Folding fan-shaped tide gate

Abstract

The invention relates to the technical field of water conservancy projects, and discloses a folding fan-shaped tide gate. According to the folding type fan-shaped tide gate provided by the invention, the fan-shaped gate is provided with the fixed gate leaf section and the first movable gate leaf section, and the movable gate leaf section is folded to the fixed gate leaf section when being opened, so that the overall storage width of the gate is obviously smaller than the water retaining width when the gate is completely unfolded; compared with a traditional fan-shaped gate which needs to store the whole gate leaf in gate reservoirs on both sides in an opening state, and the gate reservoirs need to provide enough plane size and depth for the gate leaf, so that the occupied area of ancillary facilities is huge, the folding fan-shaped tide gate of the structure can reduce the plane size and depth requirements of the gate reservoirs, and the folding fan-shaped tide gate is convenient to use. The occupied area of the gate chamber and ancillary facilities is reduced, and the project demolition range and the civil engineering cost are effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic engineering, in particular to a folding fan-shaped tide gate. BACKGROUND

[0002] The tide gate can effectively shorten the length of the flood control line, realize the function of water retaining in both directions, close the gate to resist the tide before the storm tide forecast occurs, open the gate to discharge flood and drain water in daily life, and balance the ecological regulation and navigation demand. The tide gate has the advantages of shortening the length of the flood control line, concentrating the regulation of tide invasion, and ensuring the safety of the city area inside the gate in flood control.

[0003] At present, most of the built and under-construction tide gates adopt fan-shaped gate structure. The gate rotates around the horizontal axis or inclined axis during opening and closing, and the water flow of the estuary and the tide can be realized by controlling the lying or standing of the gate leaf. The fan-shaped gate structure is solid and can withstand large water pressure, is suitable for wide estuary, has fast opening and closing speed, and can quickly respond when the tide changes rapidly, so it is applied in some large tide gate projects.

[0004] However, the fan-shaped gate needs to store the gate leaf in the gate house specially built on both sides when the gate is opened, and the gate house must have a large plan size and depth to accommodate the overall structure of the fan leaf. At the same time, in order to maintain the stability and safety of the gate body, the corresponding supporting structure, hydraulic opening and closing system and maintenance channel also need to be arranged, which further increases the land occupation requirement of the auxiliary facilities. This leads to a large range of engineering demolition, and restricts the promotion and application of the tide gate. SUMMARY

[0005] Therefore, the present application provides a folding fan-shaped tide gate to solve the problem of large land occupation of the gate house.

[0006] The folding fan-shaped tide gate provided by the present application comprises a gate house unit and a fan-shaped gate, the fan-shaped gate is hinged with a supporting hinge base, and the fan-shaped gate is connected with an opening and closing machine unit for driving the fan-shaped gate to rotate around the supporting hinge base; the gate house unit comprises two gate houses which are arranged on both sides of the river respectively; two fan-shaped gates are arranged in the two gate houses respectively, any fan-shaped gate comprises a fixed gate leaf segment and a first movable gate leaf segment, one end of the first movable gate leaf segment is hinged with the fixed gate leaf segment through a rotating shaft, and the other end of the first movable gate leaf segment is folded or unfolded under the action of the driving unit; when the fan-shaped gate is opened and stored in the gate house, the other end of the first movable gate leaf segment is folded towards the fixed gate leaf segment under the driving of the driving unit, so that the overall storage width of the fan-shaped gate is smaller than the overall unfolding width of the fan-shaped gate.

[0007] Beneficial effects: By setting the sector gate as a fixed leaf segment and a first movable leaf segment, and folding the movable leaf segment to the fixed leaf segment when opened, the overall storage width of the gate is significantly smaller than the water blocking width when fully expanded. Compared with the traditional sector gate which needs to store the entire leaf in the gate house on both banks when opened, the gate house needs to provide sufficient plan size and depth for the leaf, resulting in a large land requirement for the auxiliary facilities. The folding sector tide gate can reduce the plan size and depth requirement of the gate house, reduce the land area of the gate house and auxiliary facilities, and effectively reduce the engineering demolition range and civil engineering cost. At the same time, through the formation of the folding design, a compact layout is formed, and a large supporting structure, a hydraulic opening and closing system and a maintenance access are no longer needed, reducing the amount of civil engineering and equipment investment.

