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Construction method for water-permeable and water-retaining water-permeable pavement structure

A technology of permeable pavement and construction method, applied in the direction of roads, roads, road repair, etc., can solve the problems that permeable pavement structure is difficult to achieve permeable effect, natural precipitation cannot naturally penetrate into the ground, and pavement structure is impermeable, etc., and achieves high water permeability. Features High water retention performance, avoiding energy problems, and the effect of large porosity

Inactive Publication Date: 2015-09-02
SHENZHEN HUAWEI ENVIRONMENTAL PROTECTION BUILDINGMATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing pavement structure is generally paved with asphalt or concrete and other materials. The pavement structure is impermeable, so that natural precipitation cannot naturally infiltrate into the ground. It lacks the regulation of urban surface temperature and humidity, resulting in the so-called "heat island effect".
[0003] Due to the lack of a complete permeable structure system, it is difficult for ordinary permeable pavement structures to achieve the ideal permeable effect. Sand and gravel resources in large and super-large cities are already seriously in short supply

Method used

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  • Construction method for water-permeable and water-retaining water-permeable pavement structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A construction method of a water-permeable and water-retaining permeable pavement structure, comprising the following steps:

[0041] Subgrade excavation: According to the design requirements, excavate the subgrade, clean up the earthwork, and reach the design elevation; check the longitudinal slope, transverse slope and sideline; repair the subgrade, level and roll it compactly, and the compaction coefficient can reach more than 95%;

[0042] Cushion laying: Lay 60mm thick regenerated sand on the excavated subgrade; it is required that the accumulated sieve allowance of regenerated sand passing through the 5.0mm sieve hole should not exceed 5%, the content of fine powder should be less than 5%, and the content of mud block should be less than 2 %, the moisture content should be less than 3%, and compacted, the compaction coefficient should be above 95%;

[0043] Base laying: Lay graded recycled coarse aggregate with a particle size of 5-63mm on the top of the cushion a...

Embodiment 2

[0051] A construction method of a water-permeable and water-retaining permeable pavement structure, comprising the following steps:

[0052] Subgrade excavation: according to the design requirements, excavate the subgrade, clear the earthwork, and reach the design elevation; check the longitudinal slope, transverse slope and sideline; repair the subgrade, level and compact the compaction coefficient to over 95%, and pay attention to underground burial the pipeline;

[0053] Cushion laying: Lay the lime-soil mixture as a cushion on the excavated roadbed. The mass ratio of lime to soil in the lime-soil is 0.12:1. After laying, it is leveled and compacted. 120mm;

[0054] Laying of waterproof layer: Lay a waterproof layer on the cushion layer. The waterproof layer is laid with non-permeable geotextile or geomembrane, so that the water that penetrates from the surface layer to the base layer will flow through the slope designed on the base layer on the surface of the impermeable ...

Embodiment 3

[0063] A construction method of a water-permeable and water-retaining permeable pavement structure, comprising the following steps:

[0064] Subgrade excavation: according to the design requirements, excavate the subgrade, clear the earthwork, and reach the design elevation; check the longitudinal slope, transverse slope and sideline; repair the subgrade, level and compact the compaction coefficient to over 95%, and pay attention to underground burial the pipeline;

[0065] Cushion laying: Lay the lime-soil mixture as a cushion on the excavated roadbed. The mass ratio of lime to soil in the lime-soil is 0.12:1. After laying, it is leveled and compacted. 150mm;

[0066] Laying of the waterproof layer: Lay the waterproof layer on the cushion layer. The waterproof layer is laid with cement mortar with a thickness of 30mm. The mass ratio of the cement or cementitious material in the cement mortar to the sand is 1:3; Troweling, let the water infiltrated by the surface layer flow ...

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Abstract

The invention discloses a construction method for a water-permeable and water-retaining water-permeable pavement structure. The method comprises the steps of carrying out roadbed excavation, carrying out cushion laying, carrying out base course laying, carrying out leveling layer laying, carrying out surface layer laying and carrying out joint sand laying. According to the method, the process is simple, and the water-permeable pavement structure with high water permeability and high water retention is obtained through processing construction waste into recycled aggregate and constructing, so that the problem of construction waste disposal is solved, a great deal of building materials can be provided, meanwhile, energy problem, environmental problem and social problem resulting from the exploitation of natural stone resources are avoided, and thus the method is a multipurpose measure; particularly, the water-permeable pavement structure plays an important role in adjusting the humiture of urban ground surface due to high water permeability and high water retention.

Description

technical field [0001] The invention relates to the technical field of pavement construction, in particular to a construction method for a permeable pavement structure with high water permeability and high water retention performance. Background technique [0002] The existing pavement structure is generally paved with asphalt or concrete and other materials. The pavement structure is impermeable, so that natural precipitation cannot naturally infiltrate into the ground. It lacks the regulation of urban surface temperature and humidity, resulting in the so-called "heat island effect". [0003] Due to the lack of a complete permeable structure system, it is difficult for ordinary permeable pavement structures to achieve the ideal permeable effect. Sand and gravel resources in large and super-large cities are already seriously in short supply. At the same time, with the development of urbanization, the discharge of construction waste in engineering construction has increased ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C21/00E01C3/04E01C3/06E01C11/22
Inventor 陈为武杨正松关宇李文龙陆启政欧小凡
Owner SHENZHEN HUAWEI ENVIRONMENTAL PROTECTION BUILDINGMATERIAL
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