Method for closing tide gate of super-long-span shore-controlled floating body

Abstract

The application discloses a closing method of a super-large-span shore-controlled floating body chevron gate tide gate, which comprises the following steps: firstly, opening the rotating gate, emptying the medium in the water-stopping bag, and making the supporting rod in a retracted state to form a flow passage at the bottom of the gate body; then, rotating the gate body to the center of the river channel through a balance opening and closing device until the heads of the two gate bodies are closed and connected to form a stable three-hinged arch structure; then, extending the supporting rod to support on the gate bottom plate, inflating the water-stopping bag to block the flow passage; finally, closing the rotating gate to complete the closing operation. The tide gate adopting the "gate-in-gate" design has the characteristics of stable structure, flexible opening and closing, safe operation, convenient maintenance and the like, and solves the problem of water stagnation side inclination in the opening and closing process of the floating body chevron gate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tide sluice, in particular to a closing method of super-large-span shore-controlled floating body miter gate tide sluice. BACKGROUND

[0002] With the continuous rise of global temperature, the sea level rises slowly, and the land continues to subside, thus causing the disasters such as seawater backflow and urban waterlogging in coastal areas during flood season. In order to protect the safety of life and property of people in coastal cities, the flood prevention wall or tide sluice can be built. In actual construction, because the flood prevention wall project has large investment and is easy to damage the unique waterfront environment of the coastal city, therefore, the super-large-span river of 400m to 500m is mostly built in the form of tide sluice to resist storm surge. However, no matter which form of tide sluice is used, the sluice pier needs to be set in the water, thus causing great negative influence on navigation, original river hydrology and river regime in the construction stage, operation stage and maintenance stage. SUMMARY

[0003] In order to solve the above problems, the present application provides a closing method of super-large-span shore-controlled floating body miter gate tide sluice, which can adopt the following technical scheme:

[0004] The closing method of super-large-span shore-controlled floating body miter gate tide sluice, the tide sluice comprises a gate body, a flow passage is formed in the gate body, a rotating gate is arranged in the flow passage, the rotating gate has a closed state of closing the flow passage and an open state of allowing water flow, the gate body is arranged at intervals with a gate bottom plate, an inflatable water stop bag and a telescopic support rod are arranged at the bottom of the gate body, the head of the gate body is located on the river side outside the river, the tail of the gate body is connected with a balance opening and closing device, and the balance opening and closing device is arranged on the two banks of the river side in the river.

[0005] The closing method comprises the following steps: first, opening the rotating gate, emptying the medium in the water stop bag, and making the support rod in the contracted state to form a flow passage at the bottom of the gate body, then rotating the gate body to the center of the river through the balance opening and closing device, until the heads of the two gate bodies are closed and connected to form a stable three-hinged arch structure, then extending the support rod to support on the gate bottom plate, filling water in the water stop bag to block the flow passage, and finally closing the rotating gate to complete the closing operation.

[0006] The gate body is used as a water retaining structure and a force transmitting structure to transmit the water load of the water head difference caused by storm surge to the foundation structure on the shore; and the rotating gate is arranged in the flow passage of the gate body, and when the gate body is opened and closed, the rotating gate is in an open state to reduce the water resistance of the gate body and prevent the gate body from being vertically and horizontally tilted and other adverse phenomena during the opening and closing process. The design of the "door-in-door" can solve the problems of high water accumulation and large opening and closing force during the opening and closing process of the floating miter gate, ensure the vertical stability of the gate body, and be beneficial to the overall safety of the tide gate.

[0007] The flow passage is reserved at the bottom of the gate body to solve the problems of water accumulation and gate jam caused by silt accumulation during the opening and closing process of the floating miter gate; when the floating miter gate is completely closed, the bottom flow passage is sealed by the water stop bag to prevent flow, at this time, the support rod is elongated and supported on the gate bottom plate to support the gate body.

