CN110644425A - Ecological retaining dam and construction method thereof - Google Patents

Ecological retaining dam and construction method thereof Download PDF

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Publication number
CN110644425A
CN110644425A CN201910856304.0A CN201910856304A CN110644425A CN 110644425 A CN110644425 A CN 110644425A CN 201910856304 A CN201910856304 A CN 201910856304A CN 110644425 A CN110644425 A CN 110644425A
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China
Prior art keywords
retaining dam
dam
shell
baffle
sliding groove
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CN110644425B (en
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不公告发明人
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Guangdong water conservancy and Hydropower Construction Co.,Ltd.
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王文昭
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/10Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B13/00Irrigation ditches, i.e. gravity flow, open channel water distribution systems
    • E02B13/02Closures for irrigation conduits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B8/00Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/04Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B8/00Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/04Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
    • E02B8/045Valves, slides, or the like; Arrangements therefor; Submerged sluice gates automatically movable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Revetment (AREA)

Abstract

The invention belongs to the technical field of water conservancy, and particularly relates to an ecological retaining dam and a construction method thereof; comprises a shell and a switch unit; the shell is internally provided with a cavity, an L-shaped chute is formed in the position, close to the cavity, of the shell, a water outlet is formed in the side wall of the cavity, stepped convex blocks and stepped grooves are respectively formed in two sides of the shell, and the stepped convex blocks of two adjacent shells can be inserted into the stepped grooves to realize sealing; the switch unit is connected in the cavity in a sliding manner and comprises a baffle plate, a support column and a rotating wheel; in the construction process of the retaining dam, the number of the shells can be determined according to the diameter of the river, so that the length of the retaining dam is determined, the length of the retaining dam is adjusted, the using effect of the retaining dam is further improved, the using range of the retaining dam is expanded, great convenience is brought to the installation and the disassembly of the retaining dam, a large amount of manpower and material resources are saved, and the working efficiency of the construction of the retaining dam is improved.

Description

Ecological retaining dam and construction method thereof
Technical Field
The invention belongs to the technical field of water conservancy, and particularly relates to an ecological retaining dam and a construction method thereof.
Background
The water retaining dam is a leading movable dam technology used for agricultural irrigation, fishery, ship lock, sea water tidal barrage, urban river, road landscape, engineering and hydropower station in the world. The water retaining dam is a world leading movable dam technology, is used for agricultural irrigation, fishery, ship locks, seawater moisture retention, urban river landscape, engineering and hydropower stations, has a scientific mechanical structure, is not resistant to water blocking, is not afraid of silt siltation, is not influenced by floaters, has a firm and reliable structure and strong flood impact resistance, overcomes all the defects of the traditional movable dam type, and has all the advantages of the traditional dam type; the traditional retaining dam is excavated to the bottom and then concrete pouring or retaining wall building is carried out, and the phenomenon of earth collapse easily occurs in the construction process. If a special supporting structure is required to be constructed smoothly, much cost is obviously saved and the construction period is shortened if the special supporting structure is not required. In addition, the traditional gravity type retaining dam has higher cost. Therefore, if a reasonable dam structure is adopted, the safety can be ensured, and the manufacturing cost can be saved, which is a subject faced by engineering personnel. When the river needs to be separated transiently, the fixed retaining dam is not suitable to be established, and due to different flood seasons in four seasons, the retaining dam is high in use requirement, the retaining dam needs to be moved conveniently, and the length of the retaining dam can be adjusted according to different terrains.
