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Physical Simulation on Failure around a Circular Cavern in Hard and Brittle Rock under High and Increasing Natural Stress Conditions

文献类型：期刊论文

作者Bai, Shiwei1; Chen, Luwang2; Yin, Xiaoxi2
刊名JOURNAL OF ENGINEERING MECHANICS
出版日期2014
卷号140期号:2页码:332-344
关键词Rock mechanic Model tests Experimentation Material failures Parameters Simulation Rock mechanic Model test Physical model material Numerical experiment Failure Yielding parameters
ISSN号0733-9399
DOI10.1061/(ASCE)EM.1943-7889.0000657
英文摘要To analyze the dynamic failure process around a circular cavern in hard and brittle rock under high and increasing natural stress conditions, an 800x800x800-mm physical model with a phi 160-mm circular cavern in the center was produced by using the self-developed physical model material and tested in the self-developed model test machine under plane-strain conditions. From the physical simulation, when Px=Pz=600kN (sigma X=sigma Z=3.75MPa), shallow skinlike flakes appeared on the cavern wall, and large-scale abrupt failure occurred during a limited loading-zone for a short time until Px=Pz=630kN (sigma X=sigma Z3.94MPa). Then, a relatively steady state was followed by a long period with the load increasing. To understand the mechanical behavior around the circular cavern better, in the light of the physical simulation, a numerical simulation was also applied for comparative analysis. Both the numerical simulation and the physical simulation were consistent with each other, and they presented the same failure mechanism. (C) 2014 American Society of Civil Engineers.
WOS研究方向Engineering
语种英语
WOS记录号WOS:000330837700009
出版者ASCE-AMER SOC CIVIL ENGINEERS
源URL[http://119.78.100.198/handle/2S6PX9GI/3563]  
专题岩土力学所知识全产出_期刊论文
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech
2.Hefei Univ Technol, Sch Resources & Environm Engn ;
推荐引用方式
GB/T 7714		 Bai, Shiwei,Chen, Luwang,Yin, Xiaoxi. Physical Simulation on Failure around a Circular Cavern in Hard and Brittle Rock under High and Increasing Natural Stress Conditions[J]. JOURNAL OF ENGINEERING MECHANICS,2014,140(2):332-344.
APA Bai, Shiwei,Chen, Luwang,&Yin, Xiaoxi.(2014).Physical Simulation on Failure around a Circular Cavern in Hard and Brittle Rock under High and Increasing Natural Stress Conditions.JOURNAL OF ENGINEERING MECHANICS,140(2),332-344.
MLA Bai, Shiwei,et al."Physical Simulation on Failure around a Circular Cavern in Hard and Brittle Rock under High and Increasing Natural Stress Conditions".JOURNAL OF ENGINEERING MECHANICS 140.2(2014):332-344.

入库方式： OAI收割

来源：武汉岩土力学研究所

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