强韧封层稳压胶结在过断层施工中的应用

Application of rigid sealing stable pressurized cementation to construction in fault area

在分析多种特殊施工方法过断层的基础上,总结了东欢坨矿5次过断层的经验教训,并采用小导管超前注浆、锚注加固地层,实现了超前注浆导管蜂窝高强密集、多层锚网喷强韧封层与稳压胶结支护体系,有效地控制了围岩变形,确保了巷道安全顺利穿过断层。

Based on the analysis of several special construction methods passing through faults,the paper summarized the experiences and lessons from five faults passing through in Donghuantuo Mine.With the application of the pilot grouting with small tubing and the strata re- inforcement with bolt and grouting,a tough sealing and stable pressurized biding support system was set up with the pilot grouting tube high strength,intensive and multi layer bolt,steel mesh and shotcreting.Thus the deformation of the surroundi...