Seepage preventing construction structure and method

Abstract

The invention discloses a seepage preventing construction structure and method. The seepage preventing construction structure comprises a soil foundation, a waterproof layer and a surface soil covering layer, all of which are sequentially arranged from bottom to top. The waterproof layer comprises a first seepage preventing layer, a soil solidification layer and a second seepage preventing layer, all of which are sequentially arranged from bottom to top. The waterproof layer is composed of three layers of structures including the two seepage preventing layers and one soil solidification layer, the seepage preventing effect is greatly improved, the osmotic coefficient is smaller than 10<-10> cm / s, and the soil solidification layer is formed by solidification of bentonite, a fiber material, soil and water. The bentonite has the beneficial effects of being high in water absorbing expansion rate, high in expansion speed, resistant to ageing and corrosion, and the like; through adding of the fiber material, the anti-bending capability of the soil solidification layer can be improved as well; according to the seepage preventing technology, the seepage preventing effect is good, the external force impact and deformation resisting capability is high, the compressive strength is larger than 20 MPa, and meanwhile large equipment and a large number of materials are not needed during construction. Construction is simple and efficient, cost is low, and the seepage preventing construction structure and method are suitable for being applied to channel seepage preventing, contaminated site risk control, road pavement and other fields with the high seepage preventing requirement.

Description

technical field [0001] The invention relates to an anti-seepage construction structure and a method thereof. Background technique [0002] Seepage prevention refers to the construction of an anti-seepage layer on the soil surface to prevent liquid from penetrating into the soil. Specific applications include channel anti-seepage, contaminated site anti-seepage and other fields. At present, the main anti-seepage measures are as follows: [0003] 1) Soil material compaction anti-seepage measures: [0004] The core of soil compaction anti-seepage is to lay a layer of tightly compacted anti-seepage coating on the soil surface. The main raw materials involved in the construction of this anti-seepage layer include clay and sandy clay. Because the materials of the above two types of soil are relatively convenient, the cost of the entire soil compaction anti-seepage measure is low, but the effect obtained is extremely significant. It is also necessary to pay special attention to...

AI Technical Summary

Problems solved by technology

Especially for geomembrane, because of its outstanding advantages in terms of flexibility, tensile force, and extensibility, it can be used in anti-seepage applications. At the same time, due to the light texture of geomembrane, The material used per square meter is less, but this kind of anti-seepage measure has poor impact resistance, and it is easy to be damaged and the anti-seepage effect cannot be achieved.

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