自重及地震工况条件下露天采石场边坡稳定性分析  

Stability Analysis of Open-pit Quarry Slope Under Self-weight and Earthquake Conditions

作　　者：陈贵 Chen Gui(Xinjiang Zhongyanhengtai Blasting Engineering Co.,Ltd,Urumqi 830000,China)

机构地区：[1]新疆中岩恒泰爆破工程有限公司,乌鲁木齐830000

出　　处：《黑龙江科学》2023年第12期48-50,共3页Heilongjiang Science

摘　　要：对新疆某灰岩采石场进行地质调查,采用极射赤平投影法,确定该矿山的地质构造、岩相构造、构造面特性、变形边界及潜在的变形不稳定机制,依据边坡构造面与岩体参数,对采场边坡进行安全状态定性分析及建模计算定量评价。结果显示,该矿山边坡均处于稳定状态,但局部坡面在开采过程中可能受采动或爆破等综合作用的影响产生局部垮塌,建议生产过程中加强对各坡面的监测,及时处理,避免造成人身财产损失。Through the geological survey of a limestone quarry in Xinjiang,the polar stereographic projection method is used to determine the geological structure,lithofacies structure,structural plane characteristics,deformation boundary and potential deformation instability mechanism of the mine.The qualitative analysis and quantitative evaluation of modeling calculation of the safety state of the slope are carried out based on the structural plane and rock mass parameters of the slope.The results show that the slope of the mine is in a stable state,but the partial slope may be affected by the comprehensive action of mining or blasting in the mining process to produce local collapse.It is suggested to strengthen the monitoring of each slope in the production process and timely treatment to avoid personal and property losses.

关 键 词：采石场边坡 安全系数 极射赤平投影 极限平衡法 

分 类 号：TD804[矿业工程—矿山开采]