摘要
7623工作面是邢台矿现有的唯一分层充填开采工作面,开采煤层属于厚煤层,且该面地质条件复杂。通过矿压观测,找到了充填工作面充填体下二次开采矿压显现规律,通过对矿压显现规律与充填效果的分析,有效地减少了工作面片帮和冒顶事故的发生,同时强化两巷巷帮及三角地带的稳定性。
7623 working face was the only existing hierarchical in Xingtai Mine,back fillmining face was thick coal seam with complex geological conditions. The paper got filled open face mining backfill under the secondary pressure behavior by pressure observation.Through the analysis of strata behavior regularity filling effect,which can effectively reduced the facerib and rooffall,while strengthened the two alley and triangle zone stability.
出处
《煤炭与化工》
CAS
2013年第5期17-19,共3页
Coal and Chemical Industry
关键词
充填开采
矿压显现规律
复合顶板
矿压观测
filling mining
compound roof
mine pressure observation
strata-pressure behavior