Disclosure of Invention
In order to make up the defects of the prior art, the problem that the dam needs to be moved conveniently and the length of the dam can be adjusted according to different terrains is solved; the invention provides an ecological retaining dam and a construction method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an ecological retaining dam which comprises a shell and a switch unit, wherein the shell is provided with a water inlet and a water outlet; the shell is internally provided with a cavity, an L-shaped chute is formed in the position, close to the cavity, of the shell, a water outlet is formed in the side wall of the cavity, stepped convex blocks and stepped grooves are respectively formed in two sides of the shell, and the stepped convex blocks of two adjacent shells can be inserted into the stepped grooves to realize sealing; the switch unit is connected in the cavity in a sliding manner and comprises a baffle plate, a support column and a rotating wheel; the baffle is connected in the cavity in a sliding manner; the supporting columns are connected in the L-shaped sliding grooves in a sliding mode, and racks are arranged on the side walls of the supporting columns; the rotating wheel is rotatably connected in the L-shaped sliding groove through the motor, is meshed with the rack, and can drive the supporting column to move upwards through the rotating wheel, so that supporting force is provided for the baffle; the opening and closing of the water outlet are realized through the matching of the shell and the opening and closing unit; when the water retaining dam works, after the water retaining dam is installed and a gate needs to be opened, the motor is controlled through the controller, the motor drives the rotating wheel to rotate, so that the supporting columns are driven to move downwards, when the supporting columns move downwards to the water drainage openings and are communicated with each other, the controller stops working, and water flow at the position with the higher water level flows to the position with the lower water level through the water drainage openings, so that the water flow is realized; when the gate needs to be closed, the controller controls the motor, and the motor drives the rotating wheel to rotate, so that the supporting column is driven to move upwards, the supporting column provides upward thrust for the baffle, and when the baffle is pushed to move upwards to block the water outlet, water flow on two sides of the water retaining dam is isolated; in the construction process of the retaining dam, the number of the shells can be determined according to the diameter of the river, so that the length of the retaining dam is determined, the length of the retaining dam is adjusted, the using effect of the retaining dam is further improved, the using range of the retaining dam is expanded, great convenience is brought to the installation and the disassembly of the retaining dam, a large amount of manpower and material resources are saved, and the working efficiency of the construction of the retaining dam is improved.
Preferably, when the support column slides to the position where the rotating wheel is meshed with the rack finally in the L-shaped sliding groove, namely the baffle is jacked to the highest position, the jacked height of the baffle can exceed the height of 60cm of the shell while the water discharge opening is blocked, and the use height of the dam is effectively improved; the during operation, the water level when the river is higher, when exceeding the height of casing, rotate through controller control motor, thereby it rotates to drive the rotation wheel, make the support column shift up, thereby with baffle jack-up, slide to the position department that rotates wheel and rack and mesh at last when the support column is in L shape spout, the baffle is jack-up to highest position department promptly, then the baffle is when plugging up the discharge opening this moment, can exceed casing 60cm, thereby effectively strengthened the application range of manger plate dam, the result of use of manger plate dam is improved, bring very big convenience for the staff.
Preferably, the baffle is transversely provided with a first sliding groove at a position close to the top end, and the height from the top end of the first sliding groove to the top end of the baffle is 5 cm; sealing blocks are symmetrically arranged at two ends of the first sliding chute, and the height of each sealing block is 55 cm; the sealing block is connected with the side wall of the first sliding groove through a spring, and a fixing rod is fixedly connected to the side wall of the sealing block close to the inner part of the first sliding groove; the end part of the fixed rod is provided with a steel rope, one end of the steel rope is fixedly connected to the end part of the fixed rod, the other end of the steel rope extends to the bottom end of the baffle and is fixedly connected with a balancing weight, and the balancing weight can be driven to move by the movement of the support column; through the matching of the sealing block, the fixed rod and the balancing weight, when the baffle is jacked up to the highest point, the gap between the adjacent shells can be sealed; when the water level of a river is high and exceeds the height of the shell, the motor is controlled to rotate through the controller, so that the rotating wheel is driven to rotate, the supporting column moves upwards, the baffle plates are jacked to the highest position, gaps exist between the baffle plates of the two adjacent shell bodies at the moment, the use of the water retaining dam is influenced, the sealing blocks can seal the gaps, when the baffle plates are jacked to the highest position by the supporting column, the balancing weight is clamped between the baffle plates and the supporting column at the moment, pressure cannot be generated on the sealing blocks, the sealing blocks are popped out under the action of spring elasticity, the sealing blocks of the two adjacent shell bodies abut against each other, and the gaps between the sealing blocks are blocked; when the baffle needs to move downwards, the controller controls the motor to rotate so as to drive the rotating wheel to rotate, the supporting column moves downwards, the supporting force borne by the balancing weight disappears, the balancing weight moves downwards under the action of gravity, the balancing weight pulls the sealing block to slide in the first sliding groove through the steel rope, and when the sealing block slides to be in contact with the side wall of the first sliding groove, the baffle moves downwards under the action of gravity, so that the baffle moves downwards; the upward movement and the downward movement of the whole baffle can be realized by controlling the motor through the controller, so that the manual direct operation is avoided, the moving speed of the baffle is improved, the working efficiency of the retaining dam is further improved, and a large amount of manpower and material resources are saved.
