CN216405324U

CN216405324U - Flexible water drainage device controlled by floating body of check dam

Info

Publication number: CN216405324U
Application number: CN202220128784.6U
Authority: CN
Inventors: 常兴; 李晓兰; 党恬敏; 党维勤; 李学勇; 董俊天; 刘盼
Original assignee: Shaanxi Yangling Lucheng Ecological Technology Consulting Co ltd
Current assignee: Shaanxi Yangling Lucheng Ecological Technology Consulting Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-04-29
Anticipated expiration: 2032-01-18

Abstract

A silt dam floating body control flexible water drainage device comprises a floating body, a flexible corrugated pipe, a connecting flange, a front stilling pool, a water drainage culvert pipe/hole and a water drainage open channel, wherein one end of the flexible corrugated pipe is connected with the front stilling pool through the connecting flange, the other end of the flexible corrugated pipe is connected with the floating body through a connecting rod, so that a water inlet can be lifted along with the floating body under the condition that external power is not needed in a silt dam project, the water drainage is automatically controlled, the labor capacity of pipe maintainers is reduced, and potential safety hazards caused by unreasonable opening of water drainage holes are eliminated.

Description

Flexible water drainage device controlled by floating body of check dam

Technical Field

The utility model relates to the field of drainage of small and medium-sized check dam engineering, in particular to a floating flexible drainage device for a check dam, which replaces the traditional horizontal drainage pipe engineering.

Background

China loess plateau region gully is vertical and horizontal, and the distribution of erosion gully is wide. The cutting is strong, so that the water and soil loss is serious, the vegetation is sparse, landslide and debris flow disasters frequently occur, the ecological environment is extremely fragile, and people are poor in life. The silty dam is an important engineering measure for water and soil conservation, silty land field building, traffic improvement and ecological protection in a loess plateau area.

The silty dam is a water and soil conservation project for managing gullies created by the precedents in the northwest region, and the history of the project can be traced back to the Ming dynasty. The pioneers struggle to obtain dry and waterlogged grain for conservation through 'dam-making and field-building', and meanwhile, a part of the trenches become terraces, so that the erosion process of the trenches is restrained. Since the silty dams are mostly small hydraulic projects constructed by the masses spontaneously, a considerable number of dams have no flood discharge facilities. Under the condition of extreme rainfall, a part of silt dams are damaged, the functions of sand blocking and field building are not existed, casualties can be caused, and the safe flood work becomes the key point of prevention and control in each year flood season.

In the traditional check dam engineering, most of the water discharging horizontal pipes and culvert pipes (tunnels) are adopted as water discharging devices, so that flood blocking and clear draining are realized, and reservoir area water discharging is carried out. Adopt traditional water discharging device, need have the geological conditions that accords with to lay the engineering, enough orderly domatic, can arrange out the slope ratio in order 1: 2 to 1: 3, an engineering foundation is arranged between the two adjacent pipes, and horizontal pipes are arranged. With the completion of the land right registration, the construction land occupation cost is increased, the procedure is complicated, and the procedure is difficult if basic farmlands and forest lands are met. The flexible water discharging device is adopted to replace the traditional horizontal pipe, so that the restriction factor of the engineering address condition can be cracked, the disturbance area of the engineering construction is reduced, and the engineering cost is reduced. And the construction can be conveniently carried out for the maintenance and reinforcement of the old dam for the drainage horizontal pipe project, and the cost is reduced. In addition, the floating body is used for controlling the inlet of the water discharging device to automatically lift, so that the water discharging device can be ensured to discharge clear water on the surface layer all the time without manual intervention operation, the working strength is reduced, and the potential safety hazard of the water discharging device or a dam body caused by too large or too small water discharging amount due to misoperation of the hole plug is ensured.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flexible horizontal pipe and floating body control water discharge system of a check dam, which is suitable for the technical field of medium and small check dam engineering, reduces the site selection requirement of the check dam, reduces the construction cost, facilitates the operation management, effectively avoids the engineering problem of the existing water discharge device and can well meet the drainage requirement of the check dam. In order to achieve the purpose, the utility model provides the following technical scheme:

a silt dam floating flexible water drainage device comprises a floating body, a flexible corrugated pipe, a connecting flange, a downstream water drainage open channel, a dam body, a front stilling pool and a water drainage culvert pipe/hole, wherein the water drainage culvert pipe/hole penetrates through the lower part of the dam body, the upstream of the water drainage culvert pipe/hole is connected with the front stilling pool, the downstream of the water drainage culvert is connected with the downstream water drainage open channel, one end of the flexible corrugated pipe is connected with the front stilling pool (28) through the connecting flange (5), the other end of the flexible corrugated pipe is connected with the floating body through a connecting rod, the floating body automatically ascends and descends along with the change of water level, and the height of a water inlet and the water inflow of the corrugated pipe are controlled.

The flexible corrugated pipe is in multiple sections, each section of flexible corrugated pipe is connected through a flange, and the joint is wrapped by floating objects, so that the flexible corrugated pipe is reinforced, and the corrugated pipe is prevented from bending downwards.

The floating body is square with a hollow middle part, a connecting rod penetrates through the inner wall of the square body, one end of the flexible corrugated pipe is provided with a clamp, the clamp is movably connected with the connecting rod, the flexible corrugated pipe can move up and down along the connecting rod, and the submerging depth and the water inflow of the water inlet can be controlled through the adjusting screw rod.

The hollow side walls around the floating body enclose the baffle, and the effect of blocking firewood is achieved.

