作　　者： ; ; ;

机构地区： 太原理工大学矿业工程学院采矿工艺研究所

出　　处： 《煤炭技术》 2015年第11期7-9,共3页

摘　　要： 通过理论分析得到了条带开采的合理采留宽度,应用数值模拟软件分析得到:煤柱含水率较高时,地表下沉盆地的范围和移动盆地边界角明显增大,煤柱应力集中程度较弱;煤柱不同的含水率对原岩应力场影响的范围大致相同,影响高度都大致为150 m,而且开采后地表边界和中心的高差与含水率呈指数关系。 Obtained the reasonable mining width of the strip mining and the numerical simulation software is used to obtain the result: when the water content of the coal pillar is high, the range of the surface subsidence basin and the boundary angle of the moving basin are obviously increased, and the stress concentration of the coal pillar is weak. Besides,coal pillar of different water content of the original rock stress field is affected by roughly the same height which is approximately 150 m, and the height and moisture content of the surface boundary and center after mining have exponential relation.

关 键 词： 条带开采 下沉盆地 开采沉陷 数值模拟

领　　域： [矿业工程] [矿业工程]