Preferably, the side wall of the sealing block is provided with a serrated sealing strip, and the sealing strips between two adjacent shells can be meshed with each other, so that the sealing effect between the two adjacent shells is enhanced; when the water level of a river is high and exceeds the height of the shell, the motor is controlled to rotate through the controller, so that the rotating wheel is driven to rotate, the supporting column moves upwards, the baffle plates are jacked to the highest position, gaps exist between the baffle plates of the two adjacent shell bodies at the moment, the use of the water retaining dam is influenced, the sealing blocks can seal the gaps, when the baffle plates are jacked to the highest position by the supporting column, the balancing weight is clamped between the baffle plates and the supporting column at the moment, pressure cannot be generated on the sealing blocks, the sealing blocks are popped out under the action of spring elasticity, the sealing blocks of the two adjacent shell bodies abut against each other, and the gaps between the sealing blocks are blocked; after the side wall of each sealing block is provided with the serrated sealing strip, the sealing effect between every two adjacent sealing blocks can be enhanced, so that the using effect of the retaining dam is improved, and great convenience is brought to workers.
Preferably, a second sliding groove is formed in the side wall, close to the supporting column, of the bottom end of the balancing weight, and a buffering unit is arranged in the second sliding groove; the buffer unit comprises a sliding block and a buffer rod; the sliding blocks are symmetrically and slidably connected in the second sliding groove through springs, and buffer rods are hinged on the sliding blocks; the rod parts of the two buffer rods are hinged with each other; the balancing weight is buffered in the falling process through the buffer unit, so that the service life of the retaining dam is prolonged; when the sealing device works, when the baffle needs to be moved downwards, the controller controls the motor to rotate so as to drive the rotating wheel to rotate, so that the supporting column moves downwards, the supporting force borne by the balancing weight disappears, the balancing weight moves downwards under the action of gravity, the balancing weight can pull the sealing block to slide in the first sliding groove through the steel rope, and when the sealing block slides to be in contact with the side wall of the first sliding groove, the baffle can move downwards under the action of gravity, so that the baffle can move downwards; in the in-process that moves down at the balancing weight, because inertia effect, make the balancing weight when falling to the support column tip, can produce great impact force, and the buffer unit that the balancing weight bottom set up can provide the cushioning effect, when the buffer beam of balancing weight bottom and support column surface contact, the buffer beam can drive the slider and slide to both sides, then the impact force of balancing weight is then effectively slowed down to the spring between slider and No. two spout lateral walls, thereby realize the buffering effect, make the life of manger plate dam improve greatly, reduce the replacement cost in the manger plate dam use, strengthen the result of use of manger plate dam.
Preferably, the surfaces of the stepped convex blocks and the stepped grooves are both provided with water-absorbing expansion rubber, so that the sealing effect between two adjacent shells is effectively enhanced; the drain opening is in a boss shape, and one end with a larger diameter of the drain opening is positioned at one side with higher water levels at two sides of the shell, so that the pressure applied to the drain opening is reduced, and the using effect of the retaining dam is improved; when the water retaining dam works, the stepped convex blocks of the two adjacent shells can be inserted into the stepped grooves to realize sealing, and because the surfaces of the stepped convex blocks and the stepped grooves are both provided with the water-absorbing expansion rubber, the water-absorbing expansion rubber can seal the stepped convex blocks and the stepped grooves when the water retaining dam works, so that the sealing performance of the water retaining dam is enhanced, and the using effect of the water retaining dam is improved; in addition, the drain opening is in a boss shape, and the end with the larger diameter of the drain opening is positioned on the side with the higher water level on the two sides of the shell, so that the pressure applied to the drain opening is smaller, the service life of the water retaining dam is prolonged, and the replacement cost of the water retaining dam in the using process is reduced.
A construction method of an ecological retaining dam, which is applied to the retaining dam of any one of claims 1 to 6, and which comprises the steps of:
s1: excavating earthwork of a river where a dam needs to be built, excavating a long-strip pit, and placing the excavated sludge aside for accumulation for subsequent use;
s2: installing the retaining dam, obtaining the length of the required retaining dam through preliminary measurement, determining the number of the required shells according to the length of the retaining dam, installing the prepared shells, and inserting the stepped convex block of one shell into the stepped groove of the other shell so as to seal the shells;
s3: fixing the retaining dam, inserting the installed retaining dam into the pit slot, filling the dug sludge into the pit slot, stacking sand bags on the sludge close to the retaining dam, fixing the retaining dam, and arranging a filter screen at the drain hole, thereby completing the construction of the retaining dam.
The invention has the following beneficial effects:
1. according to the ecological retaining dam and the construction method thereof, the opening and closing of the water discharge opening are realized through the matching of the shell and the opening and closing unit; the installation and the disassembly of the retaining dam are greatly convenient, a large amount of manpower and material resources are saved, and the working efficiency of the construction of the retaining dam is improved.
