Cold plateau earth and rockfill dam slope protection structure and construction method thereof

Abstract

The invention provides a cold plateau earth and rockfill dam slope protection structure. Three anti-frostbite swelling structures are arranged along a dam body and include a cast-in-place concrete structure paved at the dam bottom, a reinforced concrete wall structure poured and embedded at the position of a dam slope and a grouted rubble structure paved at the dam top; the reinforced concrete wall structure is a reinforced concrete wall body, reinforcing steel bars are embedded in the top of the reinforced concrete wall body, and a galvanized steel sheet is fixedly arranged on the surface of the top of the reinforced concrete wall body. The cold plateau earth and rockfill dam slope protection structure has the beneficial effects that the slope protection anti-frostbite swelling structures are optimized, and the anti-frostbite swelling effect is achieved through different structural manners; and compared with a conventional earth and rockfill dam anti-frostbite swelling structure, non-uniform frostbite swelling deformation is small, the ice pushing and ice pulling resistance capacity is high, and the anti-frostbite swelling effect is good. The invention further provides a construction method of the cold plateau earth and rockfill dam slope protection structure.

Description

technical field [0001] The invention relates to the field of water conservancy and hydropower engineering, and more specifically relates to a slope protection structure of an earth-rock dam in an alpine region and a construction method thereof. swelling effect. Background technique [0002] Frost heave failure of earth-rock dam slope protection is a common problem in water conservancy and hydropower projects in cold regions. The earth-rock dam slope protection will produce frost heave deformation and ice pull damage under the action of negative temperature in winter. In spring, the temperature rises to make it melt and cause thawing deformation. In spring, ice thrust is generated under the action of wind and waves. Earth-rock dam slope protection will cause damage. [0003] In the prior art, the anti-seepage and anti-frost heave structure is single, and the anti-frost heave effect is poor, and the slope protection of the earth-rock dam is damaged through repeated freezing ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the anti-seepage and anti-frost heave structure is single, and the anti-frost heave effect is poor. After repeated freezing and thawing, frost heaving, ice pushing and ice pulling, the slope protection of earth-rock dams will be damaged.

The anti-frost heave problem has not been solved fundamentally. After several freeze-thaw cycles and freezing damage, the earth-rock dam slope protection will be damaged by frost heave, which not only affects the operation efficiency of the reservoir but also increases the maintenance cost

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