A new method is presented,namely concrete scroll rockbolt supporing .Not only does it improve the security of working and reduce mining costs,but also it accelerates tunneling speed.

 
  • 文中介紹了一種用水泥卷錨桿支護的掘進(jìn)新工藝,不但工作安全可靠,降低了掘進(jìn)成本,而且大大提高了掘進(jìn)速度。
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