采空侧高应力巷道中空锚索注浆加固技术研究  

Study On Grouting Einforcement Technology Of Hollow Anchor Cable Of High Stress Roadway In Goaf

作　　者：闫树鹏 

机构地区：[1]汾西矿业集团中兴煤业公司,山西交城030500

出　　处：《煤矿现代化》2017年第4期92-95,共4页Coal Mine Modernization

摘　　要：随着矿井开采向深部发展,高应力巷道围岩变形破坏现象严重,巷道返修频繁,严重制约煤矿正常生产作业,带来巨大经济损失。为了解决此问题,中空注浆锚索应运而生,中空锚索注浆加固技术能很大程度上提高围岩强度,减小巷道变形量,提高巷道利用周期。鉴于此,本文通过FLAC3D针对围岩变形破坏特征、注浆加固作用、锚注支护效果等方面进行数值模拟,为采空侧高应力巷道全长锚注支护方案及注浆参数选择提供理论依据。With the deep development of the mine mining, the high stress of surrounding rock of roadway is serious, roadway repair is fre- quent, serious restricted normal production of coal mine operation, bring huge economic losses. In order to solve this problem, hollow grouting anchor arises at the historic moment, hollow anchor grouting reinforcement technique can largely improve the strength of surrounding rock, re- duce the deformation of roadway, increase the use of cycle. In view of this, this article through FLAC3D for deformation and failure character- istics of surrounding rock, grouting reinforcement effect, a numerical simulation of the effect of anchor support, etc for the goal side high stress roadway length of anchor support scheme and provides the theory basis for grouting parameter selection.

关 键 词：高应力 变形规律 数值模拟 巷道支护 

分 类 号：TD265.48[矿业工程—矿井建设]