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Reinforced composite geotechnical cushion capable of preventing capillary barrier effect and manufacturing method thereof

A composite geotechnical and reinforcement technology, applied in geotextiles, excavation, soil protection, etc., can solve problems such as landslides, slope instability, and inability of rainwater to infiltrate

Active Publication Date: 2019-12-20
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under heavy rainfall conditions, a barrier of capillary air bubbles is often formed on the surface of the reinforced soil inner fabric layer, preventing rainwater from infiltrating, resulting in an increase in pore water pressure on the slope surface, resulting in slope instability or landslides.

Method used

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  • Reinforced composite geotechnical cushion capable of preventing capillary barrier effect and manufacturing method thereof
  • Reinforced composite geotechnical cushion capable of preventing capillary barrier effect and manufacturing method thereof

Examples

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Embodiment Construction

[0016] A reinforced composite geotechnical cushion for anti-capillary barriers, the overall structure of which includes three parts: a crushed stone silk layer, a hot-melt plastic silk layer, and a reinforced grid layer.

[0017] The crushed stone and silk layer in the structure 1) is made of crushed stone with a single particle size group mixed with rayon or natural hemp, which has strong water permeability, large pores, and small capillary action;

[0018] The hot-melt plastic filament layer 2) in the structure is a plate-shaped porous structure formed by spraying hot-melt plastic into filaments and cooling in a flat mold;

[0019] The reinforced grid layer 3) in the structure is a square grid structure, which is made of plastic with tensile strength. The warp and weft are interlaced to form a porous grid structure. The divided square cells have only four walls and no upper and lower bottoms. .

[0020] The manufacture method of the reinforced composite geotechnical cushion...

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Abstract

The invention provides a reinforced composite geotechnical cushion capable of preventing the capillary barrier effect and a manufacturing method thereof. The composite geotechnical cushion is formed by sandwiching a gravel and hemp thread layer, a hot-melt plastic wire layer and a reinforced grating layer. The reinforced composite geotechnical cushion is used in the side slope embankment filling anti-sliding reinforcement project and is particularly suitable for a side slope embankment filling project in a region with more rainwater in the south, the capillary barrier effect of infiltration rainwater at the reinforced layer can be remarkably reduced or eliminated, the infiltration speed of the rainwater can be increased, the seepage along the slope surface can be reduced, and the infiltration damage of soil mass can be avoided; and meanwhile, the composite geotechnical cushion can also improve the anti-sliding performance of the side slope soil mass and reduce the risk of landslide.

Description

technical field [0001] The invention relates to a reinforced composite geotechnical cushion for an anti-capillary barrier and a manufacturing method thereof. The composite geotechnical cushion is formed by sandwiching a crushed stone silk hemp layer, a hot-melt plastic silk layer and a reinforced grid layer. The reinforced composite geotechnical cushion is used in the anti-sliding reinforcement project of slope embankment filling, especially suitable for the slope embankment filling project in areas with more rain in the south, which can significantly reduce or eliminate the infiltration of rainwater in the reinforcement The capillary barrier effect at the top layer accelerates the speed of rainwater infiltration, reduces seepage along the slope, and avoids soil seepage damage. At the same time, the composite geotechnical cushion can also improve the anti-skid performance of the slope soil and reduce the risk of landslides. The invention belongs to the technical field of roc...

Claims

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Application Information

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IPC IPC(8): E02D3/00E02D17/20B29C65/02
CPCB29C65/02B29C66/45E02D3/005E02D17/202E02D2300/0084E02D2300/0089
Inventor 张飞周源高玉峰温友鹏陈延博舒爽王占彬周政
Owner HOHAI UNIV
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