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Earthquake resistant structure of high earth-rock dam in earthquake region

A technology for high earth-rock dams and earthquake-resistant structures, applied in dams, barrages, water conservancy projects, etc., can solve the problems of complex construction, large construction interference, poor durability, etc., and achieve the effect of improving earthquake resistance, ensuring construction progress, and enhancing integrity.

Inactive Publication Date: 2013-02-06
POWERCHINA HUADONG ENG COPORATION LTD
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an integral anti-seismic structure of high earth-rock dam in the earthquake area in view of the above-mentioned problems, so as to exert the overall anti-seismic effect and improve the anti-seismic ability, and at the same time solve the problem of poor material durability and complicated construction in the prior art , construction interference defects

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  • Earthquake resistant structure of high earth-rock dam in earthquake region
  • Earthquake resistant structure of high earth-rock dam in earthquake region

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Embodiment Construction

[0017] Such as figure 1 , figure 2 As shown, since the earth-rock dam body is composed of rockfill and rolled, the upper dam slope near the dam crest is extremely vulnerable to earthquake damage. Therefore, earth-rock dams in strong earthquake areas need to take certain anti-seismic measures to avoid damage to the dam slope . In this embodiment, in the upper rockfill body 1 of the dam body, an anchor body 2 is laid every 4.8m elevation along with the filling process of the dam body, and each anchor body 2 is evenly connected with a group of horizontal and parallel seismic cables 3 , the other end of the anti-seismic cable is connected to the slope protection layer 4 on the surface of the dam slope, thereby forming an integral anti-seismic structure.

[0018] In order to avoid interference with the rockfill filling of the dam body, the anchor body 2 in this embodiment is a prefabricated C25 concrete beam arranged horizontally, and is 20-30m away from the dam slope (that is, ...

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Abstract

The invention relates to an earthquake resistant structure of a high earth-rock dam in an earthquake region. The invention is to provide an integral type earthquake resistant structure of the high earth-rock dam in the earthquake region, so as to give play to an integral earthquake resistant effect, enhance earthquake resistance and solve defects of poor material durability, complicatedness in construction and large construction interference in the prior art. According to the invention, a technical scheme is as follows: the earthquake resistant structure of the high earth-rock dam in the earthquake region is characterized by comprising anchoring bodies and a slope protective layer, wherein the anchoring bodies are positioned in a rockfill at the upper part of a dam body and placed every certain elevation; the slope protective layer is positioned on the surface of a dam slope; each anchoring body is uniformly connected with a group of earthquake resistant inhaul cables; and the other ends of the earthquake resistant inhaul cables are anchored together with the protective layer. The earthquake resistant structure of the high earth-rock dam in the earthquake region, provided by the invention, is suitable for high earth-rock dam projects in highly seismic regions.

Description

technical field [0001] The invention relates to an anti-seismic structure of a high earth-rock dam in an earthquake zone, which is mainly suitable for a high earth-rock dam project located in a strong earthquake area. Background technique [0002] For high earth-rockfill dams located in strong earthquake areas, the dam crest and upper dam slope are extremely vulnerable to damage because the upper part of the dam body is subjected to the strongest seismic motion response. In order to prevent earthquake damage, the traditional method is to bury steel mesh on the upper dam near the top of the dam, set up concrete grids on the slope and other seismic reinforcement measures, or install Geogrid and masonry slope protection, etc. However, the reinforced mesh is easy to rust, the geogrid is easy to age, and it is difficult to connect the reinforced mesh or geogrid with the slope protection structure on the surface of the dam body to form a reliable seismic system; There is constru...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/06E02B8/00E02B8/06
Inventor 徐建军彭育
Owner POWERCHINA HUADONG ENG COPORATION LTD
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