阅读说明：本技术 一种淤地坝智能控制虹吸排水和柔性消力池系统 (Intelligent control siphon drainage and flexible stilling basin system for check dam ) 是由 武颖利 李威 田保宏 郭万里 皇甫英杰 吴冠宇 梁小卫 姜纯伟 龚丽飞 陈海波 于 2021-07-12 设计创作，主要内容包括：本发明涉及淤地坝、尾矿坝工程排水技术领域,且公开了一种淤地坝智能控制虹吸排水和柔性消力池系统,包括漂浮式取水箱、排水管、连接法兰、上凸式注水集气装置、下游侧排水管、坝体、柔性波纹管、柔性消力池系统和排水管浮子；所述排水管通过连接法兰与漂浮式取水箱连通,所述排水管通过排水管浮子漂浮于库区水面上,所述坝体上开设有上游排水管槽、下游排水管槽和坝顶过水涵道,所述凸式注水集气装置安装在坝体上,所述排水管和下游侧排水管分别铺设在上游排水管槽和坝顶过水涵道内。本发明适用于淤地坝、尾矿坝工程技术领域,有效的避免了现有排水系统存在的工程问题,能很好的满足淤地坝排水要求。(The invention relates to the technical field of drainage of engineering of a silt dam and a tailing dam, and discloses an intelligent control siphon drainage and flexible stilling basin system for the silt dam, which comprises a floating water taking tank, a drainage pipe, a connecting flange, an upward-protruding water injection and gas collection device, a downstream side drainage pipe, a dam body, a flexible corrugated pipe, a flexible stilling basin system and a drainage pipe floater, wherein the floating water taking tank is arranged on the upper part of the floating water taking tank; the water discharging pipe is communicated with the floating water taking tank through a connecting flange, the water discharging pipe floats on the water surface of the reservoir area through a water discharging pipe floater, an upstream water discharging pipe groove, a downstream water discharging pipe groove and a dam top water passing culvert are formed in the dam body, the convex water injection and gas collection device is installed on the dam body, and the water discharging pipe and the downstream water discharging pipe are respectively laid in the upstream water discharging pipe groove and the dam top water passing culvert. The invention is suitable for the technical field of the engineering of the silt dam and the tailing dam, effectively avoids the engineering problem of the existing drainage system, and can well meet the drainage requirement of the silt dam.)

1. An intelligent control siphon drainage and flexible stilling basin system for a silt dam is characterized by comprising a floating water taking tank (1), a drain pipe (2), a connecting flange (5), an upward-protruding water injection and gas collection device (8), a downstream side drain pipe (12), a dam body (13), a flexible corrugated pipe (27), a flexible stilling basin system (28) and a drain pipe floater (29);

the water discharge pipe (2) is communicated with the floating water taking tank (1) through a connecting flange (5), the water discharge pipe (2) floats on the water surface of the reservoir area through a water discharge pipe floater (29), the dam body (13) is provided with an upstream water discharge pipe groove (14), a downstream water discharge pipe groove (17) and a dam top water passing culvert (15), the convex water injection and gas collection device (8) is installed on the dam body (13), the water discharge pipe (2) and the downstream water discharge pipe (12) are respectively laid in the upstream water discharge pipe groove (14) and the dam top water passing culvert (15) and penetrate through the dam top water passing culvert (15) to be connected with the convex water injection and gas collection device (8), the convex water injection and gas collection device (8) is communicated with the downstream water discharge pipe (12), and the downstream water discharge pipe (12) is communicated with a water outlet pipe (30) through a flexible corrugated pipe (27);

a driving mechanism is arranged on the dam body (13), and the driving mechanism is connected with the flexible corrugated pipe (27) and the water outlet pipe (30);

an intelligent early warning energy supply system is arranged on the dam body (13) and is connected with the driving mechanism;

the flexible force-relief pool system (28) is arranged on the downstream side of the dam body (13).

2. The intelligent siphon drainage and flexible stilling system for the silt dam according to claim 1, wherein the intelligent early warning and energy supply system comprises a solar photovoltaic module (35), a video monitoring system (33), a rainfall water level monitoring instrument (34), a communication module (32) and a controller (36), the controller (36) is in control connection with the solar photovoltaic module (35), the video monitoring system (33), the rainfall water level monitoring instrument (34) and a driving mechanism through the communication module (32), and the solar photovoltaic module (35) is electrically connected with the driving mechanism.

