摘要
以金鸡滩煤矿首采工作面1206工作面地表实测数据为例,分析了地表沉陷、变形特征,研究了厚松散层首采工作面地表沉陷规律。结果表明:首采工作面地表下沉变形量较小,最大下沉值3 059mm、最大水平移动值1 536mm、最大水平变形值40mm/m。
Taking the testing data of 1206 first mining face in Jinjitan Coal Mine as an example,this paper analyzes the characteristics of surface subsidence and deformation,and studies the subsidence law of the first mining face in thick and loose layers.The results show that the subsidence deformation in the first mining face is small,with the maximum subsidence of 3059 mm,the maximum horizontal movement of 1536 mm,and the maximum horizontal deformation of 40 mm/m.
作者
贺国伟
郭剑
HE Guowei;GUO Jian(Shannxi Railway Institute,Weinan 714099,China)
出处
《山西煤炭》
2020年第3期70-73,共4页
Shanxi Coal
关键词
厚松散层
地表沉陷
变形
首采工作面
thick and loose layer
subsidence
deformation
the first mining face
