采矿与安全工程学报2017，Vol.34Issue(6)：1081-1087,7.DOI:10.13545/j.cnki.jmse.2017.06.007
含弱面岩石滑移破坏及锚固控制试验研究
Study on slip failure of rock with weak plane and anchorage control mechanism
摘要
Abstract
In order to reveal the bolt support mechanism of broken surrounding rock, uniaxial com-pression tests of joint rock specimens with different interfacial angles are experimented. The failure modes and strength characteristics of the anchored joint rocks and the no-anchored are analyzed. The evolution law of deformation field and the anchorage control mechanism are also researched by using the DSCM method. The results show: 1) The general failure mode of joint rock is the slip of weak plane for the anchorage rock which could present the compress-shear failure and that could turn into disconti-nue dislocation; 2) The anchorage increases the peak strength, elastic modulus and ultimate strain of joint rock and the peak strength decreases with the increase of interfacial angle, but the elastic modulus shows a rising trend; 3) According to the deformation evolution laws of joint rock, it has three stages:failure in the terminal part of weak plane, extension of slip plane and slip deformation. Meanwhile, the bolt support mechanism has three corresponding parts: deformation coordination, toughness strength and crack control and slip prevention.关键词
节理岩石/滑移破坏/变形场演化/锚固机制Key words
joint rock/slip failure/evolution of deformation field/anchorage mechanism分类
建筑与水利引用本文复制引用
赵同彬,程康康,魏平,傅知勇,李刚..含弱面岩石滑移破坏及锚固控制试验研究[J].采矿与安全工程学报,2017,34(6):1081-1087,7.基金项目
国家自然科学基金项目(51474136) （51474136）
煤矿安全高效开采省部共建教育部重点实验室开放研究基金项目(JYBSYS2014202) （JYBSYS2014202）
