, and Argaw Asha Ashango. "Numerical Study on Optimization of Piled Raft Foundation on Stratified Soil under Static Load." Advances in Civil Engineering 2023 (October 30, 2023): 1–11. http://dx.doi.org/10.1155/2023/4732353.

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Piled raft foundation (PRF) is a combination of pile and raft that provides adequate bearing capacity under the allowable settlement. This research aims to optimize the PRF design for a 48-story Commercial Bank headquarters building in Addis Ababa, Ethiopia, by conducting parametric study on various pile configuration using FLAC3D (Fast Lagrangian Analysis of Continua in three Dimensions) software. We analyzed 28 piled raft configurations and found that increasing the distance between piles increases the raft load sharing distribution by 11.5% while reducing settlement. Despite variations in p

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30

Busse, Matt D., Carol J. Shestak, and Ken R. Hubbert. "Soil heating during burning of forest slash piles and wood piles." International Journal of Wildland Fire 22, no. 6 (2013): 786. http://dx.doi.org/10.1071/wf12179.

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Pile burning of conifer slash is a common fuel reduction practice in forests of the western United States that has a direct, yet poorly quantified effect on soil heating. To address this knowledge gap, we measured the heat pulse beneath hand-built piles ranging widely in fuel composition and pile size in sandy-textured soils of the Lake Tahoe Basin. The soil heat pulse depended primarily on fuel composition, not on pile size. Burn piles dominated by large wood produced extreme temperatures in soil profile, with lethal heating lasting up to 3 days. In contrast, the heat pulse was moderate benea

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31

Huang, Yuan, Xin Jian Feng, Jian Lin Zhang, and Shu Zhi Lin. "Working Mechanism of Two-Phase Varying Stiffness Piled Raft Foundation." Applied Mechanics and Materials 590 (June 2014): 326–30. http://dx.doi.org/10.4028/www.scientific.net/amm.590.326.

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In this paper, the FEM software ABAQUS is used to analysis the pile-soil load share ratios, load share value of pile side friction and tip resistance for three bases, including natural raft foundation, conventional piled raft foundation and two-phase varying stiffness piled raft foundation. Furthermore, the deformation and settlement of deformation-coordinating device are studied as well. Based on the research of the working characteristic of piles and soil, it highlights the good working mechanism of two-phase varying stiffness piled raft foundation. The analysis results show that two-phase v

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32

Janda, Tomás, Renato P. Cunha, Pavel Kuklík, and Gérson M. Anjos. "Three Dimensional Finite Element Analysis and Back-analysis of CFA Standard Pile Groups and Piled Rafts Founded on Tropical Soil." Soils and Rocks 32, no. 1 (2009): 3–18. http://dx.doi.org/10.28927/sr.321003.

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This paper deals with Plaxis 3D finite element simulations of the mechanical response of deep foundations founded in a collapsible tropical soil. Main attention is initially paid to differences between single continuous flight auger (CFA) pile behavior and the behavior of CFA piles in standard groups. The numerically computed load-settlement curves are compared to field load test data obtained at the experimental research site of the University of Brasília (UnB), leading to conclusions about the appropriateness of adopting laboratory, in situ or back calculated parameters as input of numerical

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33

Lee, Su-Hyung, and Choong-Ki Chung. "An experimental study of the interaction of vertically loaded pile groups in sand." Canadian Geotechnical Journal 42, no. 5 (2005): 1485–93. http://dx.doi.org/10.1139/t05-068.

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The interactions among closely located piles and a cap in a pile group are complex. The current design practice for vertically loaded pile groups roughly estimates their overall behavior and generally yields conservative estimations of the group capacity. For a proper pile group design, factors such as the interaction among piles, the interaction between cap and piles, and the influence of pile installation method all need to be considered. This paper presents the results of the model test, which can be used to better understand the interactions of vertically loaded pile groups in granular soi

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34

Mahmood, Mahmood R., Nahla M. Salim, and Ammar A. Al-Gezzy. "Effect of Different Soil Saturation Conditions on The Ultimate Uplift Resistance of Helical Pile Model." E3S Web of Conferences 318 (2021): 01012. http://dx.doi.org/10.1051/e3sconf/202131801012.

