南洺河下采煤安全性数值模拟分析

Numerical Simulation Analysis of Mining Safety under Nanming River

万年矿13901工作面位于南洺河水体下,为保障水体下煤炭安全开采,采用数值模拟方法对导水裂隙带高度和地表移动规律进行预计,并通过"规程"公式和拟合公式对模拟结果进行验证。在得出导水裂隙带高度、防水煤岩柱厚度的基础上,结合地表移动规律,对南洺河下安全开采进行分析。

Wannian mine 13901 working face is under the south water body,in order to protect the coal safety mining under the water body,using numerical simulation method to expect the water flowing fractured zone height and surface movement deformation,through the 'discipline'formula and fitting formula to verify the simulation result. On the basis of the height of water transmitting fissure zone,the thickness of the coal and rock pillars,in combination with surface movement deformation law,analyses the safety under the south river.