Research on the Application of Grouting Reinforcement Technology in Subway Tunnel
Based on the construction of No.1 and No.2 connecting passages of a comprehensive transportation hub in the silt area of Zhengzhou City,the convergence deformation value of the shield segment(local)of Metro Line 1 exceeds the warning value.In view of this tunnel disease phenomenon,this paper introduces the double-liquid micro-disturbance grouting reinforcement technology outside the tunnel to control the convergence deformation of the shield segment to continue to increase,including the process principle,grouting sequence and process flow.Practice shows that the double-liquid micro-disturbance grouting reinforcement technology outside the tunnel has a good construction effect in controlling the convergence deformation of the segment.
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