CN219280625U

CN219280625U - Double-bag air shield dam

Info

Publication number: CN219280625U
Application number: CN202222989730.1U
Authority: CN
Inventors: 魏玮; 宋文军; 冯义武; 成栋
Original assignee: Shandong Survey and Design Institute of Water Conservancy Co Ltd
Current assignee: Shandong Survey and Design Institute of Water Conservancy Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-06-30
Anticipated expiration: 2032-11-10

Abstract

The application discloses a double-bag air shield dam, which relates to the field of hydraulic engineering and comprises a dam foundation, wherein a shield plate is arranged on the dam foundation, an air bag is arranged between the inner side of the shield plate and the dam foundation, an air charging and discharging pipe is laid in the dam foundation, and the air charging and discharging pipe is communicated with the air bag; the air bags comprise a first air bag and a second air bag, the air charging and discharging pipe is respectively communicated with the first air bag and the second air bag, the height of a dam body lifted by the air bags is increased through a double-air-bag structure, and the dam lifting efficiency is greatly improved compared with that of the existing single-air-bag air shield dam or rubber dam; a protective curtain is arranged between the first air bag and the second air bag; the problem that rubber ageing or junction crosslinking thereof that can prevent that ultraviolet ray from shining the gasbag surface for a long time from bringing can be further prolonged the life of air shield dam, and the protection curtain is flexible structure and hardly need extra maintenance, labour saving and time saving.

Description

Double-bag air shield dam

Technical Field

The application relates to the field of hydraulic engineering, in particular to a double-bag air shield dam.

Background

The air shield dam mainly comprises a steel gate, an air bag, an embedded part, an air compression system and a control system, wherein the steel gate is formed by combining a row of reinforced steel plates, the downstream surface of each section of steel plate is supported by a special inflatable air bag, and the steel gate is lifted and lodged by inflating and exhausting the air bag by utilizing the air compression principle so as to maintain a specific water level. When the gate is fully opened, the gate body is fully laid down on the river bottom, so that water can be efficiently discharged, and the landscapes and navigation are not affected. When the gate is fully closed, water can be stored, and overflow landscapes can be formed when the water level exceeds a set water level, so that the water level control valve can be widely applied to engineering such as river channel treatment, urban landscapes, dam height increase, water diversion, farmland irrigation, drought control and waterlogging drainage, hydroelectric generation, sea wall construction, sea water backflow prevention, wetland, groundwater conservation and the like.

However, the most main problems of the air shield dam at present include limited dam lifting height, high air bag aging and high air bag loss speed and the like. Chinese patent 202220876284.0 discloses an air shield dam with back shielding, and its structure includes the dam body that comprises shield board subassembly and gasbag mechanism, and shield board subassembly is formed by the concatenation of a plurality of shields, and the back-mounted of shield board rolls up curtain mechanism, rolls up curtain mechanism and includes the power spool of winding curtain piece, and the free end and the foundation slab of curtain piece are connected. The air shield dam can effectively shield the back water surface of the shield, protect internal devices such as a rubber air bag and a control system, and prolong the service life.

The above data discloses the basic thought of protecting the air bag by means of the shielding structure, but the installation of the rolling mechanism on the dam body can bring more inconvenience when protecting the air bag, such as the corrosion of the connecting part of the rolling mechanism when meeting water, the complicated structure of the rolling system is difficult to maintain, etc., and the above data does not disclose the problem of how to further improve the dam lifting height of the dam body.

Disclosure of Invention

In order to solve the technical problems, the application provides a double-bag air shield dam, solves the problem that the height of the air shield dam is limited, and simultaneously provides an effective method for solving the protection problem of an air bag.

The technical problem of the application is realized through the following technical scheme: the double-bag air shield dam comprises a dam foundation, wherein a shield plate is arranged on the dam foundation, an air bag is arranged between the inner side of the shield plate and the dam foundation, an air charging and discharging pipe is laid in the dam foundation, and the air charging and discharging pipe is communicated with the air bag; the air bags comprise a first air bag and a second air bag, the air charging and discharging pipe is respectively communicated with the first air bag and the second air bag, and a protective curtain is arranged between the first air bag and the second air bag.

The technical scheme is that: the first air bag and the second air bag are arranged between the inner side of the shield plate and the dam foundation, and the height of the lifted dam body is increased through the double-air-bag structure, so that the dam lifting effect is better and the dam lifting speed is faster than that of the existing single air bag; the protection curtain is arranged between the first air bag and the second air bag, so that the problem that rubber is aged or the joint of the rubber is crosslinked due to the fact that ultraviolet rays irradiate the surface of the air bag for a long time can be solved, and the service life of the air shield dam is further prolonged.

Further, the first air bag and the second air bag are stacked up and down, and an anti-adhesion structure is arranged between the first air bag and the second air bag.