3. The intelligent siphon drainage and flexible stilling pond system for the silt dam according to claim 1, wherein the upward convex type water injection and gas collection device (8) is communicated with an active and passive exhaust pipe (11) through an exhaust port (10), and the active and passive exhaust pipe (11) is communicated with a water outlet pipe (30) through an active exhaust port (25);

upward protruding formula water injection gas collection device (8) are laid and are leaned on the downstream side at the dam top, and the device upstream side import is low, and the downstream side goes out the water position height, forms the epirelief formula structure, is provided with at this structure top and takes valve water filling port (9), and the top is equipped with gas vent (10) to link to each other with initiative and passive blast pipe (11), take valve water filling port (9) and gas vent all with drain pipe (2) intercommunication.

4. The intelligent siphon drainage and flexible stilling system for the silt dam according to claim 1, wherein a one-way check valve (3) is fixedly installed at one end of the drainage pipe (2) located inside the floating water taking tank (1), an installation opening is formed in the bottom of the floating water taking tank (1), a trash rack (4) is fixedly installed at the installation opening, an adjustable buoyancy floating platform (6) is fixedly installed inside the floating water taking tank (1), and a floating platform water injection/drainage opening (7) is formed in one side of the adjustable buoyancy platform (6).

5. The intelligent siphon drainage and flexible force-relief pond system for the silt dam according to claim 1, wherein the active and passive exhaust pipes (11) are fixed on the downstream drain pipe (2) by flexible plastic pipes, and the connection between the active and passive exhaust pipes (11) and the tail end of the water outlet is designed to be an acute angle.

6. The intelligent siphon drainage and flexible stilling pond system for the silt dam according to claim 2, wherein the driving mechanism comprises a lifting winch (18), a lifting fixed pulley (19), two guys (20), a descending winch (21), a metal hinge bracket (22), a descending fixed pulley (23) and two hoisting rings (24), the lifting winch (18), the descending winch (21) and the metal hinge bracket (22) are all installed on the dam body (13), a wheel frame of the lifting fixed pulley (19) and a wheel frame of the descending fixed pulley (23) are all fixedly connected with the dam body (13), the water outlet pipe (30) is connected with one side of the metal hinge bracket (22) through a fixed buckle (26), the two hoisting rings (24) are respectively and fixedly installed on two sides of the water outlet pipe (30), one end of one guy (20) is fixedly connected with the hoisting ring (24), the other end of the cable (20) bypasses the lifting fixed pulley (19) and is wound with a winding roller of the lifting winch (18), one end of the other cable (20) is fixedly connected with the hanging ring (24), the other end of the cable (20) bypasses the descending fixed pulley (23) and is wound with a winding roller of the descending winch (21), and the lifting winch (18) and the descending winch (21) are in communication connection with the controller (36).

7. The intelligent siphon drainage and flexible stilling pond system for the silt dam according to claim 1, wherein the flexible assembled stilling pond (28) is assembled by filling pebbles into polypropylene geomembrane bags with super-weatherability, and is assembled according to 2-3 layers, and an impermeable membrane is arranged between the upper bag body and the lower bag body.

8. The intelligent control siphon drainage and flexible force-relief pool system for the silt dam according to claim 1, wherein the intelligent control siphon drainage and flexible force-relief pool system for the silt dam is characterized in that: the dam top water passing duct (15) is connected with a downstream drainage pipe groove (17), and the downstream drainage pipe groove (17) is provided with a downstream force eliminating step (16).

9. The intelligent siphon drainage and flexible stilling pond system of the silt dam according to claim 1, wherein the drainage pipes (2) are pvc hard pipes with the diameter of 20cm, 3-4 drainage pipes (2) are arranged in parallel according to actual drainage efficiency requirements, and the drainage pipes (2) share one floating water taking tank (1) and the upward-protruding water injection and gas collection device (8).

10. A intelligent siphon drainage and flexible stilling system for a silt dam according to claim 1, characterized in that a dam top drainage pipe (31) is laid on the top of the dam body (13).

Technical Field

The invention relates to the field of drainage of engineering of a check dam and a tailing dam, in particular to an intelligent control siphon drainage and flexible stilling basin system for the check dam.

