The analyzed the features and difficulties of the support for goaf left by small coal mine in the mine shaft bottom of Shuguang Mine.

 
  • 分析了曙光煤矿井底车场小煤窑遗留采空区支护的特点和难度,提出采用注浆加固、高强度锚杆、再配合预应力锚索支护方案。
今日热词
目录 附录 查词历史