Pseudostatic Approach to Analyze Combined Pile-Raft Foundation

被引：21
|
作者：
Roy, Jashod [1 ]
Kumar, Ashutosh [2 ,3 ]
Choudhury, Deepankar [4 ,5 ]
机构：
[1] Brigham Young Univ, Dept Civil & Environm Engn, Provo, UT 84604 USA
[2] Indian Inst Technol Mandi, Sch Engn, Mandi 175005, Himachal Prades, India
[3] Univ Durham, Dept Engn, Durham DH1 3LE, England
[4] Indian Inst Technol, Indian Inst Technol Bombay, Dept Civil Engn, Mumbai 400076, Maharashtra, India
[5] Acad Sci & Innovat Res AcSIR, New Delhi 247667, India
来源：
INTERNATIONAL JOURNAL OF GEOMECHANICS | 2020年 / 20卷 / 10期
关键词：
Piling; Raft; Displacement; Foundation; Earthquake; APPROXIMATE NUMERICAL-ANALYSIS; SEISMIC ANALYSIS; LOAD TESTS; DESIGN; MODEL; CENTRIFUGE; MECHANISM; MOMENT;
D O I：
10.1061/(ASCE)GM.1943-5622.0001806
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A new simplified approach based on the pseudostatic method of analysis is proposed to investigate the response of a combined pile-raft foundation (CPRF) and a group pile considering the complex interaction. In this method, the raft is considered as a plate supported by group of piles and soil, where piles are modeled as Euler beam elements resting on elastic Winkler foundation and the raft is divided into square grids attached with horizontal springs. The reliability of the proposed method is verified by laboratory testing results and those of Plaxis3D simulations for a 4-piled raft system. Good agreement between the laboratory results, numerical simulations, and the proposed method is demonstrated, showing the potential applicability of the new simplified method.
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页数：9
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