【摘要】 以榆阳区三台界煤矿3#煤层为例,采用理论计算和数值模拟实验2种方法对该煤层导水裂隙带发育规律及最大高度进行研究。结果表明:第一,理论公式计算值和数值模拟实验结果都反映了该矿3#煤层开采产生的导水裂隙带不会对矿区主要含水层产生影响,体现了良好的一致性;第二,数值模拟结果与《三下一上规程》理论计算结果更为接近,说明导水裂隙带最大高度为60 m左右更为可靠。更多还原

【Abstract】 Taking 3# coal seam of Santaijie Coal Mine in Yuyang as an example,this paper studied the development laws and maximum height of water flowing fractured zone with two kinds of method such as theoretical calculation and numerical simulation. The results show that the theoretical formula calculation value and the result of numerical simulation have a good consistency,they both show that the water flowing fractured zone caused by mining 3# coal seam will not affect the main aquifer; the result of numerical simulation is more close to the calculation value with theoretical formula from the regulations of buildings,water,rail and main roadway coal pillar design and coal mining,so that maximum height of water flowing fractured zone as 60 meters is more reliable.更多还原