2. According to the ecological retaining dam and the construction method thereof, the balancing weight is buffered in the falling process through the buffer unit, so that the service life of the retaining dam is prolonged; the replacement cost of the retaining dam in the using process is reduced, and the using effect of the retaining dam is enhanced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a view showing the open state of the dam according to the present invention;
FIG. 2 is a view showing a closing state of the dam according to the present invention;
FIG. 3 is a view showing an operating state of the dam according to the present invention;
FIG. 4 is a cross-sectional view of the dam of the present invention;
FIG. 5 is a partial enlarged view of FIG. 4 at A;
FIG. 6 is a flow chart of the construction method of the present invention;
in the figure: the device comprises a shell 1, a cavity 11, an L-shaped chute 12, a water discharge opening 13, a stepped bump 14, a stepped groove 15, a switch unit 2, a baffle 21, a support column 22, a rack 221, a rotating wheel 23, a first chute 24, a sealing block 25, a sealing strip 251, a fixing rod 26, a steel rope 261, a balancing weight 27, a second chute 271, a buffer unit 28, a sliding block 281 and a buffer rod 282.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the ecological dam of the present invention comprises a housing 1 and a switch unit 2; a cavity 11 is arranged in the shell 1, an L-shaped chute 12 is formed in the shell 1 at a position close to the cavity 11, a water outlet 13 is formed in the side wall of the cavity 11, stepped convex blocks 14 and stepped grooves 15 are respectively arranged on two sides of the shell 1, and the stepped convex blocks 14 of two adjacent shells 1 can be inserted into the stepped grooves 15 to realize sealing; the switch unit 2 is connected in the cavity 11 in a sliding manner, and the switch unit 2 comprises a baffle plate 21, a support column 22 and a rotating wheel 23; the baffle 21 is connected in the cavity 11 in a sliding way; the supporting column 22 is in sliding connection in the L-shaped sliding groove 12, and a rack 221 is arranged on the side wall of the supporting column 22; the rotating wheel 23 is rotatably connected in the L-shaped sliding groove 12 through a motor, the rotating wheel 23 is meshed with the rack 221, and the supporting column 22 can be driven to move upwards through the rotating wheel 23, so that supporting force is provided for the baffle 21; the opening and closing of the water outlet 13 are realized through the matching of the shell 1 and the switch unit 2; when the dam works, after the dam is installed and the gate needs to be opened, the motor is controlled through the controller, the motor drives the rotating wheel 23 to rotate, so that the supporting column 22 is driven to move downwards, when the supporting column 22 moves downwards to the water outlet 13 and is communicated with each other, the controller stops working, and water flow at a higher water level position flows to a lower water level position through the water outlet 13, so that the water flow is realized; when the gate needs to be closed, the controller controls the motor, and the motor drives the rotating wheel 23 to rotate, so that the supporting column 22 is driven to move upwards, the supporting column 22 provides upward thrust for the baffle 21, and when the baffle 21 is pushed to move upwards to block the water outlet 13, water flow on two sides of the water retaining dam is isolated; in the construction process of the retaining dam, the number of the shells 1 can be determined through the diameter of the river, so that the length of the retaining dam is determined, the length of the retaining dam is adjusted, the using effect of the retaining dam is further improved, the using range of the retaining dam is expanded, great convenience is brought to the installation and the disassembly of the retaining dam, a large amount of manpower and material resources are saved, and the working efficiency of the construction of the retaining dam is improved.
As an embodiment of the present invention, when the supporting column 22 slides in the L-shaped sliding groove 12 to the position where the rotating wheel 23 is finally meshed with the rack 221, that is, when the baffle 21 is jacked up to the highest position, the jacked-up height of the baffle 21 can exceed the height of 160cm of the housing while blocking the drain opening 13, which effectively increases the usage height of the dam; the during operation, the water level when the river is higher, when exceeding casing 1's height, rotate through controller control motor, thereby it rotates to drive rotates wheel 23, make support column 22 shift up, thereby with baffle 21 jack-up, slide to rotating wheel 23 and rack 221 when the position department of meshing at last when support column 22 is in L shape spout 12, baffle 21 is by jack-up to highest position department promptly, then baffle 21 is when plugging up discharge opening 13 this moment, can exceed casing 160cm, thereby effectively strengthened the application range of manger plate dam, improve the result of use of manger plate dam, bring very big convenience for the staff.
