CN217678931U - Weir dam with fish frog migration channel and automatic sand discharge function - Google Patents
Weir dam with fish frog migration channel and automatic sand discharge function Download PDFInfo
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- CN217678931U CN217678931U CN202221692446.1U CN202221692446U CN217678931U CN 217678931 U CN217678931 U CN 217678931U CN 202221692446 U CN202221692446 U CN 202221692446U CN 217678931 U CN217678931 U CN 217678931U
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Abstract
The utility model discloses a weir dam with fish frog migrates passageway and automatic sediment ejection function, it includes: a weir dam body; the automatic sand discharging system comprises a sand discharging culvert arranged on one side of the lower part of the dam body, a sand discharging gate arranged in the sand discharging culvert, a first driving device used for controlling the sand discharging gate to open or close the sand discharging culvert, and a stirrer used for stirring silt deposited in front of the dam body to be loose; the dam body is provided with a migration gate and a second driving device for driving the migration gate to open or close the fish frog migration channel; the monitoring device comprises an ultrasonic mud level meter, a wireless ultrasonic fish school detector and a signal receiving and transmitting device which is electrically connected with the ultrasonic mud level meter and the wireless ultrasonic fish school detector; the intelligent decision platform is electrically connected with the first driving device, the second driving device and the stirrer so as to control the first driving device, the second driving device and the stirrer to work; the intelligent decision platform is communicated with the signal transceiver.
Description
The technical field is as follows:
the utility model relates to a hydraulic engineering technical field refers in particular to a weir dam with fish frog migration passageway and automatic sediment ejection function.
The background art comprises the following steps:
the weir dam is used as a river-blocking building and has the functions of lifting the water level of a river channel, performing water diversion irrigation, generating electricity, drinking water, falling water landscape and the like.
At present, the built medium and small dam projects only consider the functions of water blocking and water lifting, and some of the medium and small dam projects are not even provided with a sand discharge gate or the sand discharge gate is opened and closed manually. Because the management is not in place, the arranged sand discharge gate cannot be opened as required, so that the upstream river channel of part of barrages is seriously silted, and the functions of the upstream river channel are atrophied and even lost; in addition, the traditional hydraulic engineering design does not attach enough importance to the animal migration channel, and according to research, most of small and medium-sized barrage projects are not provided with the fish and frog migration channel, so that the movement, the propagation and the migration of the fish and frog aquatic animals are extremely unfavorable, the living space of the fish and frog aquatic animals is cut, reduced or even completely blocked, and the current concept of ecological and environmental protection is not met.
In view of this, the present inventors propose the following.
The utility model has the following contents:
an object of the utility model is to overcome prior art's not enough, provide a weir dam with fish frog migrates passageway and automatic sediment ejection function.
In order to solve the technical problem, the utility model discloses a following technical scheme: the weir dam with the functions of the fish frog migration channel and automatic sand discharge comprises: a weir dam body; the automatic sand discharging system comprises a sand discharging culvert arranged on one side of the lower part of the dam body, a sand discharging gate arranged in the sand discharging culvert, a first driving device used for controlling the sand discharging gate to open or close the sand discharging culvert and a stirrer used for stirring silt deposited in front of the dam body to be loosened; the dam body is provided with a migration gate and a second driving device for driving the migration gate to open or close the fish frog migration channel; the monitoring device comprises an ultrasonic mud level meter for monitoring the front silting depth of the dam body, a wireless ultrasonic fish school detector for monitoring the quantity of fish schools and frogs, and a signal receiving and transmitting device electrically connected with the ultrasonic mud level meter and the wireless ultrasonic fish school detector; the intelligent decision platform is electrically connected with the first driving device, the second driving device and the stirrer so as to control the first driving device, the second driving device and the stirrer to work; the intelligent decision platform is communicated with the signal receiving and transmitting device to receive signals sent by the signal receiving and transmitting device.
