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요약정보
均质度对圆形硐室破坏形式影响的模拟研究 / Numerical Investigation of Influence of Homogeneous Degree on Failure Pattern of Round Tunnel
Resource Type
Academic Journal
Authors
张连生
;
郭伟耀
;
杨坤
;
ZHANG Lian-Sheng
;
GUO Wei-Yao
;
YANG Kun
Source
煤炭技术 / Coal Technology
. 37(2):60-63
Subject
颗粒流
破坏形式
拉断裂
V形坑破裂
Language
Chinese
ISSN
1008-8725
Online Access
Find it @ DONGA
초록
为了研究均质与非均质度对圆形硐室3种经典破坏形式的影响,利用颗粒流软件PFC加对均质圆形硐室和服从Weibull分布的非均质圆形硐室进行了双轴压缩模拟试验.研究表明:采用颗粒流方法模拟硐室的破坏演化过程是具有优势的;弹性模量均质度mE对圆形硐室的3种破坏形式影响程度较弱,但对硐室的体积应变随着mE的增大而减小,表明mE对硐室变形有着重要影响;随黏结强度均质度mσ的增大,裂纹及裂隙的数量和分布离散性均减小,表明mσ对硐室破坏有着重要影响.
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