blasting mining face

常見例句

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.
鄭州煤業(yè)集團超化煤礦采用炮采放頂煤工作面大傾角仰采技術取得成功，解決了大傾角采煤工作面的支架失穩(wěn)問題。
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.
該文通過事故案例分析，提出了炮采放頂煤工作面頂板控制的基本要求和預防頂板事故發(fā)生的有效措施，有一定借鑒意義。
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.
結(jié)合340 0 6炮采工作面地質(zhì)情況、俯斜開采及工藝，對工作面液壓單體柱倒柱原因進行了受力分析，并介紹了防止液壓單體柱倒柱技術及取得的效益。