A simple critical state interface model and its application in prediction of shaft resistance of non-displacement piles in sand

被引：33
|
作者：
Lashkari, Ali [1 ]
机构：
[1] Shiraz Univ Technol, Dept Civil & Environm Engn, Shiraz, Iran
来源：
COMPUTERS AND GEOTECHNICS | 2017年 / 88卷
关键词：
Interface; Constitutive model; Shear strain; Void ratio; Critical state; Normal stiffness; SOIL-STRUCTURE INTERFACE; CONSTITUTIVE MODEL; BEHAVIOR; STEEL; SHEAR; FRICTION;
D O I：
10.1016/j.compgeo.2017.03.008
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A simple semi-hyperbolic state-dependent constitutive model for sand-structure interfaces is proposed. The model formulation is consistent with critical state soil mechanics since void ratio evolves continuously with shear strain from initial state towards asymptotic critical state at extremely large shear strains. The model takes into account influence of normal stiffness on volume change and stress path. The proposed interface model is implemented in a pile segment analysis scheme for simulation of shaft resistance mobilization in non-displacement piles. Results reveal that the proposed pile segment analysis can well predict shaft resistance of model piles embedded in different sands. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：95 / 110
页数：16
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    Lashkari, Ali
    [J]. COMPUTERS AND GEOTECHNICS, 2018, 95 : 40 - 43
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