Further, in the above technical scheme, the elevation of the bottom of the inlet of the sand discharging culvert is flush with the upstream riverbed of the dam body, wherein the sand discharging culvert is designed into a round culvert, and the diameter of the round culvert is greater than or equal to 0.5m; or the sand discharging culvert is designed to be a square culvert, and the diameter of the cross-sectional area of the sand passing through the square culvert is more than or equal to 0.25m 2 。
Further, in the above technical solution, the sand discharge gate is disposed on a downstream side of an inlet of the sand discharge culvert; the main body of the weir dam is provided with first slotted holes which are vertically distributed and communicated with the sand discharge culvert, and the sand discharge gate is arranged in the first slotted hole and can lift relative to the first slotted hole.
Further, in the above technical solution, the first driving device includes a first motor mounted on the top surface of the weir dam main body through a first support, and a first screw connected to a rotating shaft of the first motor and used for driving the sand discharge gate to ascend and descend.
Further, in the above technical solution, the agitator includes a second motor installed on a cantilever of the second support, a second screw connected to a rotating shaft of the second motor, and a plurality of blade-like blades disposed at a lower end of the second screw, the second support is installed on a top surface of the weir dam body, and the cantilever extends out of the weir dam body.
Further, in the above technical solution, the second support is mounted on the top surface of the weir dam body through a lifting device; or the lower end of the second screw is provided with a lifting device, and the knife-shaped blade is arranged at the lower end of the lifting device.
Furthermore, in the above technical scheme, the inlet bottom elevation of the fish frog migration channel is flush with the upstream riverbed of the dam body, the fish frog migration channel is designed to be a round culvert, the diameter of the fish frog migration channel is 0.2m to 0.5m, the fish frog migration channel is designed to be a square culvert, and the sand-passing cross-sectional area is 0.125m 2m to 0.785m 2 (ii) a The longitudinal ratio of the fish frog migration channel is reduced to 0.14-0.23; aquatic plants (320) are planted in the fish frog migration channel (3).
Furthermore, in the above technical solution, the bottom of the fish frog migration channel is provided with an inlet horizontal section, a vegetation step, a slope, and a deep water pool, the inlet horizontal section is located at the inlet of the fish frog migration channel, and the inlet horizontal section is followed by the slope; the planting steps are arranged at the bottom of the fish frog migration channel along the way, the spacing is designed to be 0.5-1.0 m, the upper side and the lower side of each planting step are connected with a slope, and the planting steps and the slope are arranged alternately, wherein each planting step comprises a rectangular groove pit, nutrient soil, cobblestones and a check net, and the rectangular groove pits are arranged at the bottom of the fish frog migration channel; the nutrient soil and the cobblestones are laid in the rectangular trough pit from bottom to top, and the gabion net covers the outside of the cobblestones to fix the cobblestones in the rectangular trough pit.
Furthermore, in the above technical solution, the weir dam body is provided with a movable groove and a closed groove on the inner walls of the left and right sides of the fish and frog migration passage respectively; the inner walls of the upper side and the lower side of the fish frog migration channel are respectively provided with a gate guide rail which is matched with the upper side and the lower side of the migration gate, and the migration gate is arranged in the movable groove and can slide along the gate guide rails to enter the closed groove so as to close the fish frog migration channel.
Furthermore, in the above technical solution, the second driving device includes a horizontal worm installed on the migration gate and distributed horizontally, a third motor installed on the top surface of the weir dam body through a third bracket, a third screw connected to a rotating shaft of the third motor, and a braking gear fixed to an upper end of the third screw and engaged with the horizontal worm.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect:
1. the utility model discloses an automatic monitoring weir dam main part upper reaches siltation degree of depth realizes the automatic sediment outflow function of sediment outflow gate, sets up the agitator simultaneously at sediment outflow gate front side and makes silt change arrange to low reaches, has both saved the manpower, has also improved the efficiency that the weir dam arranged the sand.
2. The utility model realizes the purposes that the fish frogs freely migrate from upstream to downstream and migrate from downstream to upstream to lay eggs; the method of controlling the flow rate by arranging the aquatic plants in the fish frog migration channel and monitoring the number of the downstream fish frogs to appropriately open the migration gate induces the fish frogs to freely pass through the dam main body for migration, and has high ecological benefit.
