Mine Safety Technology Branch, China Coal Research Institute National Key Lab of Coal Resource High Efficient
Mining and Clean Uillization, China Coal Research Institute

为了准确确定穿层测压钻孔参数,以宏远煤矿15号煤层巷道及其高抽巷为原型,建立了穿层测压钻孔的几何模型,根据模型中穿层测压钻孔与倾斜煤层的空间层位关系,探讨了伪倾角对钻孔长度计算的影响,并得出钻孔长度和岩孔段长度计算的几何公式。基于Excel数据处理软件,编写穿层测压钻孔长度计算程序,发现理论长度与实际长度的误差不大于1 m,验证了计算公式的准确性,说明采用该计算公式可以提高设计效率和现场施工的准确性。

In order to accurately determine the parameters of the pressure measuring borehole drilling through seam, based on No. 15 seam gateway and the high I evel gas drainage gateway in Hongyuan Mine as a prototype, the geometrical model of the pressure measuring borehole drilling through the seam was established. Acc ording to a space layer relationship between the pressure measuring borehole drilling through the seam and the inclined seam in the model, the paper discussed a false inclination affected to the calculation of the borehole length and a geometrical formula to calculate the borehole length and the rock borehole length was obtained. Base d on an Excel data processing software, a program to calculate the length of the pressure measuring borehole drilling through the seam was compiled and written.The P rogram found that the error between the theoretical length and the actual length was less than 1 m. The accuracy of the calculation formula was verified and the applica tion of the calculation formula could improve the design efficiency and the site construction accuracy.

国家科技重大专项资助项目(2011ZX05063-009；2011ZX05040-001)；