[0008] In an optional embodiment, the gate house comprises a plurality of sequentially connected gate house bank walls, and the plurality of gate house bank walls enclose a containing chamber for containing the fixed leaf segment and the first movable leaf segment.

[0009] Beneficial effects: By using a plurality of sequentially connected gate house bank walls to form the gate house, modular and segmented construction can be achieved during construction. The size, shape and foundation depth of each section of the bank wall can be flexibly designed according to the specific geological conditions, terrain undulations and space limitations on both banks of the river, achieving a high degree of fit with the surrounding environment, reducing construction difficulty, reducing unnecessary earth excavation and backfilling amount, and enhancing the stability of the structure and the economy of the project. At the same time, by forming a containing chamber for containing the fixed leaf segment and the first movable leaf segment, the folded sector gate can be completely placed in the containing chamber, avoiding the occupation of additional space by the leaf.

[0010] In an optional embodiment, the gate house bank wall on the water side is embedded in the foundation; the gate house unit further comprises a maintenance gate house, and the maintenance gate house is internally arranged with a movable gate; the movable gate is movably installed in the maintenance gate house, and is moved upwards above the gate house bank wall on the water side under the action of a driving unit until the containing chamber is blocked.

[0011] Beneficial effects: By arranging a movable gate in the maintenance gate house, when maintenance is needed, the movable gate only needs to be driven to move outward until it blocks the top of the gate house bank wall on the water side, thereby quickly and reliably blocking the water side of the containing chamber, completely isolating the containing chamber of the gate house from the external river water, so that the containing chamber can form a safe dry land state in a very short time during maintenance, avoiding the cumbersome, high-cost and high-risk operations of building a temporary cofferdam or using large-scale water pumping equipment in traditional maintenance, shortening the maintenance preparation time, reducing the labor intensity, and fundamentally ensuring the safety of the maintenance personnel and equipment.

[0012] In an alternative embodiment, any of the sector gate comprises two first movable leaf segments symmetrically arranged on both sides of the fixed leaf segment.

[0013] Beneficial effects: By providing two first movable leaf segments, when stored, the two movable leaf segments can be symmetrically folded towards the middle fixed leaf segment, realizing bidirectional folding, further reducing the floor area occupied by the gatehouse. At the same time, the center of the symmetrically folded leaf is closer to the center line of the river channel, so that the gatehouse does not need to provide additional depth space for the single-sided leaf, thereby shortening the overall length of the gatehouse and reducing the amount of civil engineering.

[0014] In an alternative embodiment, any of the sector gate further comprises a plurality of second movable leaf segments, which are connected by a hinge shaft between the first movable leaf segments and / or between adjacent second movable leaf segments.

[0015] Beneficial effects: By increasing the number of second movable leaf segments and connecting them by a hinge shaft, the plurality of second movable leaf segments can form a multi-layer stacked structure in the closed state, further reducing the floor area occupied by the gate. At the same time, the gate is divided into a plurality of shorter leaf segments, which are connected by hinges, which can improve the bending stiffness of each leaf segment itself and avoid deformation problems caused by excessive length. In addition, driving a multi-stage hinge chain structure requires much less driving force and power than directly driving a rigid giant leaf of the same length, reducing the design and manufacturing difficulty and cost of the driving unit.

[0016] In an alternative embodiment, the folding sector tide gate further comprises a hinge row protection bottom, which is laid on the bottom of the river channel.

