Recyclable double-layer capillary isolation structure
An isolation structure and capillary technology, which is applied in infrastructure engineering, soil protection, drainage structures, etc., can solve the problem that the effect of the capillary isolation structure is difficult to recover, and achieve the effect of restoring the capillary isolation effect.
Inactive Publication Date: 2021-10-26
YUNNAN AGRICULTURAL UNIVERSITY
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Problems solved by technology
That is: water penetrates into the coarse-grained soil layer, and when the water penetrates into the coarse-grained soil layer, the effect of the capillary isolation structure is difficult to restore
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[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0028] Examples, see Figure 1-3 , a recyclable double-layer capillary isolation structure, including a base layer 1, the base layer 1 is the bottom of a landfill, the farmland in an arid area or the slope of a side slope, and corresponding adjustments are made according to different usage scenarios. The base layer 1 A layer of hydrophilic coarse-grained soil layer 2, a layer of hydrophilic non-cohesive soil layer 3, a layer of water-repellent non-cohesive soil layer 4 and a layer of overlying soil layer 5 are laid sequentially from bottom to top. The minimum particle size of the soil layer 2 must be at least 5 times larger than the maximum particle size of the hydrophilic non-cohesive soil layer 3, and the hydrophilic coarse-grained soil layer 2 and the water-repellent non-cohesive soil layer 4 are all made of non-cohesive soil. It is prepared by mixing 0.0...
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The invention discloses a recyclable double-layer capillary isolation structure, The recyclable double-layer capillary isolation structure comprises a base layer, a hydrophilic coarse-grained soil layer, a hydrophilic non-cohesive soil layer, a water-repellent non-cohesive soil layer and an overburden layer are sequentially laid on the surface of the base layer from bottom to top, a plurality of drainage pipes are transversely distributed on the surface of the base layer, the drainage pipes are arranged along the base layer from top to bottom, the lower ends of the drainage pipes are open, each drainage pipe is located below the overburden layer and cuts the hydrophilic coarse-grained soil layer, the hydrophilic non-cohesive soil layer and the water-repellent non-cohesive soil layer, and a plurality of water seepage holes are formed in the two sides, making contact with the hydrophilic coarse-grained soil layer, the hydrophilic non-cohesive soil layer and the water-repellent non-cohesive soil layer, of each drainage pipe, and an electric heating pipe is arranged in the water-repellent non-cohesive soil layer between every two drainage pipes. According to the recyclable double-layer capillary isolation structure, water is prevented from seeping into the base layer in a double-layer isolation mode, the isolation effect is good, after a capillary isolation system loses efficacy, the isolation effect can be recovered through water evaporation.
Description
technical field [0001] The invention relates to the technical field of water and soil engineering, in particular to a recyclable double-layer capillary isolation structure. Background technique [0002] In landfills, in order to prevent the spread of pollutants, a capillary barrier is often set at the bottom of the waste. Farmland in arid areas, in order to better preserve water, will also use hair suction isolation belts to prevent rainwater from seeping down. In slope engineering, if rainfall infiltrates into the soil, it will change the soil from an unsaturated state to a saturated state, reducing the shear strength of the soil, thereby increasing the possibility of landslides. For this reason, it can be set on the surface of the slope Capillary barriers prevent rainwater from seeping in. Compared with traditional anti-seepage materials (geomembrane, polymer, etc.), the capillary isolation belt is firstly cheaper to manufacture, and secondly, there is no problem of mate...
Claims
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IPC IPC(8): E02D17/20E02D3/10E03F3/04E02D31/02E03F5/10H02J7/35
CPCE02D17/20E02D3/10E03F3/04E02D31/02E03F5/101E03F5/105H02J7/35
Inventor 杨松吴玉琴
Owner YUNNAN AGRICULTURAL UNIVERSITY