综放开采地表变形规律监测分析

Monitoring and Analysis of Surface Deformation Law in Fully-mechanized Top-coal Caving Mining

根据2309综放工作面开采地表变形监测数据以及地质资料,对综放开采引起的地表变形规律进行分析,得出3号煤层在综放开采条件下的地表下沉移动参数,并分析了地表下沉特点及规律,为该矿后续保护煤柱留设以及“三下”开采提供一定借鉴。

According to the surface deformation monitoring data and geological data of 2309 fully-mechanized top-coal caving mining face,the surface deformation law caused by fully-mechanized top-coal caving mining is analyzed,and the surface subsidence movement parameters of No.3 coal seam under fully-mechanized top-coal caving mining condition are obtained,and the surface subsidence characteristics and laws are analyzed,which can provide some reference for the subsequent protection pillar setting and"three under"mining of the mine.