[0017] Beneficial effects: By laying a hinge row protection bottom on the bottom of the river channel, a continuous and strong protective layer is formed, which can directly resist the scouring force of the water flow, prevent soil loss of the riverbed, protect the foundation of the sector gate support hinge seat and the foundation of the gatehouse bank wall from being washed out and damaged, ensure the permanent stability of the entire gate system support structure, and eliminate the major safety hazards of gate overturning or operation failure caused by foundation instability. At the same time, since it is composed of unit blocks connected by hinges, this structure has good adaptability to foundation deformation. Even if the bottom of the river channel is unevenly settled or slightly deformed due to geological reasons, the hinge row protection bottom can deform without breaking or failing, and always maintains full coverage and continuous protection of the riverbed, improving the reliability and durability of the protection system and reducing the risk of frequent maintenance due to foundation deformation.

[0018] In an alternative embodiment, the folding sector tide gate further comprises a gate chamber arranged close to the support hinge seat.

[0019] Beneficial effects: The fan-shaped gate bears huge water pressure when blocking water, and the huge moment generated by the fan-shaped gate is ultimately transmitted to the foundation through the supporting hinge. By arranging the gate chamber close to the supporting hinge, the concentrated load transmitted by the supporting hinge can be effectively dispersed to a large area of the foundation, avoiding the direct action of huge load on the possibly relatively thin door library bank wall or other dispersed foundation, preventing the gate from tilting, blocking or even being damaged due to uneven settlement or deformation of the foundation, and providing reliable structural protection for the stable and safe operation of the gate. At the same time, the internal or top space of the gate chamber can be reasonably and centrally arranged with the power unit, oil pipeline, electric control system and maintenance access, lifting holes and other of the hydraulic gate hoisting system, forming an integrated layout, collecting all key equipment from the open environment into the solid protective structure, shortening the complex external pipeline connection, making the overall layout more compact and beautiful, facilitating daily inspection, lubrication, debugging and maintenance work, and improving the maintainability of the system.

[0020] In an optional embodiment, the gate chamber is a caisson structure.

[0021] Beneficial effects: The caisson structure adopts the process of first manufacturing and then sinking, and the well wall is a soil retaining structure. During construction, only the soil inside the caisson needs to be excavated, and the well wall is sunk by overcoming the peripheral friction force by its own weight. Compared with the traditional method of excavating the entire foundation pit with slope, the amount of earthwork excavation, transportation and disposal can be reduced. At the same time, the need for large-scale and high-cost temporary slope support system is avoided, the construction temporary occupation and the damage to the natural environment on both sides of the river are reduced, and the modern engineering concept of green and low carbon is met.

[0022] In an optional embodiment, the folding fan-shaped tide gate further comprises upstream wing walls and downstream wing walls. The upstream wing walls are arranged in pairs and respectively installed on the two sides of the upstream side of the door library unit to form an inlet; the downstream wing walls are arranged in pairs and respectively installed on the two sides of the downstream side of the door library unit to form an outlet.

[0023] Beneficial effects: The symmetrical arrangement of the upstream wing walls can balance the water pressure on both sides and avoid the vibration or deflection of the door library unit caused by asymmetric water flow; the diffusion function of the downstream wing walls can reduce the water impact force and reduce the dynamic load fluctuation when the gate is opened and closed.

[0024] In an optional embodiment, the folding fan-shaped tide gate further comprises a fixed unit, and the fixed unit comprises a prefabricated concrete bottom plate and a homogeneous concrete bottom protection. The prefabricated concrete bottom plate is installed on the bottom of the river; the homogeneous concrete bottom protection is arranged in pairs and respectively installed on the upstream side and the downstream side of the prefabricated concrete bottom plate along the river direction.

[0025] Beneficial effects: the traditional single-side bottom protection design is prone to stress concentration due to uneven water flow direction, the homogeneous concrete bottom protection is arranged on the upstream and downstream sides of the prefabricated concrete bottom plate along the river flow direction, the water flow impact force is uniformly distributed to the two sides of the bottom protection through geometric symmetry, and structural deviation or local damage caused by single-side stress is avoided. Meanwhile, the symmetrical layout of the scheme can convert dynamic load into axial pressure, improve overall rigidity, and reduce deformation risk. In addition, the prefabricated concrete bottom plate serves as a foundation bearing layer, and a fixed unit is formed together with the two bottom protections, so that the installation requirement that the gate is filled with water to float above the bottom plate, and then drained to sink and fall into position on the top of the bottom plate is met. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application, the drawings needed to be used in the specific embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0027] Figure 1 A top view schematic diagram of the sector-shaped gate of the folding sector-shaped tide barrier in a folded state is provided for the embodiment of the present application.

