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神华宁夏煤业集团羊场湾煤矿6.2m大采高工作面煤层倾角达8°～20°,走向起伏角为8°～12°;其工作面赋存条件之复杂在国内外大采高开采领域很少见。根据工作面生产布局和开采现状,综合考虑了设备因素、经济因素及安全等因素。通过建立长度优化力学模型并运用非线性规划法和工程类比法手段初步对大采高工作面长进行了论证和分析。结果表明,大采高工作面最佳优化长度在经济上存在的合理值并非越大越好,在采高为6.2m的条件下,工作面长度选取300m较为合理。
Shenhua Ningxia Coal Mining Group Yangmaowan 6.2m coal mining face dip angle of 8 ° ~ 20 °, to the ups and downs of the angle of 8 ° ~ 12 °; complex conditions of its working face mining at large mining at home and abroad The area is rare. According to the working face layout and mining status quo, taking into account the equipment factors, economic factors and safety and other factors. Through the establishment of the length of the optimization mechanics model and the use of nonlinear programming and engineering analogy preliminary preliminary analysis of the working face length. The result shows that the reasonable economic value of optimal working length for big mining face is not better, and it is reasonable to select 300m for working face length when mining height is 6.2m.