Construction Technology of Intelligent Mobile Trestle for Integrated Full Hydraulic Tunnel Inverted Arch
In order to solve the problems of single function,floating of arch formwork,limited operation level by construction personnel,and high labor intensity of waterproof board laying in the tunnel inverted arch wharf,relying on the Left Jiashan Tunnel project of the Hanbin section of the Kangyu high-speed railway,through in-depth research on the principle of integrated inverted arch wharf stepping forward,the working method of concrete pouring train group,the construction technology of laying waterproof boards on the inverted arch wharf structure,and the intelligent operation management and control system,A new type of integrated fully hydraulic tunnel inverted arch intelligent mobile gantry crane is developed.Engineering practice has shown that the walking mechanism of the stepped full hydraulic drive on the wharf can move forward flexibly.The middle support legs added to the pier can provide effective support for pouring inverted arches or filling concrete,and the mobile vehicle group added to the pier can meet the parallel operation of pouring and laying side wall waterproof boards.The framed support anti floating system set up can effectively prevent the upward floating of the arch formwork.The modular intelligent control system constructed has achieved real-time remote identification of the working status of the inverted arch bridge.Compared to traditional inverted arch piers,the improved integrated intelligent inverted arch piers have significantly improved construction efficiency,economic and social benefits.
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