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Method for processing steady hydraulic permeability concrete basal layer soil body

A technology of concrete base and treatment method, which is applied in soil protection, infrastructure engineering, construction, etc., and can solve the problem of taking away base soil, expansive soil, silt or sandy soil base subsidence, destroying permeable concrete surface, etc. problem, to achieve the effect of ensuring stability and uniform force

Inactive Publication Date: 2009-12-23
HONGQIJU CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the permeable concrete is used in expansive soil, silt or sandy soil layer, due to the discharge of water to the soil, the base soil will be taken away, causing the expansive soil, silt or sandy soil base to collapse, thereby destroying the Permeable Concrete Surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: A treatment method for stabilizing permeable concrete base soil

[0019] Specific steps are as follows:

[0020] First replace the 400mm thick soil layer on the top of the expansive soil soil foundation with clay, and then lay a layer of 200mm thick 1:9 lime soil on the clay layer. The 1:9 lime soil refers to white lime and soil. The volume ratio is 1:9, lay a layer of 200g / m2 in the lime soil layer 2 The width of the geotextile, lime soil and soil foundation treatment is 300mm on each side of the roadbed to form a stable layer, and finally a layer of permeable concrete with a thickness of 200mm is laid on the stable layer. The permeable concrete is a commonly used porous lightweight concrete prepared by mixing aggregate, cement and water.

Embodiment 2

[0021] Embodiment 2: A treatment method for stabilizing permeable concrete base soil

[0022] Specific steps are as follows:

[0023] First put the 500mm thick soil layer on the top of the silt soil foundation, use a general tamping machine to tamp the silt soil layer, and then lay a layer of 200mm thick 1:9 lime soil on it, the 1:9 Lime soil means that the volume ratio of lime to soil is 1:9, and a layer of 200g / m2 is laid in the lime soil layer. 2 The width of the geotextile, lime soil and soil foundation treatment is 300mm on each side of the roadbed to form a stable layer, and finally a layer of permeable concrete with a thickness of 200mm can be laid on the stable layer. The permeable concrete is composed of aggregate, cement A commonly used porous lightweight concrete mixed with water.

Embodiment 3

[0024] Embodiment 3: A treatment method for stabilizing permeable concrete base soil

[0025] Specific steps are as follows:

[0026] First replace the 300mm thick soil layer on the top of the sandy soil soil foundation with clay, and then lay a layer of 200mm thick 1:9 lime soil on the clay layer. The 1:9 lime soil refers to white ash and The volume ratio of the soil is 1:9, lay a layer of 200g / m2 in the lime soil layer 2 The width of the geotextile, lime soil and soil foundation treatment is 300mm on each side of the roadbed to form a stable layer, and finally a layer of permeable concrete with a thickness of 200mm can be laid on the stable layer. The permeable concrete is composed of aggregate, cement A commonly used porous lightweight concrete mixed with water.

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Abstract

The present invention discloses a method for treating the basal soil body of a stable water-permeating concrete. The treating method comprises the following procedures: firstly executing earth changing or tamping treating with clay soil to the soil layer with thickness 300-500mm on the top of the earth base of the earth body to be treated, then laying one layer of 1:9 lime earth with thickness 200-220mm whereon, laying one layer of 200g / m<2> geotextile in the lime earth with each side of the width subgrade processed by the lime earth and the earth base for 300mm to form a stable layer, and finally laying one layer of water-permeating concrete on the top of the stable layer. The stable earth body formed by the treating method of the invention effectively controls the water quantity permeating from the water-permeating concrete for not taking the lower earth body away and causing the subsiding of the base earth. Besides, the formed stable earth body can lead to the uniform applied force of the lower earth body and guarantees the stability of the base soil body of the water-permeating concrete.

Description

1. Technical field: [0001] The invention relates to a treatment method for stabilizing base soil, in particular to a treatment method for stabilizing permeable concrete base soil. 2. Background technology: [0002] At present, the commonly used permeable concrete is a kind of porous lightweight concrete mixed with aggregate, cement and water. Groundwater resources are replenished in time and soil moisture is maintained. Research and development of this concrete as an environmental load-reducing concrete, and water-permeable concrete are attracting more and more attention. [0003] However, when the permeable concrete is used in expansive soil, silt or sandy soil layer, due to the discharge of water to the soil, the base soil will be taken away, causing the expansive soil, silt or sandy soil base to collapse, thereby destroying the Permeable concrete surface. [0004] In order to overcome the subsidence that occurs when permeable concrete is used in expansive soil, silt or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00
Inventor 郝卫增佘如春常佩顺
Owner HONGQIJU CONSTR GRP CO LTD