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Helical piles have many properties over the other types of piles systems include high tensile capabilities, the possibility of fast installation, applying load immediately after installation, and suitability for most soil's condition. In addition to that, helical piles have relatively less noise during installation; they represent a cost-effective alternative to conventional pile types. The use of helical piles grows in the world in the last fifty years. Many studies concentrate on the performance of this type of piles in fully saturated and dry soils. The achievement of the helical pile in un

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35

Zhao, Min, and Wei Ping Cao. "An Analysis of Pile-Soil Interaction under Embankment Load." Applied Mechanics and Materials 488-489 (January 2014): 458–61. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.458.

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The complex interaction between the pile and surrounding soil significantly affects the behavior of the piled reinforced embankment. In this paper, a 3D numerical model of piled reinforced embankment was set up to explore the development of the settlement of the pile and the surrounding soft soils during the embankment filling as well as the subsequent consolidation of the soil. The evolution of the pile axial force, the skin friction and the neutral plane depth was also studied. The results show that the settlement of the pile and surrounding soil, the pile axial force, the skin friction alon

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36

Mohamad Ali, Anis Abdul Khuder, Jaffar Ahemd Kadim, and Ali Hashim Mohamad. "Design Charts for Axially Loaded Single Pile Action." Civil Engineering Journal 5, no. 4 (2019): 922–39. http://dx.doi.org/10.28991/cej-2019-03091300.

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The objective of this article is to generating the design charts deals with the axially ultimate capacity of single pile action by relating the soil and pile engineering properties with the pile capacity components. The soil and are connected together by the interface finite element along pile side an on its remote end. The analysis was carried out using ABAQUS software to find the nonlinear solution of the problem. Both pile and soil were modeled with three-dimensional brick elements. The software program is verified against field load-test measurements to verify its efficiency accuracy. The

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Xie, Yunfei, Shichun Chi, and Maohua Wang. "Influence of Variable Rigidity Design of Piled Raft Foundation on Seismic Performance of Buildings." Mathematical Problems in Engineering 2020 (March 14, 2020): 1–13. http://dx.doi.org/10.1155/2020/1780197.

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In order to reduce the costs and improve the overall performance of building systems, the static optimized design with variable rigidity of piled raft foundations has been widely used in recent years. Variable rigidity design of piled raft foundations that support midrise buildings in high-risk seismic zones can alter the dynamic characteristics of the soil-pile-structure system during an earthquake due to soil-pile-structure interaction. To investigate these aspects, a nuclear power plant sitting on multilayered soil is simulated numerically. The paper describes a numerical modeling technique

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Al-Damluji, Omar al-Farouk Salem, and Nadher Hassan Al-Baghdadi. "ANALYSIS OF PILED-RAFT FOUNDATION BY THE FINITE ELEMENT METHOD." Kufa Journal of Engineering 3, no. 2 (2014): 115–32. http://dx.doi.org/10.30572/2018/kje/321264.

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The piled raft is a geotechnical composite construction consisting of three elements: piles,raft and soil. It is suitable as a foundation for large buildings. This paper presents an analysis of piled raft foundation, included material nonlinearity and soil structure interaction. An efficient computer program in FORTRAN 9Ois developed for this analysis. A 20 node disoparametric brick element has been used to model pile, raft, soil and interface materials. Thin layer interface element has been used to model the contact zone between the pile and soil, and between raft and soil. The behavior of th

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Chen, Jun, Yong Hong Chang, and Yin Sheng Zou. "Nonlinear Analysis of Interaction of Superstructure-Pile-Raft-Soil System in Layered Soil — Part II: Characteristics of Reaction Force on Pile Head and Displacement of Raft." Key Engineering Materials 400-402 (October 2008): 659–66. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.659.

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Using the nonlinear analysis method and program of the interaction of superstructure- pile-raft-soil system in layered soil in the state of the previous literature, the reaction force on the pile head and the displacement characteristics of raft of the piled-raft foundation are analysed when the thickness of the raft, the spacing of the piles, the length and the diameter of the pile are changed. Some quantitative data and qualitative conclusions are obtained in this paper.

