CN119411611A

CN119411611A - A slope protection device for hydropower engineering

Info

Publication number: CN119411611A
Application number: CN202411688607.3A
Authority: CN
Inventors: 张婷; 黄子谦; 施齐欢; 姜威; 谢中凯; 李飞; 高灵; 杨晓勇
Original assignee: Zhejiang Institute of Hydraulics and Estuary
Current assignee: Zhejiang Institute of Hydraulics and Estuary
Priority date: 2024-11-25
Filing date: 2024-11-25
Publication date: 2025-02-11

Abstract

The invention discloses a slope protection device for a hydraulic power generation project, which relates to the technical field of hydraulic power generation projects and comprises a concrete slope, wherein an ecological box is vertically and upwards arranged on the inclined surface of the concrete slope at equal intervals, irrigation pipes are arranged at the upper ends of the ecological boxes, planting grooves which are in sliding fit with the ecological boxes are arranged in the ecological boxes, a first spring is connected between the bottom of each planting groove and the ecological boxes, a siphon pipe is arranged on the concrete slope, the outer wall of the siphon pipe is positioned above the ecological boxes close to the top end of the inclined surface, a one-way valve is arranged above the ecological boxes, and the one-way valve is connected with the irrigation pipes of the ecological boxes through pipelines.

Description

Hydroelectric power engineering slope protection device

Technical Field

The invention relates to the technical field of hydroelectric power engineering, in particular to a slope protection device of a hydroelectric power engineering.

Background

Hydroelectric generation, and research on engineering construction and production operation and other technical and economic problems of converting water energy into electric energy. The water energy utilized by hydroelectric power generation is mainly potential energy stored in a water body. In order to convert water energy into electric energy, hydropower stations of different types need to be built, slope protection needs to be arranged on two sides of each hydropower station, and slope protection refers to a collective term of various paving and planting on a slope surface for preventing the slope from being washed.

The hydroelectric power engineering can not be built in the areas with drought throughout the year, the water supply of the reservoir is required to be guaranteed to be normal, and then the normal operation of the hydroelectric power is guaranteed, the slope protection characteristics used by the hydroelectric power engineering mainly comprise ecological design principles, the slope protection is usually formed by adopting concrete pouring, and meanwhile, uniform planting grooves are reserved in the section of the slope protection, and the slope protection is used for planting flowers and plants after soil is filled.

The current hydroelectric engineering bank protection planting groove is usually with slope together slope setting, when the rainfall is great forms the flood, along with the growth of water level, the erosion of rainwater and water can both cause planting inslot soil's loss, leads to planting groove formation ponding simultaneously, and secondly when not forming the flood, the water level of water is located the bottom of bank protection generally, and planting groove does not contact the water source for a long time can lead to soil drier, is unfavorable for plant's growth, needs artifical periodic irrigation.

Disclosure of Invention

The technical scheme of the invention aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly aims to provide a slope protection device for hydroelectric power engineering, so as to solve the problems that soil loss in a planting groove is caused by rain water and water body scouring when flood is proposed in the prior art, and soil is dry because the planting groove is not contacted with a water source for a long time when no flood is formed.

In order to achieve the purpose, the technical scheme is that the slope protection device for the hydroelectric power engineering comprises a concrete slope body, wherein ecological boxes are vertically and upwards arranged on inclined surfaces of the concrete slope body at equal intervals, irrigation pipes are arranged at the upper ends of the ecological boxes, planting grooves which are in sliding fit with the ecological boxes are arranged in the ecological boxes, a first spring is connected between the bottoms of the planting grooves and the ecological boxes, siphon pipes are arranged on the concrete slope body, one-way valves are arranged on the outer walls of the siphon pipes and are located above the ecological boxes close to the top ends of the inclined surfaces, the one-way valves are connected with the irrigation pipes of the ecological boxes through pipelines, water absorption mechanisms are arranged between the ecological boxes of the concrete slope body close to the top ends of the inclined surfaces, and water cutting mechanisms are arranged inside the ecological boxes of the concrete slope body close to the bottom ends of the inclined surfaces.

