Nonpillar

常见例句

In light of the characteristics of Nonpillar sublevel caving method,Probability integral method is used to predict mining subsidence and modified to improve predicting accuracy.
针对无底柱分段崩落法的采矿特点,把概率积分法引入金属矿山开采沉陷预测中,并通过模型修正提高预测精度。
In the light of the problems in the nonpillar mining, the formation and principles of the wide spacing and the low lean ore drawing process are presented.
针对无底柱采矿存在的问题,阐述了大间距与低贫化工艺的形成及原理,采用该结构及工艺是降低产品成本的有效方法。
As increasing number of metal mines turn to deep mining,tunnel rock burst in nonpillar sublevel caving has grown into one of the major engineering geology problems in the field of mining.
随着金属矿山相继进入深部开采,无底柱分段崩落法巷道岩爆问题成为采矿领域中主要的工程地质问题之一。
Research of On-reef Drift Large Section Drawing in Nonpillar Sublevel Caving Method
无底柱分段崩落法沿脉进路大断面出矿研究
nonpillar sublevel caving
无底柱分段崩落法