An undrained expansion solution of cylindrical cavity in SANICLAY for K_(0)-consolidated clays

作     者：Haohua Chen Pin-Qiang Mo Haohua Chen;Pin-Qiang Mo

作者机构：China University of Mining and TechnologyXuzhou 221116China The University of ArizonaTucsonAZ 85716USA 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2022年第14卷第3期

页      面：922-935页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the funding support from National Natural Science Foundation of China (Grant Nos. 51908546 and 52178374) China Postdoctoral Science Foundation (Grant No. 2020T130699) 

主　　题：Undrained cavity expansion SANICLAY K_(0)-consolidation Anisotropy 

摘      要：This paper proposes a rigorous undrained solution for cylindrical cavity expansion problems in K_(0)-consolidated clays,adopting a simple non-associated and anisotropic model,*** cavity expansion theory is well extended to consider non-associativity,K_(0)-consolidation and stress-induced anisotropy with combined rotational and distortional hardening of yield surface and plastic potential in the multiaxial stress *** developed solution can be recovered for validation against the modified Cam-clay(MCC)solution by simply setting model constants,avoiding non-associativity and *** source code is provided to facilitate the use for *** investigating the effects of overconsolidation ratio on the cavity pressure curves,stress distributions,evolutions of anisotropic parameters and stress paths,the variations with three-dimensional(3D)evolutions of yield surface and plastic potential during undrained cavity expansion are shown for various K_(0)-consolidated clays.A parametric study on the model constants is presented to depict the influences on the stress distributions and paths,critical state surfaces and Lode’s angles at *** proposed solution also provides a general framework for formulating equations for undrained expansion of cylindrical cavities under an initial cross anisotropic condition using sophisticated anisotropic soil *** serves as a precise benchmark for extensions of analytical solutions,numerical simulations of cavity expansion,and backcalculations of geotechnical problems.