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Zhu, Rui, Feng Zhou, Zhihui Wan, et al. "Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study." Buildings 12, no. 11 (2022): 1903. http://dx.doi.org/10.3390/buildings12111903.

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Complicated soil conditions are direct difficulties for high-rise building projects. A new device called a deformation adjustor, which is used to optimize the stiffness distribution in the piled raft system, has achieved good results for this challenge. This paper presents a case study on the application of deformation adjustors to improve the performance of a piled raft foundation. This case study describes the preliminary design of pile-raft foundations with deformation adjustors, followed by numerical analysis. Based on the numerical study, the potential savings are demonstrated due to the

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Chen, S. L., C. Y. Song, and L. Z. Chen. "Two-pile interaction factor revisited." Canadian Geotechnical Journal 48, no. 5 (2011): 754–66. http://dx.doi.org/10.1139/t10-095.

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A rigorous analytical method is developed for calculating the interaction factor between two identical piles subjected to vertical loads. Following the scheme proposed by Muki and Sternberg, the problem is formulated by decomposing the pile soil system into an extended soil mass and two fictitious piles. With the consideration of the compatibility condition that the axial strain of the fictitious pile be equal to the corresponding strain average over the extended soil, a Fredholm integral equation of the second kind governing the unknown axial forces along fictitious piles is established and t

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Fellenius, Bengt H. "Observations and analysis of wide piled foundations." Canadian Geotechnical Journal 56, no. 3 (2019): 378–97. http://dx.doi.org/10.1139/cgj-2018-0031.

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Available case histories on observations on full-scale piled rafts show that the settlement response to applied load can be modeled as that for an Equivalent Pier due to compression of the piles and the soil matrix plus that of an Equivalent Raft for compression of soil layers below the pile toe level. Interior piles engage the soil from the pile toe level upward in contrast to a single pile, which engages it from the ground downward. Piles and soil, combined as a pier, have strain compatibility, which determines the distribution of load between the piles, the contact stress, and the load-tran

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Yushchube, S. V., and I. I. Podshivalov. "MODELING OF STRESS-STRAIN STATE OF HIGH-RISE BUILDING PILE RAFT FOUNDATION WITH INCOMPLETE PILE INSTALLATION." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 22, no. 2 (2020): 145–61. http://dx.doi.org/10.31675/1607-1859-2020-22-2-145-161.

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The object of the study is a pile-raft foundation or mat foundation 180 cm thick of a 25-storey building made of a reinforced concrete frame. When constructing a pile foundation, some of piles are not completely sank down to the reference points. In this connection, it is necessary to identify the reasons and load-bearing capacity of piles, given the soil compaction between piles and under their tips and the possibility of using such piles for further building construction.After studying the materials of soil investigation, the analysis of occurrence, composition, physical-mechanical propertie

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Lin, Xiangjun, Kui Zhang, Hao Chen, Zhenqin Zhang, and Hao Qi. "Field Study on One‐time Pile Construction Method of Helix Stiffened Cement Mixing Piles." ce/papers 8, no. 2 (2025): 1282–94. https://doi.org/10.1002/cepa.3215.

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AbstractThe Helix Stiffened Cement Mixing (HSCM) pile is a new type of composite pile. In order to investigate the effects of construction machinery and the one‐time pile construction process on the axial bearing performance of HSCM piles, field pile driving tests and axial loading tests were carried out. The pile diameter and bearing deformation characteristics of helical piles, hollow bar micropiles, and HSCM piles were compared and analyzed. The enhancement effect of the one‐time pile construction process on the frictional resistance of HSCM piles was discussed. The load transfer mechanism

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Tan, Feng Yi, and Xin Zhi Wang. "Numerical Analysis for Bearing Performance of Flexible Piles Composite Foundation Influenced by Modulus’ Changes." Advanced Materials Research 261-263 (May 2011): 1694–98. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.1694.