[0028] Figure 2 A top view schematic diagram of the sector-shaped gate of the folding sector-shaped tide barrier in an unfolded state is provided for the embodiment of the present application.

[0029] Figure 3 A side view schematic diagram of the folding sector-shaped tide barrier is provided for the embodiment of the present application.

[0030] Figure 4 A side view schematic diagram of the gate house bank wall in the folding sector-shaped tide barrier is provided for the embodiment of the present application.

[0031] Figure 5 A side view schematic diagram of the gate chamber in the folding sector-shaped tide barrier is provided for the embodiment of the present application.

[0032] Figure 6 A side view schematic diagram of the prefabricated concrete bottom plate in the folding sector-shaped tide barrier is provided for the embodiment of the present application.

[0033] Figure 7 A side view schematic diagram of the homogeneous concrete bottom protection in the folding sector-shaped tide barrier is provided for the embodiment of the present application.

[0034] Explanation of reference signs:

[0035] 1, gate house unit; 11, gate house; 111, gate house bank wall; 112, containing cavity; 12, maintenance gate house;

[0036] 2. Sector-shaped gate; 21. Fixed gate leaf section; 22. First movable gate leaf section;

[0037] 3. Support hinge;

[0038] 4. Drive unit; 41. Support rod assembly;

[0039] 5. Movable gate;

[0040] 6. Hinged bottom guard;

[0041] 7. Lock chamber; 71. Caisson;

[0042] 81. Upstream wing wall; 82. Downstream wing wall;

[0043] 91. Precast concrete base slab; 92. Homogeneous concrete base protection;

[0044] 10. Pile foundation. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0047] According to an embodiment of the present invention, a foldable fan-shaped moisture barrier is provided, such as Figure 1 As shown, it includes a gate unit 1 and a sector gate 2.

[0048] The sector gate 2 is hinged to the support hinge seat 3, and the sector gate 2 is connected to an opening and closing unit that drives it to rotate around the support hinge seat 3; the gate storage unit 1 includes a gate storage 11, and there are two gate storage 11s, which are respectively arranged on both banks of the river; the two sector gates 2 are respectively used to be installed in the two gate storage 11s. Each sector gate 2 includes a fixed gate leaf section 21 and a first movable gate leaf section 22. One end of the first movable gate leaf section 22 is hinged to the fixed gate leaf section 21 through a rotating shaft, and the other end is folded or unfolded under the action of the driving unit 4; wherein, when the sector gate 2 is opened and stored in the gate storage, the other end of the first movable gate leaf section 22 is folded toward the fixed gate leaf section 21 under the drive of the driving unit 4, so that the overall storage width of the sector gate 2 is smaller than its overall unfolded width.

[0049] In this way, by arranging the sector gate 2 as a fixed gate leaf segment 21 and a first movable gate leaf segment 22, and folding the movable gate leaf segment to the fixed gate leaf segment 21 when opened, the overall storage width of the gate is significantly smaller than the water blocking width when fully expanded. Compared with the conventional sector gate 2, which needs to store the entire gate leaf in the gate house on both banks when opened, the gate house needs to provide sufficient plan size and depth for the gate leaf, resulting in a large land requirement for the ancillary facilities (such as support structure, hydraulic system, maintenance access, etc.). The folding sector tide gate can reduce the plan size and depth requirement of the gate house, reduce the land area of the gate house and ancillary facilities, and effectively reduce the engineering demolition range and civil engineering cost.

[0050] At the same time, by forming a folding design, a compact layout is formed, and there is no need to configure a large supporting structure, a hydraulic opening and closing system, and a maintenance access, thereby reducing the amount of civil engineering and equipment investment.

