Wave consumption revetment structure for earth and rockfill dam reinforcing projects

Abstract

The invention discloses a wave consumption revetment structure for earth and rockfill dam reinforcing projects. An original upstream revetment (2) is arranged on a dam body (1), when the height of thedam body (1) is less than 0.5 meter, a newly-constructed step-type revetment (6) is arranged on the side, close to an original dam crest pavement (4), of the original upstream revetment (2), and a sand gravel cushion layer (8) is arranged between the newly-constructed step-type revetment (6) and the dam body (1); an original wave prevention wall (3) is arranged on one side of the original dam crest pavement (4), the original wave prevention wall (3) is located between the newly-constructed step-type revetment (6) and the original dam crest pavement (4), and the newly-constructed step-type revetment (6) is located above the normal water storage level. The structure overcomes the defect in the prior art that the wave consumption effect is not significant and has the advantages that an existing dam slope does not need to be dismantled, the cost is low, and the construction quality is ensured.

Description

technical field [0001] The invention relates to an earth-rock dam danger-removing and reinforcing project, and more specifically relates to a wave-eliminating and slope-protecting structure for an earth-rock dam reinforcing project. Background technique [0002] After the founding of the People's Republic of my country, a large number of earth-rock dams were built in our country. When the dams are reviewed according to the requirements of the current regulations, there are often problems with the height of the dams. [0003] The reinforcement schemes for the under-height of the earth-rockfill dam mainly include: ①The heightening of the dam body is mainly to increase the height of the dam crest and slope training for the dam slope. However, it is difficult to construct the slope. It is difficult to compact the slope body, and the stability is difficult to guarantee; ②Newly build or increase the height of the anti-wave wall, the height of this method is limited, if the height ...

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Problems solved by technology

[0004] At present, the slope protection methods of earth-rock dams mainly adopt the following methods: ① Traditional slope protection forms such as cast-in-place concrete, mortar masonry, and dry stone slope protection are convenient for construction, but the wave dissipation effect is not obvious; The method is simple and economical in construction, but the effect of wave dissipation is not ideal. The throwing and filling rocks are easily washed away by waves, and will affect the stability of the dam slope; ③ concrete prefabricated blocks for wave dissipation. Special-shaped blocks, such as Twisted King blocks, Twisted I-shaped blocks, etc., this method has a better wave dissipation effect, but this method requires relatively high manufacturing and laying process requirements, and the cost is relatively high; ④ Platform wave dissipation, the effect of this method Well, it can effectively reduce the wave climbing and reduce the dam crest elevation, but setting up a wave-dissipating platform on the upstream dam slope will increase the amount of earthwork filling and the cost will be higher;

This method can prevent or reduce waves over the top, especially the anti-arc wave wall has a good wave dissipation effect, but the wave impact force on the wave wall is relatively large, which is not conducive to the stability of the wave wall; ⑥The slope of the dam Roughening, this method increases the roughness of the slope to break the waves, reduce the wave climbing, and have a better wave dissipation effect

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