Construction method of monolithic road-bed in rail tunnel

Abstract

The invention discloses a method for constructing an integrated road bed of a track traffic tunnel, which is a supporting frame method for short. Firstly, a finished track panel assembled on a base is hoisted to the constructed tunnel; and the track panel of sleepers with different forms is born through adopting a supporting frame of a lower bearing type track panel; secondly, the track panel in the construction working face is hoisted to the designed elevation; the supporting frame of the track panel is mounted to support the track panel; a transverse supporting lever is utilized to approximately fix the direction of the track panel; and finally, according to fiducial mark, the elevation of track surface, the direction of the track, level and height are adjusted to the designed positions; after the binding and welding of concrete reinforcing bars and the erection of a template of the road bed are sequentially completed, and the integrated road bed is finally subjected to concrete pouring to obtain the integrated road bed; and the steps are sequentially advanced to complete the whole construction. The method reduces control links and material waste, improves construction schedule, ensures construction quality and is mainly used for the structural construction of undergrounds, light rails, tunnels, bridges, large-scale vehicle fields and other integrated road beds.

Description

technical field [0001] The invention relates to a construction method for an integral ballast bed in a rail transit tunnel, in particular to a construction method for producing an integral ballast bed in a rail transit tunnel by using a support frame method. Background technique [0002] With the increasing development and progress of society, urban ground transportation has gradually shown its limitations, and urban underground transportation has played a vital role in relieving urban traffic pressure. The development of urban underground transportation is mainly determined by underground railways. Because underground railways have certain difficulties in road inspection and maintenance, a high-strength, high-stability, and easy-to-maintain urban rail transit is needed to meet the needs. [0003] The traditional construction methods are: [0004] 1. Adopt the construction scheme of "pillar method" [0005] The construction plan of the so-called "supporting pier method" is...

AI Technical Summary

Problems solved by technology

Disadvantages: Large waste of materials during construction; many control links, which may easily cause human-made quality accidents; slow construction progress

Disadvantages: In the process of pouring the concrete of the integral ballast bed and when crossing operations, it is easy to affect the geometric dimensions of the rail row; the waste of materials in the construction is relatively large; the reserved holes at the support frame do not match the color of the poured ballast bed after filling , affecting the appearance quality of the overall ballast bed

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