薄基岩浅埋煤层末采顶板下沉探索分析  

Analysis on Roof Subsidence in the Last Stage of Mining on Shallow Coal Seams with Thin Bedrocks

作　　者：董浩[1] 李勇[1] 刘继德[1] 

机构地区：[1]北京天地华泰采矿工程技术有限公司,北京100013

出　　处：《山西煤炭》2012年第2期64-65,70,共3页Shanxi Coal

基　　金：天地科技股份有限公司青年创新基金项目(TJ-JJ-09-HT-2)

摘　　要：针对42-09工作面在末采回撤过程中,主回撤通道顶板来压、3号联以东180m范围内垛式支架卸载、单体液压支柱钻底、帮锚杆崩断、帮网崩裂、顶板沿非采帮煤壁切落等一些列问题,进行了分析和探讨,期对薄基岩浅埋煤层末采主回撤通道支护设计及相关技术人员有所帮助。During the withdrawal of 42-09 working face in the last stage of mining,there appeared a series of problems,including roof weighting of the main withdrawal roadway,chock support uninstalling within 180m east of No.3 connection lane,bottom drilling of single-column hydraulic support,breaking of side anchors and nets,and falling of non-mined coal walls.The problems were studied in order to instruct technicians the support design of withdrawal roadways in the last stage of mining on shallow coal seams with thin bedrocks.

关 键 词：末采 回撤通道 支护 薄基岩 浅埋 

分 类 号：TD3[矿业工程—矿井建设]