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Bearing and uplift capacities of under-reamed piles in soft clay underlaid by stiff clay using lower-bound

Mantu MAJUMDER, Debarghya CHAKRABORTY

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 537-551 doi: 10.1007/s11709-021-0708-x

Abstract: In the present study, the effectiveness of under-reamed piles in soft clay underlaid by stiff clay isThe bearing and uplift capacities of under-reamed piles are estimated through non-dimensional factorsThe variation of radial stress along the pile–soil interface, distribution of axial force in the under-reamedpiles, and state of plastic shear failure in the soil are also studied under axial compression and tensionof this study are expected to be useful for the estimation of the bearing and uplift capacities of under-reamed

Keywords： bearing capacity     uplift capacity     under-reamed pile     clay     limit analysis    

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Fictitious soil pile model for dynamic analysis of pipe piles under high-strain conditions

Frontiers of Structural and Civil Engineering   Pages 915-934 doi: 10.1007/s11709-023-0907-8

Abstract: A fictitious soil pile (FSP) model is developed to simulate the behavior of pipe piles with soil plugsThe developed model simulates the base soil with a fictitious hollow pile fully filled with a soil plugextending at a cone angle from the pile toe to the bedrock.The friction on the outside and inside of the pile walls is distinguished using different shaft modelsThe motions of the pile−soil system are solved by discretizing them into spring-mass model based on the

Keywords： fictitious soil pile     soil plug     pipe piles     high-strain dynamic analysis     one-dimensional wave theory     pile dynamics    

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ANN-based empirical modelling of pile behaviour under static compressive loading

Abdussamad ISMAIL

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 594-608 doi: 10.1007/s11709-017-0446-2

Abstract: Other parameters used as inputs include particle grading, pile geometry, method of installation as wellas the elastic modulus of the pile material.The model is trained using full-scale pile loading tests data retrieved from FHWA deep foundations databaseFrom the results obtained, it is observed that the proposed model gives a better simulation of pile load-deformation

Keywords： piles in compression     load-deformation behaviour     product-unit neural network    

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Displacement and force analyses of piles in the pile-caisson composite structure under eccentric inclined

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0957-y

Abstract: A novel anchorage for long-span suspension bridges, called pile-caisson composite structures, was recentlyThis study aims to investigate the displacement and force behavior of piles in a pile-caisson compositestructure under eccentric inclined loading considering different stratum features.composite structure, and distribution of soil layers on the performance of the pile-caisson compositethe displacements and improving the stability of the pile-caisson composite structure.

Keywords： composite structure     piles     foundation     suspension bridge     1g model test     finite-element analysis    

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Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 224-237 doi: 10.1007/s11709-022-0914-1

Abstract: The horizontal bearing behavior of a single batter pile (SBP) is vital to its application in practicalSubsequently, the differences in the responses of the SBPs under horizontal loads in various directionsSBPs in medium-dense and dense sand while considering the effects of the skew angle, batter angle, and pile

Keywords： single batter pile     skew horizontal load     model test     finite-element analysis     empirical design method    

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Finite element prediction on the response of non-uniformly arranged pile groups considering progressivefailure of pile-soil system

Qian-Qing ZHANG, Shan-Wei LIU, Ruo-Feng FENG, Jian-Gu QIAN, Chun-Yu CUI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 961-982 doi: 10.1007/s11709-020-0632-5

Abstract: A uniform arrangement of individual piles is commonly adopted in the conventional pile group foundationLarge differential settlement of pile groups will decrease the use-safety requirements of building, evenThis paper presents a finite element analysis on the response of pile groups with different layouts ofindividual piles in pile groups.Furthermore, the response of non-uniformly arranged pile groups, e.g., individual piles with variable

Keywords： numerical simulation     non-uniformly arranged pile groups     differential settlement     pile-soil interaction    

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Study on load bearing characteristic of cast in situ DX group pile with numerical analysis

Zhang Qinglin,Chen Lihong

Strategic Study of CAE 2012, Volume 14, Issue 1,   Pages 51-59

Abstract:

This paper analyzes 4 types of group-pile which contains 4 piles withThe main conclusions are: group pile effect of DX pile increases sharply when pile spacing decreases；the bearing capacity of 3D spacing group-pile is 1.32 times larger than that of 1.5D spacing group-pile；effect coefficient of group-pile increases from 0.59 to 0.78 when spacing increases from 1.5D to 3D；when the spacing of pile increases.

Keywords： DX pile     group-pile     settlement     numerical analysis    

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Optimum lateral extent of soil domain for dynamic SSI analysis of RC framed buildings on pile foundations

Nishant SHARMA, Kaustubh DASGUPTA, Arindam DEY

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 62-81 doi: 10.1007/s11709-019-0570-2

Abstract: SSI model for a 12 storied building frame, supported on pile foundation-soil system, is developed inThree different structure-foundation configurations are analyzed under different ground motion characteristics

Keywords： soil structure interaction     optimum lateral extent of soil domain length     multi-storyed framed building     pile    

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Influence of axial load on the lateral pile groups response in cohesionless and cohesive soil

Jasim M. ABBASA,Zamri CHIK,Mohd Raihan TAHA

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 176-193 doi: 10.1007/s11709-015-0289-7

Abstract: The lateral response of single and group of piles under simultaneous vertical and lateral loads has beenThe response in this assessment considered lateral pile displacement and lateral soil resistance andThe effect of load combination on the lateral pile group response was performed on three pile group configurations(i.e., 2×1, 2×2 and 3×2) with four pile spacings (i.e., = 2 , 4 , 6 and 8 ).group relative to that for the single pile in case of pure lateral load.

