CN-122013712-A - Half-buried dam passing structure and method of concrete gravity dam fish lift

CN122013712ACN 122013712 ACN122013712 ACN 122013712ACN-122013712-A

Abstract

The invention belongs to the technical field of dam fish passing devices, and discloses a semi-buried dam passing structure and method of a concrete gravity dam lift, wherein a fish passing vertical shaft is arranged in a dam body, a horizontal channel is arranged on the side surface of the fish passing vertical shaft, a guide rail is fixed on the inner side array of the fish passing vertical shaft, a running steel rail is fixed on the bottom surface of the horizontal channel, a fish transporting vehicle is arranged in the horizontal channel and is movably connected with the running steel rail, a profile steel bent frame is arranged on the top surface of the dam body, a dam top trolley is arranged on the top surface of the profile steel bent frame, a fish transporting box is arranged at the bottom of a stop of the dam top, and the fish transporting box is in an axisymmetric structure relative to the dam top trolley; the fish transporting device comprises a dam body, a fish transporting box, a water-proof assembly and a conveying assembly, wherein the fish transporting box is arranged on the top surface of the fish passing vertical shaft and used for preventing rainwater from flowing into the fish passing vertical shaft, the conveying assembly is arranged between profile steel bent frames and used for communicating fish transporting boxes on two sides of the dam body, and the fish transporting box is prevented from moving on the top surface of the dam body to affect passing.

Inventors

LI WENJIE
LIN CHUNLAN
WANG CHUJUN
ZHANG XIN
WANG XUN
WANG JINGTAO
ZHANG CAIXIU
DENG LIANGJUN
YANG YIWEN
LI XIAOBANG
GAO RU
HUANG JINQUAN
YANG SHIJIE

Assignees

中国电建集团昆明勘测设计研究院有限公司

Dates

Publication Date: 20260512
Application Date: 20260323

Claims (8)