[0008] Preferably, the gate body is a hollow metal floating box structure, the flow passage is a long hole arranged along the length direction of the gate body, and a plurality of rotating gates are arranged side by side in each flow passage, and the rotating shafts of the rotating gates are arranged vertically. The structure of the plurality of rotating gates arranged side by side can improve the construction convenience, and the vertical arrangement of the rotating shafts is beneficial to further reducing the water resistance.

[0009] Preferably, a rotating driving mechanism connected with the rotating shaft of the rotating gate is arranged on the top wall of the flow passage.

[0010] Preferably, the gate body is a streamlined structure with narrow ends and a wide middle part, a plurality of water stop bags are arranged along the width direction of the gate body, each water stop bag extends along the length direction of the gate body and is arranged in a profiled manner with the gate body, and the support rods are arranged between adjacent water stop bags.

[0011] Preferably, a collision buffer layer is arranged on the water-facing surface and the water-backing surface of the gate body.

[0012] Preferably, a positioning guide mechanism is arranged at the joint of the heads of the gate bodies, the positioning guide mechanism comprises a V-shaped guide groove arranged at the top of one side gate body and a roller arranged at the top of the other side gate body, the V-shaped guide groove is horizontally arranged and has an opening facing the other side gate body, and the roller is arranged in correspondence with the V-shaped guide groove.

[0013] When the floating miter gate is about to be closed, one of the two gates performs a small amplitude pendulum motion along the V-shaped guide groove under the action of the roller, and can be quickly locked at the corner of the V-shaped guide groove to ensure that the two gates are accurately closed.

[0014] Preferably, the balance opening and closing device comprises a balance opening and closing plate, which is arranged on a resisting pier of the concrete structure through a spherical hinge, the front end of the balance opening and closing plate is connected with the gate body, the rear end of the balance opening and closing plate is matched with a C-shaped groove on the resisting pier, and a gear and rack transmission mechanism is arranged between the C-shaped groove and the balance opening and closing plate; the top of the balance opening and closing plate is provided with a sliding block, and the bottom is provided with an elastic supporting wheel, and the sliding block and the elastic supporting wheel are both connected with the C-shaped groove.

[0015] The C-shaped groove of the balance opening and closing device is used for guiding the movement of the balance opening and closing plate, and the spherical hinge is used as the rotation center of the balance opening and closing plate and the gate body, so that the gate body can be flexibly rotated. The spherical hinge structure mainly bears the vertical load of the gate and the horizontal load in the opening and closing process.

[0016] Preferably, the gate body is arranged below the balance opening and closing plate, the tail of the gate body is provided with a supporting pad, and the sidewall of the resisting pier is provided with a pillow pad corresponding to the position of the supporting pad.

[0017] The supporting pad and the pillow pad are hinge point components for forming a three-hinged arch structure of the floating miter gate, the supporting pad is arranged on the gate shaft column and the inclined connecting column of the gate, and the pillow pad is arranged on the resisting pier, and both are continuous supporting pillow structures. When the gate is closed, the water pressure (horizontal load) acting on the gate leaf is mainly transmitted to the resisting pier through the supporting pillow.

[0018] Preferably, the front side of the resisting pier is provided with a gate niche extending outward to the river side, the gate niche is matched with the gate body, and the two gate niches are parallel to each other.

[0019] The closing method of the super-large-span bank-controlled floating miter gate tide sluice provided by the application adopts the "gate-in-gate" designed tide sluice, which makes up for the deficiency that the conventional miter gate structure is prone to vertical and horizontal tilting in the opening and closing process due to the small stroke of the opening and closing equipment when applied in a super-large-span river channel. Meanwhile, the over-flow channel reserved at the bottom of the gate body solves the problems of water stagnation and gate jam caused by sediment deposition during the opening and closing process of the floating miter gate, and further maintains the stability of the gate opening and closing. The above-mentioned gate body has the characteristics of stable structure, flexible opening and closing, safe operation, convenient maintenance, etc., and is separately arranged on both sides of the river channel during normal navigation, without affecting normal navigation; when a storm tide comes, it can be quickly closed to form a three-hinged arch structure and play a tide blocking role. The structure design, manufacturing and processing, transportation and installation, and maintenance and maintenance processes do not affect navigation and the hydrological regime of the original river channel, that is, the influence on the original river channel can be minimized.

