摘要
对硐室过去支护方式及破坏机理进行综合分析,获得围岩变形破坏的机理。现采用格栅钢架配合高强度、高预紧力锚网索联合支护对变形破坏硐室进行修复,并合理设计支护参数,改进后的施工设计方案有效地控制了硐室围岩的变形破坏。
Cmprehenslvely analyzed the supporting mode and failure mechanism of chamber in the past and obtained surrounding rock deformation and failure mechanism. Now through the Use of high prestressed high strength grid steel frame and anchor net cable combined support to repair deformation and failure chamber,and the rational design of the supporting arguments,then the improved construction design scheme have effectively controlled the deformation and damage of surrounding rock.
出处
《煤炭技术》
CAS
北大核心
2016年第3期33-35,共3页
Coal Technology
基金
贵州省科学技术厅
毕节市科学技术局
贵州工程应用技术学院科学技术联合基金项目(黔科合LH字[2014]7519号)
关键词
格栅钢架
大断面硐室
采动影响
高预紧力
grid steel frame
large section chamber
mining influence
high pretightening force
