Pavement structure based on water sand backfilling technology and construction method thereof

Abstract

The invention discloses a pavement structure based on the water sand backfilling technology and a construction method thereof. The thickness of the pavement structure is 50cm. The pavement is divided into a surface layer, a base layer and a cushion layer from top to bottom, wherein the thickness of the surface layer is in a range of 8cm to 10cm, the thickness of the base layer is in a range of 18cm to 22cm, and the thicknesses of the cushion layer are in a range of 18cm to 22cm. the cushion layer is arranged between a soil layer and the base layer, and backfilling sand is arranged under the cushion layer. The process is simple and practical, and bearing capacity strength and stability of backfilling soil are guaranteed to be in accordance with engineering safety requirements.

Description

technical field [0001] The invention belongs to the field of municipal engineering, and relates to a pavement structure and a construction method based on water shaking sand backfilling technology. Background technique [0002] With the progress of society and the development of cities, more and more municipal pipeline projects are being constructed. After some pipelines are slotted and installed, they need to be backfilled immediately and municipal traffic should be restored as soon as possible. [0003] The problems existing in the prior art are: [0004] 1. After the mechanically rolled foundation is treated, the strength can meet the requirements in a short time, but after a period of time, the foundation may sink and the bearing capacity is not enough; [0005] 2. Pollution of the environment; [0006] 3. The construction process is complex, the site construction organization is complicated, and accidents are easily induced during construction. [0007] In order to e...

AI Technical Summary

Problems solved by technology

[0004] 1. After the foundation is processed by mechanical rolling, the strength can meet the requirements in a short time, but after a period of time, the foundation may sink and the bearing capacity is not enough;

[0005] 2. Pollution of the environment;

[0006] 3. The construction process is complicated, and the on-site construction organization is complicated, and accidents are easily induced during the construction period

It overcomes the existing complicated process, environmental pollution, insufficient backfill compactness, and uneven foundation settlement, which induce pipeline damage and water leakage

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