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使用千米钻机施工穿层测压长钻孔可以定向定点精确选择见煤点,穿层长钻孔有较长的岩石段,避开了采动、瓦斯抽采及其他人为卸压影响,且封孔长度较长,进一步增加了测压钻孔密闭性,保证了测压数据的可靠性和准确性,取得了良好的效果,可以推广应用该测压方法。
The use of km drill drill through the construction of pressure-measuring long holes can be targeted to select the exact point of the coal point, long holes through the long rock section, to avoid the mining, gas drainage and other man-made pressure relief and Sealing length is longer, to further increase the tightness of pressure drilling, to ensure the reliability and accuracy of the pressure measurement data, and achieved good results, you can promote the use of the pressure measurement method.