Background

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. 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 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. By 11 months in 2019, 58776 check silty dams are shared in China, and the silty area is 927.57km 2. The silty dam achieves the effect of workers in the aspects of ecological protection of the yellow river basin and promotion of rural economic development.

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.

Most of the traditional check dam engineering adopts the combination of a through-dam culvert pipe and an upstream water collecting well to drain water in a reservoir area. By adopting the traditional drainage system, the drainage function is lost due to frequent pipeline blockage, so that the dam body is in a dangerous case and even breaks due to incapability of draining water. Meanwhile, the arrangement of the culvert pipes penetrating the dam is adopted, if the pipelines are made of concrete, the pipelines are easy to crack, so that safety hidden danger is caused, and the pipelines made of cast iron are corroded and damaged, so that the safety of the dam body is seriously influenced; the drainage wells are arranged in the upstream reservoir area, silt deposition cannot be effectively prevented, the drainage wells also need to ascend along with the deposition of the upstream reservoir area, and management and maintenance in the operation period are difficult.

Due to the defects of the drainage system of the check dam, the water damage accident and the dam break risk of the check dam are far more serious than those of the conventional earth and rockfill dam, and the water damage accident and the dam break risk become bottleneck problems restricting the development of the check dam.

Due to the fact that the number of the silty dams is large, the conditions are complex, professional management is lacked, problems cannot be found timely, people and mechanical equipment are needed to go to the site to carry out emergency rescue after dangerous situations are found, and the dangerous situations are further worsened due to information lag. The biggest dangerous condition of the check dam is mainly that the reservoir area is unsmooth in water drainage in the flood season, so that the reservoir water level is rapidly increased, and the safety of a dam body is damaged. Therefore, a set of remote intelligent management early warning system is urgently needed, problems can be found timely, a drainage system can be started remotely while early warning information is sent out, and the development of dangerous cases is slowed down.

The actual engineering problems faced by tailing dam drainage systems are similar to those of land siltation dams, and are not described in detail herein.

In order to solve the problems, the application provides an intelligent siphon drainage and flexible stilling basin system for a check dam.

Disclosure of Invention

Objects of the invention

The invention provides an intelligent siphon drainage and flexible stilling basin system for a check dam, which aims to solve the technical problems in the background art.

(II) technical scheme

In order to solve the problems, the invention provides an intelligent control siphon drainage and flexible stilling basin system for a silt dam, which comprises a floating water taking tank, a drainage pipe, a connecting flange, an upward convex water injection and gas collection device, a downstream side drainage pipe, a dam body, a flexible corrugated pipe, a flexible stilling basin system and a drainage pipe floater, wherein the floating water taking tank is arranged on the upper portion of the floating water taking tank;

the water discharge pipe is communicated with the floating water taking tank through a connecting flange, the water discharge pipe floats on the water surface of the reservoir area through a water discharge pipe floater, an upstream water discharge pipe groove, a downstream water discharge pipe groove and a dam top water passing culvert are formed in the dam body, the convex water injection and gas collection device is installed on the dam body, the water discharge pipe and the downstream water discharge pipe are respectively laid in the upstream water discharge pipe groove and the dam top water passing culvert and are connected with the upward convex water injection and gas collection device through the dam top water passing culvert, the upward convex water injection and gas collection device is communicated with the downstream water discharge pipe, and the downstream water discharge pipe is communicated with the water outlet pipe through a flexible corrugated pipe;

the dam body is provided with a driving mechanism, and the driving mechanism is connected with the flexible corrugated pipe and the water outlet pipe;

an intelligent early warning energy supply system is arranged on the dam body and is connected with the driving mechanism;

the flexible stilling basin system is arranged on the downstream side of the dam body.

Preferably, wisdom early warning energy supply system includes solar PV modules, video monitoring system, rainfall water level monitoring instrument, communication module, controller, the controller is respectively through communication module and solar PV modules, video monitoring system, rainfall water level monitoring instrument and actuating mechanism control connection, solar PV modules and actuating mechanism electric connection.

Preferably, the upward-convex water injection and gas collection device is communicated with an active and passive exhaust pipe through an exhaust port, and the active and passive exhaust pipe is communicated with the water outlet pipe through an active exhaust port;

the upward convex water injection and gas collection device is arranged on the downstream side close to the dam top, the inlet of the upstream side of the device is low, the water outlet position of the downstream side is high, an upward convex structure is formed, a water injection port with a valve is arranged at the top of the structure, an exhaust port is arranged at the top of the structure and is connected with an active exhaust pipe and a passive exhaust pipe, and the water injection port with the valve and the exhaust port are communicated with a drain pipe.