Preferably, the bottom of ecological box and the watering pipe of its adjacent ecological box upper end are through the pipeline intercommunication, and the equidistant watering mouth that is provided with in bottom of watering pipe, the bottom that the concrete slope is close to the ecological box in inclined plane bottom is provided with the drain pipe that runs through the concrete slope outer wall, the bottom of planting the groove all is provided with the filter screen.

Preferably, the siphon is set to a U-shaped structure, one end of the siphon extends out of the side wall of the concrete slope and is located below the ecological box, the other end of the siphon extends to the side wall of the concrete slope and is located above the ecological box, one end of the siphon is provided with a vertically downward water outlet, the other end of the siphon is provided with a vertically downward water suction port, and the end part of the water outlet is located above the end part of the water suction port.

Preferably, the water absorbing mechanism comprises a first cylinder body arranged on the outer wall of the siphon pipe, the top of the first cylinder body is provided with an opening structure, a first piston in sliding fit with the first cylinder body is arranged in the first cylinder body, a first connecting rod in sealing sliding fit with the siphon pipe is connected to the bottom of the first piston, the bottom of the first connecting rod extends to the bottom of a filter screen at the bottom of a planting groove corresponding to the bottom of the first connecting rod, a cover body is arranged on the side wall of the ecological box, a second spring is connected to the inner wall of the cover body, and a pin rod in sliding fit with the side wall of the ecological box is connected to the end part of the second spring.

Preferably, the end part of the pin rod is provided with a conical surface structure, and a matched pin groove is formed in the inner part of the first connecting rod, which is positioned on the outer side of the conical surface structure.

Preferably, the water-break mechanism comprises a second cylinder body arranged at the bottom of the ecological tank, a second piston which is in sliding fit with the second cylinder body is arranged in the second cylinder body, a second connecting rod which is in sliding fit with the top of the second cylinder body is connected to the top of the second piston, a pressing block is connected to the bottom of a filter screen of the planting groove at the top end of the second connecting rod, a third spring sleeved outside the second connecting rod is connected between the pressing block and the second cylinder body, an air bag is arranged below the second cylinder body in the siphon, two ends of the air bag are respectively fixed with the inner wall of the siphon, the air bag is communicated with the second cylinder body through a pipeline, and an air hole is formed in the top of the second cylinder body.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, in a rainfall period, rainwater falls into the ecological box, and as the soil has water permeability, redundant rainwater seeps out through the filter screen at the bottom of the planting groove and is conveyed to the next ecological box through the pipeline and the irrigation pipe, and finally is discharged into a water body through the drain pipe at the bottom of the ecological box at the bottom, so that the drainage function in the ecological box is ensured, and water accumulation is prevented;

According to the invention, when the water level of the water body in the flood period is increased to be higher than that of the ecological box, the ecological box is vertically distributed upwards in a stepwise manner, and soil loss can not be caused under the flushing of rainwater and under the flushing of the water body in the flood period, so that compared with the traditional slope type planting groove body, the ecological box has a good water and soil loss prevention and control effect;

According to the invention, when the soil humidity in the planting groove is gradually reduced along with the long-time non-rainfall condition, the siphon is conducted under the action of the water cut-off mechanism, when the soil humidity in the planting groove in the topmost ecological tank reaches the lower weight, the planting groove slides upwards for a certain period of travel under the action of the water absorption mechanism, so that a larger pumping force is formed in the siphon, wherein the water outlet and the water suction port of the siphon are both positioned in the water body, the water suction port is deeper in the water body, the water outlet and the water suction port form a pressure difference, the siphon is sucked into the water body through the water suction port by utilizing the siphon principle, part of water flow can be led to a one-way valve, a pipeline and an irrigation pipe after the water body enters the siphon, the irrigation port at the bottom of the irrigation pipe is utilized to irrigate the planting groove, and under the drainage effect, the soil in the planting groove is sequentially conveyed into the ecological tank below until the weight of the planting groove in the bottommost ecological tank is increased to press a pressing block, and the second piston enables the air bag to expand through the pipeline to start pumping water, so that the water is automatically stopped when the soil in the planting groove is drier, the soil is not required to be filled, and the water is normally grown, and the water is normally controlled.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present invention;

FIG. 2 is an enlarged view of the invention at A in FIG. 1;

FIG. 3 is a schematic top view of the ecological box of the present invention;

fig. 4 is an enlarged view of the invention at B in fig. 1.

