同时,实施锚网索耦合支护的深部回采巷道能够满足巷道掘进与工作面回采期间的稳定性控制要求。
The gateway with bolt-net-anchor coupling support can meet the requirements of the stability control during gateway excavation and coal extraction.
随着我国煤矿开采越来越趋向深部,煤矿软岩问题便越来越突出,特别是三软煤层回采巷道的围岩控制问题。
Along with the mines toward deep level in China, the problems of soft rock are becoming more and more outstanding, especially controlling surrounding rock of three-soft coal seam.
现场实践表明,采用底板支承压力区进行深部松动爆破能有效控制回采巷道底鼓,满足生产需要。
Field practice shows that the method of making loose blasting deeply in the area of the mining abutment pressure can control the entry floor heave effectively and meet the need of the production.
现场实践表明,采用底板支承压力区进行深部松动爆破能有效控制回采巷道底鼓,满足生产需要。
Field practice shows that the method of making loose blasting deeply in the area of the mining abutment pressure can control the entry floor heave effectively and meet the need of the production.
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