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Tube slot backfilling structure for existing road and construction method thereof

A construction method and pavement structure technology, applied in infrastructure engineering, excavation, construction, etc., can solve the problems of pipeline cracking, sand leakage, insufficient compaction, etc., and achieve the effect of simple structure and good driving safety

Pending Publication Date: 2018-11-16
FUZHOU MEIJIA ENVIRONMENTAL PROTECTION RESOURCE DEV +2
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  • Abstract
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Problems solved by technology

[0006] The present invention makes improvements to the problems existing in the above-mentioned prior art. That is, the technical problem to be solved by the present invention is to provide an existing road pipe groove backfill structure and its construction method. Insufficient solidity problem

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  • Tube slot backfilling structure for existing road and construction method thereof

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, the present invention is an existing road pipe groove backfill structure, including a pipe groove 1 and a pavement structure layer 2 laid on the upper side of the pipe groove 1, and the pipe groove 1 is sequentially backfilled with the first filler layer from bottom to top 3 and the second packing layer 4, the first packing layer 3 is foamed concrete or domestic waste incineration slag mixture; the second backfill layer 4 is domestic waste incineration slag mixture; the bottom surface of the base layer of the pavement structure layer 2 A geogrid 5 is laid at 201 , and the geogrid 5 is in contact with the top surface of the second packing layer 4 . By setting two layers of filler and geogrid, the overall structural strength can be made high, and the gelation characteristics of domestic waste incinerat...

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Abstract

The invention relates to a tube slot backfilling structure for an existing road and a construction method thereof. The tube slot backfilling structure comprises a tube slot and a pavement structure layer laid on the upper side of the tube slot, and a first packing layer and a second packing layer are backfilled in the tube slot from bottom to top in sequence. The first packing layer is foamed concrete or a mixture of domestic refuse and incineration bottom ash, and the second packing layer is the mixture of domestic refuse and incineration bottom ash. Geogrids are laid on the bottom surface ofthe base of the pavement structure layer. The tube slot backfilling structure is simple and reasonable and can avoid the sand leakage problem caused by pipe rupture. Moreover, the structure has highstrength, so that the road is less prone to longitudinal slits and subsidence and has good traffic safety.

Description

Technical field: [0001] The invention relates to an existing road pipe groove backfill structure and a construction method thereof. Background technique: [0002] In order to meet the rapid development of urban economy, urban roads need to add pipelines. Therefore, there is a large amount of pipeline excavation and backfilling work for existing urban roads. Pipe groove backfilling is an important task in laying pipelines on existing roads. The quality of the pipe groove is directly related to the smoothness and comfort of the road surface. The general procedure for backfilling the traditional pipe groove is to backfill the sand after the pipeline construction is completed, then use a road roller to roll it layer by layer to the top surface of the subgrade, and finally pave the pavement structure layer. However, this approach mainly has the following problems: [0003] (1) Due to the aging and cracking of pipelines, sand leakage occurs, resulting in road surface subsidenc...

Claims

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Application Information

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IPC IPC(8): E02D17/12
CPCE02D17/12
Inventor 傅大宝吴将金许新华林秋生李玉华
Owner FUZHOU MEIJIA ENVIRONMENTAL PROTECTION RESOURCE DEV
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