The concrete slope is shown as 1, a concrete slope body, 2, an ecological box, 21, a watering pipe, 22, a drain pipe, 23, a planting groove, 24, a first spring, 3, a siphon pipe, 31, a water outlet, 32, a water suction port, 4, a one-way valve, 5, a first cylinder, 51, a first piston, 52, a first connecting rod, 53, a cover body, 54, a second spring, 55, a pin rod, 6, a second cylinder, 61, a second piston, 62, a second connecting rod, 63, a pressing block, 64, a third spring, 65 and an air bag.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-4, the invention provides a technical scheme that a slope protection device for a hydroelectric power generation project comprises a concrete slope body 1, wherein an ecological box 2 is vertically and upwards arranged on an inclined surface of the concrete slope body 1 at equal intervals, irrigation pipes 21 are respectively arranged at the upper ends of the ecological box 2, planting grooves 23 which are in sliding fit with the ecological box 2 are respectively arranged in the ecological box 2, a first spring 24 is connected between the bottom of the planting grooves 23 and the ecological box 2, a siphon pipe 3 is arranged on the concrete slope body 1, a one-way valve 4 is arranged on the outer wall of the siphon pipe 3 above the ecological box 2 close to the top end of the inclined surface, the one-way valve 4 is connected with the irrigation pipes 21 of the ecological box 2 through pipelines, a water absorption mechanism is arranged between the ecological box 2 of the concrete slope body 1 close to the top end of the inclined surface and the siphon pipe 3, and a water shutoff mechanism is arranged in the ecological box 2 of the concrete slope body 1 close to the bottom end of the inclined surface.

The bottom of the ecological box 2 is communicated with the irrigation pipes 21 at the upper ends of the adjacent ecological boxes 2 through pipelines, irrigation ports are formed in the bottoms of the irrigation pipes 21 at equal intervals, a drain pipe 22 penetrating through the outer wall of the concrete slope 1 is arranged at the bottom of the ecological box 2 at the bottom of the concrete slope 1, and filter screens are arranged at the bottoms of the planting grooves 23.

The siphon 3 is set to U type structure, and the one end of siphon 3 extends concrete slope 1 lateral wall and is located ecological box 2 below to the other end of siphon 3 extends to concrete slope 1 lateral wall and is located ecological box 2 top, and the one end of siphon 3 is provided with vertical decurrent delivery port 31, and the other end of siphon 3 is provided with vertical decurrent water sucking mouth 32, and the tip of delivery port 31 is located the tip top of water sucking mouth 32.

The water absorbing mechanism comprises a first cylinder body 5 arranged on the outer wall of the siphon pipe 3, the top of the first cylinder body 5 is of an opening structure, a first piston 51 in sliding fit with the first cylinder body 5 is arranged in the first cylinder body 5, a first connecting rod 52 in sealing sliding fit with the siphon pipe 3 is connected to the bottom of the first piston 51, the bottom of the first connecting rod 52 extends to the bottom of a filter screen at the bottom of a planting groove 23 corresponding to the first connecting rod, a cover body 53 is arranged on the side wall of the ecological box 2, a second spring 54 is connected to the inner wall of the cover body 53, and a pin rod 55 in sliding fit with the side wall of the ecological box 2 is connected to the end of the second spring 54.

The end of the pin 55 is tapered, and the first connecting rod 52 has a fitting pin groove on the outside of the tapered.

The water-break mechanism comprises a second cylinder body 6 arranged at the bottom of the ecological box 2, a second piston 61 in sliding fit with the second cylinder body 6 is arranged in the second cylinder body 6, a second connecting rod 62 in sliding fit with the top of the second cylinder body 6 is connected to the top of the second piston 61, a pressing block 63 is connected to the bottom of a filter screen of the planting groove 23 at the top end of the second connecting rod 62, a third spring 64 sleeved outside the second connecting rod 62 is connected between the pressing block 63 and the second cylinder body 6, an air bag 65 is arranged below the second cylinder body 6 in the siphon 3, two ends of the air bag 65 are respectively fixed with the inner wall of the siphon 3, the air bag 65 is communicated with the second cylinder body 6 through a pipeline, and an air hole is formed in the top of the second cylinder body 6.