Preferably, the drain pipe is located the inside one end fixed mounting of the floating water tank of getting and has one-way check valve, the mounting hole has been seted up to the bottom of the floating water tank of getting, and mounting hole department fixed mounting has the trash rack, the inside fixed mounting of the floating water tank of getting has the adjustable flotation platform of buoyancy, the adjustable flotation platform of buoyancy has been seted up one side of the adjustable flotation platform of buoyancy and has been annotated/the outlet.

Preferably, the active and passive exhaust pipes are fixed on the downstream drain pipe by adopting flexible plastic pipes, and the joints of the active and passive exhaust pipes and the tail ends of the water outlets are designed by adopting acute angles.

Preferably, the driving mechanism comprises a lifting winch, a lifting fixed pulley, two pull ropes, a descending winch, a metal hinge bracket, a descending fixed pulley and two hanging rings, the lifting winch, the descending winch and the metal hinge bracket are all arranged on the dam body, a wheel carrier of the lifting fixed pulley and a wheel carrier of the descending fixed pulley are both fixedly connected with the dam body, the water outlet pipe is connected with one side of the metal hinge bracket through a fixed buckle, the two hanging rings are respectively and fixedly arranged on two sides of the water outlet pipe, one end of one pull rope is fixedly connected with the hanging rings, the other end of the pull rope bypasses the lifting fixed pulley and is wound with a winding roller of the lifting winch, one end of the other pull rope is fixedly connected with the hanging rings, the other end of the pull rope bypasses the descending fixed pulley and is wound with a winding roller of the descending winch, the lifting winch and the descending winch are both in communication connection with the controller, the functions of controlling the drainage speed and turning off and starting can be realized by adjusting the height of the downstream water outlet.

Preferably, the flexible assembled stilling pool is assembled by filling pebbles into a polypropylene geomembrane bag with super-weather resistance, and is assembled according to a layer, and the impermeable membrane is arranged between the upper bag body and the lower bag body.

Preferably, the dam top water channel is connected with a downstream drainage pipe groove, and the downstream drainage pipe groove is provided with a downstream force eliminating step.

Preferably, the drain pipes are pvc hard pipes with the diameter of 20cm, 3-4 drain pipes are arranged in parallel according to the actual drainage efficiency requirement, and share one floating water taking tank and one upward convex water injection and gas collection device.

Preferably, a dam top drain pipe is laid at the top of the dam body.

The technical scheme of the invention has the following beneficial technical effects:

the intelligent control siphon drainage of the silt dam can be realized, the upstream water taking adopts a floating water taking structure and can be freely adjusted along with the change of the water level of an upstream reservoir, the defect that a conventional water collecting well needs to be continuously raised along with the sedimentation of a reservoir area is avoided, and meanwhile, clear water on the surface layer of the upstream reservoir is extracted during drainage, so that the sediment loss is further reduced; the intelligent early warning energy supply system can realize remote intelligent control to adjust the height of the downstream water outlet so as to control the drainage speed and the shutdown and start of drainage; the active and passive exhaust pipes are added, so that the water injection is ensured to be smooth in the starting process of the device, and meanwhile, the air remained in the pipeline can be effectively discharged in the running process, so that the siphon drainage operation is ensured to be smoothly carried out; after the siphon water pump is installed, continuous and discontinuous siphon water drainage operation can be realized only by injecting water once, the defects of a conventional siphon pipe are avoided, extra energy is not needed in the whole water drainage process, and the problem that power supply is needed for conventional water pumping is avoided; by adopting the assembled flexible stilling pool device, cost reduction and efficiency improvement can be realized, and multiple assembling adjustment can be realized.

Drawings

FIG. 1 is a schematic structural view of an intelligent siphon drainage and flexible force-relieving pool system for a silt dam according to the present invention.

FIG. 2 is a partial structural schematic view of an intelligent siphon drainage and flexible force-relief pool system for a silt dam according to the present invention.

Fig. 3 is a schematic top view of a floating water intake box in an intelligent siphon drainage and flexible stilling basin system for a check dam according to the present invention.