Further, the anti-adhesive mechanism includes a first gasket and a second gasket; the first gasket is attached to the surface of the first air bag, and the second gasket is attached to the surface of the second air bag; the first gaskets and the second gaskets are arranged in a staggered mode.

Further, a limit belt is arranged between the dam foundation and the shield plate; one end of the limiting belt is fixed in the anchoring groove of the dam foundation, and the other end of the limiting belt is fixed on the inner side wall of the shield plate.

Further, each shield plate is provided with three limiting belts.

Further, the protection curtain is a terylene curtain.

Further, the upper edge of the protective curtain is connected to the front end of the first air bag; the lower edge of the protective curtain is connected to the front end of the second air bag.

Further, an access door is arranged on the water facing side of the shield plate.

Further, a guide plate is arranged on the water facing side of the shield plate.

Further, in the area covered by the shield plate, the surface of the dam foundation is polished by concrete, and is coated with epoxy resin and a nano silicon coating.

In summary, the application has the following beneficial effects:

1. according to the dam lifting device, the first air bag and the second air bag are arranged between the inner side of the shield plate and the dam foundation, and the height of the lifted dam body is increased through the double-air-bag structure, so that the dam lifting efficiency is greatly improved compared with that of the existing single-air-bag air shield dam or rubber dam; the protection curtain is arranged between the first air bag and the second air bag, so that the problem that rubber is aged or the joint of the rubber is crosslinked due to the fact that ultraviolet rays irradiate the surface of the air bag for a long time can be solved, and the service life of the air shield dam is further prolonged.

2. The double-bag air shield dam can build waterfall water landscapes, improves ecological grade, is safe to operate, does not influence flood discharge safety of an original river channel, has sand discharge and environmental protection functions, and is of a flexible structure, and additional maintenance is hardly needed by a protection curtain, so that time and labor are saved.

Drawings

FIG. 1 is a schematic diagram of a double-bag air shield dam lifting state;

FIG. 2 is a schematic diagram of a double-bag air shield dam collapse state of the present application;

FIG. 3 is a schematic illustration of a dual bladder release linkage of the present application;

fig. 4 is a top view of the air shield dam of the present application.

Reference numerals illustrate:

1. a dam foundation; 2. a shield plate; 201. a deflector; 3. a gas filling pipe; 4. an access door; 5. a first air bag; 6. a second air bag; 7. a protective curtain; 8. an anti-blocking structure; 801. a first gasket; 802. a second gasket; 9. a limit belt.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Most of the existing air shield dams are single-bag air shield dams, the most outstanding problem of the single-bag air shield dams is that the height of the rising dams is limited, the rising dam height can be determined only by the thrust of one air bag to a shield plate after being filled with air, although the existing double-bag air shield dams are used in a continuous mode, the situation that the bag is damaged due to the fact that two air bags are arranged up and down in the double-bag air shield dams are easy to cause bag loss due to extrusion and friction between the air bags, and after long-term ultraviolet irradiation, the situation that the bag is pulled and broken due to polymer chain segment crosslinking between the rubber bags of the air bags also happens sometimes. The double-bag air shield dam provided by the application can solve the problem of dam lifting height, can also protect double-bag bags, and prolongs the service life of the air shield dam.

Referring to fig. 1, a double-bag air shield dam comprises a dam foundation 1, wherein a shield plate 2 is installed on the dam foundation 1, an air bag is arranged between the inner side of the shield plate 2 and the dam foundation 1, an air charging and discharging pipe 3 is laid in the dam foundation 1, and the air charging and discharging pipe 3 is communicated with the air bag; the air bags comprise a first air bag 5 and a second air bag 6, the air charging and discharging pipe 3 is respectively communicated with the first air bag 5 and the second air bag 6, and can simultaneously charge and discharge air to the two air bags so as to perform dam lifting and dam lowering processes, a protective curtain 7 is arranged between the first air bag 5 and the second air bag 6, and the protective curtain 7 mainly shields ultraviolet rays and prevents the contact surfaces of the two air bags from aging due to long-term irradiation.

In one embodiment, specifically, the first air bag 5 and the second air bag 6 are vertically stacked and arranged, the air charging and discharging pipe 3 is externally connected with an air pump to charge and discharge the two air bags simultaneously, and referring to fig. 2, a schematic diagram of a dam-descending state of the air shield dam is shown, the vertically stacked first air bag 5 and second air bag 6 are completely accommodated inside the shield plate 2, no extra space is occupied, and the same flood discharging effect as that of a single-bag air shield dam can be completely achieved.

Because the contact surface of the two air bags generates certain friction and pressure change in each inflation and deflation process, and the bag of the air shield dam is mainly made of vulcanized rubber, the high polymer material is extremely easy to be influenced by ultraviolet rays to generate chain segment fracture, or adhesion is generated due to long-term extrusion, so an anti-adhesion structure 8 is arranged between the first air bag 5 and the second air bag 6, and the loss of the double-bag air shield dam caused by ultraviolet irradiation is reduced.

