1110_204工作面开采后地表变形预计分析  

Analysis on Surface Deformation after Mining in 1110204 Working Face

作　　者：李小龙 

机构地区：[1]神华宁夏煤业集团梅花井煤矿,宁夏银川750409

出　　处：《煤炭与化工》2015年第11期23-26,共4页Coal and Chemical Industry

基　　金：国家自然科学基金(51174109)

摘　　要：工作面开采后由于上覆岩层的移动,会对地表变形产生影响,为深入研究1110204工作面开采后的地表变形情况,采用概率积分法对地表变形进行预计,根据地质采矿条件确定地表变形预计所需要的各个预计参数,将预计结果进行可视化,分析地表的下沉值、倾斜值、曲率值、水平移动值和水平变形值。预计结果显示,最大下沉值为2 500 mm、倾斜值为16 mm/m、曲率值为0.16×10-3/m、水平移动值为850 mm和水平变形值为8 mm/m。Due to the movement of overlying strata after working face mining, which would cause influence on the deformation of the surface, for further study 1110204 working face mining surface deformation, the probability integral method of ground deformation was expected. According to the geological and mining conditions, the surface deformationwas expected to need each estimated parameter, expected results were visualized, surface sink value, value tilt, curvature value,value of horizontal movement and deformation value were analyzed. The results showed that the maximum subsidence value was 2 500 mm, the slope value was 16 mm/m, the curvature value was 0.16 × 10- 3/m, the horizontal moving value was 850 mm and the horizontal deformation value was 8 mm/m.

关 键 词：概率积分法 地表变形预计 倾斜值 曲率值 

分 类 号：TD325[矿业工程—矿井建设]