Design and Construction Technology of Trestle-type Needle Beam Trolley for Large-section Hydraulic Tunnels
On the basis of analyzing the problems of the existing large-section hydraulic tunnel con-struction method,a trestle-type needle beam trolley where vehicles can pass through is developed,and corresponding construction technology is designed.During the opera-tion of the passable trestle-type needle beam trolley,the trestle-type needle beam and the formwork trolley travel separately and carry a self-propelled reinforcement binding work platform to avoid construction interference during construction.This not only ensures the normal passage of engineering vehicles in the tunnel,but also ensures the normal full-ring lining construction,improves construction efficiency,guarantees lining quality and provides a solution for excava-tion while full-ring lining of large-section hydraulic tunnels.
Trestle-type needle beam trolleyReinforcement work platformFull-ring lin-ingconstructionConstruction interference
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