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Construction method based on geonet reinforced subgrade

A construction method and geonet technology, applied in basic structural engineering, botanical equipment and methods, excavation, etc., can solve the problems of unable soil reinforcement, structural stability degradation, slope protection damage, etc., to improve the overall resistance Shear strength and equilibrium settlement, simple construction, improved friction effect

Inactive Publication Date: 2018-04-10
合肥华福土工合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plastic geogrid has simple process and low cost, but it will show serious creep after long-term use, resulting in the degradation of structural stability
Fabric geogrid has good performance and strong creep resistance, but the process is cumbersome and expensive
At present, the main problem of geogrid used in road embankment is: the horizontally arranged grid is easy to move horizontally in the soil, and cannot effectively reinforce the soil. After the road has been in operation for a long time, it is not the grid that is broken. That is, the grille is pulled out of the subgrade, causing secondary damage to the slope protection

Method used

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Effect test

Embodiment 1

[0037] see Figure 1-2 , the present invention provides a technical solution:

[0038] A construction method based on geonetwork reinforced roadbed. The geogrid network is made of high-strength and high-modulus polyvinyl chloride polymer vertically and horizontally. The outer layer of the grid is covered with a modified rubber coating, and the rubber is mixed with anti-aging agent and antioxidant. And light shielding agent and other masterbatches, the geogrid mesh is circular, there are double-sided reinforcing columns at the joints of the geogrid ribs, the length of one side is about 3.5cm, and the surface of the vertical and horizontal ribs of the grid has ring-shaped embossed threads .

[0039] In the present embodiment, the construction method of the geonet reinforced subgrade comprises the following steps:

[0040] 1) After laying 30cm thick compacted soil on the original ground, lay the geogrid on the embankment, and overlay the road shoulder by not less than 1.8m for ...

Embodiment 2

[0047] A construction method based on geonetwork reinforced roadbed. The geogrid network is made of high-strength and high-modulus polyvinyl chloride polymer vertically and horizontally. The outer layer of the grid is covered with a modified rubber coating, and the rubber is mixed with anti-aging agent and antioxidant. And light shielding agent and other masterbatches, the geogrid mesh is circular, there are double-sided reinforcing columns at the joints of the geogrid ribs, the length of one side is about 3.5cm, and the surface of the vertical and horizontal ribs of the grid has ring-shaped embossed threads .

[0048] In the present embodiment, the construction method of the geonet reinforced subgrade comprises the following steps:

[0049] After laying 35cm thick compacted soil on the original ground, pave geogrid on the embankment, overlaying the road shoulder by not less than 2.0m, for backpacking;

[0050] 2) The overlapping length between the grids along the driving dir...

Embodiment 3

[0056] A construction method based on geonetwork reinforced roadbed. The geogrid network is made of high-strength and high-modulus polyvinyl chloride polymer vertically and horizontally. The outer layer of the grid is covered with a modified rubber coating, and the rubber is mixed with anti-aging agent and antioxidant. And light shielding agent and other masterbatches, the geogrid mesh is circular, there are double-sided reinforcing columns at the joints of the geogrid ribs, the length of one side is about 3.5cm, and the surface of the vertical and horizontal ribs of the grid has ring-shaped embossed threads .

[0057] In the present embodiment, the construction method of the geonet reinforced subgrade comprises the following steps:

[0058] 1) After laying 40cm thick compacted soil on the original ground, lay the geogrid on the embankment, and overlay the road shoulder by not less than 3.0m for backpacking;

[0059] 2) The overlapping length between the grids along the drivi...

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Abstract

The invention relates to the technical field of highway roadbed construction, in particular to a construction method based on geonet reinforced roadbed, the geogrid network is made of high-strength and high-modulus polyvinyl chloride polymer vertically and horizontally, and the outer layer of the grid is covered with modified Rubber coating, the rubber is mixed with anti-aging agent, antioxidant and light shielding agent and other masterbatches, the mesh of the geogrid is circular, and there are double-sided reinforcement columns at the joints of the geogrid ribs, and the length of one side is about 3.5cm , There are ring-shaped embossed threads on the surface of the longitudinal and transverse ribs of the grille. In the present invention, the high-strength and high-modulus polyvinyl chloride polymer material has high strength, the outer layer is coated with modified rubber, the creep is small, and it has the properties of high tensile strength and low tensile strain.

Description

technical field [0001] The invention relates to the technical field of highway subgrade construction, in particular to a construction method based on geonet reinforced subgrade. Background technique [0002] In the construction of highway subgrade, slope protection, and dam engineering, the method of adding geosynthetics to the soil is often used, such as geogrid. Through the embedded anchorage of the grid and the soil block and the friction between the grid and the soil, the strength of the soil can be enhanced and the purpose of balanced settlement can be achieved, especially widely used in road subgrades. High-strength polymer geogrids equipped with longitudinal and transverse ribs and hole structures are applied to civil engineering such as highway and railway subgrades, slope anti-seepage and landslides, and river embankment revetment, which increases the life of the project. At present, geogrids can be divided into plastic grids and fabric grids. The plastic geogrid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E02D17/20E02B3/12A01G22/00
CPCE01C3/00E02B3/122E02D17/202
Inventor 武全福
Owner 合肥华福土工合成材料有限公司
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