blasting mining face

基本解释

The blasting mining caving coal face, large indination and overhand mining technology is successfully applied in Chaohua Coal Mine of Zhengzhou Coal Industry Group Comp.
郑州煤业集团超化煤矿采用炮采放顶煤工作面大倾角仰采技术取得成功，解决了大倾角采煤工作面的支架失稳问题。
The case of accidents, the proposed blasting mining roof caving face the basic requirements for control and prevention of incidents of roof effective measures, must learn.
该文通过事故案例分析，提出了炮采放顶煤工作面顶板控制的基本要求和预防顶板事故发生的有效措施，有一定借鉴意义。
Combining with the geological case, oblique mining process at blasting face 34006 analyze the accepted force reason of collapsed pillar and introduce the preventing technique and achieved benefit.
结合340 0 6炮采工作面地质情况、俯斜开采及工艺，对工作面液压单体柱倒柱原因进行了受力分析，并介绍了防止液压单体柱倒柱技术及取得的效益。