Earth and rockfill dam ice pushing and pulling prevention structure and construction method thereof

A construction method and technology for earth-rock dams, applied in dams, barrages, climate change adaptation, etc., can solve the problems of ice pulling damage, frost-heaving deformation of earth-rock dam slope protection, and damage of earth-rock dam slope protection, so as to prolong the service life and reduce maintenance costs. , the effect of strong applicability

Active Publication Date: 2022-07-12
NANJING HYDRAULIC RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Frozen damage to reservoir slope protection in alpine regions is a common problem. Earth-rock dam slope protection will produce frost heave deformation and ice pull damage under the acti

Method used

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  • Earth and rockfill dam ice pushing and pulling prevention structure and construction method thereof
  • Earth and rockfill dam ice pushing and pulling prevention structure and construction method thereof
  • Earth and rockfill dam ice pushing and pulling prevention structure and construction method thereof

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like figure 1 and figure 2 As shown, an anti-icing and ice-pulling structure of an earth-rock dam includes several anti-icing and ice-pushing boxes 1. The anti-icing and ice-pulling box is composed of a frame 2, an iron wire 3 and a dry masonry 4, and the frame 2 is a cuboid structure. The iron wires 3 are welded and fixed on the six surfaces of the frame 2, and several dry masonry stones 4 are placed in the frame 2. The iron wire 3 is made of high-quality low-carbon steel wire. After being processed and formed by automatic precision equipment in strict accordance with the BS1052:1986 standard, the surface is passivated and plasticized by electro-galvanizing. The wire mesh hole is rectangular. The horse road 6 is located in the winter water level fluctuation area of ​​the upstream dam slope, and the ice-proof pushing and ice pulling boxes 1 are sequ...

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Abstract

The invention discloses an earth and rockfill dam anti-ice pushing and pulling structure and a construction method thereof, an anti-ice pushing and pulling box comprises a frame of a cuboid structure, dry stone is placed in the frame, and iron wires are arranged on all faces of the frame and used for blocking the dry stone. The anti-icing and ice-pushing pulling boxes are sequentially arranged on a riding track in the dam axis direction of the earth and rockfill dam, and the riding track is located in a winter water level change area of an upstream dam slope of the dam. During construction, the lowest temperature and the maximum ice thickness of the earth and rockfill dam in winter over the years are firstly collected, then ice thrust is calculated, and an anti-ice-pushing pulling box capable of meeting the static ice pressure requirement is manufactured; and finally, the anti-icing and ice-pushing pulling boxes are sequentially arranged on an upstream dam slope riding track in the dam axis direction of the earth and rockfill dam. The device has the advantage of being high in ice pushing and pulling prevention capacity, and earth and rockfill dam slope protection ice pushing and pulling damage can be avoided; an original dam protection slope does not need to be changed, the method can adapt to earth and rockfill dams of different structures, slope ratios, dam heights and dam lengths, and the applicability is high; the construction is simple; the cost is low, and the like.

Description

technical field [0001] The invention belongs to the technical field of earth-rock dam protection construction engineering, and particularly relates to an ice-proof pushing and ice-pulling structure of an earth-rock dam and a construction method thereof. Background technique [0002] The frost damage of the slope protection of the reservoir in the alpine region is a common problem. The slope protection of the earth-rock dam will produce frost heave deformation and ice pull failure under the action of negative temperature in winter. Thrust, under the action of repeated freezing and thawing, ice pushing and ice pulling, and wind and waves, the slope protection of the earth-rock dam will be damaged. SUMMARY OF THE INVENTION [0003] Purpose of the invention: The purpose of the present invention is to solve the above problems, and propose a kind of anti-icing and ice-pulling structure of the earth-rock dam that can eliminate the ice damage of the earth-rock dam slope protection...

Claims

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Application Information

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IPC IPC(8): E02B7/06E02B3/12
CPCE02B7/06E02B3/12E02B3/129Y02A10/11
Inventor 李卓方艺翔蒋景东毕朝达范光亚杨阳江超张大伟
Owner NANJING HYDRAULIC RES INST
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