[0051] It can be explained that the driving unit 4 includes a support rod set 41, and the support rod set 41 includes a plurality of hinged support rods.

[0052] In one embodiment, the gate house 11 includes a plurality of gate house bank walls 111 connected in sequence, and the plurality of gate house bank walls 111 enclose a containing chamber 112 for containing the fixed gate leaf segment 21 and the first movable gate leaf segment 22.

[0053] In this way, by using a plurality of gate house bank walls 111 connected in sequence to form the gate house 11, modular and segmented construction can be achieved during construction, and the size, shape, and foundation depth of each bank wall can be flexibly designed according to the specific geological conditions, terrain undulations, and space limitations on both banks of the river, thereby achieving a high degree of fit with the surrounding environment, reducing construction difficulty, reducing unnecessary earth excavation and backfilling amount, and enhancing the stability of the structure and the economy of the project.

[0054] At the same time, by forming the containing chamber 112 for containing the fixed gate leaf segment 21 and the first movable gate leaf segment 22, the folded sector gate 2 can be completely placed in the containing chamber 112, avoiding the occupation of additional space by the gate leaf.

[0055] It can be explained that the water side gate house bank wall 111 adopts an underground continuous wall structure.

[0056] Specifically, the water side of the water side gate house bank wall 111 and the soil side are each arranged with an underground continuous wall, and the two underground continuous walls are connected by a partition wall.

[0057] Further, the remaining gate house bank walls 111 are identical in structure except for different top elevations.

[0058] It can be explained that the top elevation of the gatehouse bank wall 111 on the gate operation route is low, which avoids affecting the gate closing, and is mainly for soil retaining operation.

[0059] In this way, the gatehouse bank wall 111 serves as a flood control and water retaining structure during the operation period of the project, and also serves as a foundation pit supporting structure during the construction period of the project, which can reduce the construction excavation area, avoid large-scale land acquisition and demolition, and reduce the impact on the surrounding environment.

[0060] In one embodiment, the water-side gatehouse bank wall 111 is embedded in the foundation; the gatehouse unit 1 further comprises a maintenance gatehouse 12, and the maintenance gatehouse 12 is internally arranged with a movable gate 5, which is movably installed in the interior of the maintenance gatehouse 12. The movable gate 5 moves upwards towards the water-side gatehouse bank wall 111 under the action of the driving unit 4 until it blocks the accommodation chamber 112.

[0061] In this way, by arranging the movable gate 5 in the interior of the maintenance gatehouse 12, when maintenance is needed, the movable gate 5 only needs to be driven to move outward until it blocks the water-side gatehouse bank wall 111 above, which can quickly and reliably block the water-side of the accommodation chamber 112, completely isolate the accommodation chamber 112 from the external river water, and form a safe dry land state in a very short time during maintenance, avoiding the cumbersome, high-cost and high-risk operation of building a temporary cofferdam or using large-scale water pumping equipment in traditional maintenance, shortening the maintenance preparation time, reducing the labor intensity, and fundamentally ensuring the safety of maintenance personnel and equipment.

[0062] Preferably, the movable gate 5 is selected as a horizontal pull gate. When the sector gate 2 needs maintenance, the horizontal pull gate is pushed out for water retaining, ensuring that the gatehouse is in a dry state, which is convenient for the maintenance and repair of the sector gate 2.

[0063] In one embodiment, any sector gate 2 comprises two first movable leaf segments 22, which are symmetrically installed on both sides of the fixed leaf segment 21.

[0064] In this way, by arranging two first movable leaf segments 22, the two movable leaf segments can be symmetrically folded towards the fixed leaf segment 21 in the middle when being stored, realizing bidirectional folding and further reducing the floor area of the gatehouse.

[0065] At the same time, the center of the symmetrically folded leaf is closer to the center line of the river, so that the gatehouse does not need to provide additional depth space for the single-sided leaf, thereby shortening the overall length of the gatehouse and reducing the amount of civil engineering.

