Artificial lake bottom anti-seepage method based on novel composite anti-seepage layer

Abstract

The invention relates to an artificial lake bottom anti-seepage method based on a novel composite anti-seepage layer, wherein the method comprises the following steps: (1) making a lowermost layer bea plain soil compaction layer, wherein plain soil is undisturbed soil; (2) preparing the novel composite soil anti-seepage layer, paving the novel composite soil anti-seepage layer on the plain soil compaction layer, and performing mechanical compaction, wherein solid phase components for preparing the novel composite soil anti-seepage layer comprise dry clay, fly ash, river sand, stone powder anda small amount of industrial waste residues, and liquid phase components comprise a water plugging agent (polyacrylamide solution), a water glass solution, a calcium chloride solution and water; and(3) uniformly paving a planting soil covering layer on the novel composite soil anti-seepage layer. According to the method, a 'sandwich' anti-seepage method of the plain soil compaction layer, the novel composite soil anti-seepage layer and the planting soil covering layer is adopted; compared with a traditional method, construction operation is simpler, cost is lower, materials are more convenient to obtain, ecology is not destroyed, and the method has the advantages of being economical and environmentally friendly.

Description

technical field [0001] The invention relates to an anti-seepage method for an artificial lake bottom, in particular to an anti-seepage method for an artificial lake bottom based on a novel composite anti-seepage layer. Background technique [0002] When carrying out anti-seepage treatment of artificial lakes, the construction party usually adopts the method of laying geomembrane to completely block the infiltration waterproof layer structure. This method blocks the exchange of lake water and groundwater, destroys the ecological balance of the artificial lake, and causes pollution. Moreover, the service life of the geotextile is limited, and it will age after a few years, and its impermeability will decrease, so it must be replaced. Although clay has a certain anti-seepage effect, it is far from meeting the anti-seepage requirements of artificial lakes. The Chinese invention patent application "A Method for Ecological Waterproof and Seepage Reduction of Artificial Lakes in Sa...

AI Technical Summary

Problems solved by technology

[0002] When carrying out the anti-seepage treatment of artificial lakes, the construction party usually adopts the method of laying geomembrane to completely block the infiltration waterproof layer structure. This method blocks the exchange of lake water and groundwater, destroys the ecological balance of the artificial lake, and causes pollution.

Moreover, the service life of the geotextile is limited, and it will age after a few years, and its impermeability will decrease, so it must be replaced

Although clay has a certain anti-seepage effect, it is far from meeting the anti-seepage requirements of artificial lakes. The Chinese invention patent application "A Method for Ecological Waterproof and Seepage Reduction of Artificial Lakes in Saline-alkali Land" (application publication number is CN 108457241 A) uses In addition to the clay layer, the anti-seepage structure of the artificial lake also needs to have plain soil compaction layer, anti-slip soil solidification layer, geotextile layer (soil release is generally used for saline-alkali land) and planting soil cover layer

Although this method has played a very good role in waterproofing and reducing seepage, it has not played a very good role in reducing construction costs.

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