long-wall mining 长壁法
a long-wall mining method 长壁式开采法
long wall mining in abroad 国外长壁开采
incline long wall mining coal 倾斜长壁
long wall end mining 长端壁采矿方案
long-wall combined-mining face 长壁综采工作面
When long wall mining to the dip in fully-mechanized coal winning working face is inclined area, we may can't use existing drift draw off water.
当倾斜长壁开采的综放工作面初采范围处于向斜构造区，造成初采放水无法利用已有巷道形成自流放水，必须考虑动力排水或其他的放水方式。
Through optimizing, we suggested the measure of bypass draw off system which can solve draw off problem effectively. This suggested a new mode at inclined long wall mining.
通过进行设计优化，提出采用旁路放水系统放水方案，可有效解决工作面初采的放水问题，为倾斜长壁开采的综放工作面放水方式提出新模式。
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
在综采放顶煤工作面顺槽掘进过程中，由于顺槽煤层顶板松动破碎，并且顺槽采用矩形断面，顶板跨距较大，不利于巷道支护。
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