As an embodiment of the invention, the baffle plate 21 is transversely provided with a first sliding groove 24 at a position close to the top end, and the height from the top end of the first sliding groove 24 to the top end of the baffle plate 21 is 5 cm; sealing blocks 25 are symmetrically arranged at two ends of the first sliding groove 24, and the height of each sealing block 25 is 55 cm; the sealing block 25 is connected with the side wall of the first sliding groove 24 through a spring, and a fixing rod 26 is fixedly connected to the side wall of the sealing block 25 close to the inner part of the first sliding groove 24; a steel rope 261 is arranged at the end part of the fixed rod 26, one end of the steel rope 261 is fixedly connected to the end part of the fixed rod 26, the other end of the steel rope 261 extends to the bottom end of the baffle 21 and is fixedly connected with a balancing weight 27, and the balancing weight 27 can be driven to move by the movement of the supporting column 22; through the matching of the sealing block 25, the fixing rod 26 and the balancing weight 27, when the baffle 21 is jacked up to the highest point, the gap between the adjacent shells 1 can be sealed; when the water level of a river is high and exceeds the height of the shell 1, the motor is controlled to rotate through the controller, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves upwards, the baffle 21 is jacked to the highest position, but a gap exists between the baffles 21 of the two adjacent shells 1 at the moment, the use of a water retaining dam is influenced, the sealing block 25 can seal the gap, when the baffle 21 is jacked to the highest position by the supporting column 22, the balancing weight 27 is clamped between the baffles 21 and the supporting column 22 at the moment and cannot generate pressure on the sealing block 25, the sealing block 25 is popped out under the action of spring elasticity, the sealing blocks 25 of the two adjacent shells 1 are mutually butted, and the gap between the sealing blocks is blocked; when the baffle 21 needs to be moved downwards, the controller controls the motor to rotate, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves downwards, the supporting force borne by the balancing weight 27 disappears, the balancing weight 27 moves downwards under the action of gravity, the balancing weight 27 pulls the sealing block 25 to slide in the first sliding groove 24 through the steel rope 261, and when the sealing block 25 slides to be in contact with the side wall of the first sliding groove 24, the baffle 21 moves downwards under the action of gravity, so that the baffle 21 moves downwards; the upward movement and downward movement of the whole baffle 21 can be realized by controlling the motor through the controller, so that the manual direct operation is avoided, the moving speed of the baffle 21 is improved, the working efficiency of the retaining dam is further improved, and a large amount of manpower and material resources are saved.
As an embodiment of the present invention, the sidewall of the sealing block 25 is provided with a serrated sealing strip 251, and the sealing strips 251 between two adjacent shells 1 can be engaged with each other, so as to enhance the sealing effect between two adjacent shells 1; when the water level of a river is high and exceeds the height of the shell 1, the motor is controlled to rotate through the controller, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves upwards, the baffle 21 is jacked to the highest position, but a gap exists between the baffles 21 of the two adjacent shells 1 at the moment, the use of a water retaining dam is influenced, the sealing block 25 can seal the gap, when the baffle 21 is jacked to the highest position by the supporting column 22, the balancing weight 27 is clamped between the baffles 21 and the supporting column 22 at the moment and cannot generate pressure on the sealing block 25, the sealing block 25 is popped out under the action of spring elasticity, the sealing blocks 25 of the two adjacent shells 1 are mutually butted, and the gap between the sealing blocks is blocked; after the side wall of the sealing block 25 is provided with the serrated sealing strip 251, the sealing effect between two adjacent sealing blocks 25 can be enhanced, so that the using effect of the retaining dam is improved, and great convenience is brought to workers.
As an embodiment of the present invention, a second sliding groove 271 is formed on a side wall of the bottom end of the counterweight 27 close to the supporting column 22, and a buffer unit 28 is arranged in the second sliding groove 271; the damping unit 28 includes a slider 281 and a damping lever 282; the sliding blocks 281 are symmetrically connected in the second sliding groove 271 in a sliding manner through springs, and buffering rods 282 are hinged on the sliding blocks 281; the rod parts of the two buffer rods 282 are hinged with each other; the balancing weight 27 is buffered in the falling process through the buffer unit 28, so that the service life of the retaining dam is prolonged; when the baffle 21 needs to be moved downwards in work, the controller controls the motor to rotate, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves downwards, the supporting force borne by the balancing weight 27 disappears, the balancing weight 27 moves downwards under the action of gravity, the sealing block 25 is pulled by the balancing weight 27 through the steel rope 261 to slide in the first sliding groove 24, and when the sealing block 25 slides to be in contact with the side wall of the first sliding groove 24, the baffle 21 moves downwards under the action of gravity, so that the baffle 21 moves downwards; in the moving down process of balancing weight 27, because inertia effect, make balancing weight 27 when falling to support column 22 tip, can produce great impact force, and buffer unit 28 that balancing weight 27 bottom set up can provide cushioning effect, when buffer bar 282 and support column 22 surface contact of balancing weight 27 bottom, buffer bar 282 can drive slider 281 and slide to both sides, then the spring between slider 281 and No. two spout 271 lateral walls then effectively slows down balancing weight 27's impact force, thereby realize the cushioning effect, make the life of retaining dam improve greatly, reduce the replacement cost in the retaining dam use, strengthen the result of use of retaining dam.
