这种新技术提高了长壁盘区采矿的效率。
The new technique increases the efficiency of longwall panel mining.
通过对山东王村铝土矿采矿方法优化的介绍，提出了一种新的采矿方法——人工顶柱无底柱长壁式崩落法。
Through the detail introduction on optimization of raining method in Shandong Wangcun Bauxite Mine, this paper puts forward a new mining method——longwall caving with artificial roof pillar.
对于缓倾斜极薄矿脉的开采，通常采用全面法、削壁充填法、选别回采、长壁法等采矿方法。
For the gently inclined and extremely-thin vein, the mining methods including breasting method, waste-lifting stoping, resue stoping, long walling were usually adopted.
研究证明，液压护顶长壁法是开采缓倾斜极薄类铁矿床最优的采矿方法。
The research result shows that longwall mining method with hydraulic pressure frame supporting capping rock is the optimal mining proposal for the gently inclined and extremely thin iron mine.
研究证明，液压护顶长壁法是开采缓倾斜极薄类铁矿床最优的采矿方法。
The research result shows that longwall mining method with hydraulic pressure frame supporting capping rock is the optimal mining proposal for the gently inclined and extremely thin iron mine.
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