Fig. 4 is a schematic top view of a convex water injection and gas collection device in an intelligent control siphon drainage and flexible stress relief pool system for a silt dam according to the present invention.

FIG. 5 is a system diagram of an intelligent control siphon drainage and flexible stilling basin system for a silt dam according to the present invention.

Reference numerals: 1. a floating water taking tank; 2. a drain pipe; 3. a one-way check valve; 4. a trash rack; 5. a connecting flange; 6. the buoyancy can be adjusted and the floating platform; 7. a floating platform water injection/discharge port; 8. the upward convex water injection and gas collection device; 9. a water filling port with a valve; 10. an exhaust port; 11. an active and passive exhaust pipe; 12. a downstream side drain pipe; 13. a dam body; 14. an upstream drain pipe trough; 15. a water channel is arranged at the top of the dam; 16. a downstream force absorbing step; 17. a downstream drain pipe tank; 18. lifting the winch; 19. lifting the fixed pulley; 20. a cable; 21. lowering the hoist; 22. a metal wire frame; 23. descending the fixed pulley; 24. a hoisting ring; 25. an active and passive exhaust port; 26. fixing the buckle; 27. a flexible bellows; 28. a flexible stilling pool system; 29. a drain pipe float; 30. a water outlet pipe; 31. a drain pipe at the top of the dam; 32. the system comprises a communication module, a video monitoring system 34, a rainfall water level monitoring instrument, a solar photovoltaic module 35 and a solar photovoltaic module; 36. and a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-5, the intelligent control siphon drainage and flexible stilling basin system for a silt dam according to the present invention comprises a floating water intake tank 1, a drain pipe 2, a connecting flange 5, an upward convex water injection and gas collection device 8, a downstream side drain pipe 12, a dam body 13, a flexible corrugated pipe 27, a flexible stilling basin system 28 and a drain pipe float 29;

the water discharge pipe 2 is communicated with the floating water taking tank 1 through a connecting flange 5, the water discharge pipe 2 floats on the water surface of the reservoir area through a water discharge pipe floater 29, an upstream water discharge pipe groove 14, a downstream water discharge pipe groove 17 and a dam top water passing culvert 15 are formed in the dam body 13, the convex water injection and gas collection device 8 is installed on the dam body 13, the water discharge pipe 2 and the downstream water discharge pipe 12 are respectively laid in the upstream water discharge pipe groove 14 and the dam top water passing culvert 15 and penetrate through the dam top water passing culvert 15 to be connected with the convex water injection and gas collection device 8, the convex water injection and gas collection device 8 is communicated with the downstream water discharge pipe 12, and the downstream water discharge pipe 12 is communicated with the water outlet pipe 30 through a flexible corrugated pipe 27 to form a complete siphon water discharge structure;

a driving mechanism is arranged on the dam body 13 and is connected with the flexible corrugated pipe 27 and the water outlet pipe 30;

an intelligent early warning energy supply system is arranged on the dam body 13 and is connected with the driving mechanism;

the flexible relief pool system 28 is provided on the downstream side of the dam 13.

In an optional embodiment, the intelligent early warning energy supply system comprises a solar photovoltaic module 35, a video monitoring system 33, a rainfall water level monitoring instrument 34, a communication module 32 and a controller 36, wherein the controller 36 is respectively in control connection with the solar photovoltaic module 35, the video monitoring system 33, the rainfall water level monitoring instrument 34 and a driving mechanism through the communication module 32, the solar photovoltaic module 35 is electrically connected with the driving mechanism, collected data are processed and analyzed, the controller 36 controls the driving mechanism to adjust the height of the water outlet pipe 30, remote intelligent control of the drainage speed of the reservoir area of the silt reservoir and control of starting-stopping and the like are achieved, and an early warning function is provided according to analysis of the monitored data.

In an alternative embodiment, the upward-convex water injection and gas collection device 8 is communicated with an active and passive exhaust pipe 11 through an exhaust port 10, and the active and passive exhaust pipe 11 is communicated with a water outlet pipe 30 through an active exhaust port 25; the water injection and gas collection can be conveniently carried out on the pipeline during starting, and the gas in the pipeline is discharged by matching with the active and passive exhaust pipes 11;

upward convex water injection gas collection device 8 lays at the dam top and leans on the downstream side, the device upstream side import is low, the downstream side play water position is high, form upward convex structure, be provided with at this structure top and take valve water filling port 9, the top is equipped with gas vent 10, and link to each other with active and passive blast pipe 11, take valve water filling port 9 and gas vent all with drain pipe 2 intercommunication, through the inside water injection of water filling port 9 to drain pipe 2, and through gas vent 10 with the interior air escape of drain pipe 2, realize siphon drainage function.