3. The utility model discloses utilize intelligent decision-making platform to realize long-range, automatic, efficient function mode, solved the difficult problem that traditional weir dam was arranged husky and the fish frog migrated, had important using value in the twin engineering of water conservancy digit.
Description of the drawings:
FIG. 1 is a plan view of a weir dam of the present invention;
FIG. 2 shows a migration gate of the present invention;
FIG. 3 is a sectional view of the automatic sand discharging system of the present invention;
FIG. 4 is a sectional view showing the arrangement of a migration passage of a fish frog;
FIG. 5 is a plan view of a migration passage for fish and frog in the present invention;
fig. 6 is a schematic view of the medium migration gate of the present invention in a fully opened state;
fig. 7 is a schematic view of the medium migration gate in a completely closed state.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
As shown in fig. 1 to 7, there is provided a weir dam having a fish frog migration passage and an automatic sand discharge function, comprising: the dam comprises a dam body 1, an automatic sand discharging system 2, a fish frog migration channel 3, a monitoring device 6 and an intelligent decision platform 7.
The dam body 1 is generally a gravity dam structure constructed by masonry stone or concrete materials and is positioned on the cross section of a river channel in the middle of river banks on two sides.
The automatic sand discharging system 2 comprises a sand discharging culvert 21 arranged on one side of the lower part of the dam body 1, a sand discharging gate 22 arranged in the sand discharging culvert 21, a first driving device 23 used for controlling the sand discharging gate 22 to open or close the sand discharging culvert 21 and a stirrer 24 used for stirring the silt deposited in front of the dam body 1 to be loose; when the first driving device 23 controls the sand discharge gate 22 to open the sand discharge culvert 21, sand discharge can be realized; when the first driving device 23 controls the sand discharge gate 22 to close the sand discharge culvert 21, water blocking can be realized. The stirrer 24 is used for stirring silt deposited in front of the weir dam main body 1 to be loose, so that the silt and the silt are discharged after the silt discharging culvert 21 is opened at the later stage, manpower is saved, and the silt discharging efficiency of the weir dam is improved.
The elevation of the bottom of the inlet of the sand discharging culvert 21 is flush with the upstream riverbed of the dam body, wherein the sand discharging culvert 21 is designed into a round culvert, and the diameter of the round culvert is more than or equal to 0.5m; or the sand discharge culvert 21 is designed as a square culvert, and the diameter of the cross section area of the sand passing through the square culvert is more than or equal to 0.25m 2 。
The sand discharge gate 22 is arranged on the downstream side of the inlet of the sand discharge culvert 21; the weir dam body 1 is provided with a first slot 11 which is vertically distributed and is communicated with a sand discharge culvert 21, and the sand discharge gate 22 is arranged in the first slot 11 and can be lifted relative to the first slot 11. The size of the section of the first slot 11 is slightly larger than that of the sand discharge gate 22, so that the sand discharge gate can be lifted and lowered conveniently.
The first driving means 23 includes a first motor 232 installed on the top surface of the weir main body 1 through a first bracket 231 and a first screw 233 connected to a rotation shaft of the first motor 232 and used for driving the sand discharge gate 22 to ascend and descend, and the first driving means 23 has a very simple structure. The sand discharge gate 22 is provided with a screw hole, and the first screw 233 is spirally inserted into the screw hole, so that when the first motor 232 drives the first screw 233 to rotate, the first screw 233 rotates in the inner screw hole, thereby driving the sand discharge gate 22 to lift in the first slot 11.
The battery 81 is connected to the first motor 232 to power the first motor 232. The intelligent decision platform 7 is connected with the first motor 232 through a wire matched with the first relay 82, and controls the first motor 232 to work.
The stirrer 24 includes a second motor 242 mounted on the cantilever 2411 of the second support 241, a second screw 243 connected to a rotating shaft of the second motor 242, and a plurality of blades 244 disposed at a lower end of the second screw 243, the second support 241 is mounted on the top surface of the weir dam body 1, and the cantilever 2411 extends out of the weir dam body 1, so that the stirrer 24 is disposed outside the weir dam body 1. In operation, the second motor 242 drives the second screw 243 to rotate so as to drive the blade 244 to rotate, thereby stirring the sludge to loosen the silt.
