Method and structure for protecting pipeline in situ by using reinforced concrete joist

Abstract

The invention discloses a method and a structure for protecting a pipeline in situ by using a reinforced concrete joist. A protection process has the following steps: firstly, constructing a underground diaphragm wall or a foundation pit support pile; secondly, poring support columns; thirdly, hoisting a reinforcement cage and pouring the support columns; fourthly, excavating an earthwork to the bottom of a pipeline to be protected; fifthly, welding reinforcement of the joist to the support columns; sixthly, binding main reinforcement and stirrups of the joist; seventhly, arranging anti-rolling buttresses and pouring the joist; and eighthly, completing the pouring and recovering a pavement. The method for protecting the pipeline in situ by using the reinforced concrete joist is used to protect the pipeline in situ, which is simple in process and operation, saves a construction period, reduces the construction cost, and makes the protection more concise and in place. The structure for protecting the pipeline in situ by using the reinforced concrete joist is formed by combining the joist with the anti-rolling buttresses and carrying out support pouring through the support columns. The structure has the advantages of simple structure, stable support and good support and protection effects.

Description

technical field [0001] The invention relates to a method and a structure for protecting a pipeline, in particular to a method and a structure for in-situ protecting a pipeline by using a reinforced concrete joist. Background technique [0002] In recent years, as urban land use has become more and more tense, underground space development has to be carried out under many urban roads. At this time, we are faced with the problem of demolition or in-situ protection of existing pipelines. The current conventional method for pipeline protection is to relocate the pipeline, but the relocation has problems such as long approval time, increased project cost, and extended construction period. In-situ protection of pipelines within the scope of foundation pit excavation is a technical problem currently existing under the demand of limited increase in project cost and saving construction period as much as possible. Contents of the invention [0003] In order to overcome the deficien...

AI Technical Summary

Problems solved by technology

The current conventional method for pipeline protection is to relocate the pipeline, but there are problems such as long approval time, increased project cost, and extended construction period.

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