The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining.
根据短壁开采条件下保护煤柱的布设特点，建立由保护煤柱支承的关键层力学分析模型。
Taking 2-2 coal seam of Halagou coal mine for example, laneway system and its interrelated parameters with short-wall and continuous mining machine in Shendong mining area were introduced.
以哈拉沟煤矿2 - 2煤层的开采系统为例，介绍了神东矿区连续采煤机短壁式机械化开采的巷道系统及其相关参数。
The stability of coal pillar of the short-wall mining was analyzed systemically by numerical simulation with the rock failure process analysis software (RFPA2D).
采用岩石破裂过程分析软件RFPA2D系统，对短壁机械化开采的煤柱稳定性进行数值计算与分析。
The method of wall mining without pillars was first used in coal mine. In the metal mine it has not been used yet.
壁式无矿柱采矿首先是在煤矿推行，金属矿还未实现壁式无矿柱采矿。
Numerical simulation software FLAC2D is used to simulate the failure mechanism of slender coal pillars (which are of much lower width to height ratios) during high wall mining of thick seam.
对特厚煤层条件下采用螺旋钻机开采细长窄煤柱的破坏过程进行了数值模拟。
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。
With the optimized design, the short-wall top-coal caving face of the mines in Xinjiang Mining Group Co. , Ltd. , increase more or gain good profits.
经过优化的三机配套方案后，新矿集团的各生产矿井的短壁综放工作面均实现了高产，取得了较好的经济效益。
With the optimized design, the short-wall top-coal caving face of the mines in Xinjiang Mining Group Co. , Ltd. , increase more or gain good profits.
经过优化的三机配套方案后，新矿集团的各生产矿井的短壁综放工作面均实现了高产，取得了较好的经济效益。
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