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A construction method using soil solidification as road water stabilization layer

A construction method and technology for water stabilization, which are applied in the construction field using soil solidification as a road water stabilization layer, can solve the problems of high maintenance cost, high cost and high energy consumption in the later stage, and achieve high cost, low cost and high water consumption. good stability

Active Publication Date: 2020-06-19
GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention can greatly shorten the construction period of roadbed filling, ensure the quality of the project, improve the structural performance of the roadbed, improve the water stability of the roadbed, and prolong the service life of the road; it solves the problems of high cost, high energy consumption, and high later maintenance costs of the conventional method

Method used

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  • A construction method using soil solidification as road water stabilization layer

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0028] Such as figure 1 Shown, a kind of implementation method utilizing soil solidification as road water stability layer, comprises the following steps:

[0029] (1) Surface cleaning, pile driving, and line setting: pre-treat the base of the pre-filled roadbed to drain the water on the roadbed; release the middle pile of the roadbed on the base of the roadbed, and release the side piles according to the middle pile, And determine the toe line of the embankment located on both sides of the subgrade according to the wide filling size of the toe of the embankment, and clean up the area between the two toe lines; set side piles outside the edges of both sides of the paved layer, For hanging lines to control paving boundaries, marking thickness and elevation. Restoring the centerline on the subbase, old pavement or roadbed, set up one pile at 15m-20m for the straight line section, and one pile for the 10m-15m curve section.

[0030] (2) Soil preparation: Transport the construct...

Embodiment 2

[0038] The difference from Example 1 is that the soil curing agent consists of 30 parts of ionic surfactant, 20 parts of stabilizer, 10 parts of dispersant, 5 parts of water reducer, 5 parts of reinforcing agent, 10 parts of water-repellent agent, and 20 parts of water and other components. The mixing ratio is 90 parts of soil, 10 parts of cement, and 0.02 part of soil curing agent is added by external mixing.

[0039] The unconfined compressive strength of the obtained water-stable layer is 5.0Mpa, the bearing ratio is 52%, the water-stable strength coefficient is 1.10, and the freeze-thaw strength coefficient is 0.96.

Embodiment 3

[0041] The difference from Example 1 is that the soil curing agent consists of 20 parts of ionic surfactant, 10 parts of stabilizer, 20 parts of dispersant, 10 parts of water reducer, 10 parts of reinforcing agent, 10 parts of water repellent, and 20 parts of water and other components.

[0042] Mixing ratio: 96 parts of soil, 4 parts of cement, and 0.01 part of soil curing agent is added by external mixing.

[0043] The unconfined compressive strength of the obtained water-stable layer is 4.0Mpa, the bearing ratio is 50%, the water-stable strength coefficient is 1.08, and the freeze-thaw strength coefficient is 0.95.

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Abstract

The invention discloses an implementation method utilizing solidified soil as a road water-stabilized layer. The soil obtained by transporting construction waste soil to a construction site or scarifying the soil on the site by using a machine is used as a main body, a soil solidification agent and cement are doped to prepare solidified soil, and the solidified soil is paved on a roadbed and is then molded by rolling and solidified, thereby obtaining a base layer and a subbase layer with prominent water stability to replace the traditional roadbed layer. The road water-stabilized layer implemented by the method has the advantages of high strength, good water stability, good durability, strong frost resistance, low cost and the like, and the method is capable of shortening the construction period, ensuring the engineering quality, improving the structural performance of the roadbed, improving the water stability of the roadbed and prolonging the service life of the road; the problems of high cost, high energy consumption, high later maintenance cost and the like of the conventional method are solved; and meanwhile, a large amount of soil mass is used to effectively replace the traditional roadbed layer, so that resource and energy consumption and environmental pollution are reduced, and economic and social benefits are remarkable.

Description

technical field [0001] The invention relates to a road construction method, in particular to a construction method using solidified soil as a road water stability layer. Background technique [0002] According to the "China Construction Waste Recycling Industry Development Report (2014)" statistics, in recent years, the total annual construction waste discharge in China is about 1.55 to 2.4 billion tons, accounting for about 40% of urban waste. Mostly silt and muck. These figures are still increasing. In the past 10 years, the growth rate of the whole of China's silt and dregs can almost match the economic growth. The appearance of the city is changing so quickly that few people care about how the muck disappears and where it ends up. However, the construction of waste disposal sites in most cities is far behind the speed of waste generation, and at the same time faces the dilemma of multi-management, lack of supervision, and low reuse rate. In the end, the hidden disease...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C21/00E01C3/04C09K17/40C09K103/00
CPCC09K17/40C09K2103/00E01C3/04E01C21/00
Inventor 陈培鑫李建新王新祥费飞龙李晓琛陈耿
Owner GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD