A horizontal sliding anti-seepage connection structure between geomembrane and asphalt concrete panel

Abstract

The invention discloses a horizontal sliding anti-seepage connection structure between a geomembrane and an asphalt concrete panel, which belongs to the field of water conservancy and hydropower engineering. The geomembrane of the present invention and the asphalt concrete panel are overlapped through a reinforced concrete connecting plate, and a horizontal sliding plastic water-stop material is arranged between the asphalt concrete panel and the reinforced concrete connecting plate, so that the anti-seepage joint can slide horizontally, and at the same time The contact part between the geomembrane and the reinforced concrete connecting plate is provided with an overfilled bulge to reduce the "clamp effect" caused by the local stress concentration of the geomembrane and ensure the reliability of the seepage prevention of the lap joint of the geomembrane.

Description

technical field [0001] The invention relates to the field of water conservancy and hydropower engineering, in particular to a horizontal sliding anti-seepage connection structure of a geomembrane and an asphalt concrete panel. Background technique [0002] With the continuous advancement of my country's ecological civilization construction, water problems such as water resources, water ecology, and water environment have been greatly improved, but the treatment of water resources utilization, sewage anti-seepage and other issues is still the direction of our continuous research. For some reservoirs, pumped-storage power stations, landfills and other projects with shortage of water resources or small runoff, the anti-seepage requirements are very high, and the anti-seepage type of the whole reservoir basin is often considered. The permeability coefficient of asphalt concrete panels and geomembrane is generally less than 10 -8 cm / s is even smaller, because of its good anti-se...

AI Technical Summary

Problems solved by technology

[0004] Although some folds are reserved for the geomembrane and the anchorage part in the conventional design, the purpose is to hope that the folds can expand and contract to offset the tensile strain of the geomembrane, but under the action of hydraulic pressure, the geomembrane is close to the foundation surface, and the geomembrane folds Hardly stretchable, it is difficult to achieve the purpose of adapting to the deformation at the joint

Therefore, the joints of the geomembrane often have a "clamp effect" due to excessive local deformation, so that the geomembrane is partially cracked and a concentrated leakage channel is formed, which affects the safety of the dam.

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