煤层底板阻渗性试验研究及评价

Experimental study and evaluation of anti-permeability test of coal seam floor

针对构造因素对二水平安全带压开采的关键制约作用及断层扰动底板带压开采阻水性影响的复杂性,对城郊煤矿底板断层带和完整地段阻渗强度进行现场实测,获取了底板断层带的渗透性及其抗渗透破坏强度,研究得到了天然水动力条件下底板断层带的渗透性及断层带的抗渗透破坏强度,为深部断层带和完整地段阻渗性评价提供量化依据,为矿井底板水害防治提供技术保障,对永夏矿区后续深部煤炭开采也具有较重要的示范意义。

I n vie^v of the effect of structural factor on the second level of mining and the compleness to compensated mining on the faulted floor,a field test of the anti-permeability suburban coal floor was carried out,to obtain the permeability and the anti-permeability strength of the faof natural water power,the permeability and the anti-permeability strength of the fault zones were obtained,which provided quantitativebasis for evaluating the anti-permeability of the deep fault zones and intact section. Further more,the technological guarantee for coalmine flood damage control was offered and an important demonstration for the follow-up deep mining of Yongxia supported.