Analysis of Formation Deformation and Advanced Grouting Technology in Shallow Buried Excavation Tunnel
For clear deep hole grouting technology and advanced small catheter grouting on the influence of the tunnel,in Lanzhou Met-ro line 1 Matan station-Tumendun station shallow buried dark tunnel engineering example as the research background,relying on the actual engineering situation,using the method of numerical simulation and analysis,the underlying displacement and deformation of the tunnel section excavation after grouting.It can be known that the maximum settlement of the tunnel vault is 22.59 mm,16.65 mm;the uplift elevation is 40.00 mm,14.24 mm;the displacement value of the left side of the tunnel arch waist is 21.07 mm,18.18 mm;the displacement value of the right side from left to right is 18.54 mm,10.30 mm.Based on the actual working condition,the reinforcement effect of deep hole grouting technology and advanced small catheter grouting on the shallow buried tunnel is verified.
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