[0020] Compared with the prior art, the application has the following advantages:

[0021] 1) wide application range, can be used for normal span (single span 50m to 100m), large span (single span 100m to 200m), and super large span (single span 400m to 500m) tidal river.

[0022] 2) the rotation center of the gate body is arranged on both sides of the river, without any pier structure and complex mechanical and electrical equipment in the water, so that the normal navigation is not affected; when storm surge comes, the gate body is closed under the action of the opening force, and a stable three-hinged arch structure is formed, the water head difference water load generated by the storm surge is transmitted to the foundation on the shore through the leaf structure, so that the influence of the storm surge on the coastal megacities is stably resisted, and the safety of the life and property of the people in the coastal areas is ensured.

[0023] 3) the "door in door" design adopted in the application, that is, the rotating gate is installed on the gate body, makes up for the deficiency that the conventional miter gate structure is prone to vertical inclination and lateral turning during opening and closing due to small stroke of the opening and closing equipment when applied in super large span river; secondly, the overflow channel is reserved at the bottom of the gate body, which can solve the problems of water stagnation during opening and closing of the floating miter gate and gate jam caused by silt accumulation, and further maintain the stability of the gate opening and closing; thirdly, the alignment guide mechanism is arranged to ensure accurate closing of the two gates.

[0024] 4) the tide gate described in the application is implemented in the door niche on both banks during daily maintenance, if overhaul is needed, the gate body can be towed to the shipyard for maintenance or directly subjected to water maintenance, so that the tide gate does not have great influence on navigation during operation and maintenance.

[0025] 5) the tide gate described in the application does not set up a pier in the water, does not increase the river bed elevation, and is constructed by using the caisson method during construction, the prefabricated box is directly sunk into the water, and construction can be carried out without interrupting the navigation, so that the tide gate does not have great influence on navigation during construction.

[0026] 6) for the design problem of reasonable gate type and structure of the super large span tide gate, the structure safety, advanced technology, flexible opening and closing, and convenient maintenance principle is followed, the spatial system method is directly used for structural design, and the design quality and design efficiency of the super large span tide gate are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the tide gate.

[0028] Figure 2 is Figure 1 a planar structural schematic view of the gate body opening and closing.

[0029] Figure 3 is Figure 1A schematic diagram of the structure of the gate body on the left side.

[0030] Figure 4 yes Figure 3 A schematic diagram of the bottom structure.

[0031] Figure 5 yes Figure 3 A schematic diagram of the structure of a rotating gate.

[0032] Figure 6 yes Figure 1 A schematic diagram of the alignment and guidance mechanism.

[0033] Figure 7 yes Figure 1 A schematic diagram of the structure of the left-side balance opening and closing plate.

[0034] Figure 8 yes Figure 7 Enlarged view of part A in the image. Detailed Implementation

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of the present invention, and detailed implementation methods and specific working processes are given. However, the scope of protection of the present invention is not limited to the following embodiments.

[0036] like Figures 1-8 As shown, the closing method of the ultra-large span shore-controlled floating miter gate tide barrier described in this invention is applicable to the following tide barrier. It includes a pair of gate bodies 1. The head of the gate body 1 is located on the outer river side of the river channel, and the tail is connected to a balancing opening and closing device 2 located on both banks of the inner river channel. A niche 3 extending outwards from the front of the resistance pier 21 of the balancing opening and closing device 2 is provided, and the niche 3 is adapted to the gate body 1, with the two niches 3 being parallel to each other. When navigation is required, the gate body 1 is located within the niche 3; when a storm surge occurs, the gate body 1 rotates towards the center of the river channel under the action of the balancing opening and closing device 2 until the heads meet, forming a closed state. The closing point of the two gate bodies 1 is located on the outer river side of the line connecting the ball hinges 22 of the two balancing opening and closing devices 2, forming a stable three-hinged arch structure, thus providing tide protection.

