燕子山矿复合煤层开采井巷压力显现特征及控制

Strata Behaviors and Pressure Control in the Composite Seam in Yanzishan Mine

通过对燕子山矿下部煤层的分岔合并情况,以及开采过程中井巷压力显现的观察与分析,指出在不同压力影响阶段井巷变形破坏的不同表现,提出回采工作面巷道布置设计、支护选择等是影响复合煤层井巷维护的重要因素,以求主观支护措施同客观压力显现规律相适应。

Through the observation and analyse of strata behaviors in mining, it is pointed out that the strata behaviors are different in various mining level, and the draft layout and support design is important to the maintainment of composite coal drafts.