山东煤炭科技2026，Vol.44Issue(4)：174-179,6.DOI:10.3969/j.issn.1005-2801.2026.04.030
开采扰动下陡倾顺层边坡"滑移-压碎-剪断"破坏机理研究
Research on Failure Mechanism of"Sliding-Crushing-Shearing"in Steeply Inclined Bedding Slopes under Mining Disturbance
摘要
Abstract
In order to solve the problem of mining instability of steeply inclined bedding slopes(with strata inclination>60°)in Beskuduk open-pit mine in Xinjiang,a combination method of elastic mechanics analysis,Midas GTS NX numerical simulation,and on-site monitoring is adopted to study the progressive failure process and its disaster-causing mechanism of"sliding-crushing-shearing"under mining disturbance.The results show that the overall slope failure undergoes three continuous evolution stages:initial sliding,crushing at the slope toe,and shearing at the trailing edge;A dual criterion early warning model established based on energy release rate and stress intensity factor demonstrates relatively good identification effect for the critical mining depth in the case of local collapse on the east side of PM-4 profile,and its prediction results are closer to the on-site actual situations than the traditional strength reduction method;The crushing zone at the slope toe is a key control part that connects stress migration,strength weakening,and slip plane penetration.The research results can provide reference for stability analysis and disaster early warning of similar steeply inclined bedding slopes.关键词
陡倾顺层边坡/开采扰动/压碎带/动态连锁破坏Key words
steeply inclined bedding slope/mining disturbance/crushing zone/dynamic chain failure分类
矿业与冶金引用本文复制引用
吴晨,王振伟,代立强..开采扰动下陡倾顺层边坡"滑移-压碎-剪断"破坏机理研究[J].山东煤炭科技,2026,44(4):174-179,6.基金项目
国家重点研发计划资助项目(2024YFC3013904) （2024YFC3013904）
