摘要
在调查抚顺西露天矿南帮边坡变形失稳形成的地质环境基础上,分析了变形体发育特征、影响因素以及稳定情况。研究表明该变形体是矿山开采形成的顺层岩质边坡易滑体,受坡体结构、坑体构造、降雨、深层软弱带及底部开挖影响渐次形成的,属特大危岩体。通过数值计算并综合监控调查结果,认为现渐趋稳定的变形体在降雨等工况下稳定性骤降,仍具有较高成灾可能性,需开展监测工作,并提出了边坡稳定控制技术措施建议。
Based on the geological environment of deformation and instability in south slope of Fushun West Open-pit Mine, we analyze the deformation characteristics, influencing factors and stability of defomation body. The results show that the deformation body is bedding rock slope landslide formed by mining, which is affected by slope structure, deep pit structure, rainfall, weak zone and the bottom excavation and belongs to extremely big and dangerous rock body. Through numerical calculation and comprehensive monitoring results, we think that the stability of asymptotically stable deformation body is decreased in the rainfall condition and has a higher possibility of disaster, which needs to carry out monitoring work. We present technical measures for slope stability control.
出处
《煤矿安全》
北大核心
2017年第7期242-245,共4页
Safety in Coal Mines
关键词
露天矿
变形体
边坡稳定性
弱层
变形机制
open-pit mine
deformation body
slope stability
weak layer
deformation mechanism