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The bearing performance of composite foundation improved by flexible piles was influenced by changes of cushion’s modulus, the modulus ratio between soil on bottom of pile and soil surrounded pile, which was analyzed by the finite element method. Results showed that: 1.For single pile, by increasing of cushion’s modulus, the bearing performance nearby the top of flexible pile increased apparently, and the common tendency of settlement of pile and soil surrounded piles was affected negatively. For multi-piles, the increasing of cushion’s modulus resulted in the increasing of bearing performance

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Doubrovsky, M. P., and V. O. Dubravina. "MODEL TESTING OF THE "PILE-SOIL" INTERACTION UNDER AXIAL FORCE." Bulletin of Odessa State Academy of Civil Engineering and Architecture, no. 83 (June 4, 2021): 102–11. http://dx.doi.org/10.31650/2415-377x-2021-83-102-111.

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Modern marine structures (berths, breakwaters, offshore platforms, etc.) often include steel tubular piles of essential length (80-100 m and more) that should provide high bearing capacity in case of external axial loads application. Interaction between elements of the system “piled structure – soil media” is not studied sufficiently yet. It relates also to the bearing capacity of the long steel tubular piles of large diameter. One of the interesting peculiarities of long tubular piles behavior is the formation of soil plug at the piles tip. There are a lot of suggestion and methods aimed to i

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Chiou, Jiunn-Shyang, and Jia-Qi You. "Theoretical solutions of laterally loaded fixed-head piles in elastoplastic soil considering pile-head flexural yielding." Canadian Geotechnical Journal 57, no. 5 (2020): 650–60. http://dx.doi.org/10.1139/cgj-2018-0593.

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Group piles with a cap under lateral loading behave like fixed-head piles because of the rotational restraint of the pile cap. They are susceptible to flexural yielding at the pile head due to high bending strains. In addition to soil nonlinearity, the pile-head flexural nonlinearity also significantly contributes to nonlinear responses of the piles, which is not covered in most existing analytical solutions. For a fixed-head pile buried in uniform elastoplastic soils, this study derives analytical solutions for the lateral responses to account for soil yielding, and flexural yielding and fail

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Романов, С. В., and М. М. Козаченко. "EFFICIENCY OF PILE DRIVE TECHNOLOGY IN DIFFERENT SOIL CONDITIONS." Building production, no. 72 (May 22, 2023): 55. http://dx.doi.org/10.36750/2524-2555.72.55-60.

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Based on the experience of SE NDIBV and TEHKOMP LLC in the development and application of pile and sheet piling technology in the construction of new and reconstruction of existing buildings, the article examines the effectiveness of pile piling technology in various soil conditions. The purpose of this article is to establish an effective field of application of the method of driving piles during installation or strengthening of building foundations.In order to achieve the specified goal, the following were processed and summarized the results of pile driving works performed in the past years

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Kahyaoglu, Mehmet Rifat, Okan Onal, Gökhan Imançlı, Gürkan Ozden, and Arif S. Kayalar. "SOIL ARCHING AND LOAD TRANSFER MECHANISM FOR SLOPE STABILIZED WITH PILES." Journal of Civil Engineering and Management 18, no. 5 (2012): 701–8. http://dx.doi.org/10.3846/13923730.2012.723353.

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In this study, the effects of pile spacing and pile head fixity on the moment and lateral soil pressure distribution along slope stabilizing piles are investigated. A slice from an infinitely long row of piles with fixed pile tip in an inclined sand bed was simulated with an experimental test setup. Surficial soil displacements were monitored and relative displacements between soil particles were determined by recording time-lapse images during the test in order to observe the soil arching mechanism on the soil surface. The load transfer process from moving soil to piles and behavior of soil a

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Chen, Heng, and Ke Sheng Ma. "The Mechanical Properties Comparative Analysis for Socked and Non-Socketed Composite Pile." Advanced Materials Research 1061-1062 (December 2014): 748–50. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.748.

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For socked and non-socketed piles in the different mechanical behavior under static and dynamic loads, the paper use ABAQUS to model, simulate the pile , the soil interlayer thickness between the bottom of the pile and bedrock are 2m, 4m under vertical load and Earthquake, cushion cap, pile and pile soil stress situation found non-socketed piles when the soil interlayer thickness within a certain range, the composite pile small subside under dynamic, static loads, the non-socketed piles can better take advantage of the pile soil has a good seismic performance in the earthquake.

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