[0037] Due to the large span of the tide gate, the water stagnation is too high and the opening and closing force is too large during the opening and closing process of the gate body 1, and the above problems are more serious when there is sediment accumulation on the riverbed. Therefore, the gate body 1 is provided with a hollow metal float tank structure, and is a streamlined structure with narrow ends and a wide middle part. The gate body 1 is provided with flow holes 11 in the middle part, and rotating gates 12 are installed in the flow holes 11. In this embodiment, the flow holes 11 are long holes arranged along the length direction of the gate body 1, and a plurality of rotating gates 12 are arranged side by side in each flow hole 11, and the rotating shafts 13 of the rotating gates 12 are arranged vertically. The top wall of the flow hole 11 is provided with a rotating drive mechanism connected with the rotating shaft 13. The side-by-side arrangement of the plurality of rotating gates 12 can improve the construction convenience, and the vertical arrangement of the rotating shafts 13 is beneficial to reducing the water resistance of the rotating gates 12 during rotation. In actual application, a plurality of flow holes 11 can be arranged on the gate body 1, and one rotating gate 12 is arranged in each flow hole 11. The rotating drive mechanism includes a telescopic oil cylinder 14 arranged on the top wall of the flow hole 11, which is located on one side of the rotating shaft 13 and is differentially arranged. The connecting rod 15 is fixedly installed on the rotating shaft 13, and the end of the connecting rod 15 is hingedly connected with the piston rod of the telescopic oil cylinder 14. When the telescopic oil cylinder 14 operates, it can push the rotating gate 12 to rotate. The rotating gate 12 has a closed state of closing the flow hole 11 and an open state of allowing water flow. When the gate body 1 is opened and closed, the rotating gate 12 is in the open state, which reduces the water resistance of the gate body 1 and prevents the gate body 1 from tilting vertically and horizontally during the opening and closing process. When the gate body 1 is in the closed state, the rotating gate 12 is also in the closed state to prevent water flow. The design of the "door-in-door" can solve the problems of high water stagnation and large opening and closing force during the opening and closing process of the floating trapezoidal gate, ensure the vertical stability of the gate body 1, and be beneficial to the overall safety of the tide gate.

[0038] Further, the gate body 1 is arranged spaced apart from the gate bottom plate, and an inflatable water stop bag 4 and a telescopic support rod 5 are installed at the bottom of the gate body 1. The water stop bag 4 is arranged spaced apart in multiple rows along the width direction of the streamlined gate body 1, each water stop bag 4 extends along the length direction of the gate body 1 and is arranged in the shape of the contour of the gate body 1, and the support rod 5 is arranged between adjacent water stop bags 4. When the gate body 1 is opened and closed, there is no medium in the water stop bag 4, and the support rod 5 is in the contracted state, so that the bottom of the gate body 1 forms a smooth flow passage, thereby solving the problems of water stagnation and gate jamming caused by sediment accumulation during the opening and closing process of the floating trapezoidal gate. After the gate body 1 is completely closed, the water stop bag 4 is inflated to expand, the bottom flow passage is sealed to prevent flow, and at the same time, the support rod 5 is elongated and supported on the gate bottom plate to support the gate body 1.

[0039] Further, the anti-collision buffer layer is arranged on the water-facing surface and the backwater surface of the gate body 1.

[0040] In order to accurately close the floating body X-shaped gate, the alignment guide mechanism 6 is arranged at the joint of the heads of the two gate bodies 1. The alignment guide mechanism 6 comprises the V-shaped guide groove 61 arranged on the top of one side gate body 1 and the roller 62 arranged on the top of the other side gate body 1. The V-shaped guide groove 61 is horizontally arranged and opens towards the other side gate body 1. The roller 62 is correspondingly arranged in the V-shaped guide groove 61. When the floating body X-shaped gate is about to be closed, one of the gate bodies 1 is subjected to the small amplitude deceleration pendulum motion along the V-shaped guide groove 61 under the action of the roller 62, and is quickly locked at the corner of the V-shaped guide groove 61, thereby ensuring the accurate closing of the two gate bodies.