1. The utility model provides a half buried dam structure of concrete gravity dam lift, includes dam body (4), fish shaft (7) have been seted up in dam body (4), and fish shaft (7) run through the top surface of dam body (4), horizontal channel (5) have been seted up to the side of fish shaft (7), and horizontal channel (5) run through the side of dam body (4), the inboard array of fish shaft (7) is fixed with guide rail (8), the bottom surface of horizontal channel (5) is fixed with operation rail (6), be equipped with fortune fish car (9) in horizontal channel (5), and fortune fish car (9) and operation rail (6) swing joint, the top surface of dam body (4) is equipped with shaped steel bent frame (12), the top surface of shaped steel bent frame (12) is equipped with dam top platform truck (3), the bottom of dam top parking is equipped with fortune fish box (11), and fortune fish box (11) are axisymmetric structure about top platform truck (3); Characterized by further comprising: the waterproof assembly (1) is arranged on the top surface of the fish passing vertical shaft (7) and is used for preventing rainwater from flowing into the fish passing vertical shaft (7); The conveying assembly (2), the conveying assembly (2) is arranged between the profile steel bent frames (12) and is used for communicating the fish transporting boxes (11) on two sides of the dam body (4), and the fish transporting boxes (11) are prevented from moving on the top surface of the dam body (4) to affect the passing.
2. The half-buried dam passing structure of the concrete gravity dam fish lift according to claim 1, wherein the waterproof assembly (1) comprises a water blocking ridge (103), a first waterproof plate (101) and a second waterproof plate (104) are respectively arranged on the top surface of the water blocking ridge (103), the first waterproof plate (101) and the second waterproof plate (104) are respectively movably connected with the water blocking ridge (103), and a starting sensor (102) is respectively fixed on the top surface and the bottom surface of the first waterproof plate (101) and the second waterproof plate (104).
3. The half-buried dam passing structure of the concrete gravity dam fish lift according to claim 2, wherein guide grooves (108) are respectively formed in the top surfaces of the water retaining ridges (103), guide blocks (105) are respectively fixed on the bottom surfaces of the first waterproof plates (101) and the second waterproof plates (104), the guide blocks (105) are respectively movably connected with the guide grooves (108), two-way screw rods (106) are respectively arranged in the guide grooves (108), the two-way screw rods (106) are respectively in threaded connection with the guide blocks (105), and an adjusting motor (107) is respectively fixed at one ends of the two-way screw rods (106).
4. The half-buried dam passing structure of a concrete gravity dam fish lift according to claim 1, wherein the conveying assembly (2) comprises a communicating frame (201), the communicating frame (201) is fixed on the inner side of a profile steel bent frame (12), a gear strip (202) is fixed on the top surface of the communicating frame (201), and a limiting groove (205) is formed in the top surface of the communicating frame (201).
5. The half-buried dam passing structure of a concrete gravity dam lift according to claim 4, wherein a supporting plate (204) is arranged on the top surface of the communication frame (201), a limiting strip (210) is fixed on the bottom surface of the supporting plate (204), the limiting strips (210) are respectively and movably connected with the limiting grooves (205), a mobile motor (208) is fixed in the supporting plate (204), the output end of the mobile motor (208) penetrates through the side surface of the supporting plate (204), a transmission gear (203) is fixed at the output end of the mobile motor (208), and the transmission gear (203) is meshed with the gear strip (202).
6. The half-buried dam passing structure of a concrete gravity dam fish lift according to claim 5, wherein a connecting support (207) is fixed on the bottom surface of the supporting plate (204), a conveying fence (206) is arranged on the side surface of the connecting support (207), the conveying fence (206) is movably connected with the connecting support (207), a rotating motor (209) is fixed in the connecting support (207), and the output end of the rotating motor (209) is fixedly connected with the conveying fence (206).
7. The half-buried dam passing structure of the concrete gravity dam fish lift machine of claim 1 is characterized in that an overflow groove (14) is formed in the side face of the fish transporting box (11), an inclined surface seat (16) is arranged in the fish transporting box (11), the inclined surface seat (16) is movably connected with the fish transporting box (11), a lifting motor (17) is fixed in the fish transporting box (11), a lifting screw (10) is fixed at the output end of the lifting motor (17), the lifting screw (10) is in threaded connection with the inclined surface seat (16), a hoisting support (13) is fixed on the top face of the fish transporting box (11), guide wheels (15) are arranged on a side face array of the hoisting support (13), and the guide wheels (15) are movably connected with the guide rails (8).
8. A dam passing method of a half-buried dam passing structure of a concrete gravity dam fish lift is characterized by comprising the following steps: Sp1, after fish transporting boxes (11) placed on the fish transporting vehicle (9) are filled with fish needing to pass through a dam, the fish transporting vehicle (9) moves the fish transporting boxes (11) to the position right below the fish passing vertical shaft (7) along the running steel rail (6) in the horizontal channel (5); Sp2, then under the lifting of the dam crest trolley (3), the fish transporting box (11) moves upwards to one end of the conveying component (2) along the fish passing vertical shaft (7), and meanwhile, the other end of the conveying component (2) is also provided with the fish transporting box (11); Sp3, then the inclined plane seat (16) in the fish transporting box (11) moves upwards, water in the fish transporting box (11) and fish enter the communicating frame (201) together through the overflow groove (14), and then the conveying fence (206) in the conveying assembly (2) moves in the communicating frame (201) to drive the fish in the conveying frame to the upstream fish transporting box (11); Sp4, when all the fishes in the conveying frame enter the upstream fish transporting box (11), the inclined surface seat (16) in the upstream fish transporting box (11) continuously moves downwards to absorb all the water in the communicating frame (201); Sp5, finally, the downstream fish transporting box (11) can descend into the fish passing vertical shaft (7) for carrying out the next fish transportation, and the upstream fish transporting box (11) can descend into an upstream reservoir for carrying out fish reproduction.

