Formwork trolley and sliding formwork construction method for utility tunnel cast-in-place concrete sliding formwork construction

Abstract

The invention discloses a formwork trolley structure for utility tunnel cast-in-place concrete sliding formwork construction. The formwork trolley comprises a formwork system, a trolley frame, a lateral supporting mechanism, a jacking mechanism and a traveling mechanism. The formwork system is composed of a top formwork assembly and side formwork assemblies. The top formwork assembly is arranged over the trolley frame and connected with the trolley frame. The side formwork assemblies are arranged on the two sides of the trolley frame and connected with the trolley frame through the lateral supporting mechanism. According to the formwork trolley and the sliding formwork construction method, by means of mutual cooperation during pouring of a middle gallery wall of the utility tunnel and large set-shaped steel formworks on all the trolleys, a pouring space of the middle gallery wall of the tunnel is formed between the side formworks of the adjacent trolleys, in addition, the supporting reliability of the formwork structures is guaranteed through the actions of the lateral supporting mechanisms of the trolleys, formwork deformation in the pouring process of the middle gallery wall is avoided, the number of formwork seams is small, and the forming quality of the middle gallery wall is improved; and meanwhile, the formwork trolley is simple in overall structure, labor is saved, and the construction cost is reduced.

Description

Technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a formwork trolley and a slipform construction method for the construction of a comprehensive pipe gallery cast-in-place concrete slip form. Background technique [0002] The comprehensive pipe gallery project refers to the municipal shared tunnel built under the urban roads, which is used to centralize and place the power, communication, water supply, gas and other pipelines in the comprehensive pipe gallery to facilitate unified management and maintenance in the future to realize underground space Comprehensive utilization and resource sharing. [0003] At present, the construction of underground integrated pipe gallery has been carried out on a large scale nationwide. The existing construction method of integrated pipe gallery has the following problems: 1. The traditional scaffolding formwork is used for construction, the construction efficiency is low, the...

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Problems solved by technology

[0003] At present, the construction of underground comprehensive pipe gallery has been carried out on a large scale across the country. The existing construction methods of comprehensive pipe gallery mainly have the following problems: 1. Traditional construction with scaffolding formwork, low construction efficiency, long construction period, manual demolition The labor intensity of loading and transporting materials is high and the construction cost is high; 2. The reliability of the formwork support structure is poor, and the formwork has many seams, and the formwork is easily deformed during the pouring process, resulting in low forming quality; 3. Expansion joints between pipe galleries Misalignment leakage of rubber waterstops, water leakage of screw rods, displacement of embedded parts, and leakage of grout in secondary construction joints, resulting in quality problems such as water leakage caused by concrete honeycomb pockmarks

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