Overground step reservoir and building method thereof

Abstract

The invention discloses an overground cascade reservoir and a method for constructing the same, wherein, the overground cascade reservoir comprises a barrage, gravity flow conduits, a water inlet control valve well, a water outlet control valve well, a branch gully conservation reservoir, a conservation dam, offlets and a supply-water pump station. The construction method comprises the following steps that: (1) at first, the barrage is constructed in a main river; (2) the branch gully conservation reservoir is constructed; (3) the barrage and the conservation dam is communicated by the gravity flow conduits; (4) the supply-water pump station is constructed at the lower reaches of the main river or around the main river; (5) the offlets and the conduits of the main riverway are communicated. The invention has the advantages that: the reservoirs are positioned at the branch gullies of the two sides of the mountain area river and are easily controlled; when abundant, the water is conserved, and when the water dried up, the conserved water can be used, thereby the reservoirs are in particular adapted to the areas where riverwaies do not have a plurality sand-pebbles. Surface runoffs of the various seasons are conserved by the barrage (overflow dam) and can be inputted into the conservation dam by the conduits, the surface water is utilized maximumly, and the project life cycle can protect the soil erosion.

Description

Technical field: [0001] The invention relates to a reservoir and a construction method thereof. In particular, it relates to an aboveground cascade reservoir and a construction method thereof. Background technique: [0002] With the development of society, the increase of population, the demand for industrial and domestic water is increasing day by day, the contradiction between water demand and water supply capacity is intensified year by year, and the influence of natural factors such as global warming makes the contradiction between supply and demand worse. As an important strategy and means to optimize the allocation of water resources and improve the carrying capacity of water resources, above-ground reservoirs have long been the main solution in the water conservancy field. Not for general use. Researching new forms of reservoir water storage is just one of the current hot spots. [0003] Judging from the existing reservoirs, most of them are built on rivers with fi...

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Problems solved by technology

[0003] Judging from the existing reservoirs, most of them are built on rivers with fixed water sources and large basins. The biggest drawback of this method is that it has high requirements on geological structure and shape, serious siltation, short service life, and high investment. It is difficult to solve social contradictions such as immigrant inundation and so on. Therefore, not only has the scope of use been small for many years, but also problems such as danger removal and reinforcement and serious siltation have occurred from time to time.

[0004] Although the above problems are not serious for the check dam used for land creation, it does not make rational use of water resources, and its service life is short, and its ability to resist extremely large torrents is poor

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