In the above embodiments, in particular, with reference to fig. 3, the anti-adhesive means 8 comprise a first gasket 801 and a second gasket 802; the first gasket 801 is composed of a group of parallel tiny sheets with a certain thickness, and is attached to the surface of the first air bag 5, and the second gasket 802 is made of the same material as the first gasket 801 and is attached to the surface of the second air bag 6; the first gaskets 801 and the second gaskets 802 are arranged in a staggered manner, and the rubber adhesion caused by long-term large-area contact between the sacks can be effectively prevented by the design.

It can be appreciated that the materials of the first gasket 801 and the second gasket 802 need not be specific, such as a polyester gasket, a nylon gasket, or a vulcanized rubber gasket that is the same as the material of the bag, so long as the gasket materials can be used to generate a certain gap with the first air bag 5 and the second air bag 6 without scratching the bag.

In one embodiment, a limit belt 9 is arranged between the dam foundation 1 and the shield plate 2; one end of the limiting belt 9 is fixed in the anchoring groove of the dam foundation 1, and the other end of the limiting belt is fixed on the inner side wall of the shield plate 2.

In the above embodiment, specifically, three limiting straps 9 are disposed on each shield plate 2, and referring to fig. 4, the three limiting straps 9 are respectively connected to two sides and a middle of the shield plate 2, so as to provide uniform traction force to the shield plate 2.

In one embodiment, the protection curtain 7 is a terylene curtain, and the reflection and scattering effects of the ultraviolet light on the surface of the protection curtain can be increased by mixing an ultraviolet absorbent, such as ceramic micropowder or short fiber, into the terylene curtain, so that the influence of the ultraviolet light on the two air bags is reduced to the minimum.

In the above embodiment, the protection curtain 7 is specifically connected to the front end of the first air bag 5 at its upper edge; the lower edge of the protective curtain 7 is connected to the front end of the second air bag 6, and the protective part is mainly concentrated at the joint between the two bags.

In some embodiments, the water facing side of the shield plate 2 is provided with an access door 4, and when the air shield dam needs to be overhauled, the access door 4 is started to intercept the water level, and the air shield dam is provided with an overhauling space.

In some embodiments, the water facing side of the shield plate 2 is provided with a deflector 201, and the deflector 201 plays a role in enabling the incoming water to flow to the downstream more stably, and on the other hand, can form a better waterfall landscape to beautify the visual effect of the urban river.

In one embodiment, in the area where the shield plate 2 is movably covered, the surface of the dam foundation 1 is polished by concrete, and is coated with epoxy resin paint and nano silicon oxide paint, and the paint is subjected to leveling and smoothing treatment to prevent the damage to the bag below.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The double-bag air shield dam comprises a dam foundation (1), wherein a shield plate (2) is arranged on the dam foundation (1), an air bag is arranged between the inner side of the shield plate (2) and the dam foundation (1), an air charging and discharging pipe (3) is laid in the dam foundation (1), and the air charging and discharging pipe (3) is communicated with the air bag; the method is characterized in that: the air bags comprise a first air bag (5) and a second air bag (6), the air charging and discharging pipe (3) is respectively communicated with the first air bag (5) and the second air bag (6), and a protective curtain (7) is arranged between the first air bag (5) and the second air bag (6).

2. A double bladder air shield dam according to claim 1, wherein: the first air bag (5) and the second air bag (6) are stacked up and down, and an anti-adhesion structure (8) is arranged between the first air bag (5) and the second air bag (6).

3. A double bladder air shield dam according to claim 2, wherein: the anti-adhesion mechanism (8) comprises a first gasket (801) and a second gasket (802); the first gasket (801) is attached to the surface of the first air bag (5), and the second gasket (802) is attached to the surface of the second air bag (6); the first gaskets (801) and the second gaskets (802) are arranged in a staggered mode.

4. A double bladder air shield dam according to claim 1, wherein: a limit belt (9) is arranged between the dam foundation (1) and the shield plate (2); one end of the limiting belt (9) is fixed in the anchoring groove of the dam foundation (1), and the other end of the limiting belt is fixed on the inner side wall of the shield plate (2).

5. The double-bladder air shield dam according to claim 4, wherein: three limit belts (9) are arranged on each shield plate (2).

6. A double bladder air shield dam according to claim 2, wherein: the protection curtain (7) is a terylene curtain.

7. The double-bladder air shield dam of claim 6, wherein: the upper edge of the protective curtain (7) is connected to the front end of the first air bag (5); the lower edge of the protective curtain (7) is connected to the front end of the second air bag (6).

8. A double-bladder shield dam according to any of claims 1-7, wherein: an access door (4) is arranged on the water facing side of the shield plate (2).

9. A double-bladder shield dam according to any of claims 1-7, wherein: the shield plate (2) is provided with a guide plate (201) on the water facing side.