As an embodiment of the invention, the surfaces of the stepped convex blocks 14 and the stepped grooves 15 are both provided with water-swelling rubber, so that the sealing effect between two adjacent shells 1 is effectively enhanced; the drain opening 13 is in a boss shape, and one end of the drain opening 13 with a larger diameter is positioned at one side of the shell 1 with higher water levels at two sides, so that the pressure applied on the drain opening 13 is reduced, and the using effect of the water retaining dam is improved; when the water retaining dam works, the stepped convex blocks 14 of the two adjacent shells 1 can be inserted into the stepped grooves 15 to realize sealing when the water retaining dam is installed, and the water-absorbing expansion rubber is arranged on the surfaces of the stepped convex blocks 14 and the stepped grooves 15, so that when the water retaining dam works, the water-absorbing expansion rubber can seal the space between the stepped convex blocks 14 and the stepped grooves 15, the sealing performance of the water retaining dam is enhanced, and the using effect of the water retaining dam is improved; in addition, because the shape of the drain opening 13 is a boss shape, and the end with the larger diameter of the drain opening 13 is positioned at the side with the higher water level at the two sides of the shell 1, the pressure born by the drain opening 13 is smaller, thereby prolonging the service life of the dam and reducing the replacement cost in the use process of the dam.
A construction method of an ecological retaining dam, which is applied to the retaining dam of any one of claims 1 to 6, and which comprises the steps of:
s1: excavating earthwork of a river where a dam needs to be built, excavating a long-strip pit, and placing the excavated sludge aside for accumulation for subsequent use;
s2: installing the retaining dam, obtaining the length of the required retaining dam through preliminary measurement, determining the number of the required shells according to the length of the retaining dam, installing the prepared shells, and inserting the stepped convex block of one shell into the stepped groove of the other shell so as to seal the shells;
s3: fixing the retaining dam, inserting the installed retaining dam into the pit slot, filling the dug sludge into the pit slot, stacking sand bags on the sludge close to the retaining dam so as to fix the retaining dam, and arranging a filter screen at the drain hole so as to finish the construction of the retaining dam;
when the dam works, after the dam is installed and the gate needs to be opened, the motor is controlled through the controller, the motor drives the rotating wheel 23 to rotate, so that the supporting column 22 is driven to move downwards, when the supporting column 22 moves downwards to the water outlet 13 and is communicated with each other, the controller stops working, and water flow at a higher water level position flows to a lower water level position through the water outlet 13, so that the water flow is realized; when the gate needs to be closed, the controller controls the motor, and the motor drives the rotating wheel 23 to rotate, so that the supporting column 22 is driven to move upwards, the supporting column 22 provides upward thrust for the baffle 21, and when the baffle 21 is pushed to move upwards to block the water outlet 13, water flow on two sides of the water retaining dam is isolated; in the construction process of the retaining dam, the number of the shells 1 can be determined according to the diameter of a river, so that the length of the retaining dam is determined, the length adjustment of the retaining dam is realized, the use effect of the retaining dam is further improved, the use range of the retaining dam is expanded, great convenience is brought to the installation and the disassembly of the retaining dam, a large amount of manpower and material resources are saved, and the working efficiency of the construction of the retaining dam is improved; when the water level of the river is higher and exceeds the height of the shell 1, the motor is controlled to rotate through the controller, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves upwards, the baffle 21 is jacked up, when the supporting column 22 slides to the position where the rotating wheel 23 is meshed with the rack 221 finally in the L-shaped sliding groove 12, namely the baffle 21 is jacked up to the highest position, the baffle 21 can exceed 160cm of the shell while blocking the water drainage opening 13, the use range of the water retaining dam is effectively enlarged, the use effect of the water retaining dam is improved, and great convenience is brought to workers; when the water level of a river is high and exceeds the height of the shell 1, the motor is controlled to rotate through the controller, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves upwards, the baffle 21 is jacked to the highest position, but a gap exists between the baffles 21 of the two adjacent shells 1 at the moment, the use of a water retaining dam is influenced, the sealing block 25 can seal the gap, when the baffle 21 is jacked to the highest position by the supporting column 22, the balancing weight 27 is clamped between the baffles 21 and the supporting column 22 at the moment and cannot generate pressure on the sealing block 25, the sealing block 25 pops out under the action of the spring elasticity, the sealing blocks 25 of the two adjacent shells 1 mutually support, and the gap between the sealing blocks is blocked; when the baffle 21 needs to be moved downwards, the controller controls the motor to rotate, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves downwards, the supporting force borne by the balancing