Circular cast-in-place well chamber steel template and construction method

Abstract

The invention provides a circular cast-in-place well chamber steel template. The circular cast-in-place well chamber steel template comprises four outer templates which are successively connected endto end and detachable, and eight inner templates which are successively connected end to end and detachable. The beneficial effect is that the steel template is simple in structure, light, firm, and easy to install and detach, at least four longitudinal seams of a surrounded inner die are inclined seams slantwise intersected with an axis of a well chamber, and the connecting faces of the inner templates at two sides of the inclined seams are inclined face, so a problem that demolding is difficult in a circular cast-in-place well chamber construction process is effectively solved, cast-in-placeconcrete construction quality can be guaranteed, labor intensity of a worker is also reduced, a progress rate is accelerated, and economic benefit is improved. In addition, the circular cast-in-placewell chamber steel template is suitable for a municipal engineering water discharging inspection well. A corresponding main pipe preformed hole, a branch pipe preformed hole and a crawling ladder preformed hole are reserved in surrounded outer die and inner die. The circular cast-in-place well chamber steel template is capable of effectively solving a problem that the demolding of the inner die of the inspection well is difficult, especially a problem that the demolding of the inner die of a three-way well is difficult.

Description

technical field [0001] The invention relates to the technical field of circular cast-in-place concrete well chambers, in particular to a circular cast-in-place concrete well chamber steel formwork and a construction method. Background technique [0002] In today's municipal engineering design, the circular well chamber has been basically designed as a cast-in-place concrete well chamber due to the needs of impermeability and durability. However, in the prior art, the steel formwork for pouring inspection wells is mainly for prefabricated inspection. The well is arranged, and it does not solve the demoulding of the inner mold of the cast-in-place circular well chamber steel formwork in a targeted manner. Due to the swelling force of the concrete, the inner mold is dead, and it cannot be demoulded or there is no simple and practical demoulding method. For example, in the municipal drainage cast-in-place inspection well, especially the tee well pouring, the ladder cannot be ins...

AI Technical Summary

Problems solved by technology

[0002] In today's municipal engineering design, the circular well chamber has been basically designed as a cast-in-place concrete well chamber due to the needs of impermeability and durability. However, in the prior art, the steel formwork for pouring inspection wells is mainly for prefabricated inspection. The well is set up, and it does not specifically solve the demoulding of the inner mold of the cast-in-place circular well chamber steel formwork. Due to the swelling force of the concrete, the inner mold is dead, and the mold cannot be demoulded or there is no simple and practical demoulding method

For example, in the municipal drainage cast-in-place inspection well, especially the tee well pouring, the climbing ladder cannot be installed, and the formwork is heavy, etc.

Moreover, the use of steel formwork is laborious and costly, and the appearance quality is not guaranteed

In short, in the prior art, there is no steel formwork and construction method for the construction of circular cast-in-place concrete well chambers.

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