When the hydraulic power engineering slope protection device is used, firstly, as shown in fig. 1, after the planting groove 23 is positioned in the ecological box 2 and is filled with soil with certain humidity and plants are planted, the weight of the planting groove 23 compresses the first spring 24 to the maximum stroke, the sum of the weight of the soil with lower humidity in the planting groove 23 and the elasticity of the first spring 24 is just smaller than the elasticity of the first spring 24, and secondly, the water outlet 31 and the water suction port 32 of the siphon tube 3 are positioned under water;

then, in the rainfall period, rainwater falls into the ecological box 2, as the soil has water permeability, redundant rainwater seeps out through a filter screen at the bottom of the planting groove 23 and is conveyed to the next ecological box 2 through a pipeline and a watering pipe 21, and finally is discharged into water through a drain pipe 22 at the bottom of the bottommost ecological box 2, so that the drainage function in the ecological box 2 is ensured, water accumulation is prevented, meanwhile, the ecological box 2 is vertically distributed upwards in a stepwise manner, soil loss is not caused under the flushing of the water body under the flushing of the rainwater and under the flushing of flood, and compared with the traditional slope type planting groove body, the ecological box has good water and soil loss prevention and control effects;

Finally, when the water is not rained for a long time, as the water level is not contacted with the water under the ecological box 2 at the bottommost part, as the soil humidity in the planting groove 23 is gradually reduced, as shown in fig. 4, the third spring 64 is in a compressed state, the air bag 65 is in an expanded state, so that the air bag 65 seals the siphon pipe 3, after the weight of the planting groove 23 is reduced, the ecological box 2 at the bottommost part is positioned, the first compressed spring 24 pushes the planting groove 23 to slide upwards, the third spring 64 pushes the pressing block 63 to move upwards for resetting, the pressing block 63 drives the second connecting rod 62 to move upwards, the second connecting rod 62 drives the second piston 61 to slide upwards, the air of the air bag 65 can be pumped into the second cylinder 6 through a pipeline, the air bag 65 is in a contracted state at the moment, the siphon pipe 3 is conducted, when the soil humidity of the planting groove 23 in the ecological box 2 at the topmost part reaches the weight when the soil humidity is lower, at this time, the elasticity of the first spring 24 can push the planting groove 23, the planting groove 23 drives the first connecting rod 52 to move upwards, the pin groove at the lower end of the first connecting rod 52 presses the bottom of the conical surface at the end part of the pin rod 55, the pin rod 55 slides rightwards and presses the second spring 54, after the end part of the pin rod 55 moves out of the pin groove, the planting groove 23 slides upwards for a certain stroke under the action of the first spring 24, the planting groove 23 drives the first connecting rod 52 to move upwards, the first connecting rod 52 drives the first piston 51 to slide upwards in the first cylinder 5, the sliding of the first piston 51 forms larger suction force in the siphon pipe 3 because the opening of the one-way valve 4 can only convey into the irrigation pipe 21, the water outlet 31 and the water suction port 32 of the siphon pipe 3 are both positioned in the water body, the depth of the water suction port 32 is deeper, the water outlet 31 and the water suction port 32 forms pressure difference, after the water enters the siphon pipe 3, part of water flow can be led to the one-way valve 4, the pipeline and the irrigation pipe 21, the irrigation port at the bottom of the irrigation pipe 21 is utilized to irrigate the planting groove 23, under the drainage effect, the soil in the planting groove 23 is sequentially conveyed into the ecological box 2 downwards after reaching humidity saturation, the weight of the planting groove 23 in the topmost ecological box 2 compresses the first spring 24 to the maximum stroke along with the downward sliding of irrigation, the first piston 51 and the pin rod 55 are reset, the water conveying is not influenced when the weight of the planting groove 23 in the middle ecological box 2 changes and moves longitudinally, until the weight of the planting groove 23 in the bottommost ecological box 2 increases to press the pressing block 63, the second piston 61 enables the air bag 65 to inflate and expand to seal the siphon pipe 3, the water suction port 32 starts to stop pumping, so that the soil is automatically irrigated and supplemented when the soil in the planting groove 23 is drier, and the normal growth environment of plants in the planting groove 23 is ensured.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims

