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A kind of air-permeable SAP coating composite material and its manufacturing method for preventing slope infiltration

A composite material and coating technology, applied in coating, chemical instruments and methods, excavation, etc., can solve problems such as slump, slope instability, and inability of rainwater to infiltrate.

Active Publication Date: 2021-04-13
HOHAI UNIV
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  • Summary
  • 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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  • A kind of air-permeable SAP coating composite material and its manufacturing method for preventing slope infiltration
  • A kind of air-permeable SAP coating composite material and its manufacturing method for preventing slope infiltration

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] A breathable sap-coated composite material that prevents slope infiltration. Its overall structure includes three parts: sap-coated honeycomb grid, three-dimensional separation layer, and reinforced permeable layer.

[0019] The SAP-coated honeycomb grid 1 in the structure is formed by spraying SAP superabsorbent resin material on each inner surface of the honeycomb plastic grid. When encountering moisture, the SAP superabsorbent resin expands to block and close the honeycomb channel , unable to pass through the water flow, when the environment is dry, the sap superabsorbent resin shrinks, and the sap coated honeycomb grid 1 opens the water passage;

[0020] The three-dimensional separation layer 2 in the structure is a plastic grid structure with a certain thickness, which separates two adjacent sap-coated honeycomb grids 1;

[0021] The reinforced permeable layer 3 in the structure is a square grid structure, which is made of plastic with tensile strength. The warp an...

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Abstract

The invention provides an air-permeable sap coating composite material for preventing slope infiltration and a manufacturing method thereof. The sap-coated composite material is composed of a sap-coated honeycomb grid, a three-dimensional separation layer, and a reinforced permeable layer. The sap coating composite material is used in the surface waterproofing project of slope embankment filling, especially suitable for slope embankment filling projects in areas with a lot of rain in the south, which can significantly reduce or eliminate the infiltration of seepage rainwater on the slope embankment Destruction, speed up the discharge of rainwater from the surface of the slope embankment, reduce the downward seepage along the slope, and avoid soil seepage damage. In fine weather, the sap coating composite material can also shrink and open the honeycomb ventilation holes to discharge the rainwater in the slope embankment Excess moisture. At the same time, the sap coating composite material can also improve the anti-skid performance of the slope soil and reduce the risk of landslides.

Description

technical field [0001] The invention relates to an air-permeable SAP coating composite material for preventing slope infiltration and a manufacturing method thereof. The sap-coated composite material is composed of a sap-coated honeycomb grid, a three-dimensional separation layer, and a reinforced permeable layer. The sap coating composite material is used in the surface waterproofing project of slope embankment filling, especially suitable for slope embankment filling projects in areas with a lot of rain in the south, which can significantly reduce or eliminate the infiltration of seepage rainwater on the slope embankment Destruction, speed up the discharge of rainwater from the surface of the slope embankment, reduce the downward seepage along the slope, and avoid soil seepage damage. In fine weather, the sap coating composite material can also shrink and open the honeycomb ventilation holes to discharge the rainwater in the slope embankment Excess moisture. At the same ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20B32B3/12B32B3/24B32B27/06B32B33/00B32B7/08
CPCB32B3/12B32B3/266B32B7/08B32B2255/26B32B2307/7265B32B2419/00E02D17/20
Inventor 张飞周源高玉峰何乃福陈延博舒爽王占彬戴光宇
Owner HOHAI UNIV
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