Treatment Technology of Initial Support Penetration of Carbonaceous Shale Tunnel in Water-rich Stratum
Based on the entrance section of Jinyanghe Tunnel on the right line of Mengla-Lvchun Expressway in Yunnan Province,it analyzes and studies the initial support penetration during the three-step construction of carboniferous shale tunnel in water-rich stratum.Targeted treatment measures are taken from deformation control,radial grouting reinforcement,support strengthening,steel frame disassembly and replacement and excavation method optimization,and the problem of initial support penetration was solved successfully and the construction safety was ensured combined with the deformation monitoring of surrounding rock.
water-rich stratumcarboniferous shalegeological forecastinitial support penetrationarch frame disassembly and replacementgrouting reinforcementmonitoring measurementstability
万方数据
维普
