大采高长工作面地表岩层移动规律

Ground Strata Movement Regularity at Large Mining Height and Extended Mining Face

寺河矿工作面采高为6.2 m,长度为300 m,开采强度大,地表岩层移动及矿压显现与普通综采工作面相比较为明显。通过建立4301工作面地表观测站对岩层移动进行观测。文章对观测数据进行分析,得到了大采高长工作面地表岩层移动的基本规律。

At 4301 working face of Sihe Coal Mine, the mining height is 6.2m; the inclined length is 300m. The mining intensity is strong. The ground strata movement and behavior of rock pressure are more obvious than tge ordinary fully mechanized coal faces. The surface deformation and subsidence were observed by surface surveying stations of 4301 mining face. In the paper,the observation data is analyzed, the basic regularity of ground strata movement is obtained.