[0041] The balance opening and closing device comprises the balance opening and closing plate 23 arranged on the resisting pier 21 of the concrete structure through the ball hinge 22. The front end of the balance opening and closing plate 23 is connected with the gate body 1, and the rear end is the arc-shaped structure corresponding to the C-shaped groove 24 on the resisting pier 21. The gear and rack transmission mechanism is arranged between the C-shaped groove 24 and the balance opening and closing plate 23. Specifically, the ball hinge 22 bears the vertical load of the gate body 1 and the horizontal load in the opening and closing process, and serves as the rotation center of the balance opening and closing plate 23 and the gate body 1, thereby ensuring the flexible rotation of the gate body 1. The C-shaped groove 24 is used for guiding the motion of the balance opening and closing plate 23. The gear and rack transmission mechanism is used for driving the rotation of the balance opening and closing plate 23, and comprises the inner ring gear 25 in the form of concave tooth surface installed on the C-shaped groove 24. The drum gear 26 driven by the motor is installed on the top of the balance opening and closing plate 23. The drum gear 26 is arranged in the follow-up mode, thereby ensuring the effective engagement of the gear with the rack at all times, and providing the opening and closing power for the floating body X-shaped gate and maintaining the posture of the floating body X-shaped gate in the opening and closing and tide resisting processes. Further, the sliding block 27 is installed on the top of the balance opening and closing plate 23, and the elastic supporting wheel 28 is installed on the bottom of the balance opening and closing plate 23. The sliding block 27 and the elastic supporting wheel 28 are arranged in the C-shaped groove 24 and are respectively connected with the top surface and the bottom surface of the C-shaped groove 24.

[0042] Further, the gate body 1 is fixed below the balance opening and closing plate 23. The support pad 7 is installed on the gate shaft column and the oblique joint column at the tail of the gate body 1. The pillow pad corresponding to the position of the support pad 7 is arranged on the side wall of the resisting pier 21. The support pad 7 and the pillow pad are arranged in the continuous support pillow pad structure. When the two gate bodies 1 are in the closed state, the coincident support pillow pad transmits the water pressure (horizontal load) acting on the gate body 1 to the resisting pier 21, thereby serving as the hinge point component of the three-hinged arch structure of the floating body X-shaped gate.

[0043] When the tide gate is designed and constructed, the following steps are taken:

[0044] Firstly, the reasonable engineering position of the tide sluice is determined according to the engineering geological conditions of the estuary of the coastal city, the underwater geological and topographic conditions, the river hydrology and river regime conditions, the navigation demand, the building conditions on both banks and the like;

[0045] Secondly, the reasonable width of the tide sluice is determined according to the navigation demand, the underwater geological and topographic conditions, the river hydrology and river regime conditions;

[0046] Thirdly, the overall structure of the tide sluice is designed by using the space system method according to the reasonable engineering position and the reasonable width of the tide sluice, and the requirements of structural safety, flexible opening and closing, stable operation and convenient maintenance are followed;

[0047] Finally, the tide sluice is constructed according to the design scheme, and the problems found in the actual operation are timely adjusted and solved to ensure the normal operation of the tide sluice.

[0048] The tide sluice has the characteristics of stable structure, flexible opening and closing, safe operation and convenient maintenance, and meanwhile, the hydrology and river regime of the original river channel are not affected in the processes of structural design, manufacturing and processing, transportation and installation and maintenance, that is, the influence on the original river channel can be minimized.

