Low-cost water preparation system for construction of hydraulic and hydro-power engineering
A technology of engineering construction, water conservancy and hydropower, which is applied in the direction of drinking water installations, infrastructure engineering, water supply installations, etc., can solve the problems of high operating cost, large one-time investment, and short use time, so as to shorten the water supply pipeline, reduce construction and The effect of running costs
Inactive Publication Date: 2013-05-22
CHINA GEZHOUBA GROUP CO LTD +1
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Problems solved by technology
The one-time investment in building water plants and pipelines is large, the use time is short, and the operating costs are high
Method used
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[0017] Such as figure 1 , figure 2 Among them, a low-cost water-making system used in the construction of water conservancy and hydropower projects, the water-making well 4 is set at the position of the fine material layer 2 of the cofferdam 8, and the water-making well 4 is made of sand-free concrete material with reinforcement, so that it has sufficient Intensity, so as not to have an impact on the strength of the cofferdam 8, a sandless concrete layer is poured at the bottom of the water making well 4.
[0018] Since the cofferdam 8 is usually provided with an anti-seepage wall 1, in order to ensure the amount of water produced, the water control well 4 is arranged on the facing surface of the cofferdam 8, and the upper end of the water control well 4 is higher than the elevation of the design flood level 7 of the cofferdam. The optimized solution is to arrange the water production well 4 at the downstream cofferdam to reduce the erosion of the water flow on this part of ...
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The invention relates to a low-cost water preparation system for the construction of hydraulic and hydro-power engineering, comprising a water pumping device, wherein a water preparation well is arranged on the position of a fine material layer of a cofferdam and made of reinforced non-fine concrete materials; and a non-fine concrete layer is poured on the downhole of the water preparation well. The filtering action of an inverted filter of the cofferdam is fully utilized in the low-cost water preparation system; through adopting the low-cost water preparation system disclosed by the invention, untreated original water inside rivers is filtered for sewage interception through the inverted filter of the cofferdam, and then water quality can basically reach the standard of the quality of water for production; on the basis, the water quality can completely reach the standard through the intercepting action of non-fine concrete on sewages; in addition, in the invention, a water supply pipeline is shortened and an intermediate link of a water treatment plant is eliminated because a water intake point is close to a construction site of a dam, and therefore construction and operation costs are greatly reduced.
Description
technical field [0001] The invention relates to a water production system used in the construction of water conservancy and hydropower projects, in particular to a low-cost water production method suitable for meeting the water quality requirements of water conservancy and hydropower project construction. Background technique [0002] Water conservancy and hydropower construction usually builds earth-rock cofferdams in rivers, drains the water in the cofferdams, and then builds dams in the cofferdams. In order to ensure the stability of the cofferdam and reduce the seepage of the cofferdam, different parts of the cofferdam are designed with fillers of different material diameters to form a reverse filter layer. In order to improve the water-retaining effect of the cofferdam, an anti-seepage wall is usually set up on the cofferdam. The water used for dam construction in the cofferdam is one of the most important water points in the construction of water conservancy and hydro...
Claims
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IPC IPC(8): E03B3/06E03B3/08E03B3/26E02D19/04
Inventor 曾红革肖卓文黄远华邸书茵才永发黄万林张明森
Owner CHINA GEZHOUBA GROUP CO LTD