[0066] In one embodiment, any sector gate 2 further comprises a plurality of second movable leaf segments, which are connected by a hinge shaft between the first movable leaf segment 22 and the second movable leaf segment, and / or between adjacent second movable leaf segments.

[0067] In this way, by increasing the number of second movable door leaf segments and connecting them through the shaft hinge, the plurality of second movable door leaf segments can form a multi-layer stacked structure in the closed state, further reducing the floor area occupied by the gate.

[0068] At the same time, by dividing the gate into multiple shorter door leaf segments and connecting them through the hinge, the bending stiffness of each door leaf itself can be improved, avoiding deformation problems caused by excessive length.

[0069] In addition, driving a multi-stage hinge chain structure requires much less driving force and power than directly driving a rigid giant door leaf of the same length, reducing the design and manufacturing difficulty and cost of the driving unit 4.

[0070] In one embodiment, the folding sector tide gate further comprises a hinge row protection bottom 6 laid on the river bottom.

[0071] In this way, by laying the hinge row protection bottom 6 on the river bottom, a continuous and strong protective layer is formed, which can directly resist the scouring force of the water flow, prevent the loss of riverbed soil, protect the foundation of the sector gate 2 support hinge base 3 and the foundation of the gate house bank wall 111 from being washed out and damaged, ensure the permanent stability of the entire gate system support structure, and eliminate the major safety hazards of gate overturning or operation failure caused by foundation instability.

[0072] At the same time, since it is composed of unit blocks connected by hinges, this structure has good adaptability to foundation deformation. Even if the river bottom is unevenly settled or slightly deformed due to geological reasons, the hinge row protection bottom 6 can deform without breaking or failing, and always maintain full coverage and continuous protection of the riverbed, improving the reliability and durability of the protection system and reducing the risk of frequent maintenance due to foundation deformation.

[0073] In one embodiment, the folding sector tide gate further comprises a gate chamber 7 arranged close to the support hinge base 3.

[0074] In this way, the sector gate 2 bears a huge water pressure when it is used to block water, and the huge moment generated by it is ultimately transmitted to the foundation through the support hinge base 3. By arranging the gate chamber 7 close to the support hinge base 3, the concentrated load transmitted by the support hinge base 3 can be effectively dispersed to a large area of foundation, avoiding the direct action of huge load on the possibly relatively thin gate house bank wall 111 or other dispersed foundation, preventing the gate from tilting, jamming or even damaging due to uneven settlement or deformation of the foundation, and providing reliable structural protection for the stable and safe operation of the gate.

[0075] Meanwhile, the power unit, oil pipeline, electric control system and maintenance passage, lifting hole and the like of the hydraulic hoist system can be reasonably and centrally arranged inside or on the top of the gate chamber 7, forming an integrated layout, collecting all the key equipment in the solid protective structure from the open environment, shortening the complex external pipeline connection, making the overall layout more compact and beautiful, facilitating the daily inspection, lubrication, debugging and maintenance work, and improving the maintainability of the system.

[0076] It can be explained that the inside of the gate chamber 7 provides space for pipeline laying and mechanical operation.

[0077] In an embodiment, the gate chamber 7 is a caisson structure. That is, it is composed of a plurality of caissons 71.

[0078] In this way, the caisson structure adopts the process of first manufacturing and then sinking, and the well wall is a soil retaining structure. During construction, only the soil inside the caisson 71 needs to be excavated, and the well wall is sunk by using its own weight to overcome the peripheral friction. Compared with the traditional method of slope excavation of the entire foundation pit, the amount of earthwork excavation, transportation and disposal can be reduced.

[0079] At the same time, it avoids the need to make a large-scale and high-cost temporary slope support system, reduces the construction of temporary land occupation and the damage to the natural environment on both sides of the river, and conforms to the modern engineering concept of green and low carbon.

