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Pipe-protection-free integrated check dam and downstream slope protection layer surface construction technology thereof

A check dam and integrated technology, which is applied to the construction technology field of a check dam without pipe protection and its downstream slope protection layer, can solve the threat of the downstream check dam, the collapse of the check dam and the flood control standard of the check dam. lower problem

Active Publication Date: 2021-06-25
YELLOW RIVER ENG CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of check dams and scattered distribution, the management and protection tasks are huge, and the flood control standards of check dams are low. The excessive flood caused by the dam failure will pose a threat to the downstream check dam, thus forming a chain reaction

Method used

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  • Pipe-protection-free integrated check dam and downstream slope protection layer surface construction technology thereof
  • Pipe-protection-free integrated check dam and downstream slope protection layer surface construction technology thereof
  • Pipe-protection-free integrated check dam and downstream slope protection layer surface construction technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The embodiment of the present invention provides a pipe-free protection integrated check dam, which includes a homogeneous earth dam dam body 01 and a protective layer arranged on its surface. The protective layer includes an upstream slope protection layer 02, a mixture layer 04 and a downstream slope protection layer 03 , and the upstream slope protection layer 02, the mixture layer 04 and the downstream slope protection layer 03 are sequentially connected as a whole, and the upstream slope protection layer 02, the mixture layer 04 and the downstream slope protection layer 03 are respectively arranged on the upstream dam slope of the homogeneous earth dam body 01 On the surface, dam crest and downstream dam slope surface; in the homogeneous earth dam dam body 01, multi-layer blind drainage pipes 05 are buried (for example, several layers of blind drainage pipes 05 are arranged horizontally along the vertical direction), and several layers of blind drainage pipes 05 are ...

Embodiment 2

[0044] On the basis of Example 1, the thickness of the upstream slope protection layer 02 is 1.0m to 1.5m; the thickness of the downstream slope protection layer 03 is 2.0m to 3.0m; the distance between two adjacent layers of the blind drainage pipe 05 in the vertical direction is 3m , The distance between two adjacent drainage blind pipes 05 in the horizontal direction is 3m-5m; the upstream slope protection layer 02, the mixture layer 04 and the downstream slope protection layer 03 use the same mixture.

[0045] The working principle and beneficial effects of the above-mentioned technical solution are as follows: in this technical solution, since the downstream dam slope has to withstand the continuous erosion of water flow, the thickness of the downstream slope protection layer 03 needs to be greater than the thickness of the upstream slope protection layer 02, so the upstream slope protection layer is set The thickness of 02 is 1.0m~1.5m; the thickness of downstream slope p...

Embodiment 3

[0047] On the basis of Example 1 or 2, the mixture includes dam building soil material and argillaceous silt fine sand consolidation agent, and the weight ratio of dam building soil material and argillaceous silt fine sand consolidation agent is 70~90:10~ 30. The argillaceous silt and fine sand consolidation agent includes calcined argillaceous silt fine sand fine powder, mineral powder and cement, and its weight percentage is 70-80%: 5-10%: 10-25%.

[0048] The working principle and beneficial effects of the above-mentioned technical scheme are as follows: in this technical scheme, the soil material for building the dam is added with argillaceous silt and fine sand consolidation agent, which significantly improves the strength of the upstream and downstream dam slopes. After testing, its strength is equivalent to C10-C15 concrete, thus improving the anti-scouring capacity and comprehensive durability of the upstream and downstream dam slopes, and achieving the purpose of maint...

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Abstract

The invention provides a pipe-protection-free integrated check dam and a downstream slope protection layer surface construction technology thereof. The pipe-protection-free integrated check dam comprises a homogeneous earth dam body and a protective layer arranged on the surface of the homogeneous earth dam body, the protective layer comprises an upstream slope protection layer, a mixture layer and a downstream slope protection layer, the upstream slope protection layer, the mixture layer and the downstream slope protection layer are sequentially connected into a whole, and the upstream slope protection layer, the mixture layer and the downstream slope protection layer are arranged on the upstream dam slope surface, a dam crest and the downstream dam slope surface of the homogeneous earth dam body respectively. A plurality of layers of drainage blind pipes are embedded in the inner edge of the homogeneous earth dam body, each layer is provided with a plurality of drainage blind pipes, and the drainage blind pipes all penetrate through the downstream slope protection layer to extend to the external environment.

Description

technical field [0001] The invention relates to the technical field of check dam construction, in particular to a construction process for a check dam with integrated protection without management and its downstream slope protection layer. Background technique [0002] In the Loess Plateau area of ​​Northwest my country, there are ravines and ravines, and soil erosion is serious. In order to intercept the silt formed by water and soil erosion, a large number of check dams have been built in the ditches. The layout of check dams is generally to build a series of cascade dams in the main channel, the branch channel and the main channel according to the size of the drainage area of ​​the channel. Flood detention, mud retention, silting, and reducing sediment entering the river are of great significance, and are an important measure for comprehensive management of small watersheds. [0003] The check dams currently built are composed of dams and drainage structures. The dams ar...

Claims

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Application Information

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IPC IPC(8): E02B7/00E02B7/06E02B3/16
CPCE02B7/00E02B7/06E02B3/16Y02A10/11
Inventor 尤尊贤盖永岗邓伟杰顾康辉胡艳杰唐晓阳魏建鹏
Owner YELLOW RIVER ENG CONSULTING
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