CN211849318U

CN211849318U - Anti-blocking spillway

Info

Publication number: CN211849318U
Application number: CN202020455661.4U
Authority: CN
Inventors: 冯二巧
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-03
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a prevent stifled spillway relates to hydraulic engineering technical field. The utility model discloses a concrete cell wall has been built to the soil box in, and concrete cell wall bottom is the rectangular channel to the bottom plate has been laid to the rectangular channel, and the bottom plate up end is equipped with the middle part groove and is located the limit groove of middle part groove both sides, and the limit groove is convex, and the arch groove has been erect to middle part groove upper end, and arch groove both sides are equipped with the slope with the butt joint of limit groove, and arch groove top is equipped with the notch of permeating water along length direction. The utility model discloses a spillway carries out the drainage through convex limit groove and middle part groove, and middle part groove upper end is equipped with the arch-shaped groove, makes the small discharge water flow to limit groove, improves the velocity of flow, reduces silt and becomes silted up stifled, has better anti-blocking ability to when flood flow is great, but tee bend drainage still has higher flood discharge ability.

Description

Anti-blocking spillway

Technical Field

The utility model belongs to the technical field of hydraulic engineering, especially, relate to an anti-blocking spillway.

Background

Earth dams, especially silty dams, have a great role in hydraulic engineering and are commonly built in small-area trenches in water and soil erosion areas for holding floods, blocking sand and making fields with silts. With the frequent occurrence of water damage events of the siltation dam in recent years, spillways are usually arranged on the side slope and two sides of the dam body to reduce the risk of dam breaking.

The structure of the spillway in the prior art is an isosceles trapezoid or a rectangular channel, the spillway has a large cross-sectional area in order to keep good flood discharge capacity, so that sand discharge capacity under the condition of normal water flow is poor, a horizontal runner is quite easy to block, the existing spillway is formed by directly building cement, maintenance effect is poor, long-time wind blowing, solarization and flowing water scouring cause that the surface of the runner is broken and the problem of breakage is serious, and further silt blocking is caused, so that the anti-blocking spillway is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent stifled spillway to solve the technical problem who proposes in the above-mentioned background art.

The utility model discloses a realize through following technical scheme:

the utility model relates to a prevent stifled spillway, including the soil box, the concrete cell wall has been built in the soil box, concrete cell wall bottom is the rectangular channel to the bottom plate has been laid in the rectangular channel, the bottom plate up end is equipped with the middle part groove and is located the limit groove of middle part groove both sides, the limit groove is convex, middle part groove upper end has erect the arch groove, arch groove both sides are equipped with the slope with the butt joint of limit groove, arch groove top is equipped with the notch of permeating water along length direction.

Further, the bottom plate and the arched grooves are both precast concrete castings.

Further, the middle groove is arc-shaped.

Furthermore, the side edge of the side groove is in butt joint with the side wall of the concrete groove wall.

Further, the water permeable notch is inclined downwards at an angle of 30-45 degrees, and the inclined direction is downward along the slope of the spillway.

Furthermore, the side wall of the concrete tank wall is in an isosceles trapezoid shape with a large upper port and a small lower port.

The utility model discloses following beneficial effect has:

1. the utility model discloses a spillway carries out the drainage through convex limit groove and middle part groove, and middle part groove upper end is equipped with the arch-shaped groove, makes the small discharge water flow to limit groove, improves the velocity of flow, reduces silt and becomes silted up stifled, has better anti-blocking ability to when flood flow is great, but tee bend drainage still has higher flood discharge ability.

2. The utility model discloses a precast concrete's bottom plate and arch groove have improved overflow spillway's scour prevention ability, anti deformability and anti surface fracture nature, not only can improve overflow spillway life, still can improve overflow spillway surperficial smoothness, improve the ability that prevents silt and become silted up stifled.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a cross-sectional view of the anti-blocking spillway of the present invention;

fig. 2 is a sectional view of the arch groove of the present invention along the length direction.

In the drawings, the components represented by the respective reference numerals are listed below:

1-soil groove, 2-concrete groove wall, 3-bottom plate, 4-middle groove, 5-side groove, 6-arch groove and 7-permeable groove opening.

Detailed Description

The technical solutions 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 the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-2, the utility model relates to a prevent stifled spillway, including soil box 1, concrete cell wall 2 has been built in soil box 1, wherein, concrete cell wall 2's lateral wall is the isosceles trapezoid that the port is big, the port is little down, be convenient for to the rapid rivers energy dissipation of turbulence, concrete cell wall 2 bottom is the rectangular channel, and bottom plate 3 has been laid to the rectangular channel, bottom plate 3 up end is equipped with middle part groove 4 and is located the side slot 5 of middle part groove 4 both sides, side slot 5 is convex, middle part groove 4 also is convex, convex side slot 5 and middle part groove 4 can improve the efficiency of drainage sand discharging, especially when rivers are less, can prevent silt stifled. An arch-shaped groove 6 is erected at the upper end of the middle groove 4, slope surfaces butted with the side grooves 5 are arranged on two sides of the arch-shaped groove 6, the side edge of the side groove 5 is butted with the side wall of the concrete groove wall 2, a water permeable notch 7 is arranged at the top of the arch-shaped groove 6 along the length direction, wherein the water permeable notch 7 is inclined downwards at an angle of 30-45 degrees, the inclination direction is downward along the slope of the spillway, the water permeable notch 7 can prevent large-diameter stones from falling into the middle groove 4 to form silting while draining water, the arch-shaped groove 6 enables silt and water under normal water flow to the side grooves 5 on two sides, and the water flow area passing through the spillway in unit time is increased through the narrow side grooves 5 under the same water discharge amount, so that the water flow rate is increased, and the silting; when the water flow is large, water can overflow into the middle groove 4, the whole spillway can be through-flow, the effective flood discharge area of the spillway cannot be reduced, and the flood discharge capacity is still good.

Wherein, bottom plate 3 and arch groove 6 are precast concrete casting, and prefabricated bottom plate 3 and arch groove 6 have better scour protection ability, deformation resistance and anti surface fracture nature, not only can improve spillway life, still can improve spillway surface's smoothness, improve the ability that prevents silt and block up.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a prevent stifled spillway, includes soil box (1), its characterized in that: concrete cell wall (2) have been built in soil box (1), concrete cell wall (2) bottom is the rectangular channel to bottom plate (3) have been laid to the rectangular channel, bottom plate (3) up end is equipped with middle part groove (4) and is located limit groove (5) of middle part groove (4) both sides, limit groove (5) are convex, arch-shaped groove (6) have been erect to middle part groove (4) upper end, arch-shaped groove (6) both sides are equipped with the slope with limit groove (5) butt joint, arch-shaped groove (6) top is equipped with notch (7) of permeating water along length direction.

2. A block-resistant spillway according to claim 1, characterized in that the floor (3) and the arch-shaped trough (6) are both precast concrete castings.

3. An anti-clogging spillway according to claim 1, characterized in that the central trough (4) is circular arc shaped.

4. A block-resistant spillway according to claim 1, characterized in that the side of the side channel (5) is butted against the side wall of the concrete channel wall (2).

5. An anti-clogging spillway according to claim 1, characterized in that the water-permeable rebates (7) are inclined downwards at 30 ° -45 ° and the inclination is downwards along the slope of the spillway.

6. An anti-block spillway according to claim 1, characterized in that the side wall of the concrete tank wall (2) is in the shape of an isosceles trapezoid with a large upper port and a small lower port.