摘要
分析了裂隙、围岩有效孔隙率、结构面密度等对巷道注浆的影响 ,阐明了壁后充填加固、裂隙充填与压密、注浆后形成的网络骨架等注浆加固巷道围岩的作用机理 ,在此基础上 ,提出了围岩加固圈厚度、浆液扩散半径等的计算模型 。
The influence of fissure, valid void ratio of wall rock, density of structural plane upon heading grouting are analyzed, and the mechanism for reinforcement of headings is explained by filling wall rock with grout, filling and compressing fissure, and meshwork framework after grouting. Based on those mechanism, the computation model for the thickness of reinforcing ring for wall rock and the diffusing radius of grouting are put forward. Then it is concluded that heading reinforcement by grouting could be an effective reinforcing method.
出处
《矿冶工程》
CAS
CSCD
北大核心
2005年第1期3-5,共3页
Mining and Metallurgical Engineering
关键词
巷道围岩
注浆加固
作用机理
计算模型
wall rock of the tunnel
grouting reinforcement
mechanism of action
calculation model
