block caving meaning in English

崩塌式采矿法
大块坍落
分块崩开采法
分块崩落开采法
阶段崩落法
矿块崩落采矿法

An experimental study on the block caving system in fengshan copper mine
丰山铜矿自然崩落法的试验研究
Forced block caving
强制分段崩落开采
Prediction study of caving space in block caving mining method by magnetic strength change measured in field
利用磁铁矿磁场变化预测崩落空间的现场研究
The conventional methods for mining such seams including the longwall blasting and block caving suffer form the drawbacks of being low in recovery , high in labor intensity and low in efficiency . after shifting to the use of the fully - mechanized extraction system by the zhaogezhuang branch mining industry co . of kailuan ( group ) co . , the mining of the pitching seams has met with remarkbable social and economic result
针对大倾角煤层长壁炮采、落垛等采煤方法,存在回采率较低、员工劳动强度大、高产高效受限及安全等诸多问题,开滦(集团)赵各庄矿业分公司在探讨大倾角煤层采煤工艺的改革及实践大倾角煤层综合机械化采煤过程中,取得了较好的社会经济效益。