CN210002343U - Combined overflow dam structure - Google Patents

Abstract

The utility model discloses a modular overflow dam structure, protect flat including setting up overflow dam and this overflow dam downstreams on the dam foundation, be equipped with on the overflow dam and turn over the board dam, wherein, the overflow dam is the dam facing overflow, in addition, the overflow dam is concrete gravity dam, turn over board dam adoption panel vertical water flow direction's double-fulcrum roller connecting rod formula floodgate the utility model discloses connect on the overflow dam top and turn over the board dam, not only improved reservoir water storage level, reinforcing flood discharge capacity in flood season to reduce the concrete engineering volume of overflow dam, reduce the engineering investment, economical considerable turns over the board dam simultaneously and is opened and close by water level automatic control, does not need personnel's management, also does not need other power and equipment, and convenient operation has saved the running cost, here the utility model discloses can be in hydraulic engineering technical field flood push and use.

Description

Combined overflow dam structure

Technical Field

The utility model relates to a modular overflow dam structure belongs to hydraulic and hydroelectric engineering technical field.

Background

The urban landscape dam mainly aims at flood control, water storage, waterlogging drainage, riverway landscape beautification for people to entertain and recreation and the like, and the current landscape dams applied to flood comprise a steel dam, a hydraulic lifting dam, a rubber dam, an overflow dam, a flap dam and the like.

The traditional landscape dams have defects, and the steel dam is high in manufacturing cost and is not considered preferentially; the amount of concrete engineering in the hydraulic lifting dam is complex, although initial investment saves equipment capital, the subsequent maintenance cost is higher, and the water blocking height and width are limited. The rubber dam has poor defense force against river sundries, the dam bag is easy to damage and difficult to repair, the durability is poor, and the overall ornamental effect is poor; the overflow dam has a simple and stable structure, only meets the ornamental requirement, cannot flexibly adjust the reservoir water level and the downward discharge flow, and is not favorable for flood discharge in the flood season if a high dam is built; the working water head of the flap dam is not high, and the applicability is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an modular overflow dam structure to the defect of traditional view dam.

The utility model discloses a realize like this:

A combined overflow dam structure comprises an overflow dam arranged on the dam foundation and a downstream protection flat of the overflow dam, wherein a flap dam is arranged on the overflow dam.

The overflow dam is a dam face overflow dam, in addition, the overflow dam is a concrete gravity dam, and the flap dam adopts a double-fulcrum roller connecting rod type gate with a panel in the direction of vertical water flow.

Compared with the prior art, the utility model discloses connect on overflow dam top and turn over the board dam, not only improved reservoir water storage position, reinforcing flood discharge ability in flood period to reduce the concrete engineering volume of overflow dam, reduce the engineering investment, the economic nature is considerable, turns over the board dam simultaneously and opens and close by water level automatic control, does not need personnel's management, also does not need other power and equipment, and the running cost has been saved in convenient operation, this utility model discloses can be in hydraulic and hydroelectric engineering technical field general push and use.

Drawings

Fig. 1 is a schematic plan view of combined overflow dam structure;

FIG. 2 is a schematic view of a flap dam;

description of reference numerals: 1-overflow dam, 2-flap dam, 3-dam foundation and 4-apron dam.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, shall be understood to mean , such as "connected," which may be fixed, detachable, or physically connected, may be mechanically connected, may be electrically connected, may be directly connected, may be indirectly connected through an intermediate medium, and may communicate between two elements.

As shown in fig. 1 and 2, the utility model discloses a combined overflow dam structures of embodiment, overflow dam 1 including the gravity concrete dam structure that sets up on dam foundation 3 still includes overflow dam low reaches apron 4. set up on overflow dam 1 and turn over board dam 2, wherein, overflow dam 1 adopts the dam facing overflow, and the wide top in dam crest should satisfy turns over board dam 2 installation requirement, overflow dam 1 crest elevation is less than normal retaining level, but need be higher than the siltation water level to prevent that silt from producing harmful effects to turning over board dam, turn over board dam 2 and turn over board dam crest elevation and can be slightly higher than normal retaining level, must not be higher than design flood level, produce full section overflow during normal operation, gate opens flood control board dam 2 height range 2 to 3m when the reservoir surpasss fixed height back, the flood control board dam 2 height range 2 is specifically formulated according to the flood control requirement.

The utility model discloses go on according to following step in the work progress: (1) and removing the covering layer of the dam foundation, and pouring concrete of the dam body to ensure that the dam foundation 3 is located on the bedrock. (2) And pouring concrete into the dam body of the overflow dam 1 to the top of the dam, installing the flap dam 2, and constructing the downstream apron 4.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (3)

1. The combined overflow dam structure is characterized by comprising an overflow dam (1) arranged on a dam foundation (3) and a downstream apron (4) of the overflow dam (1), wherein a flap dam (2) is arranged on the overflow dam (1), the overflow dam (1) is a concrete gravity dam, the elevation of the top of the flap dam is lower than a normal water storage level and higher than a siltation water level, and the height range of the flap dam (2) is 2-3 m.
2. 2. The modular weir structure of claim 1, wherein: the overflow dam (1) adopts dam surface overflow.
3. 3. The combined overflow dam structure of claim 1, wherein the flap dam (2) is a dual-pivot roller link gate with a panel perpendicular to the water flow direction.

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