预应力锚注技术在深部区域巷道围岩控制中应用  

Application of prestressed grouted anchor technology in surrounding rock control of deep roadway

作　　者：韩少勇 HAN Shaoyong

机构地区：[1]山东能源集团肥城矿业公司工程管理科,山东泰安271600

出　　处：《中国矿山工程》2021年第4期34-36,53,共4页China Mine Engineering

摘　　要：矿井开采深度不断增大,地压随之增大,导致巷道支护难度增大。为解决深部高应力围岩支护问题,本文运用COMSOL软件进行了原岩巷道断面和预应力锚注支护巷道断面围岩应力分布数值模拟,模拟得出预应力锚注技术可有效控制巷道顶板应力集中问题,并可有效控制顶板岩石失稳问题。将预应力锚注技术应用到某矿11034运输巷支护中,预应力锚注技术有效解决了深部高应力巷道内围岩支护问题。With the increasing mining depth,the ground pressure increases,which leads to the difficulty increase of roadway support.In order to solve the problem of deep high-stress surrounding rock support,this paper uses COMSOL software to carry out numerical simulation of surrounding rock stress distribution in both primary rock roadway section and prestressed grouted anchor support roadway section,and the simulation results show that prestressed grouted anchor technology can effectively control the stress concentration of roadway roof and the instability of roof rock. Prestressed grouted anchor technology is applied to the support of 11034 haulage roadway in a mine,proving that it can effectively solve the problem of surrounding rock support of deep high-stress roadway.

关 键 词：高应力 预应力锚注 数值模拟 巷道支护 

分 类 号：TD713[矿业工程—矿井通风与安全]