A protection method for laying heating pipes after shallow soil covering under the pavement

Abstract

The invention discloses a protection method for laying heating pipelines under the pavement after being shallowly covered with soil, which comprises the following steps: excavating pipe grooves, compacting and leveling the base; pouring concrete pipeline foundations, and setting formwork on the leveled base according to double pipe positions, And pour the concrete pillow foundation; arrange the concrete casing, after the pillow foundation reaches the strength, hoist the concrete casing to the pillow foundation, and fix it temporarily; wear the heating pipe and weld it, put the heating pipe in the concrete casing, and install it section by section Welding; connect the concrete outer casing, adjust the position of the concrete outer casing, and center the connection; build a corrugated compensator well, and build a square well chamber at the corrugated compensator, the size of the well chamber meets the size requirements for setting the corrugated compensator; pipes and wells After the chamber construction and inspection are completed, the earthwork can be backfilled and the road surface layer can be constructed. The invention can effectively protect the heat supply pipeline under the road surface with shallow soil covering, reduce the workload of pouring concrete on site, and greatly shorten the construction period.

Description

technical field [0001] The invention relates to the technical field of pipeline protection, in particular to a protection method for heating pipelines laid after shallow soil covering under the road surface. Background technique [0002] Urban heat supply pipelines refer to special pressure pipelines starting from heat source plants such as boiler rooms, direct-fired engine rooms, and heating centers, and leading to various heat exchange stations or heat terminals in the city. The key to the normal functioning of the city. [0003] During the transformation and maintenance of urban heating pipelines, it is often encountered that the pipelines are laid under the road surface of motor vehicles. Under such engineering conditions, the heating pipelines need to be buried in the existing road subgrade, and are restricted by the current conditions. The depth of soil cover of the pipeline is relatively shallow, and it directly bears the load of the road surface. Not only is the co...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a protection method for laying heating pipelines after shallow covering of soil under the pavement, so as to solve the problem that the pipeline construction and protection methods in the prior art have a large amount of concrete pouring on site, and formwork and maintenance are required during the construction process, and the construction period is relatively long , affecting the resumption of road traffic, causing great inconvenience

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