Tunnel ditch cable trough large-section one-time pouring device and construction method

Abstract

The invention belongs to the technical field of tunnel ditch cable trough construction, and solves the problems that the construction efficiency is affected due to the fact that an existing truss type integral tank car occupies two lanes in the construction process, construction joints become more and water seepage is serious due to segmented pouring, and the distance between formworks cannot be adjusted along with the ditch wall thickness of a ditch cable trough. The tunnel ditch cable trough large-segment one-time pouring device comprises a single-side walking trolley and a ditch cable trough formwork, a walking mechanism and a bracket used for bearing the ditch cable trough formwork are arranged at the bottom of the single-side walking trolley, and a lifting mechanism is arranged at the position, corresponding to the ditch cable trough formwork, of the top of the single-side walking trolley. The ditch cable trough formwork comprises a plurality of single formworks arranged in parallel and a plurality of telescopic units used for connecting the single formworks and adjusting the position relation between the single formworks. On the premise that the construction quality and speed are guaranteed, one-time pouring forming of the tunnel ditch cable trough with the length being 100 meters or above can be achieved.

Description

technical field [0001] The invention belongs to the technical field of tunnel ditch cable groove construction, and in particular relates to a large-segment one-time pouring device and construction method of a tunnel ditch cable groove. Background technique [0002] In order to meet the needs of drainage and cable installation in the tunnel project of high-speed railway, trenches and cable troughs are usually arranged on both sides of the tunnel. [0003] The traditional construction method is to use small combined steel molds to construct side trenches and cable trenches step by step. The concrete construction process of the entire side trench cable trenches is discontinuous, complicated procedures, slow construction progress, long cycle time, and concrete will form two constructions after completion. The joints will affect the beauty and integrity of the concrete structure of the tunnel side ditch and the cable trough. [0004] After retrieval, the Chinese patent CN2051356...

AI Technical Summary

Problems solved by technology

[0006] In view of the fact that the existing truss-type integral tanker occupies two lanes during construction, which affects construction efficiency, segmental pouring leads to more construction joints and serious water seepage, and it is impossible to realize long-segment One-time pouring, and the distance between the templates cannot be adjusted with the thickness of the trench wall of the cable channel. The single-side walking trolley and the retractable gutter cable trough formwork avoid the problem that the truss-type integral tank car occupies two lanes and the formwork cannot be adjusted flexibly, and the formwork is connected and installed before pouring, avoiding segmental pouring As a result, there were many construction joints and serious water seepage. On the premise of ensuring the construction quality, the one-time pouring of more than 100 meters of tunnel trench cable channels was realized.

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