摘要
长春兴煤矿副斜井全长2 523 m,为解决施工作业缓慢问题,对设计方案进行正交试验,采用钻爆法掘进、锚网喷支护、设计双层结构打钻平台等手段,使巷道掘进速度提高30%～50%,比预计工期提前100 d完工。
The auxiliary slope-shaft of Changchunxing Mine is 2523 m long. To speed up the construction,orthogonal test was conducted on the design. With drilling-blasting excavation, bolting-wire mesh-shorcreting support, double-decker drilling platform design, and other methods, the drilling speed increased by 30% to 50% and the project was completed100 days ahead of the schedule.
出处
《山西煤炭》
2014年第8期47-49,55,共4页
Shanxi Coal
关键词
大断面
光面爆破
副斜井
large-section
smooth blasting
auxiliary slope-shaft
