Rapid construction method for elastic supporting block type monolithic track bed

Abstract

The invention discloses a rapid construction method for an elastic supporting block type monolithic track bed, and relates to the field of construction of monolithic track beds in tunnels. After construction preparation, transporting and placing steel bars and supporting blocks, then surveying and setting out, roughening a bottom plate, and planting the steel bars; laying and binding lower-layer reinforcing steel bars, and placing upper-layer reinforcing steel bars; assembling, hoisting and roughly adjusting the track panel; binding upper-layer reinforcing steel bars; mounting a template; mounting expansion joint plates; finely adjusting and fixing the track panel; then carrying out insulation performance test, ballast bed concrete pouring, tamping, surface finishing and curing; and finally, dismounting the track bent frame, and dismounting the support and the template. Gantry crane construction is conducted, and limited space is reasonably utilized for construction of all procedures;the movable assembling platform solves the problem that the assembling distances of the supporting blocks are unequal; the supporting block hoisting device improves the hoisting efficiency and accelerates the track panel assembling speed; the expansion joint steel plate ensures the straightness of the expansion joint; a surface finishing tool solves the problem of the gradient of a concrete surface. According to the construction method, the construction procedures are scientifically arranged, connection is tight, and the construction quality is guaranteed.

Description

technical field [0001] The invention relates to the construction field of integral ballast beds in tunnels, in particular to a rapid construction method for elastic supporting block type integral ballast beds, which is suitable for the construction of elastic supporting block type integral ballast beds in tunnels using gantry cranes. Background technique [0002] In the construction of the existing integral ballast bed, especially in the tunnel, the space is relatively limited, the assembly spacing of the support blocks is not equal, and the hoisting efficiency is also low, which leads to the problem that the assembly speed of the rail row is not high; the arrangement of the expansion joints In the process, there is sometimes the problem that the expansion joints are not straight; when the ground pump is poured, there is also the problem of frequent pipe blockage. Therefore, in order to solve the above problems, it is necessary to improve the existing construction method. ...

AI Technical Summary

Problems solved by technology

[0002] In the construction of the existing integral ballast bed, especially in the tunnel, the space is relatively limited, the assembly spacing of the support blocks is not equal, and the hoisting efficiency is also low, which leads to the problem that the assembly speed of the rail row is not high; the arrangement of the expansion joints In the process, there is sometimes the problem that the expansion joints are not straight; when the local pump is poured, there is also the problem of frequent pipe blockage

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