High elastic die cushion type composite dam

A technology of composite dams and mold pads, applied in the direction of dams, barrages, weirs, etc.

Active Publication Date: 2014-10-29
POWERCHINA XIBEI ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical feasibility problems such as deformation, face deflection and stress of 300m super high face rockfill dam in the prior art

Method used

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  • High elastic die cushion type composite dam

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Experimental program
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Effect test

Embodiment 1

[0024] In order to overcome the technical feasibility problems of the 300m super high face rockfill dam in the prior art, such as deformation, face deflection and stress, this embodiment provides a figure 1 The high elastic modulus pedestal composite dam shown includes a concrete panel 1, a cushion area 2, a transition area 3, an upstream main rockfill area 4 and a downstream secondary rockfill area 5, which are sequentially arranged from upstream to downstream. A high-toe wall area 6 is provided at the bottom of the panel 1, the cushion area 2, and the transition area 3, and a low compression area 9 is provided at the bottom of the upstream main rockfill area 4 and the downstream secondary rockfill area 5, and the low compression area 9 is placed downstream of the high toe wall area 6 and below the top elevation of the high toe wall area 6 .

[0025] Among them, the high toe wall area 6 is designed according to the gravity dam, and the design standard complies with the releva...

Embodiment 2

[0029] On the basis of Example 1, in order to protect the concrete panel 1 and the high toe wall area 6, the upstream side of the concrete panel 1 and the high toe wall area 6 is sequentially provided with a weight area 11 and a bedding from upstream to downstream area 10; the bottom elevation of the ballast area 11 and the bedding area 10 is higher than the bottom of the low compression area 9 by more than 10m; the thickness of the bedding area 10 above the upstream end of the top of the high toe wall area 6 is not less than 10m, and meets the bedding requirements. Allowable slope requirements for Zone 10.

[0030] The upstream side slope ratio of the high toe wall area 6 is 1:t, and the value range of t is 0-0.2, the partition slope ratio between the downstream side of the high toe wall area 6 and the low compression area 9 is 1:S, and S is not less than 0.5 and is determined according to actual engineering. The high toe wall area 6 and the low compression area 9 have the s...

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PUM

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Abstract

The invention belongs to the technical field of hydroelectric and hydraulic engineering hydraulic structures, and particularly provides a high elastic die cushion type composite dam. The composite dam comprises a concrete face plate, a cushion layer area, a transition area, an upstream major stone pile area and a downstream minor stone pile area, wherein the concrete face plate, the cushion layer area, the transition area, the upstream major stone pile area and the downstream minor stone pile area are sequentially arranged from an upstream region to a downstream region; a high toe wall area is arranged at the bottom of the concrete face plate, the bottom of the cushion layer area and the bottom of the transition area; a lower compression area is arranged at the bottom of the upstream major stone pile area and the bottom of the downstream minor stone pile area; the lower compression area is arranged at the downstream position of the high toe wall area and below the crest level of the high toe wall area. The high toe wall area and the lower compression area are arranged, so that transformation and stress of a dam body and the concrete face plate are reduced, the standards of stone pile dams with 200 m level face plates are reached, and the technology for stone pile dams with 300 m level face plates is feasible, economical and safe.

Description

technical field [0001] The invention belongs to the technical field of hydraulic structures of hydropower and water conservancy projects, and in particular relates to a high elastic modulus cushion type composite dam. Background technique [0002] With the implementation of the hydropower strategy, a large number of high dams have been built, are under construction or are to be built in the southwest and northwest regions rich in hydropower resources. Earth-rock dam is the most common dam type in dam construction today, and it is also the fastest-growing dam type, accounting for more than 95% of the total number of dams built. There are more than 29,000 earth-rockfill dams with a dam height of more than 15m in the world, among which there are more than 15,000 in my country, mainly including homogeneous earth dams, core wall dams and concrete face rockfill dams. [0003] Reinforced concrete face rockfill dam is a new type of dam developed in the late 1970s. In practice, it h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/04E02B7/06
Inventor 蔡新合姚栓喜雷艳郝丽莎张晓将魏坚政王君利吴峻峰李锋
Owner POWERCHINA XIBEI ENG
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