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通过对青山煤矿五水平开拓情况的具体分析,确定了反井钻机型号,介绍了反井钻机的特点和施工工艺,提出了控制钻孔偏斜的因素,在陀螺测井仪的配合下成功施工了4条竖井,成井速度快,成井质量好,平均每条竖井工期27.5 d,平均偏斜率仅为0.3%。
Based on the analysis of the development of Qingshan Mine five levels, the model of the drilling rig was determined, the characteristics and construction technology of the drilling rig were introduced, and the factors of controlling the deflection of drilling borehole were put forward. Four shafts were formed, forming well and forming well with good quality. The average shaft construction period was 27.5 days and the average deflection rate was only 0.3%.