Method for protecting heat supply pipe paved after shallow soil covering under road surface

Abstract

The invention discloses a method for protecting a heat supply pipe paved after shallow soil covering under a road surface. The method comprises the following steps of digging a pipe groove, and tamping and leveling a base; pouring a concrete pipe foundation, erecting formworks on the leveled base according to double pipe positions, and pouring a concrete pillow foundation; arranging a concrete sleeve, hoisting the concrete sleeve to the pillow foundation after the strength of the pillow foundation meets the requirement, and conducting temporary fixing; conducting penetrating and welding of theheat supply pipe, enabling the heat supply pipe to penetrate through the concrete sleeve, and conducting welding segment by segment; connecting a concrete outer sleeve, adjusting the position of theconcrete outer sleeve, and conducting centered connection; building a corrugated compensator well, building a square well chamber at a corrugated compensator, enabling the size of the well chamber tomeet the size requirements of the corrugated compensator; and after pipe and well chamber construction and detection are completed, conducting earthwork backfilling, and constructing a face layer of the road surface. By means of the method, the heat supply pipe paved after shallow soil covering under the road surface can be effectively protected, the workload of pouring concrete on site is reduced, and the construction period is greatly shortened.

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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