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利用经验公式计算“两带”高度——信湖煤矿八一采区811工作面以浅及814工作面以浅为例
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Abstract:
2017年我国重新修订《建筑物、水体、铁路及主要井巷煤柱留设与压煤章程》即“三下”规程通过对已观测成果进行总结归纳提出计算导水裂隙带、冒落带高度的经验公式，本文以信湖煤矿八一采区为例，通过采区煤层覆岩条件、煤层及煤层间距特征，合理选取经验公式，对采区“两带”高度进行计算，为煤岩柱留设提供依据。
In 2017, China revised the articles of Association for the retention and coal pressure of coal pillars in buildings, water bodies, railways and main shafts and lanes. By summarizing the observed results, the empirical formula for calculating the height of water diversion fracture zone and caving zone is put forward. Taking Bayi mining area of Xinhu coal mine as an example, the empirical formula is reasonably selected through the coal seam overburden conditions, coal seams and interlayer conditions in the mining area. The height of “two zones” is calculated to provide a basis for the retention of coal and rock pillars.
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