采矿引起的倾倒滑移变形机理及其控制  

DEFORMATION MECHANISM AND CONTROL OF MINING-INDUCED TOPPLING-DISPLACEMENT

作　　者：纪玉石[1] 申力[2] 刘晶辉[2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]煤炭科学研究总院抚顺分院,辽宁抚顺113001

出　　处：《岩石力学与工程学报》2005年第19期3594-3598,共5页Chinese Journal of Rock Mechanics and Engineering

摘　　要：倾倒变形边坡一般具有反倾边坡结构,其变形的过程和机理比较复杂,涉及的变形岩体范围较大、危害严重。通过岩体位移监测资料的跟踪分析、并对抚顺西露天矿典型高边坡倾倒滑移变形体进行了数值模拟试验,分析探讨了采矿活动作用下的倾倒滑移体变形机理及其对地面变形的影响。分析结果表明,采矿引起的倾倒滑移变形问题是在特定的地质构造和采矿工程条件下产生的,边坡体反倾段岩层变形在整个边坡的变形中起主导作用,地表地基变形主要由断层南侧倾倒滑移体的变形所致,并针对实际问题提出了变形整治方案。Slopes of toppling-displacement generally have the structures of reversed dip; and the deformation process and deformation mechanism are considerably complicated. The deformation range of rock mass involved is comparatively large, which will produce serious harm. Through tracing analysis of monitoring data for the rock mass displacements, numerical simulation tests for typical high slope of toppling-displacement are performed in Fushun West Opencast Coal Mine. The deformation mechanism of toppling-sliding mass and its effect on deformation of ground are analyzed and investigated under the effects of mining activities. Analytical results indicate that mining under the particular geological structure and mining engineering condition causes the problems of toppling deformation. Reversed section of slope deformation plays a key role in the deformation for the whole slope; and the surface foundation deformation is mainly caused by toppling-sliding mass, which is located in the south of faults; and renovation plan for practical problem is proposed.

关 键 词：采矿工程 采矿活动 倾倒滑移体 变形机理 

分 类 号：TD821[矿业工程—煤矿开采]