松散破碎围岩两步耦合注浆技术与浆液扩散规律  

RESEARCH AND APPLICATION OF TWO-STEP COUPLED GROUTING TECHNOLOGY FOR LOOSE AND FRACTURED SURROUNDING ROCK

作　　者：王卫军[1] 杨磊[1] 林大能[1] 李树清[1] 

机构地区：[1]湖南科技大学能源与安全工程学院,湘潭411201

出　　处：《中国矿业》2006年第3期70-73,共4页China Mining Magazine

基　　金：湖南省自然科学基金资助项目(04JJ3113)

摘　　要：基于巷道围岩松散破碎、两帮充填不实、木支架临时支护等复杂条件,分析了斜岭煤矿+60水平运输大巷破坏机理及原因,提出“两步耦合注浆”新技术对该巷道进行加固,并研究了耦合注浆加固机理和浆液在围岩中的扩散规律。实践表明:两步耦合注浆技术是解决松散破碎围岩支护难题的有效途径,取得了良好的支护效果。Based on the complicated conditions of loose and fractured surrounding rock, backfill not enough, temporary supporting by timber and etc, the destructive mechanism and reasons to 4-60 level main haulageway in Xieling coal mine is analyzed The new technology of two-step coupled grouting is put forward to support the roadway with the characteristic of loose and fractured surrounding rock. The mechanism of coupled grouting reinforcement and spread regularity of grout in surrounding rock are researched. Practice showed that it is an effective approach of the technology of two-step coupled grouting to resolve the problem of supporting loose and fractured surrounding rock and the supporting scheme has achieved good results.

关 键 词：松散破碎围岩 耦合注浆 扩散规律 围岩加固 

分 类 号：TD353.6[矿业工程—矿井建设]