Distributed water gate structure

Abstract

The utility model provides a distribution type water gate structure which comprises a plurality of lifting door water gate units arranged under the water surface side by side in the width direction of a river channel, each lifting door water gate unit comprises a water gate base, a buoyancy tank steel gate and inflation and exhaust equipment, a gate bin is arranged on the water gate base, and breast walls in the length direction are arranged on the front side and the rear side of the gate bin; the buoyancy tank steel gate is installed in the gate bin and comprises a gate body and a gate top cap, the gate body is provided with an inner cavity, and a water inlet and outlet hole is formed in the lower portion of the gate body. The inflation and exhaust equipment communicates with an inner cavity of the gate body through an inflation and exhaust hose to adjust the water volume of the inner cavity of the gate body and control lifting of the gate. When no tide or water is blocked, the gate main body sinks until the gate top cap is located at the top end of the breast wall of the gate base; when water or tide needs to be blocked, the buoyancy tank steel gate is inflated and pressurized through the inflation and deflation equipment, the gate gradually ascends to the preset height under the action of buoyancy, and then the tide blocking function is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic gates, and in particular relates to a distributed water gate structure. Background Art

[0002] Sluice gates are important hydraulic structures on rivers. By opening or closing gates, they control upstream and downstream water levels and flows, achieving objectives such as tide control, flood prevention, flood discharge, and water resource allocation. With the impact of climate change and rising sea levels, many large and even mega-coastal cities urgently need to construct tidal gates and other sluice gates at their river mouths.

[0003] Tidal gates are often built in estuary areas. Due to the wide river channel at the estuary, obvious changes in water depth in the riverbed section, and high siltation intensity, the construction of sluices must not only comprehensively consider factors such as site selection, rear land occupation, shoreline occupation, navigation, river flow, silt deposition, and gate structure; but also meet the requirements of ultra-large span and ultra-high clearance required for navigation of large ocean-going ships. Therefore, the technical difficulty of estuary sluice construction is particularly great. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide a distributed sluice structure, which occupies less land and shoreline behind and can adapt to the complex cross-section of the riverbed; at the same time, it meets the requirements of large span and high clearance required for navigation of large ocean-going ships, and has a short opening and closing time, easy operation and a simple structure. A new type of gate is provided to overcome the above-mentioned shortcomings and deficiencies of the existing technology.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A distributed sluice structure includes a plurality of lift gate sluice units arranged side by side under the water surface along the width of the river. Water is blocked by the lift gate sluice units. Each lift gate sluice unit includes a sluice base, a pontoon steel gate, and an inflation and exhaust device arranged in the sluice base.

[0007] A gate chamber is provided on the base of the sluice gate, and the front and rear sides of the gate chamber are breast walls along the length direction;

[0008] The pontoon steel gate includes a gate body and a gate cap. The gate body can be lifted and accommodated in the gate compartment. The bottom of the gate body is connected to the bottom of the gate compartment by a limiting anchor chain. The gate cap is fixedly connected to the gate body. The gate body and the gate cap are provided with interconnected inner cavities. The lower part of the gate body is provided with water inlet and outlet holes.

[0009] The inflation and exhaust equipment is connected to the inner cavity of the gate body through the inflation and exhaust hose to adjust the water volume in the inner cavity of the gate body and control the lifting and lowering of the gate; when it is not to block tide or water, the inlet and outlet holes at the lower part of the pontoon steel gate are opened, water flows into the inner cavity of the gate body, and the gate body sinks to the top of the breast wall where the gate cap is located at the base of the gate; when it is necessary to block water or tide, the pontoon steel gate is inflated and pressurized through the inflation and exhaust equipment, and the water in the inner cavity of the pontoon steel gate is discharged outward through the inlet and outlet holes at the bottom of the pontoon steel gate, and the gate gradually rises to a predetermined height under the action of buoyancy, thereby playing the role of blocking tide.

[0010] In one embodiment, the shape of the gate body is adapted to the gate compartment.

[0011] In one embodiment, a comprehensive corridor is set along the length direction at the lower part of the sluice base, and concave and convex grooves are set between two adjacent sluice bases to increase the integrity of the bases, and a water-stop structure is set for anti-seepage treatment.

[0012] In one embodiment, the exterior of the pontoon steel gate is enclosed by steel plates, and a number of longitudinal and transverse supporting steel beams and a number of oblique steel truss support frames are arranged inside. A number of vertical partitions are arranged at intervals along the vertical direction inside the gate. The plates divide the interior of the pontoon steel gate body into a number of independently sealed pontoon compartments. The pontoon compartments can prevent instability caused by the shaking of water in the compartment during the lifting and lowering of the gate, and are also convenient for subsequent compartment maintenance.