[0080] In an embodiment, the folding sector tide gate further comprises upstream wing walls 81 and downstream wing walls 82. The upstream wing walls 81 are arranged in pairs and respectively installed on both sides of the upstream side of the gate house unit 1, for enclosing the water inlet; the downstream wing walls 82 are arranged in pairs and respectively installed on both sides of the downstream side of the gate house unit 1, for enclosing the water outlet.

[0081] In this way, the symmetrical arrangement of the upstream wing walls 81 can balance the water pressure on both sides and avoid the vibration or deflection of the gate house unit 1 caused by asymmetric water flow; the diffusion function of the downstream wing walls 82 can reduce the water impact force and reduce the dynamic load fluctuation when the gate is opened and closed.

[0082] It can be explained that the upstream wing walls 81 are designed as a gradually changing curve, which can effectively guide the water flow to enter the gate chamber 7 smoothly and avoid the problems of vortex and backflow caused by improper diffusion angle of the traditional straight wing wall. Through the symmetrical layout and curve design of the paired wing walls, the contraction speed of the water flow can be controlled within a reasonable range, reducing the sudden increase of local flow rate and energy loss.

[0083] Similarly, the downstream wing walls 82 are designed as a curve or twisted surface, which can make the outflow water flow uniformly diffuse and avoid the phenomenon of single-width flow concentration and main flow separation from the wing wall.

[0084] Similarly, the wing wall end is provided with a apron, and the wing wall end is flush with the apron end, which can further inhibit the flow of water, reduce the risk of erosion of the riverbed and bank slope.

[0085] Further, due to the large retaining height, in order to reduce the construction excavation area, the upstream wing wall 81 and the downstream wing wall 82 adopt an underground continuous wall structure consistent with the water side door bank wall 111.

[0086] In one embodiment, the folding sector tide gate further comprises a fixed unit, which comprises a prefabricated concrete bottom plate 91 and a homogeneous concrete bottom 92. The prefabricated concrete bottom plate 91 is installed at the bottom of the river; the homogeneous concrete bottom 92 is arranged in pairs and installed on the upstream side and downstream side of the prefabricated concrete bottom plate 91 along the river flow direction.

[0087] In this way, the traditional single-sided bottom design is prone to stress concentration due to uneven water flow direction. The homogeneous concrete bottom 92 is arranged in pairs on the upstream and downstream sides of the prefabricated concrete bottom plate 91 along the river flow direction, and the water flow impact force is evenly distributed to both sides of the bottom through geometric symmetry, avoiding structural deviation or local damage caused by single-sided stress.

[0088] At the same time, the symmetrical layout of the present scheme can convert dynamic load into axial pressure, improve overall stiffness, and reduce deformation risk.

[0089] In addition, the prefabricated concrete bottom plate 91 serves as a foundation bearing layer and forms a fixed unit with the bottom to meet the installation requirements of the gate being filled with water to float above the bottom plate, then being drained to sink and fall into position on the top of the bottom plate.

[0090] It should be noted that the homogeneous concrete bottom 92 is filled with homogeneous concrete, i.e. plain concrete, which is a reinforced concrete structure made of cement, sand, gravel and water mixed in proportion and hardened. Its overall compression resistance is main, and the tensile strength is low, which is suitable for static load or local load mainly bearing pressure.

[0091] It should be noted that the prefabricated concrete bottom plate 91 is a concrete component pre-made in a factory or temporary pre-made field, containing steel bars (reinforced concrete), which is formed into a specific shape and size after pouring and curing by standardized molds. It has high strength, durability and dimensional accuracy, and can improve toughness and crack resistance through fiber reinforcement and prestress technology.

