Now showing items 1-2 of 2
Mechanism conversion process and timeliness of N2-ECBM
(National Mining University, 2018-12-30)
Purpose. Based on the technology by which methane drainage is strengthened under gas injection, to examine the process of gas injection and the mechanism of action. Methods. Physical simulation experiment method, using ...
Research into the effect of gallery size on blast pull in underground coal mines
(National Mining University, 2018-06-30)
Purpose. To investigate the effect of gallery size on blast pull in underground colliery by drilling and blasting techniques. Methods. The study conducted in three different underground collieries namely A, B and C located ...