[0013] In one of the embodiments, a sub-floating tank steel gate slot is provided at the top surface of the pontoon steel gate of the sluice, and a sub-floating tank steel gate is installed in the sub-floating tank steel gate slot. The sub-floating tank steel gate is raised and lowered by filling and discharging water, thereby increasing the overall water retaining height of the gate, and by storing the sub-floating tank steel gate in the main pontoon gate, the height of the sluice base and the underwater engineering volume are reduced.

[0014] In one embodiment, a removable breast wall top can be provided on the upper part of the breast wall of the sluice to reserve conditions for deepening the waterway for subsequent expansion and dredging.

[0015] In one embodiment, the bottom of the sluice gate can be configured to be flat or stepped to accommodate changes in the riverbed morphology.

[0016] Due to the adoption of the above technical solution, the beneficial effects of the utility model include:

[0017] 1. The utility model effectively decomposes a large-span gate into several independent units, breaking through the limitation of the large span of traditional gates and being applicable to ultra-large-span sluice projects.

[0018] 2. The hydraulic structure of the utility model is entirely located underwater, and there is no structure in the center of the river channel, which has little impact on the river flow and riverbed evolution, and also has little impact on ship navigation.

[0019] 3. The hydraulic structure of the utility model is entirely located underwater, which greatly reduces the occupation of the land and coastline behind.

[0020] 4. Each unit of the utility model can operate independently, and the opening and closing operation is simple, and the opening and closing time of gates with larger spans and larger volumes is greatly shortened.

[0021] 5. The utility model reduces the impact of silt accumulation on gate operation. Most traditional gates require a sill, and silt accumulation on the sill will affect the operation of the gate. However, the utility model has no sill. Even if there is a certain amount of silt accumulation on the upper part, the buoyancy can be increased by increasing the drainage volume of the gate cavity, breaking through the silt accumulation layer and operating normally.

[0022] 6. Although the utility model is underwater for a long time, its maintenance and inspection can be carried out by dry operation in separate compartments and zones, or the gate can be lifted and floated to the dock or shore for maintenance. Compared with other door types that are underwater for a long time (such as traditional flap doors), the maintenance operation conditions are better, solving the problem of difficult underwater maintenance and inspection.

[0023] 7. The top of the chest cavity of the utility model can be made into a movable splicing form, and the detachable section at a certain height on the upper part can be removed to meet the needs of later dredging development of the waterway.

[0024] 8. The utility model is decomposed into several independent units. The bottom of the sluice gate can adopt a stepped shape that can adapt to the changes in the riverbed shape. It can not only reduce the impact of the sluice gate on the river channel, but also solve the problem of high siltation intensity and difficult silt removal and maintenance on the sill top of the flat-bottomed beach section of conventional sluice gates.

[0025] 9. Each unit of the utility model is manufactured in sections and assembled on site, which can reduce the impact of the construction team on river navigation.

[0026] 10. The utility model has a simple structure, and each water gate unit is independent of each other, which reduces the difficulty of designing a large-span steel structure. Moreover, when one water gate unit fails, it does not affect the structural safety and use of other water gate units.

[0027] 11. The utility model can block bidirectional water head difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a cross-sectional view of a sluice gate according to an embodiment of the present invention when it is in a closed state (the gate is sunken).

[0029] Figure 2 This is a cross-sectional view of a sluice gate according to an embodiment of the present invention when it is in an open (gate floating) state.

[0030] Figure 3 This is a longitudinal cross-sectional view of a sluice gate according to an embodiment of the present invention when it is closed (the gate is sunk).

[0031] Figure 4 for Figure 3 Cross-sectional view of section AA (the sluice gate is in the closed (gate sunk) state).

[0032] Figure 5 This is a longitudinal sectional view of a sluice gate according to an embodiment of the present invention when it is open (the gate is floating).

[0033] Figure 6 This is a cross-sectional view of a sub-floating tank steel gate according to an embodiment of the present invention (the gate is in the closed (gate sunk) state).

[0034] Figure 7 This is a cross-sectional view of a sub-floating tank steel gate according to an embodiment of the present invention (the gate is in the open (gate floating) state).

[0035] Figure 8 This is a solution in which a detachable section is provided on the top of the chest cavity of the gate compartment of an embodiment of the present invention (the water gate is in the closed (gate sinking) state).

[0036] Figure 9 This is a schematic longitudinal section diagram of an embodiment of the utility model when the gate bottom is arranged in a stepped shape to adapt to the riverbed shape (the sluice is in the closed (gate sunk) state).