Keywords： piles     pile group     spacing     configuration     combined load    

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Case study of DX single pile settlement

Tang Songtao,Yuan Xiyu,Chen Lihong

Strategic Study of CAE 2012, Volume 14, Issue 1,   Pages 41-45

Abstract:

DX pile which is typical varied cross-section pile has a different loadtransfer mechanism compared to straight pile.The bearing capacity of the pile is increased, while the settlement is significantly reduced at the sameThis paper compares the settlement characteristics of DX pile and straight pile on the basis of lotsof projects to verify the DX pile settlement formula and the reliability of correction factor.

Keywords： DX pile     straight pile     settlement     correction coefficient    

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Application of fuzzy analytic hierarchy process model on determination of optimized pile-type

Lei MA, Shuilong SHEN, Jinhui ZHANG, Yang HUANG, Feng SHI

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 252-257 doi: 10.1007/s11709-010-0017-2

Abstract: Pile-type selection is a very important stage of foundation design, and there are many field factorsinfluencing the decision of pile-type selection.In this study, AHP combined with fuzzy synthetic evaluation method is employed to select the type of pileThe results show that fuzzy AHP approach is an easy and efficient way for pile-type selection.

Keywords： pile type     fuzzy synthetic evaluation     analytic hierarchy process (AHP)     optimal selection    

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Comparison of shallow tunneling method with pile and rib method for construction of subway station in

Sina AMIRI; Ali Naghi DEHGHAN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 704-717 doi: 10.1007/s11709-021-0746-4

Abstract: the present study, a comparison between the new shallow tunneling method (STM) and the traditional pile

Keywords： shallow tunneling method     pile and rib method     ground surface settlement     subway station construction    

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Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 228-233 doi: 10.1007/s11709-009-0019-0

Abstract: The application of pile-end post-grouting piles for super-large bridge pile foundations in some importantThe maximum pile diameter varies from 2.5 m to 3 m, and the maximum length is 125 m; the bearing capacityIn addition, the calculation formula for the post-grouting piles under specified grouting condition was

Keywords： self-balanced testing technique     pile-end post-grouting     bearing capacity     grouting technology    

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Detection of damage locations and damage steps in pile foundations using acoustic emissions with deep

Alipujiang JIERULA, Tae-Min OH, Shuhong WANG, Joon-Hyun LEE, Hyunwoo KIM, Jong-Won LEE

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 318-332 doi: 10.1007/s11709-021-0715-y

Abstract: The aim of this study is to propose a new detection method for determining the damage locations in pileback propagation neural network deep learning model with an acoustic emission data set acquired from pileIn particular, the damage location is identified using two parameters: the pile location ( ) and thedistance from the pile cap ( ).Finally, a new damage detection and evaluation method for pile foundations is proposed.

Keywords： pile foundations     damage location     acoustic emission     deep learning     damage step    

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New pile foundation technology of 21 Century: DX pile

Wang Mengshu,He Dexin,Tang Songtao

Strategic Study of CAE 2012, Volume 14, Issue 1,   Pages 4-12

Abstract:

As a kind of old construction form, pile foundation still plays a tremendousThe fast developing and innovation of technology promote new types of pile constantly emerging, whichDX pile is one of those piles and has been widely used.characters, advantages, research progress both at home and abroad, and engineering applications of DX pile

Keywords： DX pile     bearing mechanism     bearing capacity     settlement    

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Title Author Date Type Operation

Bearing and uplift capacities of under-reamed piles in soft clay underlaid by stiff clay using lower-bound

Mantu MAJUMDER, Debarghya CHAKRABORTY

Journal Article

Fictitious soil pile model for dynamic analysis of pipe piles under high-strain conditions

Journal Article

ANN-based empirical modelling of pile behaviour under static compressive loading

Abdussamad ISMAIL

Journal Article

Displacement and force analyses of piles in the pile-caisson composite structure under eccentric inclined

Journal Article

Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Journal Article

Finite element prediction on the response of non-uniformly arranged pile groups considering progressivefailure of pile-soil system

Qian-Qing ZHANG, Shan-Wei LIU, Ruo-Feng FENG, Jian-Gu QIAN, Chun-Yu CUI

Journal Article

Study on load bearing characteristic of cast in situ DX group pile with numerical analysis

Zhang Qinglin,Chen Lihong

Journal Article

Optimum lateral extent of soil domain for dynamic SSI analysis of RC framed buildings on pile foundations

Nishant SHARMA, Kaustubh DASGUPTA, Arindam DEY

Journal Article

Influence of axial load on the lateral pile groups response in cohesionless and cohesive soil

Jasim M. ABBASA,Zamri CHIK,Mohd Raihan TAHA

Journal Article

Case study of DX single pile settlement

Tang Songtao,Yuan Xiyu,Chen Lihong

Journal Article

Application of fuzzy analytic hierarchy process model on determination of optimized pile-type

Lei MA, Shuilong SHEN, Jinhui ZHANG, Yang HUANG, Feng SHI

Journal Article

Comparison of shallow tunneling method with pile and rib method for construction of subway station in

Sina AMIRI; Ali Naghi DEHGHAN

Journal Article

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Journal Article

Detection of damage locations and damage steps in pile foundations using acoustic emissions with deep

Alipujiang JIERULA, Tae-Min OH, Shuhong WANG, Joon-Hyun LEE, Hyunwoo KIM, Jong-Won LEE

Journal Article

New pile foundation technology of 21 Century: DX pile

Wang Mengshu,He Dexin,Tang Songtao

Journal Article