1. A slope protection device for a hydropower generation project, comprising a concrete slope body (1), characterized in that: the slope of the concrete slope body (1) is provided with eco-boxes (2) at equal intervals and vertically upward, the upper ends of the eco-boxes (2) are provided with irrigation pipes (21), the interior of the eco-boxes (2) is provided with planting grooves (23) that are slidably matched with the eco-boxes, a first spring (24) is connected between the bottom of the planting grooves (23) and the eco-boxes (2), a siphon (3) is provided on the concrete slope body (1), a one-way valve (4) is installed on the outer wall of the siphon (3) above the eco-box (2) near the top of the slope, and the one-way valve (4) is connected to the irrigation pipe (21) of the eco-box (2) through a pipeline, a water absorption mechanism is provided between the eco-box (2) near the top of the slope of the concrete slope body (1) and the siphon (3), and a water cut-off mechanism is provided inside the eco-box (2) near the bottom of the slope of the concrete slope body (1).

2. A hydropower engineering slope protection device according to claim 1, characterized in that: the bottom of the eco-box (2) is connected to the irrigation pipe (21) at the upper end of its adjacent eco-box (2) through a pipeline, and the bottom of the irrigation pipe (21) is provided with irrigation ports at equal intervals, the bottom of the eco-box (2) near the bottom end of the slope of the concrete slope (1) is provided with a drainage pipe (22) penetrating the outer wall of the concrete slope (1), and the bottom of the planting trough (23) is provided with a filter screen.

3. A hydropower engineering slope protection device according to claim 1, characterized in that: the siphon pipe (3) is arranged as a U-shaped structure, and one end of the siphon pipe (3) extends out of the side wall of the concrete slope (1) and is located below the eco-box (2), and the other end of the siphon pipe (3) extends to the side wall of the concrete slope (1) and is located above the eco-box (2), one end of the siphon pipe (3) is provided with a vertically downward water outlet (31), and the other end of the siphon pipe (3) is provided with a vertically downward water intake (32), and the end of the water outlet (31) is located above the end of the water intake (32).

4. A slope protection device for a hydropower project according to claim 1, characterized in that: the water absorption mechanism includes a first cylinder (5) arranged on the outer wall of the siphon tube (3), the top of the first cylinder (5) is arranged as an open structure, the interior of the first cylinder (5) is provided with a first piston (51) slidably matched with the siphon tube (3), the bottom of the first piston (51) is connected to a first connecting rod (52) sealingly and slidably matched with the siphon tube (3), the bottom of the first connecting rod (52) extends to the bottom of the filter screen at the bottom of the corresponding planting trough (23), the side wall of the eco-box (2) is provided with a cover body (53), the inner wall of the cover body (53) is connected to a second spring (54), and the end of the second spring (54) is connected to a pin rod (55) slidably matched with the side wall of the eco-box (2).

5. A hydropower engineering slope protection device according to claim 4, characterized in that the end of the pin rod (55) is arranged as a conical structure, and a matching pin groove is arranged inside the first connecting rod (52) and outside the conical structure.

6. A slope protection device for a hydropower project according to claim 1, characterized in that: the water cut-off mechanism comprises a second cylinder (6) arranged at the bottom of the eco-box (2), a second piston (61) slidably matched with the second cylinder (6) is arranged inside the second cylinder (6), the top of the second piston (61) is connected to a second connecting rod (62) slidably matched with the top of the second cylinder (6), the top of the second connecting rod (62) is located at the bottom of the filter screen of the planting trough (23) and is connected to a pressure block (63), a third spring (64) sleeved on the outside of the second connecting rod (62) is connected between the pressure block (63) and the second cylinder (6), an air bag (65) is arranged inside the siphon (3) below the second cylinder (6), two ends of the air bag (65) are respectively fixed to the inner wall of the siphon (3), and the air bag (65) is connected to the second cylinder (6) through a pipeline, and an air hole is arranged on the top of the second cylinder (6).