基于水力压裂法的断层防水煤柱合理留设

Reasonable Retainment of Fault Waterproof Pillar Based on Hydro-fracturing Method

摘要: 通过水力压裂法对太原东山煤矿煤层抗拉强度进行测试，验证了此方法在煤层强度测试中应用的适用性，获得的K_p较实验室的数据＞10倍以上，为今后断层防水煤柱的留设提供了依据，该参数使得防水煤柱宽度大为缩小。

Abstract: Coal seam tensile strength of in Taiyuan Dongshan Coal Mine is tested by hydro-fracturing method, and the applicability of this method on coal seam tensile strength is verified. The obtained K_p value is over 10 times than data of laboratory, which provides the basis for the retainment of waterproof pillar, this parameter enables the width of waterproof pillar greatly shorten.