The battery 81 is connected to the second motor 242 to supply power to the second motor 242. The intelligent decision platform 7 is connected to the second motor 242 through a wire matching with the second relay 83, and controls the second motor 242 to work.
The stirrer 24 is designed to be lifted and lowered, and comprises the following two designs:
the first scheme is as follows: the second support 241 is installed on the top surface of the dam body 1 through a lifting device, so that the whole stirrer 24 can be lifted, when sand is not discharged, the stirrer 24 is lifted to a position above the top elevation of the inlet of the sand discharging culvert 21, the knife-shaped blade 244 is lowered to the position of the inlet of the sand discharging culvert before flood comes during sand discharging, then silt is stirred, and when flood comes, the knife-shaped blade 244 is lifted to a position above the top elevation of the inlet of the sand discharging culvert, so that the knife-shaped blade 244 is prevented from obstructing sand discharging; the lifting device is a product in the prior art, and the structure of the lifting device can be as follows: the lifting device comprises a bottom frame, a lifting frame which is arranged on the bottom frame in a vertically sliding mode, and an air cylinder or a hydraulic cylinder which is arranged on the bottom frame and used for driving the lifting frame to lift relative to the bottom frame, wherein the second support 241 is fixed on the lifting frame, and the bottom frame is fixed on the top surface of the weir dam main body 1.
The first scheme is as follows: the lower end of the second screw 243 is provided with a lifting device, and the knife blade 244 is provided at the lower end of the lifting device. When the sand is not discharged, the knife-shaped blade 244 is lifted to a position above the inlet ceiling of the sand discharging culvert 21, the knife-shaped blade 244 is lowered to the position above the inlet ceiling of the sand discharging culvert 21 before the flood comes during the sand discharging, then the silt is stirred, and when the flood comes, the stirrer is lifted to a position above the inlet ceiling of the sand discharging culvert to prevent the knife-shaped blade 244 from blocking the sand discharging. The lifting device is a product in the prior art, and the structure of the lifting device can be as follows: the lifting device comprises an underframe, a lifting frame which is arranged on the underframe in a vertically sliding mode, and a cylinder or a hydraulic cylinder which is arranged on the underframe and is used for driving the lifting frame to lift relative to the underframe, wherein the lifting frame is fixed at the lower end of the second screw rod 243 and can rotate along with the second screw rod 243, and a knife-shaped blade 244 is arranged at the lower end of a shaft body arranged at the lower end of the underframe, so that the knife-shaped blade 244 can also rotate along with the second screw rod 243.
The present embodiment is a preferred embodiment, and adopts the above first scheme, so that the installation is more convenient.
The fish frog migration channel 3 is arranged on the other side of the lower part of the dam main body 1, and the dam main body 1 is provided with a migration gate 4 and a second driving device 5 for driving the migration gate 4 to open or close the fish frog migration channel 3; the utility model discloses be provided with fish frog migration passageway 3, can realize the fish frog from the upper reaches to the free migration and follow the low reaches to the purpose of whirling spawning of upstream migration through opening fish frog migration passageway 3, to the activity of fish, frog class aquatic animal, multiply, migrate very favourable, make its living space reach the assurance, accord with the theory of ecological and the big protection of environment at present.
The fish frog migration channel 3 is positioned at the lower part of the dam body 1 close to the left side or the right side of the river bank and is positioned at the left side or the right side of the sand discharging culvert.
The inlet bottom elevation of the fish frog migration channel 3 is flush with the upstream riverbed of the weir dam main body 1, the fish frog migration channel 3 is designed to be a round culvert, the diameter of the fish frog migration channel is 0.2-0.5 m, the fish frog migration channel 3 is designed to be a square culvert, and the cross-sectional area of sand passing is 0.125m 2-0.785 m 2 (ii) a The longitudinal ratio of the fish frog migration channel 3 is reduced to 0.14-0.23.