[0049] The closing method of the super-large-span bank-controlled floating body miter gate tide sluice comprises the following steps:

[0050] Firstly, the rotating gate 12 is opened, the medium in the water stop bag 4 is emptied, and the supporting rod 5 is in the contracted state to form a flow passage at the bottom of the gate body 1, then the gate body 1 is rotated to the center of the river channel through the balance opening and closing device 2, and the two gate bodies 1 are quickly closed and connected to form a stable three-hinged arch structure through the head alignment guide mechanism 6, then the supporting rod 5 is extended to support on the gate bottom plate, the water stop bag 4 is inflated to block the flow passage, and finally the rotating gate 12 is closed to complete the closing operation.

[0051] It should be noted that in the description of the present application, the terms indicating the orientation or position relationship such as "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as limiting the present application.

Claims

1. A method for closing a super-span shore-controlled floating body miter gate tide lock, characterized in that: the tide lock comprises a gate body, a flow passage is formed in the gate body, a rotating gate is arranged in the flow passage, the rotating gate has a closed state for closing the flow passage and an open state for allowing water flow, the gate body is spaced apart from a gate floor, a bottom of the gate body is provided with inflatable water-stopping bags and telescopic support rods, a head of the gate body is located on an outside river side of a river channel, a tail of the gate body is connected with a balance opening and closing device, and the balance opening and closing device is arranged on both banks of an inside river side of the river channel. The gate body is a hollow metal floating box structure, the flow passage is a long hole arranged along a length direction of the gate body, a plurality of rotating gates are arranged side by side in each flow passage, and rotating shafts of the rotating gates are arranged in a vertical direction. The gate body is a streamlined structure with narrow ends and a wide middle part, a plurality of water-stopping bags are arranged along a width direction of the gate body, each water-stopping bag extends along a length direction of the gate body and is arranged in a profile of the gate body, and the support rods are arranged between adjacent water-stopping bags. The balance opening and closing device comprises a balance opening and closing plate, the balance opening and closing plate is arranged on a resistance pier of a concrete structure through a spherical hinge, a front end of the balance opening and closing plate is connected with the gate body, a rear end of the balance opening and closing plate is matched with a C-shaped groove on the resistance pier, a gear and rack transmission mechanism is arranged between the C-shaped groove and the balance opening and closing plate, a top of the balance opening and closing plate is provided with a sliding block, and a bottom of the balance opening and closing plate is provided with an elastic supporting wheel, and the sliding block and the elastic supporting wheel are connected with the C-shaped groove. The closing method comprises the following steps: first, opening the rotating gate, emptying the medium in the water-stopping bag, and making the support rod in a retracted state to form a flow passage at the bottom of the gate body, then rotating the gate body to the center of the river channel through the balance opening and closing device, until the heads of the two gate bodies are closed and connected to form a stable three-hinged arch structure, then extending the support rod to support on the gate floor, inflating the water-stopping bag to block the flow passage, and finally closing the rotating gate to complete the closing operation. A rotating driving mechanism connected with the rotating shaft of the rotating gate is arranged on a top wall of the flow passage.

2. The method according to claim 1, wherein the method is characterized in that: Anti-collision buffer layers are arranged on water-facing surfaces and backwater surfaces of the gate body.

3. The method of claim 1, wherein the method further comprises: closing the gates of the super-long-span shore-controlled floating body V-shaped gate tidal lock. A position guiding mechanism comprises a V-shaped guide groove arranged on a top of one gate body and a roller arranged on a top of the other gate body, the V-shaped guide groove is horizontally arranged and has an opening facing the other gate body, and the roller is correspondingly matched with the V-shaped guide groove.

4. The method of claim 1, wherein the method further comprises: The gate body is arranged below the balance opening and closing plate, a tail of the gate body is provided with a support pad, and a side wall of the resistance pier is provided with a pillow pad corresponding to the position of the support pad.

5. The method of claim 1, wherein the method further comprises: closing the gates of the super-long-span shore-controlled floating body V-shaped gate tidal lock. A door niche extending to the outside river side of the river channel is arranged on a front side of the resistance pier, the door niche is matched with the gate body, and the two door niches are parallel to each other.

6. The method of claim 1, wherein the method further comprises: ​

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