Construction technology of pipe gallery in gravel layer

Abstract

The invention discloses a gravel layer pipe rack construction technology. The technology is constructed according to the following steps that pipe rack outer mold construction is conducted, a cushion block frame type positioner is placed at the bottom of an excavated pipe rack base groove, core drawing templates and a core drawing mold assembling positioning support are hoisted and placed, the core drawing templates are adjusted and connected, refilling of the two sides of the core drawing templates is conducted, and a pipe rack concrete cushion layer is compacted; pipe rack inner mold construction is conducted, a water stop belt between a wall plate and a bottom plate is finished, a reinforced concrete bottom plate is compacted, an inner wall top mold is hoisted and placed, concrete is poured to the two sides of a concrete box, the core drawing templates on the two sides are drawn out, and the inner wall top mold is pulled out; and pipe rack cast-in-place concrete cover plate construction is conducted, a demolding groove cover plate and an outer template are installed, and after pouring of the outer template, the outer template is dismounted. Providing the gravel layer pipe rack construction technology simple, good in pipe rack forming quality, low in construction cost and high in construction efficiency is the purpose.

Description

technical field [0001] The invention relates to the field of pipe gallery construction, in particular to a construction technique for a gravel layer pipe gallery. Background technique [0002] According to the natural characteristics of the extremely small cohesive force of sand and gravel, the grading coefficient of the earthwork excavation and transportation of the underground pipe gallery foundation groove in the sand and gravel layer is between 1:1.2--1:1.5. If construction is carried out in a narrow urban area, traditional The construction method, anchor rod spraying technology is used to reinforce the slope protection to reduce the slope coefficient, so as to ensure safe production and quality standards. The traditional construction method is expensive, and the construction period is limited by the slope protection technology and the traditional box culvert construction technology. Seriously affect the construction progress and the high cost of the project. Contents...

AI Technical Summary

Problems solved by technology

The traditional construction method is expensive, and the construction period is limited by the slope protection technology and the traditional box culvert construction technology.

Seriously affect the construction progress and the high cost of the project

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