The inner walls of the dam body 1 at the left side and the right side of the fish frog migration channel 3 are respectively provided with a movable groove 12 and a closed groove 13; the inner walls of the upper side and the lower side of the fish frog migration channel 3 are respectively provided with a gate guide rail 35 which is matched with the upper side and the lower side of the migration gate 4, the migration gate 4 is arranged in the movable groove 12 and can slide along the gate guide rails 35 to enter the closed groove 13 so as to close the fish frog migration channel 3. During specific work, the second driving device 5 drives the migration gate 4 to move towards the closed slot 13 in the movable slot 12, wherein the migration gate 4 is arranged in the movable slot 12 and can slide along the gate guide rail 35 to accurately enter the closed slot 13 so as to close the rana migratory passage 3.
In order to prevent the water loss of the migration gate 4 caused by water leakage, a water-stopping rubber can be arranged in the gate guide rail 35 and the closed groove 13, so that the migration gate 4 can effectively close the fish frog migration channel 3, and the water loss caused by water leakage is prevented.
The second driving device 5 comprises a horizontal worm 51 which is installed on the migration gate 4 and is distributed horizontally, a third motor 53 which is installed on the top surface of the barrage main body 1 through a third bracket 52, a third screw 54 which is connected with the rotating shaft of the third motor 53, and a braking gear 55 which is fixed on the upper end of the third screw 54 and is meshed with the horizontal worm 51.
The battery 81 is connected to the third motor 53 to supply power to the third motor 53. The intelligent decision platform 7 is connected with the third motor 53 through a wire and a third relay 84, and controls the third motor 53 to work.
The monitoring device 6 comprises an ultrasonic mud level meter 61 for monitoring the front silting depth of the dam body 1, a wireless ultrasonic fish school detector 62 for monitoring the quantity of fish schools and frogs, and a signal receiving and transmitting device 63 electrically connected with the ultrasonic mud level meter 61 and the wireless ultrasonic fish school detector 62; when the ultrasonic mud level meter 61 monitors that the deposition depth in front of the dam body 1 is too deep, the signal transceiver 63 sends a signal to the intelligent decision platform 7 to provide data support for the intelligent decision platform whether to start and close the sand discharge gate, and when the start condition is met, the intelligent decision platform 7 controls the first driving device 23 to work, and the first driving device 23 controls the sand discharge gate 22 to start the sand discharge culvert 21 so as to discharge sand; and can also be by the work of intelligent decision-making platform 7 control agitator, this agitator with the silt stirring of depositing before the weir dam to not hard up, open sediment discharging culvert 21 again to do benefit to rivers and make silt excrete to low reaches fast. The stirrer is mainly used for stirring silt deposited in front of the weir dam to be loose before the flood comes, and the silt is quickly discharged to the downstream by utilizing high-flow-rate water flow after the flood comes.
The wireless ultrasonic fish school detector 62 is used for monitoring the number of fish schools and frogs in the deep water pond and transmitting data to the intelligent decision platform 7, when no fish frog moves in the deep water pond, in order to avoid water loss, the intelligent decision platform 7 adjusts the opening degree of the migration gate 4 of the fish frog migration channel 3 through the second driving device 5 to obtain a proper flow velocity, and further induces the fish schools and the frogs to gather; when more fish frogs move in the deep water pond or are in the fish migration spawning period, the opening degree of the migration gate 4 of the fish frog migration channel 3 can be adjusted again, so that the fish frogs can naturally migrate upstream.
The intelligent decision platform 7 is electrically connected with the first driving device 23, the second driving device 5 and the stirrer 24 so as to control the first driving device 23, the second driving device 5 and the stirrer 24 to work; the intelligent decision platform 7 communicates with the signal transceiver 63 to receive the signal transmitted by the signal transceiver 63. The intelligent decision platform 7 may be a computer.
