摘要
同发东周窑煤业9号煤层与10号煤层间距只有5.81 m,经过计算判定属于极近距离煤层,同时判定100201作为10号煤层的首采工作面顶板属于损伤顶板。文中根据判定结果对原有巷道支护进行优化,并提出采用让压管技术。通过对试验段巷道变形的观测,得出优化后的支护方案能够有效控制围岩变化的结果,有利于同等巷道支护的借鉴。
The distance between No. 9 coal seam and No. 10 coal seam of Tongfa Dongzhouyao Mining Industry is 5.81 m,which was settled as extremely close coal seam by calculation, 100201 working face roof as No. 10 coal seam initial mining working face, was considered to be a damaged roof. The original roadway support was optimized by the result, pressure tube technology was put forward. The optimized support enabled to control surrounding rock change by the observation of tested roadway, with reference for roadway support under similar condition.
出处
《煤炭与化工》
CAS
2016年第8期96-98,共3页
Coal and Chemical Industry
关键词
极近距离煤层
巷道支护
巷道变形
extremely close coal seam
roadway support
roadway deformation
