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Hydropower station layout structure with low investment and short construction period and construction method thereof

A construction method and technology of layout structure, applied in the overall layout structure and construction field of hydropower stations, can solve the problems of long construction period, short construction period and low investment, etc.

Active Publication Date: 2015-06-17
卢现立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a new layout structure and construction method of a hydropower station with less investment and short construction period, which solves the problems of large investment and long construction period in the infrastructure construction of hydropower stations at present

Method used

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  • Hydropower station layout structure with low investment and short construction period and construction method thereof
  • Hydropower station layout structure with low investment and short construction period and construction method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: The world-famous Three Gorges Hydropower Station has a foundation excavation volume of 102.59 million m 3 , if it is placed around the earth by 1m in height and width, it can circle the earth 2.5 times. It is difficult to find a place to pile up the gravel, which is useless and damages the environment. A dam of the same scale can be built with 3-6% of the total amount of reinforced concrete in the whole power station, and the investment is greatly reduced, and the construction period is greatly shortened.

Embodiment 2

[0033] Example 2: Guangxi Yantan Hydropower Station is designed to adopt a concrete gravity dam with a dam height of 100m and a length of 700m, with a diabase foundation, an installed capacity of 1.21 million kilowatts, a construction period of 10 years, and a foundation excavation of 10.17 million m 3 , the volume of concrete is 3.42 million m 3 , Gravel piled all around. If adopt the layout structure and the construction method of the present invention, only half of its discarded stone slag and 6% of the total amount of reinforced concrete can be used to form the dam.

Embodiment 3

[0034] Example 3: At present, the most advanced Tianshengqiao first-level hydropower station in China adopts a concrete face rockfill dam with a height of 178m and an installed capacity of 1.2 million kilowatts. It is the same as Yantan, and it was also built at the same time. The amount of reinforced concrete used was 1.37 million m 3 , the amount of reinforced concrete per kilowatt is 1.14m 3, the actual kilowatt cost is 8,500 yuan, which is equivalent to 2.83 times of Yantan's 3,000 yuan, and the construction period is also 10 years. If the layout structure and construction method of the present invention are adopted, the investment and construction period will be greatly reduced.

[0035]

[0036] Table 1 Hydropower station of the present invention and traditional hydropower station civil engineering volume comparison table

[0037] The data in the above table shows that compared with the civil works of traditional hydropower stations, the hydropower stations using the ...

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Abstract

The invention relates to a hydropower station layout structure with low investment and short construction and a construction method thereof. The layout structure is characterized in that a plant, a flood discharge gate and a ship lock are arranged on mountains at both sides of a dam body of a major river bed; a lengthened reservoir is excavated among the flood discharge gate, the plant and the corresponding mountains along the river direction; the water surface of the lengthened reservoir is parallel and level with the water surface on the upstream of a dam; and the dam body, the flood discharge gate and the plant are sequentially arranged along the river direction. The construction method comprises the following steps of: according to the upstream water level in the reservoir design, determining the excavation heights of the mountains at the corresponding sides of the dam; excavating the mountains with concave sections at the excavation heights; excavating a large-scale feeder canal lower than the upstream water level, which is used as the lengthened reservoir, at the positions of notches; sequentially constructing the flood discharge gate and the plant at the convex part close to one side of a river in the downstream direction; and excavating a diversion ditch on the mountain at the other side of the river and expanding the diversion ditch into the ship lock. Three buildings can be simultaneously constructed, so that the construction period and the investment are also greatly reduced and the problems of high investment and long construction period of the infrastructure construction of a current hydropower station are solved.

Description

technical field [0001] The invention relates to an overall layout structure and a construction method of a hydropower station, and is especially suitable for a river bed type hydropower station with shortened construction period and reduced investment. Background technique [0002] A hydropower station is a comprehensive engineering facility that converts water energy into electrical energy, including a series of hydropower station buildings and various hydropower station equipment for the use of water energy to produce electricity, generally consisting of hydraulic buildings, workshops, power generation devices, Electrical primary system, electrical secondary system and other components. Backwater intake structures, water diversion structures, and flood discharge structures are all hydraulic structures. The power generation device includes hydroelectric generators and some auxiliary equipment in the main powerhouse. Regulate the flow of natural water flow and send it to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B9/00
CPCY02E10/20
Inventor 卢现立杨绿峰卢锋卢婵江
Owner 卢现立
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