Study on influence of advanced deep-hole blasting pre-splitting roof on stability of gob side entry retaining
In order to smoothly implement gob-side entry retaining and mining without coal pillar in 3207 working face of Nanyang Coal Mine,Shanxi Province,this paper proposes to carry out advanced deep-hole blasting pre-splitting roof near gob side supporting wall.Through numerical simulation and field indust...
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Emergency Management Press
2019-08-01
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Series: | 矿业科学学报 |
Subjects: | |
Online Access: | http://kykxxb.cumtb.edu.cn/article/id/227 |