摘要
首先根据围岩强度进行了围岩稳定性分类;提出并实施了以巷道围岩锚注为核心的复合支护方案;实验表明在分别采用聚胺脂、425#水泥进行岩石注浆加固时,岩石强度比其残余强度可以提高0.7-1.1倍、1.3-2.0倍;最后,进行了反底拱支护能力的力学分析。
The stabilities of surrounding rocks are classified according to their strengths. A united supporting scheme of the grouting bolt is proposed and applied. The experiment shows that the strength of rock grouted by MARITHAN N and 425 cement is enhanced # to 70-110 % and 130-200 % compared with the remain one. The support capability of inverted arch is analyzed .
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第z1期21-24,共4页
Rock and Soil Mechanics
关键词
深井地压
巷道稳定性
反底拱
注浆锚杆
deep mine ground pressure
stability of roadways
inverted arch
grouting bolt
作者简介
高延法,男,教授,博导,主要从事岩石力学与工程方面研究与教学工作.
