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External-separation and internal-discharge type weak expansive soil surface slope treatment device and construction method thereof

A weak expansion and slope technology, applied to water supply devices, excavation, drainage structures, etc., can solve the problem that the rapid discharge of groundwater in the anti-seepage slope of atmospheric precipitation cannot be guaranteed, so as to prevent soil erosion, improve stability, reduce fluctuations and The effect of expansion and contraction

Pending Publication Date: 2021-06-25
CHANGJIANG SURVEY PLANNING DESIGN & RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conventional soil slope support is generally treated with lattice concrete + turf slope protection, but this measure cannot guarantee the anti-seepage of atmospheric precipitation and the rapid discharge of groundwater in the slope

Method used

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  • External-separation and internal-discharge type weak expansive soil surface slope treatment device and construction method thereof
  • External-separation and internal-discharge type weak expansive soil surface slope treatment device and construction method thereof
  • External-separation and internal-discharge type weak expansive soil surface slope treatment device and construction method thereof

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Embodiment Construction

[0032] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.

[0033] Referring to the accompanying drawings, it can be seen that the surface slope treatment device for weakly expansive soil with outer compartment and inner row type includes a weak expansive soil layer 1, and is characterized in that: it also includes an internal drainage layer 2 located above the weak expansive soil layer 1, located in the internal drainage layer 2 External displacement layer 3 above;

[0034] The internal drainage layer 2 includes a drainage blind ditch 21 above the weak expansive soil layer 1, and a drainage pipe 22 connected to the end of the drainage blind ditch 21;

[0035] The external replacement layer...

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Abstract

The invention discloses an external-separation and internal-discharge type weak expansive soil surface slope treatment device, and relates to the field of slope treatment of projects such as water conservancy, roads and bridges. The device comprises a weak expansive soil layer, an internal drainage layer and an external replacement layer; the internal drainage layer comprises a drainage blind ditch and a drainage pipe; and the external replacement layer comprises a weak expansive soil step layer and a cement modified soil layer. According to the external replacement layer, surface expansive soil of a slope body is replaced and filled with non-expansive clay with a certain thickness, so that the water content of the lower expansive soil body is not violently changed, construction is simple, operation is easy, and the effect is good. The invention further relates to a construction method of the external-separation and internal-discharge type weak expansive soil surface slope treatment device.

Description

technical field [0001] The invention relates to the field of slope treatment of water conservancy projects, highways, bridges and the like, and more specifically relates to an outer compartment and inner row type weak expansive soil surface slope treatment device. The invention also relates to a construction method of the outer compartment and inner row type weak expansive soil surface slope treatment device. Background technique [0002] Dehydration cracking and water swelling are the most important characteristics of expansive soils, and they are also important causes of landslides in the surface layer (1-3m) of expansive soil slopes. These characteristics are mainly controlled by the moisture state in the soil. When the moisture in the expansive soil changes alternately, the expansive soil will repeatedly undergo dry shrinkage cracking and wet expansion deformation, which will lead to the loosening of the expansive soil mass and eventually cause deformation and failure of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/12E02D17/20E03F5/04E02D3/10
CPCE02B3/12E02D17/20E03F5/04E02D3/10Y02A30/60
Inventor 王汉辉邹德兵颜天佑闫福根王磊张国强李子康冷星火宁昕扬谭海
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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