基于FLAC^(3D)的深部软岩巷道中空注浆锚索加固分析  

Analysis of Hollow Grouting Anchor Cable in Deep Soft Rock Roadway Reinforcement Based on FLAC^(3D)

作　　者：郑志涛[1] 徐颖[1] 戴国涛 

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001

出　　处：《煤炭技术》2015年第5期43-45,共3页Coal Technology

基　　金：国家自然科学基金(煤炭联合基金)重点项目(51134012);国家自然科学基金项目(51274009)

摘　　要：清水营深部软岩巷道顶板下沉量大,两帮位移大,底鼓严重,需采取新的加固方案。利用FLAC3D数值模拟软件对锚喷支护和中空注浆锚索加固支护2种条件下的围岩变形状态进行对比分析。结果表明,围岩两帮以及顶、底板的位移降低,围岩的大变形失稳现象得到有效控制,采用中空注浆锚索支护方案可行。The deep soft rock roadway of Qingshuiying have large roof subsidence quantity,huge twoside wall displacement and serious floor heave.And it should carry out a new reinforcement scheme.Using the numerical simulation software FLAC3 Dto comparative analysis of surrounding rock deformation of support under the two conditions of the reinforced shotcrete and hollow grouting anchor cable.The results indicate that the displacement of two sides of surrounding rock and roof and floor have been reduced,the large deformation of surrounding rock instability has been effectively controlled,thus hollow grouting anchor support is feasible.

关 键 词：数值模拟 FLAC3D 底鼓 中空注浆锚索 巷道加固 

分 类 号：TD353[矿业工程—矿井建设]