In an optional embodiment, one end of the drain pipe 2 located inside the floating water intake box 1 is fixedly provided with a one-way check valve 3, the bottom of the floating water intake box 1 is provided with a mounting opening, a trash rack 4 is fixedly arranged at the mounting opening, an adjustable buoyancy floating platform 6 is fixedly arranged inside the floating water intake box 1, one side of the adjustable buoyancy floating platform 6 is provided with a floating platform water injection/drainage opening 7, and the buoyancy of the adjustable buoyancy floating platform can be adjusted to realize that the water intake is submerged underwater during working. During the maintenance working condition and the period of not running in winter, the buoyancy of the floating platform 6 is improved to enable the water intake 1 to be separated from the water surface to realize the water discharging function, and the pipeline is prevented from being frozen and cracked in winter.

In an optional embodiment, the active and passive exhaust pipes 11 are fixed on the downstream drain pipe 2 by using flexible plastic pipes, the connection between the active and passive exhaust pipes 11 and the tail end of the water outlet is designed to be an acute angle, when water flow is rapidly discharged along the downstream drain pipe 2, negative pressure is formed at the connection between the active and passive exhaust pipes 11 and the tail end of the water outlet due to flow rate difference, and air remaining in the upward-convex water injection and air collection device 8 is sucked out, so that smooth and efficient operation of a siphon drainage system is guaranteed.

In an alternative embodiment, the driving mechanism comprises a lifting winch 18, a lifting fixed pulley 19, two guys 20, a descending winch 21, a metal hinge frame 22, a descending fixed pulley 23 and two hanging rings 24, wherein the lifting winch 18, the descending winch 21 and the metal hinge frame 22 are all arranged on the dam body 13, a wheel frame of the lifting fixed pulley 19 and a wheel frame of the descending fixed pulley 23 are all fixedly connected with the dam body 13, a water outlet pipe 30 is connected with one side of the metal hinge frame 22 through a fixed buckle 26, the two hanging rings 24 are respectively and fixedly arranged on two sides of the water outlet pipe 30, one end of one guy 20 is fixedly connected with the hanging ring 24, the other end of the guy 20 bypasses the lifting fixed pulley 19 and is wound with a winding roller of the lifting winch 18, one end of the other guy 20 is fixedly connected with the hanging ring 24, and the other end of the guy 20 bypasses the descending fixed pulley 23 and is wound with a winding roller of the descending winch 21, the lifting winch 18 and the descending winch 21 are in communication connection with the controller 36, and the functions of controlling the drainage speed and stopping and starting can be realized by turning over or loosening the metal hinge frame 22 and adjusting the height of a downstream water outlet;

in an alternative embodiment, the flexible assembled stilling pool 28 is assembled by filling pebbles into super-weather-resistant polypropylene geomembrane bags, the cobbles are assembled according to 2-3 layers, and an impermeable film is arranged between the upper bag body and the lower bag body. When the cost is saved conveniently and quickly, the blocks can be assembled again under the condition of siltation at the downstream, and the secondary construction cost is reduced.

In an optional embodiment, the dam top water passing duct 15 is connected with a downstream drainage pipe groove 17, and the downstream drainage pipe groove 17 is provided with a downstream absorption step 16, so that the flood discharge requirement of a reservoir area under the extreme rainfall working condition is prevented, the dam overflowing risk caused by overhigh reservoir water level is prevented, and the risk resistance of the dam body is improved.

In an alternative embodiment, the water discharge pipes 2 are pvc hard pipes with the diameter of 20cm, 3-4 water discharge pipes 2 are arranged in parallel according to the actual water discharge efficiency requirement, and the water discharge pipes 2 share one floating water taking box 1 and one upward convex water injection and gas collection device 8.

In an alternative embodiment, a dam top drain 31 is laid on the top of the dam 13.

The lifting of the outlet pipe 30 is achieved by lifting the hoist 18 and lowering the hoist 21.

