Novel supporting structure of combined prefabricated pipe jacking working well

Abstract

The invention discloses a novel supporting structure of a combined prefabricated pipe jacking working well. Four screw rods can rotate at the same time by rotating hand wheels, then four arc-shaped plates abut against a first prefabricated plate, a second prefabricated plate, a third prefabricated plate and a fourth prefabricated plate at the same time, stress of the prefabricated plates is uniform, the inner wall of the working well can be stably supported, meanwhile, an installation box and the like can be detached, and operation is easy and fast; and a supporting ring is arranged, vertical climbing of workers in the well cannot be affected, and the four screw rods are distributed on the supporting ring in an array manner. According to the novel supporting structure, the four screw rods can rotate at the same time by rotating the hand wheels, then the four arc-shaped plates abut against the first prefabricated plate, the second prefabricated plate, the third prefabricated plate and the fourth prefabricated plate at the same time, the stress of the prefabricated plates is uniform, the inner wall of the working well can be stably supported, meanwhile, the installation box and the like can be detached, and operation is easy and fast; and the supporting ring is arranged, and vertical climbing of the workers in the well cannot be affected.

Description

technical field [0001] The invention relates to the technical field of pipe jacking construction, in particular to a novel support structure for a combined prefabricated pipe jacking working well. Background technique [0002] With the development and construction of the city, the construction scale and types of various municipal infrastructure supporting pipelines and other structures and facilities in the city’s underground have increased to varying degrees, resulting in tight urban underground space. The construction space of foundation supporting pipelines is limited to varying degrees, so construction without trenching has become the preferred method of various pipeline constructions, such as pipe jacking construction, which belongs to the non-excavation construction method, which is a method of no excavation or less Excavated pipeline burial construction technology; pipe jacking construction is to use the jacking force generated by the jacking equipment in the working ...

AI Technical Summary

Problems solved by technology

[0004] At present, reinforced concrete retaining walls are commonly used in the working well support structure of pipe jacking construction. The production method is: in the excavated working well, the steel bars are bound on site, and the formwork is used to pour the concrete. Due to the complicated procedures and long construction period of this method, It will have a great impact on the traffic of the construction road section, and pollute the surrounding environment, which will seriously affect the normal life of nearby residents. It can be seen that the production method of the pipe jacking well support structure is extremely inconvenient, and the production method based on this method is extremely inconvenient. The working well is costly, time-consuming and labor-intensive, and is basically disposable. It cannot be reused after dismantling, which wastes resources and virtually increases the investment cost of the project.

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