The intelligent decision platform 7 can access the automatic monitoring data of the water and rain conditions of the watershed, and provides instructions for starting and closing the sand discharge gate, the stirrer and the migration gate by combining information such as the silting depth of the upstream river channel of the barrage dam and the number of fish frogs in the deep water pond, which is sent by the monitoring device, so that the aim of remotely controlling various devices to automatically operate is fulfilled.
To sum up, the utility model discloses an automatic husky function of arranging that the husky floodgate was realized to automatic monitoring weir dam main part upper reaches siltation degree of depth sets up the agitator simultaneously and makes silt change row to low reaches at the husky floodgate front side, has both saved the manpower, has also improved the husky efficiency of weir dam row.
The utility model realizes the purposes that the fish frogs freely migrate from upstream to downstream and migrate from downstream to upstream to lay eggs; the fish frogs are induced to freely pass through the dam body for migration by means of arranging aquatic plants in the fish frog migration channel, monitoring the number of the downstream fish frogs to appropriately open the migration gate to control the flow rate and the like, and the ecological benefit is high. The utility model discloses utilize intelligent decision-making platform to realize long-range, automatic, efficient function mode, solved the difficult problem that traditional weir dam was arranged husky and the fish frog migrates, had important using value in the twin engineering of water conservancy digit.
Of course, the above description is only for the specific embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent changes or modifications made by the structure, characteristics and principles according to the claims of the present invention should be included in the claims of the present invention.
Claims (10)
1. The utility model provides a weir dam with fish frog migration passageway and automatic sediment ejection function which characterized in that: it includes:
a weir dam body (1);
the automatic sand discharging system (2) comprises a sand discharging culvert (21) arranged on one side of the lower part of the dam body (1), a sand discharging gate (22) arranged in the sand discharging culvert (21), a first driving device (23) used for controlling the sand discharging gate (22) to open or close the sand discharging culvert (21), and a stirrer (24) used for stirring silt deposited in front of the dam body (1) to be loosened;
the fish frog migration channel (3) is arranged on the other side of the lower part of the weir dam body (1), and the weir dam body (1) is provided with a migration gate (4) and a second driving device (5) for driving the migration gate (4) to open or close the fish frog migration channel (3);
the monitoring device (6) comprises an ultrasonic mud level meter (61) for monitoring the front silting depth of the dam body (1), a wireless ultrasonic fish school detector (62) for monitoring the quantity of fish schools and frogs, and a signal receiving and transmitting device (63) which is electrically connected with the ultrasonic mud level meter (61) and the wireless ultrasonic fish school detector (62);
the intelligent decision platform (7) is electrically connected with the first driving device (23), the second driving device (5) and the stirrer (24) to control the first driving device (23), the second driving device (5) and the stirrer (24) to work; the intelligent decision platform (7) is communicated with the signal transceiving device (63) to receive signals sent by the signal transceiving device (63).
2. The weir dam with the functions of a frog migration passage and automatic sand discharge according to claim 1, wherein: the elevation of the inlet bottom of the sand discharging culvert (21) is flush with the upstream riverbed of the dam body, wherein the sand discharging culvert (21) is designed into a round culvert, and the diameter of the round culvert is more than or equal to 0.5m; or the sand discharge culvert (21) is designed as a square culvert, and the diameter of the cross-section area of the sand passing through the square culvert is more than or equal to 0.25m 2 。
3. The weir dam with the functions of a fish frog migration passage and automatic sediment ejection according to claim 1, wherein: the sand discharge gate (22) is arranged on the downstream side of the inlet of the sand discharge culvert (21); the weir dam main body (1) is provided with first slotted holes (11) which are vertically distributed and are communicated with the sand discharge culvert (21), and the sand discharge gate (22) is arranged in the first slotted holes (11) and can lift relative to the first slotted holes (11).
4. The weir dam with the functions of a frog migration passage and automatic sand discharge according to claim 3, wherein: the first driving device (23) comprises a first motor (232) arranged on the top surface of the weir dam main body (1) through a first support (231) and a first screw (233) connected with a rotating shaft of the first motor (232) and used for driving the sand discharge gate (22) to ascend and descend.
