Rigorous numerical analysis of cylindrical cavity expansion in sands based on SMP criterion

被引：0
|
作者：
Hao, Dongxue [1 ]
Luan, Maotian [2 ,3 ]
Chen, Rong [2 ,3 ]
机构：
[1] Dalian Univ Technol, Sch Civil & Hydraul Engn Univ Dept, Dalian 116085, Peoples R China
[2] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116085, Peoples R China
[3] Dalian Univ Technol, Inst Geotech Engn, Sch Civil & Hydraul Engn, Dalian 116085, Peoples R China
来源：
GEOTECHNICAL ENGINEERING FOR DISASTER MITIGATION AND REHABILITATION | 2008年
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1007/978-3-540-79846-0_139
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Considering the effect of intermediate principal stress on material strength, spatial mobilization plane (SMP) theory is applied. Rowe flow rule and stress-dilatancy relationship simplified by Bolton combing the similar numerical process as described by Salgado et al. (2001) are used to analyze the cylindrical cavity expansion. By a series of comparison, the effects of intermediate principal stress, soil initial state and critical friction angle on limit pressure, plastic radius, and void ratio are examined. The results indicate that the intermediate principal stress will play an important role in the cavity expansion behavior including limit cavity pressure, plastic radius and dilatancy surrounding the cavity; the solution based on Mohr-Coulomb criterion is often conservative.
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页码：1055 / +
页数：2
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