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Shallow-surface water control protective covering system for expansive soil slope with capillary suction structure

An expansive soil and capillary technology, applied in infrastructure engineering, construction, excavation, etc., can solve problems such as uneven slopes, water intrusion in expansive soil slopes, etc., and achieve low maintenance costs, good drainage capacity, and good growth conditional effect

Active Publication Date: 2022-04-08
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The technical problem to be solved by the present invention is the problem of water intrusion and uneven slope of expansive soil slope

Method used

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  • Shallow-surface water control protective covering system for expansive soil slope with capillary suction structure
  • Shallow-surface water control protective covering system for expansive soil slope with capillary suction structure
  • Shallow-surface water control protective covering system for expansive soil slope with capillary suction structure

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0035] figure 1 It is a schematic diagram of the use status of the coverage system of the present invention, figure 2 It is a structure expansion diagram of the covering system of the present invention, image 3 It is a side sectional view of the covering system of the present invention.

[0036] Depend on figure 1 , figure 2 , image 3 Visible, the present invention a kind of expansive soil slope shallow-surface water control protective cover system with capillary suction structure, this system is followed by vegetation layer 1, fine-grained layer 2, capillary suction layer 3 and coarse-grained layer from top to bottom. The layer 4 and the coarse-grained layer 4 evenly cover the slope surface of the side slope 5 , and a drain 6 is provided at the contact position between the foot of the slope 5 and the coarse-grained la...

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Abstract

The invention discloses an expansive soil slope shallow-surface water control protection covering system with capillary guide grooves, which belongs to the field of geotechnical engineering and geological engineering. From top to bottom, the system consists of vegetation layer, fine-grained layer, suction layer, and coarse-grained layer. In this system, the moisture control of the shallow-surface layer of the expansive soil slope depends on the capillary barrier layer composed of the fine-grained layer and the coarse-grained layer, and the capillary drainage grooves that are uniformly covered along the slope and vertically distributed in sections. The present invention adopts blocking, storage, and drainage methods to control the shallow-surface moisture of the slope body during rainfall, prevents rainfall from seeping into the slope soil, improves the hydrophobic capacity of the traditional capillary blocking covering layer, and reduces the impact of precipitation infiltration on slope stability. It can enhance the overall stability of the slope and reduce the impact of the dry-wet cycle on the expansive soil slope, and has the characteristics of good protection effect, good durability and low cost.

Description

technical field [0001] The invention relates to an expansive soil slope shallow-surface water control protection covering system with a capillary suction structure, which belongs to the field of geotechnical engineering and geological engineering. Background technique [0002] Slope instability will lead to serious engineering accidents such as landslides. Compared with ordinary slopes, expansive soil slopes have the characteristics of shallowness, traction, seasonality, and gentleness. According to Document 1 "On the Influence of Cracks on Expansive Soil Slope Stability [J]" (Yin Zongze, Yuan Junping, Wei Jie, Cao Xueshan, Liu Huaqiang, Xu Bin. Journal of Geotechnical Engineering, 2012,34(12):2155- 2161.) research, in engineering, when the strength of the slope design is reached, landslide hazards still sometimes occur on expansive soil slopes. The reason for these phenomena is that expansive soil is expansive. When the water content of expansive soil changes, the shear st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20
Inventor 查甫生胡盛涛孙献国许龙康博
Owner HEFEI UNIV OF TECH