Study on pressure measurement technology of drilling through layers in high-level drilling fields of coal roadway design
Chen Xuexi1, 2, Chen Guangjian1
1. School of Safety Engineering, North China University of Science and Technology, Beijing 065201, China;
2. Hebei Province Key Laboratory of Mine Disaster Prevention, Beijing 065201, China
In order to ensure the accuracy of gas pressure measurement results and meet the relevant requirements of Henan Province, under the conditions of an existing coal roadway in a certain mine in Henan, a design of high-level drilling site through-hole drilling pressure measurement technology was adopted to directly measure the gas pressure of coal seams. The calculation and analysis of the pressure measurement results verified that the current pressure measurement results were true and valid. The pressure measurement technology for drilling through layers in the high-level drilling field of coal roadway design had certain advantages under the premise of accuracy of the pressure measurement.