5. The weir dam with the functions of a frog migration passage and automatic sand discharge according to any one of claims 1 to 4, wherein: the stirrer (24) comprises a second motor (242) arranged on a cantilever (2411) of a second support (241), a second screw (243) connected with a rotating shaft of the second motor (242), and a plurality of knife-shaped blades (244) arranged at the lower end of the second screw (243), the second support (241) is arranged on the top surface of the weir dam body (1), and the cantilever (2411) extends out of the weir dam body (1).
6. The weir dam with the functions of a frog migration passage and automatic sand discharge according to claim 5, wherein: the second support (241) is arranged on the top surface of the weir dam body (1) through a lifting device; alternatively, the lower end of the second screw (243) is provided with a lifting device, and the knife-shaped blade (244) is arranged at the lower end of the lifting device.
7. The weir dam with the functions of frog migration passage and automatic sand discharge according to any one of claims 1 to 4, wherein: the inlet bottom elevation of the fish frog migration channel (3) is flush with the upstream riverbed of the dam main body (1), the fish frog migration channel (3) is designed to be a round culvert, the diameter of the fish frog migration channel is 0.2-0.5 m, the fish frog migration channel (3) is designed to be a square culvert, and the cross-sectional area of sand passing is 0.125m2-0.785 m 2 (ii) a The longitudinal ratio of the fish frog migration channel (3) is reduced to 0.14-0.23; aquatic plants (320) are planted in the fish frog migration channel (3).
8. The weir dam with the functions of frog migration passage and automatic sand discharge according to any one of claims 1 to 4, wherein: an inlet horizontal section (31), a vegetation step (32), a slope (33) and a deep water pool (34) are arranged at the bottom of the fish and frog migration channel (3), the inlet horizontal section (31) is positioned at an inlet of the fish and frog migration channel (3), and the inlet horizontal section (31) is connected with the slope (33) in a rear mode; the planting steps (32) are arranged along the bottom of the fish frog migration channel (3), the spacing is designed to be 0.5-1.0 m, the upper side and the lower side of the planting steps (32) are connected with a slope (33), so that the planting steps (32) and the slope (33) are alternately arranged, wherein the planting steps (32) comprise rectangular groove pits, nutrient soil, cobblestones and a check net, and the rectangular groove pits are arranged at the bottom of the fish frog migration channel (3); the nutrient soil and the cobblestones are laid in the rectangular trough pit from bottom to top, and the gabion net covers the outside of the cobblestones to fix the cobblestones in the rectangular trough pit.
9. The weir dam with the functions of a frog migration passage and automatic sand discharge according to claim 8, wherein: the inner walls of the dam body (1) on the left side and the right side of the fish frog migration channel (3) are respectively provided with a movable groove (12) and a closed groove (13); the inner walls of the upper side and the lower side of the fish frog migration channel (3) are provided with gate guide rails (35) which are matched with the upper side and the lower side of the migration gate (4) in an installing mode, the migration gate (4) is arranged in the movable groove (12), and can slide along the gate guide rails (35) to enter the closed groove (13) so as to close the fish frog migration channel (3).
10. The weir dam with the functions of a frog migration passage and automatic sand discharge according to claim 9, wherein: the second driving device (5) comprises horizontal worms (51) which are arranged on the migration gate (4) and are distributed horizontally, a third motor (53) which is arranged on the top surface of the dam body (1) through a third support (52), a third screw (54) which is connected with the rotating shaft of the third motor (53), and a braking gear (55) which is fixed at the upper end of the third screw (54) and is meshed with the horizontal worm (51).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116446348A (en) * | 2023-06-16 | 2023-07-18 | 山东大禹水务建设集团有限公司 | Water conservancy hydropower station water blocking dam with sediment separation function |
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2022
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116446348A (en) * | 2023-06-16 | 2023-07-18 | 山东大禹水务建设集团有限公司 | Water conservancy hydropower station water blocking dam with sediment separation function |
| CN116446348B (en) * | 2023-06-16 | 2023-08-18 | 山东大禹水务建设集团有限公司 | Water conservancy hydropower station water blocking dam with sediment separation function |
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