[0092] The folding sector tide gate mentioned in the above embodiment is used in the following way: when the gate is closed, the movable gate segments on both sides are unfolded gradually, and the gate is sunk to the bottom plate when it reaches the closed position, for resisting storm surges. The bottom plate adopts a prefabricated concrete empty box structure, and the waterway does not need to be interrupted during construction. The waterway is affected less by the use of water transportation and underwater installation. Because the bottom plate bears a large vertical load, pile foundation treatment is performed at the bottom to avoid uneven settlement of the foundation. The upstream and downstream sides of the gate bottom plate are arranged with plain concrete bottom protection structures, and the two sides of the bottom protection are treated with steel sheet piles for anti-seepage to prevent contact scouring of the contact surface between the gate bottom plate and the foundation soil, which can hollow out the bottom of the bottom plate. The outer side of the plain concrete bottom protection is arranged with a hinge row bottom protection structure 6 to prevent water flow from scouring the bottom of the waterway during the operation of the gate.

[0093] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A folding sectorial tide barrier, characterized in that, The gate storage unit (1) and the sector gate (2) are hinged with the support hinge (3), and the sector gate (2) is connected with the opening and closing machine unit for driving it to rotate around the support hinge (3); The gate storage unit (1) comprises a gate storage (11), and the gate storage (11) is provided with two gate storages respectively arranged on both sides of the river channel; Two sector gates (2) are respectively arranged in the two gate storages (11), and any sector gate (2) comprises a fixed gate leaf segment (21) and a first movable gate leaf segment (22), one end of the first movable gate leaf segment (22) is hingedly connected with the fixed gate leaf segment (21), and the other end is folded or unfolded under the action of the driving unit (4); When the sector gate (2) is opened and stored in the gate storage, the other end of the first movable gate leaf segment (22) is folded towards the fixed gate leaf segment (21) under the driving of the driving unit (4), so that the overall storage width of the sector gate (2) is smaller than the overall unfolding width.

2. The folding sector tide gate according to claim 1, wherein The gate storage (11) comprises: A plurality of gate storage bank walls (111) are connected in sequence, and the plurality of gate storage bank walls (111) enclose a containing cavity (112) for containing the fixed gate leaf segment (21) and the first movable gate leaf segment (22).

3. The folding sector tide gate according to claim 2, wherein The gate storage bank wall (111) on the water side is embedded in the foundation; The gate storage unit (1) further comprises a maintenance gate storage (12), and the maintenance gate storage (12) is internally arranged with a movable gate (5), the movable gate (5) is movably arranged in the maintenance gate storage (12), and the movable gate (5) moves upwards towards the water side gate storage bank wall (111) under the action of the driving unit (4) until the containing cavity (112) is blocked.

4. The folding sector tide gate according to any one of claims 1-3, wherein Any sector gate (2) comprises two first movable gate leaf segments (22), and the two first movable gate leaf segments (22) are symmetrically arranged on both sides of the fixed gate leaf segment (21).

5. The folding sector tide gate according to any one of claims 1-3, wherein Any sector gate (2) further comprises a plurality of second movable gate leaf segments, and the second movable gate leaf segments are hingedly connected with the first movable gate leaf segments (22) and / or adjacent second movable gate leaf segments through pivots.

6. The folding sector tide gate according to any one of claims 1-3, wherein The folding sector tide gate further comprises: A hinge row protection bottom (6) is laid on the bottom of the river channel.

7. The folding sector tide gate according to any one of claims 1-3, wherein The folding sector tide gate further comprises: A gate chamber (7) is arranged close to the support hinge (3).

8. The folding sector tide barrier according to claim 7, characterized in that, the gate chamber (7) is a caisson structure.

9. The folding sector tide barrier according to any one of claims 1-3, characterized in that, the folding sector tide barrier further comprises: upstream wing walls (81) arranged in pairs and installed on the two sides of the bank on the upstream side of the gate storage unit (1) for enclosing the water inlet; downstream wing walls (82) arranged in pairs and installed on the two sides of the bank on the downstream side of the gate storage unit (1) for enclosing the water outlet.

10. The folding sector tide barrier according to any one of claims 1-3, characterized in that, the folding sector tide barrier further comprises a fixing unit, which comprises: a prefabricated concrete bottom plate (91) installed on the bottom of the river channel; homogeneous concrete bottom protection (92) arranged in pairs and installed on the upstream side and downstream side of the prefabricated concrete bottom plate (91) respectively along the river direction.

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