黄土沟壑区浅埋煤层大采高工作面开采地表移动特征研究  

Research on characteristics of ground surface movement of working face with high mining height in shallow coal seam in loess ravine region

作　　者：王碧清 黄克军[2,3] 曹新奇 苗彦平[1,3] 

机构地区：[1]陕煤集团神木张家峁矿业有限公司,陕西省榆林市719300 [2]陕西煤业化工技术研究院有限责任公司,陕西省西安市710065 [3]西安科技大学能源学院,陕西省西安市710054

出　　处：《中国煤炭》2015年第11期37-40,47,共5页China Coal

摘　　要：针对神南矿区张家峁煤矿黄土沟壑区浅埋煤层大采高工作面开采地表移动的特殊性,在N15203工作面开采期间进行了地表移动实测,分析结果表明:地表下沉曲线连续性较差,在地表移动初期地表沉降具有突变性;地表裂缝的出现呈现时间上的突然性,出现的地点呈固定距离分布,地表裂缝多发育在地形地貌不连续的拐点处。Aiming at the particularity of ground surface movement of working face with high mining height in shallow coal seam in loess ravine region in Zhangjiamao Coal Mine of Shennan mining area,surface movement was measured during the mining in N15203 working face. The results showed that the continuity of surface subsidence curve was not good,and the ground sur-face subsidence was mutational at the preliminary stage of surface movement. The surface cracks trended to appear suddenly and developed at the inflection points of discontinuous landforms,the locations of surface cracks distributed with a fixed distance.

关 键 词：黄土沟壑区 浅埋煤层 大采高工作面 地表移动 

分 类 号：TD325[矿业工程—矿井建设]