[0037] Figure 10 This is a schematic longitudinal section diagram of an embodiment of the present invention when the gate bottom is arranged in a stepped shape to adapt to the riverbed shape (the sluice is in the open (gate floating) state). DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] For ease of description, spatially relative terms, such as "below," "beneath," "below," "above," "upper," "fore-and-aft," "lengthwise," etc., will be used, where necessary, to describe the relationship of one element or feature relative to another element or feature shown in the drawings. The spatially relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings. For example, if the device in the drawings is turned over, an element described as "below" or "beneath" another element or feature would be oriented "above" the other element or feature.

[0040] Unless otherwise defined, the terms used herein have the same meaning as commonly understood by ordinary technicians in the field to which the present invention belongs, and the terms should be understood to have the same meaning as in the context of the relevant technology and should not be understood in an idealized or overly formal way, except where explicitly defined in the present invention.

[0041] See also Figures 1 to 5 , the figure shows a distributed sluice structure, including a number of lifting gate sluice units 1 arranged side by side along the width of the river, such as Figure 3 and Figure 5 Each lifting gate sluice unit 1 includes a sluice base 2 and a pontoon steel gate 3. Figure 1 and Figure 2 shown.

[0042] The upper opening cavity of the sluice base 2 is the gate chamber 4, and the pontoon steel gate 3 is installed in the gate chamber 4. The sluice base 2 and the pontoon steel gate 3 are combined together, and the pontoon steel gate 3 is raised and lowered in the gate chamber 4 by the action of buoyancy, achieving the function of blocking water and tide. When a certain amount of water is injected into the inner cavity of the pontoon steel gate 3, the pontoon steel gate 3 sinks into the gate chamber 4, realizing the opening of the gate. Figure 1 and Figure 3 As shown; when the pontoon steel gate 3 is inflated and pressurized by the inflation and exhaust equipment, the water in the inner cavity of the pontoon steel gate 3 is discharged outward through the inlet and outlet holes 9 at the bottom of the pontoon steel gate 3, and the gate gradually rises until the limit anchor chain is tightened, limiting the floating of the pontoon steel gate 3, thereby playing a tide-blocking role, as shown in FIG. Figure 2 and Figure 5 shown.

[0043] To facilitate a further understanding of the working principle of a distributed sluice structure of the present invention, the following describes in detail the sluice base 2, the pontoon steel gate 3, and a typical embodiment of the gate.

[0044] See also Figures 1 to 5 The upper part of the sluice base 2 is an open cavity gate chamber 4, and the front and rear sides of the gate chamber 4 are breast walls 5 along the length direction.

[0045] A comprehensive corridor 6 (including corridors required for maintenance, pipelines, etc.) is set along the length direction at an appropriate position outside the gate chamber 4. A base inter-base seam and a water-stop structure 7 are set between two adjacent sluice bases 2 to increase the integrity of the bases and play an anti-seepage role.

[0046] See also Figures 1 to 5 The gate cap 8 on the upper part of the pontoon steel gate 3 is located on the top of the breast wall 5 of the gate base 2, and a water-stop structure is set between the two.

[0047] The lower part of the pontoon steel gate 3 is provided with an inlet and outlet hole 9, and the side of the gate cap 8 is provided with a water inlet and exhaust hole 12. The inflation and exhaust equipment 10 is connected to the gate cavity with an inflation and exhaust hose 11, and the buoyancy and sinking of the pontoon steel gate 3 are controlled by adjusting the water volume in the gate cavity.

[0048] The pontoon gate 3 is constructed from steel plates, with several longitudinal and transverse support beams and diagonal steel truss supports installed inside. Vertical partitions are spaced vertically inside the gate, dividing the interior of the pontoon gate into several independently sealed pontoon compartments. These compartments prevent instability caused by water sloshing during gate raising and lowering, while also facilitating subsequent maintenance.

[0049] See also Figures 3 to 5 When a super-large span water retaining is required, multiple lifting gate water gate units 1 are arranged side by side at the water retaining position. The specific implementation method is as follows:

[0050] (1) Complete the prefabrication of multiple sluice bases 2, place them in the designated locations on the canal, and, drawing on the experience gained in immersed tube tunnel construction, sink and install them. Joints and water-stopping structures 7 are provided between the sluice bases 2 to prevent water seepage. Alternatively, the construction of the sluice bases 2 can be divided into sections, with cofferdams installed on-site, and with a sectioned on-site casting method.

