Application of Comprehensive Reinforce Technology in Soft and Crumbly Surrounding Rock in High Stress

摘要

Based on soft and crumbly surrounding rock of roadway,poor integrity of roof,drench water in roadway,the large in-situ stress and other complex conditions,this paper analyzes the cause of roadway destruction and grouting strengthening mechanism,using the coupling of grouting technique to integrated strengthening for the region.Engineering application shows that the integrated strengthening effect is obvious,and the economic and technique effectiveness is remarkable.The successful application of secondary coupling grouting technology provides the reference for the mine laneway construction of similar geological conditions.