基于UDEC的深部破碎围岩巷道锚注支护应用研究  

Research on Bolt-Grouting Reinforcement in Deep Broken Surrounding Rocks Roadway Based on UDEC

作　　者：任松杰[1] 梁顺[1] 蒋志刚[1] 孙增飞[1] 满建康[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221008

出　　处：《煤炭技术》2011年第12期64-66,共3页Coal Technology

基　　金：江苏省高校优势学科建设工程资助项目(PAPD)

摘　　要：某矿3203工作面轨道平巷在原支护条件下巷道围岩变形严重且支护体失效。针对该轨道平巷的生产地质特点,利用数值模拟软件UDEC4.0,分别对3种不同支护方案下支护效果及其塑性区进行研究,分析得出实现其巷道围岩稳定关键在于能否有效控制两帮煤体的变形,进而提出高预应力锚杆(索)结合帮部注浆加固的综合支护方案。现场工业性试验及实测表明,该支护方案有效控制了巷道围岩变形。There are some problems during driving with the original supporting for the rail gateways at 3203 face in a coal mine, such as great deformation and supporting failure. It is found that whether can control effectively the deformation of the roadwayls sides is the key to achieve the stability of rocks around roadway, after considering geological features of the roadway with comparison and analysis on the supporting effect of different support by UDEC 4.0. Then the supporting technology of high pre-stress bolt combined with bolt-grouting reinforcement is put forward. Practice shows that the technology effectively controls the deformation of surrounding rocks in the roadway.

关 键 词：深部 破碎围岩 锚注支护 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]