摘要
针对露天矿边坡变形破坏严重影响露天矿安全生产的问题,采用数值模拟的方法,应用FLAC3D软件对宝日希勒露天矿南帮52剖面边坡的应力应变和位移变化进行了数值模拟分析,结果表明:南帮边坡失稳时,边坡变形失稳虽以剪切作用为主,拉伸破坏也相伴发生,坡顶起主要作用.坡体在自身重力与地应力影响下,内部发生以剪切为主的破坏,边坡整体的潜在破坏面形成,边坡坡脚处发生剪切破坏,最终形成"切层—顺层"式滑动.
Aiming at the problem that the open-pit mine production safety seriously affected by the open-pit mine slope deformation,this paper adopted the numerical simulation method, and simulated the slope stress strain and the displacement of south side of 52 cross sectional area in Baorixile open-pit mine by using the FLAC3 Dsoftware.The results show that the southern slope instability is dominated by the shear slope deformation,and the tensile failure also occurred together. The top of slop plays a major role. Effects of slope under its own gravity and crustal stress, shear failure occurs inside the main potential failure surface of slope, and the shear formation failure appears at the toe of the slope. Eventually a ＂cut layer sliding bedding＂ is formed.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2016年第7期679-682,共4页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然科学基金项目(51104084
51474119)
国家自然科学基金重点项目(U1361211)
高等学校博士学科点专项基金项目(20122121110003)