It should be noted that, after the floating water intake box 1 is connected to the water discharge pipe 2 through the connecting flange 5, the part together with part of the water discharge pipe 2 floats on the upstream water surface of the dam 13, the water discharge pipe 2 is placed in the upstream water discharge pipe groove 14 of the dam 13, and is connected to the upward convex water injection and gas collection device 8 through the connecting flange 5 through the dam top water discharge culvert 15, and is connected to the downstream water discharge pipe 12 through the connecting flange 5, and the downstream water discharge pipe 12 is connected to the flexible corrugated pipe 27 and is connected to the water outlet, so as to form a complete siphon water discharge structure.

The siphon structure needs to be filled with water for the first start, before water is filled, the water outlet pipe 30 is lifted to the vertical direction through the lifting winch 18 of the driving system in combination with the lifting fixed pulley 19 and the inhaul cable 20, at the moment, the water outlet pipe 30 is at the highest point, then the pipeline is filled with water through the water filling port 9 with the valve on the upward-convex water filling and gas collecting device 8 by adopting an external water suction pump, because of the upward-convex structural design of the upward-convex water filling and gas collecting device 8, the water in the water filling pipeline firstly flows into the water discharging pipe 2 at the upstream side, because the floating water taking tank 1 is provided with the one-way check valve 3, the one-way check valve 3 is in the closed state at the moment, the water can be ensured to be filled into the water discharging pipe 2 at the upstream side, then the filled water turns over the upward-convex water filling and gas collecting device 8 to enter the water discharging pipe 12 at the downstream side, because the main and passive exhaust pipe 11 connected with the exhaust port 10 arranged on the upward-convex water filling and gas collecting device 8 is directly connected with the main and passive exhaust port 25 on the water outlet pipe 30, the smooth discharge of the gas can be ensured in the water injection process of the downstream side water discharge pipe 12, and the water injection is finished when the water body in the downstream side water discharge pipe 12 is level with the water port pipe 30.

It should be noted that after water injection, a siphon drainage function is realized, which is specifically as follows:

the inhaul cable 20 is driven by the descending winch 21, the inhaul cable 20 pulls the water outlet pipe 30 to descend to the lowest point through the descending fixed pulley 23, at the moment, the water outlet pipe 30 and the floating water taking tank 1 have obvious water level difference, the drainage function of a reservoir area of a silty dam is realized, meanwhile, due to the angle arrangement between the active and passive air outlets 25 and the water outlet pipe 30, negative pressure is generated when high-speed water flows through the active and passive air outlets 25, and air remained in the downstream side drain pipe 12 in the upward water injection and air collection device 8 is discharged out of a pipeline through the active and passive air outlet pipe 11.

In an alternative embodiment, the above difference of this embodiment is that the intelligent warning and energy supply system is used to adjust and close the drainage speed of the siphon drainage system. The method comprises the following specific steps:

the water outlet pipe 30 is lifted by the driving of the lifting winch 18, the water level difference between the water outlet pipe 30 and the floating water taking tank 1 is reduced, the drainage speed is reduced, the lowest water level of drainage of the silty dam can be controlled by controlling the height of the water outlet pipe 30, and when the water level of an upstream reservoir area is consistent with the height of the water outlet pipe 30, the siphon drainage system automatically stops drainage.

When the siphon drainage system needs to be shut down, the water outlet pipe 30 is lifted to the highest point only by being driven by the lifting winch 18, at the moment, due to the effect of the one-way check valve 3 arranged in the floating water taking tank 1, when the water outlet pipe 30 is higher than the floating water taking tank 1, the one-way check valve 3 is automatically closed, the whole siphon pipeline is ensured to be in a full water state, and the siphon drainage system is convenient to start and operate again next time.

In an alternative embodiment, the difference of this embodiment is that the siphon drainage system is emptied by the intelligent early warning energy supply system. The specific implementation is as follows:

in order to maintain and repair the system and prevent freezing in winter, the water in the siphon drainage system needs to be emptied. Firstly, water in the floating water taking tank 1 is discharged through the floating platform water injection/discharge port 7, so that the buoyancy of the buoyancy adjustable floating platform 6 is increased, the floating water taking tank 1 floats upwards, and the water inlet of the floating water taking tank 1 is separated from the water surface. At this time, the descending winch 21 is driven to place the water outlet pipe 30 at the lowest position, so that all water bodies in the siphon drainage system can be emptied.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.