Drainage pipeline positioning device

Abstract

The invention provides a drainage pipeline positioning device. A traditional cast-in-place concrete foundation is transformed into prefabricated slabs, and a construction period is greatly shortened.A concrete foundation in the structure proposed by the invention does not need multiple times of pouring, has good stability, is not prone to rolling and displacement and can be prefabricated in advance and produce in batches. On the basis of ensuring of the strength and supporting force of the concrete foundation, the self-weight is decreased, the concrete is quick to assemble and easy to maintain, the crack resistance and the shrinkage deformation can be both guaranteed, and the concrete positioning device can make a corresponding size correspondence table based on the outer diameter size, pipe thickness and reserved clearance of a concrete drainage pipeline. The positioning device is simple in structure and convenient to install, and the problems of large self-weight, poor cracking resistance, poor tensile strength, large shrinkage deformation and the like in the cast-in-place concrete foundation are solved.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering equipment and relates to a drainage pipe positioning device. Background technique [0002] With the rapid development of urban construction, the laying of municipal drainage pipes is widely used in construction. However, due to the low stability of the sand foundation, it is very easy to disturb the laid pipeline during the pipeline backfilling process. The disturbance of the pipeline not only affects the closed water test effect, but also causes the loss of sand and gravel near the pipeline due to water seepage at the interface during later use. This further exacerbates water seepage at the joints of concrete drainage pipes. In the prior art, the concrete cast-in-place foundation is mostly cast in one piece in engineering, and there are problems such as high cost, poor crack resistance, large shrinkage and deformation, and great influence by geological conditions. [0003] Therefo...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a positioning device for drainage pipes, which is used to solve the problem that in the prior art, due to the low stability of the sandstone foundation, it is easy to disturb the laid pipeline during the pipeline backfill process. The disturbance of the pipeline not only affects the effect of the closed water test, but also Water seepage at the interface in the later use will cause the loss of sand and gravel near the pipe, further aggravating the water seepage at the interface of the concrete drainage pipe; the concrete cast-in-place foundation is usually poured as a whole in the project, and there are high cost, poor crack resistance, and shrinkage deformation Large, affected by geological conditions and other issues

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