weight 27 disappears, the balancing weight 27 moves downwards under the action of gravity, the balancing weight 27 pulls the sealing block 25 to slide in the first sliding groove 24 through the steel rope 261, and when the sealing block 25 slides to be in contact with the side wall of the first sliding groove 24, the baffle 21 moves downwards under the action of gravity, so that the baffle 21 moves downwards; the motor can be controlled by the controller in the whole upward and downward moving process of the baffle 21, so that the manual direct operation is avoided, the moving speed of the baffle 21 is improved, the working efficiency of the dam is further improved, and a large amount of manpower and material resources are saved; when the water level of a river is high and exceeds the height of the shell 1, the motor is controlled to rotate through the controller, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves upwards, the baffle 21 is jacked to the highest position, but a gap exists between the baffles 21 of the two adjacent shells 1 at the moment, the use of a water retaining dam is influenced, the sealing block 25 can seal the gap, when the baffle 21 is jacked to the highest position by the supporting column 22, the balancing weight 27 is clamped between the baffles 21 and the supporting column 22 at the moment and cannot generate pressure on the sealing block 25, the sealing block 25 pops out under the action of the spring elasticity, the sealing blocks 25 of the two adjacent shells 1 mutually support, and the gap between the sealing blocks is blocked; after the serrated sealing strips 251 are arranged on the side walls of the sealing blocks 25, the sealing effect between two adjacent sealing blocks 25 can be enhanced, so that the using effect of the retaining dam is improved, and great convenience is brought to workers; when the baffle 21 needs to be moved downwards, the controller controls the motor to rotate, so that the rotating wheel 23 is driven to rotate, the supporting column 22 moves downwards, the supporting force borne by the balancing weight 27 disappears, the balancing weight 27 moves downwards under the action of gravity, the balancing weight 27 pulls the sealing block 25 to slide in the first sliding groove 24 through the steel rope 261, and when the sealing block 25 slides to be in contact with the side wall of the first sliding groove 24, the baffle 21 moves downwards under the action of gravity, so that the baffle 21 moves downwards; in the downward moving process of the counterweight block 27, due to the inertia effect, when the counterweight block 27 falls to the end of the support column 22, a large impact force is generated, the buffer unit 28 arranged at the bottom end of the counterweight block 27 can provide a buffer effect, when the buffer rod 282 at the bottom end of the counterweight block 27 is in surface contact with the support column 22, the buffer rod 282 can drive the slide block 281 to slide towards two sides, and the spring between the slide block 281 and the side wall of the second sliding groove 271 can effectively slow down the impact force of the counterweight block 27, so that the buffer effect is realized, the service life of the water retaining dam is greatly prolonged, the replacement cost in the use process of the water retaining dam is reduced, and the use effect of the water; when the water retaining dam is installed, the stepped convex blocks 14 of two adjacent shells 1 can be inserted into the stepped grooves 15 to realize sealing, and because the surfaces of the stepped convex blocks 14 and the stepped grooves 15 are both provided with water-absorbing expansion rubber, the water-absorbing expansion rubber can seal the stepped convex blocks 14 and the stepped grooves 15 when the water retaining dam works, so that the sealing performance of the water retaining dam is enhanced, and the using effect of the water retaining dam is improved; in addition, because the shape of the drain opening 13 is a boss shape, and the end with the larger diameter of the drain opening 13 is positioned at the side with the higher water level at the two sides of the shell 1, the pressure born by the drain opening 13 is smaller, thereby prolonging the service life of the dam and reducing the replacement cost in the use process of the dam.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides an ecological retaining dam which characterized in that: comprises a shell (1) and a switch unit (2); a cavity (11) is arranged in the shell (1), an L-shaped chute (12) is formed in the position, close to the cavity (11), of the shell (1), a water outlet (13) is formed in the side wall of the cavity (11), stepped convex blocks (14) and stepped grooves (15) are respectively arranged on two sides of the shell (1), and the stepped convex blocks (14) of two adjacent shells (1) can be inserted into the stepped grooves (15) to realize sealing; the switch unit (2) is connected in the cavity (11) in a sliding mode, and the switch unit (2) comprises a baffle plate (21), a supporting column (22) and a rotating wheel (23); the baffle (21) is connected in the cavity (11) in a sliding manner; the supporting column (22) is connected in the L-shaped sliding groove (12) in a sliding mode, and a rack (221) is arranged on the side wall of the supporting column (22); the rotating wheel (23) is rotatably connected in the L-shaped sliding groove (12) through a motor, the rotating wheel (23) is meshed with the rack (221), and the supporting column (22) can be driven to move upwards through the rotating wheel (23), so that supporting force is provided for the baffle (21); the opening and closing of the drain opening (13) are realized through the matching of the shell (1) and the opening and closing unit (2).
