深矿坑岩质边坡开挖前后位移响应与演化规律的模拟分析  

Simulation analysis of displacement response and evolution rule of deep mine rock slope before and after the excavation

作　　者：马孝云 贺可强 张拥军[2] 李增涛 

机构地区：[1]山东省地质环境与效应工程技术研究中心,山东青岛266033 [2]青岛理工大学土木工程学院,山东青岛266033 [3]海工英派尔工程有限公司,山东青岛266100

出　　处：《工程建设》2015年第4期1-5,共5页Engineering Construction

基　　金：国家自然科学基金(项目编号:41372297);教育部博士学科点专项科研基金项目(项目编号:20113721110002)

摘　　要：为了全面、准确地研究开挖前后岩质边坡的水平位移值和稳定性演化规律,以金川集团石英石露天矿采场边坡实际工程为例,运用ABAQUS有限元分析软件,建立露天矿岩质边坡有限元分析模型,选取边坡东部5C-1C剖面Ⅱ作为模拟对象,通过分析模拟结果来研究此类边坡的稳定性演化规律,得知在1768平台开挖前后水平位移场和塑性区的变化规律,结合实际工程表明其可以作为边坡稳定状态的预测判据。In displacement value order to comprehensively and accurately research the horizontal and the stability evolution rule of rock slope before and after the excavation, with the practical project of Jinchuan Group quartz open-pit stope slope as an example, the finite element analysis model of the open-pit rock slope was established by using the ABAQUS finite element analysis software. The east 5C-1 C section Ⅱ of this slope was selected as the simulation object, the stability evolution rules of these slopes were studied through analyzing the simulation results, and the change rules of the horizontal displacement field and plastic zone before and after the 1768 platform excavation were obtained, which can be used as the criterion for prediction of the slope stability in combination with the actual project.

关 键 词：岩质边坡 开挖卸荷 强度折减法 稳定性演化规律 

分 类 号：TD804[矿业工程—矿山开采]