The front stilling pool is cast in place by reinforced concrete, a steel flange is connected on the front stilling pool, and the side surface of the front stilling pool is connected with a culvert (pipe).

The culvert pipe that drains adopts precast concrete pipe or grout stone arch culvert, according to actual displacement demand, designs culvert pipe section size.

The front absorption basin is assembled by filling cobbles in super-weather-resistant polypropylene geomembrane bags, the front absorption basin is assembled according to 2-3 layers, and an impermeable film is arranged between the upper layer bag body and the lower layer bag body.

The water discharge culvert pipe adopts pvc hard pipes or holes with the diameter of 20cm, and 3-4 hard pipes or holes are arranged in parallel according to the actual drainage efficiency requirement.

The technical scheme of the utility model has the following beneficial technical effects:

1. the strict requirements of the drainage device of the silt dam on the terrains on two sides are met, the restriction on the selection of the dam site by the terrains is reduced, and the site selection of the newly-built silt dam is more convenient.

2. The device is adopted to replace the traditional horizontal pipe structure of grouted stone or reinforced concrete, so that the total investment of the dam engineering can be reduced. The device is used for repairing the damaged horizontal pipe, and is convenient and quick.

3. The automatic control of water discharge can be realized in the condition that external power is not needed in the check dam engineering, the labor capacity of people management and protection personnel is reduced, and the potential safety hazard caused by unreasonable opening of the water discharge hole is eliminated.

4. The water discharge amount is accurately controlled, and the water resource regulation and storage benefits of the silt dam can be better played.

Drawings

FIG. 1 is a schematic view of a flexible water discharge device controlled by a floating body of a check dam

FIG. 2 is a partial enlarged view of a flexible water discharge device controlled by a floating body of a check dam

Detailed Description

Example 1

A flexible water drainage device for controlling a floating body of a silt dam comprises the floating body 1, a flexible corrugated pipe 2, a connecting flange 5, a downstream water drainage open channel 12, a dam body 13, a front stilling pool 28 and a water drainage culvert pipe/tunnel 3, wherein the water drainage culvert pipe/tunnel 3 penetrates through the lower part of the dam body 13, the upstream of the water drainage culvert is connected with the front stilling pool 28, the downstream of the water drainage culvert is connected with the downstream water drainage open channel 12, one end of the flexible corrugated pipe 2 is connected with the front stilling pool 28 through the connecting flange 5, and the other end of the flexible corrugated pipe is connected with the floating body 1 through a connecting rod.

The flexible corrugated pipes 2 are in a plurality of sections, each section of flexible corrugated pipe 2 is connected through a buoyancy connecting piece 4, and the joints are wrapped by floaters.

Float body 1 for the square of middle fretwork, it has connecting rod 6 to run through on the square inner wall, and flexible corrugated pipe 2's one end has the clamp, clamp and connecting rod swing joint, and flexible corrugated pipe 2 can reciprocate along the connecting rod.

The floating body 1 is hollow, and the peripheral side walls can play a role in blocking firewood.

Claims

1. A silt dam floating body control flexible water discharging device comprises a floating body (1), a flexible corrugated pipe (2), a connecting flange (5), a downstream water discharging open channel (12), a dam body (13), a front stilling pool (28) and water discharging culvert pipes/tunnels (3), and is characterized in that the water discharging culvert pipes/tunnels (3) penetrate through the lower part of the dam body (13), the upstream of the water discharging culvert pipes/tunnels (3) is connected with the front stilling pool (28), the downstream of the water discharging culvert pipes/tunnels (3) is connected with the water discharging open channel (12), the flexible corrugated pipe (2) is used for introducing water of a silt dam into the front stilling pool (28), one end of the flexible corrugated pipe (2) is connected with the front stilling pool (28) through the connecting flange (5), the other end of the flexible corrugated pipe is connected with the floating body (1) through a connecting rod, the floating body (1) floats on the water surface and automatically rises and falls along with the change of the water level, the height and the water inflow of the water inlet of the corrugated pipe are controlled.

2. The flexible water discharge device for the control of the floating bodies of the silt dam according to claim 1, wherein the flexible corrugated pipe (2) is formed in a plurality of sections, each section of the flexible corrugated pipe (2) is connected by a flange, and the joint is wrapped by the floating objects (4), so that the corrugated pipe is reinforced, and the downward bending of the corrugated pipe is prevented.

3. The flexible water drainage device for controlling the floating body of the silt dam according to claim 1, wherein the floating body (1) is a square with a hollow center, the flexible corrugated pipe (2) is connected with the floating body (1) through a connecting piece, the connecting piece comprises a pipe hoop and a connecting rod (6), wherein the pipe hoop is arranged at the tail end of the flexible corrugated pipe (2), the pipe hoop is connected with the hollow center of the floating body (1) through the connecting rod (6), and a water inlet part of the corrugated pipe can rotate at an included angle of 90 degrees with the floating body.

4. The flexible water discharge device for controlling the floating bodies of the silt dam according to claim 1, wherein a connection rope is fixed to the floating body (1), and the end of the rope is fixed to the shore.

5. The flexible water discharge device for the control of the floating bodies of the silt dam according to claim 1, wherein the front stilling basin (28) is cast in place by reinforced concrete, is connected with a steel flange at the upper part, and is connected with the water discharge culvert pipe/tunnel (3) at the side surface.

6. The flexible water discharge device for the control of the floating bodies of the silt dam according to claim 1, wherein the water discharge culvert pipe/tunnel (3) adopts a precast concrete pipe or a grouted stone arch culvert, and the section size of the culvert pipe is designed according to the actual water discharge requirement.