摘要
叙述了金川矿区不良岩体的特点和危害,提出了应采用把设计、施工和监测为一体的巷道施工方法;介绍了以光面爆破为前导,以"先柔后刚,刚柔相济;先让后抗,抗让结合"为支护原则,以喷锚网支护为基础的不良岩层中大断面巷道掘进的一些技术问题。
Characteristics and harms of bad terrene in jinchuan mining area is described.A working program integrated with design,stopping and monitoring is presented.In this program,the smooth surface blasting and inject method of rock bolting network are applied.
出处
《云南冶金》
2005年第3期3-6,共4页
Yunnan Metallurgy
关键词
不良岩体
大断面巷道掘进
喷锚网支护
bad terrene
large section tunnel advance
injected rock bolting network
