Reservoir silt configuration method

A method of disposing sediment and sediment technology, which is applied in water conservancy projects, sea area projects, buildings, etc., to avoid damage, increase agricultural economic benefits, and improve the surrounding ecological environment.

Pending Publication Date: 2021-07-23
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned defects and problems, the present invention provides a reservoir sediment allocation method. By processing the sediment on the spot, the cleared silt and sand are used to build trapezoidal bank revetments, which not only reduces the reservoir area The amount of sediment deposition increases the elevation and water storage capacity of the reservoir area, avoiding the drastic reduction of the reservoir's water storage performance caused by sediment deposition, and can remove the cleaned sediment in areas other than the trapezoidal revetment Construct wetlands and farmland, improve the surrounding ecological environment, increase the habitat of birds and fish, and benefit the development of wetland ecosystems

Method used

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Examples

Experimental program
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Embodiment 1

[0027] Example 1, due to the sedimentation problem, the water storage performance of many reservoirs will be reduced, especially the reservoirs in sandy rivers. Due to the serious sedimentation, the normal water storage function of the reservoir will be reduced, and the water level of the reservoir will also be reduced due to sedimentation. However, dredging is the main way to remove sediment at present, and how to deal with the large amount of sediment removed is an urgent problem to be solved.

[0028] In view of the above problems, this embodiment provides a reservoir sediment allocation method. In the first step, dredging, the surveyors measure and determine the dredging position in the river channel of the reservoir area, and use dredgers to work in the reservoir area. The dredgers use mud pumps to The silt is pumped from the river to the cabin for storage. At the same time, open areas are set up on both sides of the river in the reservoir area. After the cabin of the dred...

Embodiment 2

[0034] Embodiment 2, a reservoir sediment configuration method in this implementation will be described centering on the differences from Embodiment 1.

[0035] In this embodiment, the sand dredger adopts small-scale vertical transportation and large-scale vertical transportation to process the silted sediment, transport the sediment from the upper reaches of the river to the downstream of the river for farmland or wetland construction, or transport the sediment from the lower reaches of the river to the upper reaches of the river Make fields or create wetlands.

Embodiment 3

[0036] Embodiment 3, a reservoir sediment configuration method in this implementation will be described centering on the differences from Embodiment 1.

[0037] In this embodiment, the packing layer includes an upper layer and a lower layer. The lower packing layer is laid with limestone with a particle size of 5-10mm or gravel and granite stones with different grades. The thickness of the lower packing layer is 300-400mm; the upper packing layer uses 5-10mm Limestone with particle size is paved with mixed soil with a calcium content of 2-2.5kg / 100kg, and the thickness is 150-250mm. After the filler layer is laid, the slurry is uniformly transported through the pipeline sand transport equipment, and the grout is evenly laid and planted. Plants with well-developed tubes and root systems are irrigated with water to form a wetland system.

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Abstract

The invention relates to the technical field of silt deposition treatment, in particular to a reservoir silt configuration method. The reservoir silt configuration method is characterized in that silt is treated on site, and the cleaned deposited silt is used for building a trapezoidal revetment, so that the silt deposition amount of a reservoir area is reduced, the elevation and the water storage capacity of the reservoir area are increased, and the situation that the water storage performance of a reservoir is greatly reduced due to the silt deposition problem is avoided; the cleaned silt can be used for building a wetland and a farmland land in the area outside the trapezoidal revetment, the surrounding ecological environment is improved, the habitat of birds and fishes is increased, and development of a wetland ecological system is facilitated.

Description

Technical field: [0001] The invention relates to the technical field of sedimentation control, in particular to a reservoir sedimentation method. Background technique: [0002] With the development of the economy and society, the demand for the development and utilization of rivers is increasing, and more and more water conservancy projects are built on the rivers, making it difficult for sediment to be transported downstream, resulting in sediment deposition. With the passage of time, especially sandy river reservoirs will greatly reduce their water storage function due to serious sedimentation, resulting in waste of resources, and the water level in the reservoir area will also rise due to sedimentation, such as the Sanmenxia Reservoir. The Sanmenxia Reservoir is the first large-scale comprehensive water conservancy project built on the main stream of the Yellow River mainly for flood control. However, due to insufficient estimation of the sediment problem and the small di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/00E02B3/02E02F5/28E02F3/88E02F7/02E02B3/12E02B3/16
CPCE02B3/00E02B3/023E02F5/28E02F3/885E02F7/02E02B3/12E02B3/16Y02A10/00Y02A10/30
Inventor 严军钟赛袁榆梁应乃武陈赛男高新亮张文虎贾朋宾韩清佟越陈萌白靓如彭光宏
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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