2. The ecological retaining dam of claim 1, wherein: when the supporting rod slides to the position where the rotating wheel (23) is finally meshed with the rack (221) in the L-shaped sliding groove (12), namely the baffle (21) is jacked to the highest position, the jacked height of the baffle (21) can exceed the height of 60cm of the shell (1) while the water discharge opening (13) is blocked, and the use height of the dam is effectively improved.
3. The ecological retaining dam of claim 2, wherein: a first sliding groove (24) is transversely formed in the position, close to the top end, of the baffle plate (21), and the height from the top end of the first sliding groove (24) to the top end of the baffle plate (21) is 5 cm; sealing blocks (25) are symmetrically arranged at two ends of the first sliding groove (24), and the height of each sealing block (25) is 55 cm; the sealing block (25) is connected with the side wall of the first sliding groove (24) through a spring, and a fixing rod (26) is fixedly connected to the side wall, close to the inside of the first sliding groove (24), of the sealing block (25); a steel rope (261) is arranged at the end part of the fixing rod (26), one end of the steel rope (261) is fixedly connected to the end part of the fixing rod (26), the other end of the steel rope (261) extends to the bottom end of the baffle (21) and is fixedly connected with a balancing weight (27), and the balancing weight (27) can be driven to move through the movement of the supporting column (22); through the matching of the sealing block (25), the fixing rod (26) and the balancing weight (27), when the baffle (21) is jacked up to the highest point, the gap between the adjacent shells (1) can be sealed.
4. The ecological retaining dam of claim 3, wherein: the side wall of the sealing block (25) is provided with a serrated sealing strip (251), and the sealing strips (251) between two adjacent shells (1) can be meshed with each other, so that the sealing effect between the two adjacent shells (1) is enhanced.
5. The ecological retaining dam of claim 3, wherein: a second sliding groove (271) is formed in the side wall, close to the supporting column (22), of the bottom end of the balancing weight (27), and a buffer unit (28) is arranged in the second sliding groove (271); the damping unit (28) comprises a slider (281) and a damping lever (282); the sliding blocks (281) are symmetrically and slidably connected in the second sliding groove (271) through springs, and buffer rods (282) are hinged to the sliding blocks (281); the rod parts of the two buffer rods (282) are hinged with each other; the balancing weight (27) is buffered in the falling process through the buffer unit (28), and the service life of the water retaining dam is prolonged.
6. The ecological retaining dam of claim 1, wherein: the surfaces of the stepped convex blocks (14) and the stepped grooves (15) are respectively provided with water-absorbing expansion rubber, so that the sealing effect between two adjacent shells (1) is effectively enhanced; the drain opening (13) is in a boss shape, and one end with the larger diameter of the drain opening (13) is positioned at one side with the higher water level at the two sides of the shell (1), so that the pressure applied on the drain opening (13) is reduced, and the using effect of the water retaining dam is improved.
7. The construction method of the ecological retaining dam is characterized by comprising the following steps: the construction method is applicable to the retaining dam of any one of claims 1 to 6, and comprises the following steps:
s1: excavating earthwork of a river where a dam needs to be built, excavating a long-strip pit, and placing the excavated sludge aside for accumulation for subsequent use;
s2: installing the retaining dam, obtaining the length of the required retaining dam through preliminary measurement, determining the number of the required shells according to the length of the retaining dam, installing the prepared shells, and inserting the stepped convex block of one shell into the stepped groove of the other shell so as to seal the shells;
s3: fixing the retaining dam, inserting the installed retaining dam into the pit slot, filling the dug sludge into the pit slot, stacking sand bags on the sludge close to the retaining dam, fixing the retaining dam, and arranging a filter screen at the drain hole, thereby completing the construction of the retaining dam.
CN201910856304.0A 2019-09-11 2019-09-11 Ecological retaining dam and construction method thereof Active CN110644425B (en)

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