Lateral response of single piles in cement-improved soil: numerical and theoretical investigation

被引：53
|
作者：
Wang, Anhui [1 ,2 ]
Zhang, Dingwen [1 ,2 ]
Deng, Yaguang [3 ]
机构：
[1] Southeast Univ, Sch Transportat, Nanjing 210096, Jiangsu, Peoples R China
[2] Jiangsu Key Lab Urban Underground Engn & Environm, Nanjing 210096, Jiangsu, Peoples R China
[3] Conservancy & Elect Power Construct Engn Corp, Nantong 226400, Peoples R China
来源：
COMPUTERS AND GEOTECHNICS | 2018年 / 102卷
基金：
国家重点研发计划;
关键词：
Precast concrete pile in cement-improved soil; Lateral response; Numerical simulation; Tension-induced damage; p-y curves; ROOTED NODULAR PILE; BEARING CAPACITY; CIRCULAR FOUNDATIONS; FAILURE BEHAVIOR; MIXING PILES; COLUMN; PRESSURE; MODEL; FIELD; RESISTANCE;
D O I：
10.1016/j.compgeo.2018.06.014
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This study aims to investigate the lateral response of a single precast concrete pile reinforced with cement-improved soil through a series of theoretical studies and 3D finite element analyses using a concrete damage-plasticity model. Application of cement-improved soil around a pile can obviously reduce both lateral deflections and bending moments in the pile and can significantly increase the lateral capacity of the pile. Increasing soil resistance to limit pile deflection and preventing or delaying the development of tension-induced damage in the pile are reinforcement mechanisms. A modified p-y curve model is proposed to predict the lateral response of single piles in cement-improved soil.
引用
收藏
页码：164 / 178
页数：15
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