Description

Half-buried dam passing structure and method of concrete gravity dam fish lift Technical Field The invention relates to the technical field of dam fish passing devices, in particular to a semi-buried dam passing structure and method of a concrete gravity dam fish lift. Background Along with the development and construction of water conservancy and hydropower engineering in China, natural river channels are cut off by river blocking structures such as sluice gates and dams, so that living environments of fishes are fragmented, and great influence is caused on the communication of fish genes. For this reason, in the hydraulic and hydroelectric engineering construction, constructors are actively seeking to adopt various engineering means to alleviate the influence on fish. The fish passing facilities in the low-head hydraulic and hydroelectric engineering such as the sluice and the like are more studied, the technology is relatively mature, but the fish passing problem of the high-head dam still plagues the whole hydraulic and hydroelectric engineering. As a semi-mechanical fish passing facility, the fish lift can overcome the influence of a junction water head and a dam height, occupies smaller area, has relatively lower construction cost, and has wide application prospect in medium and high dams, particularly ultra-high dams. The prior art has the following problems that the conventional half-buried dam passing structure of the medium and high concrete gravity dam-lift is almost completely in the open air, on one hand, the whole landscape design of the dam body is influenced, on the other hand, the equipment is easy to rust and age under the action of wind, sun and rain, and the updating and maintenance cost is high. Therefore, the semi-buried dam passing structure and method of the concrete gravity dam fish lift are provided. Disclosure of Invention The invention aims to solve the problems that main equipment is almost completely in the open air, on one hand, the whole landscape design of a dam body is influenced, and on the other hand, the equipment is easy to rust and age under the action of wind, sun, rain and shower, and the updating and maintenance cost is high; in addition, as the middle and high dams are built in western mountain gorge areas, the earthquake intensity is high, and the mountain valley wind is prevalent throughout the year, when the structure height or overhanging distance is large, the safety of the structure is difficult to ensure, and when the fish transporting box in the structure moves horizontally at the top of the dam body, the bottom of the profile steel bent frame cannot go through and walk, and the problem of great potential safety hazard exists. The invention adopts the following technical scheme for realizing the purposes: A semi-buried dam passing structure of a concrete gravity dam lift comprises a dam body, a fish passing vertical shaft is arranged in the dam body and penetrates through the top surface of the dam body, a horizontal channel is arranged on the side surface of the fish passing vertical shaft and penetrates through the side surface of the dam body, a guide rail is fixed on an inner side array of the fish passing vertical shaft, an operation steel rail is fixed on the bottom surface of the horizontal channel, a fish transporting vehicle is arranged in the horizontal channel and movably connected with the operation steel rail, a section steel bent frame is arranged on the top surface of the dam body, a dam top trolley is arranged on the top surface of the section steel bent frame, a fish transporting box is arranged at the bottom of a dam top stop and is in an axisymmetric structure relative to the dam top trolley, the dam further comprises a waterproof component which is arranged on the top surface of the fish passing vertical shaft and used for preventing rainwater from flowing into the fish passing vertical shaft, and a conveying component which is arranged between the section steel bent frame and is used for communicating the fish transporting boxes on two sides of the dam body to avoid moving and affecting the passing of the top surface of the dam body. As a further scheme of the invention, the waterproof assembly comprises a water blocking ridge, a first waterproof plate and a second waterproof plate are respectively arranged on the top surface of the water blocking ridge, the first waterproof plate and the second waterproof plate are respectively and movably connected with the water blocking ridge, and starting sensors are respectively fixed on the top surfaces and the bottom surfaces of the first waterproof plate and the second waterproof plate. As a further scheme of the invention, guide grooves are respectively formed in the top surfaces of the water retaining sills, guide blocks are respectively fixed on the bottom surfaces of the first waterproof plate and the second waterproof plate, the guide blocks are respectively and movably connected with the