[0051] (2) After the installation of each sluice base 2 is completed, the prefabricated pontoon steel gate 3 and the limit anchor chain 13 are installed in the gate compartment 4 respectively.

[0052] (3) After the installation of each pontoon steel gate 3, the water-stopping member 7 between the gates and the limiting anchor chain 13 is completed, the super-large span water blocking can be achieved, such as Figure 5 As shown in the figure, under normal circumstances, the gate is closed, that is, the pontoon steel gate 3 is sunken and hidden in the gate compartment 4. This is achieved by first simultaneously opening the lower water inlet and outlet vents 9 and the upper water inlet and outlet vents 12 of the pontoon steel gate 3, allowing water to enter the inner cavity of the pontoon steel gate 3 through the water inlet and outlet vents 9. When the upper water inlet and outlet vents 12 are submerged in water, water also begins to flow into the water inlet and outlet vents 12, and finally the gate cap 8 of the pontoon steel gate 3 rests on the breast wall 5, completing the sinking of the pontoon steel gate 3.

[0053] When the gate needs to be opened, the buoyancy of the pontoon steel gate 3 rises to a certain height. This is achieved by first opening the water inlet and outlet holes 9 at the bottom of the pontoon steel gate 3, closing the water inlet and outlet holes 12 at the top, and inflating the gate cavity through the inflation and exhaust equipment 10 and the inflation and exhaust pipe 11. The air pressure is used to discharge the water from the pontoon steel gate 3 through the water inlet and outlet holes 9. When the amount of water in the gate cavity is discharged to a certain extent, the pontoon steel gate 3 gradually rises under the action of buoyancy until the gate rises to a predetermined height. The limiting anchor chain 13 between the pontoon steel gate 3 and the sluice base 2 is tightened. At this time, the pontoon steel gate 3 will stabilize at the predetermined height, realizing the water-blocking function of the sluice. If a combination of multiple lifting gate sluice units 1 is arranged side by side, ultra-large span water blocking is achieved.

[0054] join Figure 6 and Figure 7 In a preferred embodiment of the present invention, a sub-float steel gate slot is provided on the top surface of the pontoon steel gate 3 of the sluice, and a sub-float steel gate 3-1 is installed in the sub-float steel gate slot. The sub-float steel gate 3-1 is raised and lowered by filling and discharging water, thereby increasing the overall water retaining height of the gate, and by storing the sub-float steel gate 3-1 in the main pontoon steel gate 3, the height of the sluice base 2 and the underwater engineering volume are reduced.

[0055] join Figure 8 In a preferred embodiment of the present invention, a removable breast wall top 14 is designed for the breast wall 5 of the sluice to reserve conditions for deepening the waterway for later expansion and dredging; that is, when the waterway needs to be deepened in the later stage, the upper removable breast wall top 14 can be removed to lower the top elevation and increase the water depth of the waterway without affecting the normal operation in the later stage.

[0056] See also Figure 9 and Figure 10 The bottom of the sluice gate can be stepped to better adapt to the cross-sectional shape of the riverbed. For U-shaped or V-shaped river channels, the stepped shape can better adapt to the cross-sectional shape of the riverbed, which can not only reduce the impact of the sluice gate on the river channel, but also help reduce the sill top siltation intensity and subsequent desilting maintenance of the flat bottom section of the conventional sluice gate.

[0057] The above description of the embodiments is intended to facilitate understanding and use of the present invention by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A distributed sluice structure, characterized in that: It includes a number of lifting gate water gate units arranged side by side under the water surface along the width of the river. Water is blocked by a number of lifting gate water gate units. Each lifting gate water gate unit includes a water gate base, a pontoon steel gate and an inflation and exhaust device set in the water gate base. A gate chamber is provided on the base of the sluice gate, and the front and rear sides of the gate chamber are breast walls along the length direction; The pontoon steel gate includes a gate body and a gate cap. The gate body can be lifted and accommodated in the gate compartment. The bottom of the gate body is connected to the bottom of the gate compartment by a limiting anchor chain. The gate cap is fixedly connected to the gate body. The gate body and the gate cap are provided with interconnected inner cavities. The lower part of the gate body is provided with water inlet and outlet holes. The inflation and exhaust equipment is connected to the inner cavity of the gate body through the inflation and exhaust hose to adjust the water volume in the inner cavity of the gate body and control the lifting and lowering of the gate; when it is not to block tide or water, the inlet and outlet holes at the lower part of the pontoon steel gate are opened, and water flows into the inner cavity of the gate body, and the gate body sinks to the top of the breast wall where the gate cap is located at the base of the gate; when it is necessary to block water or tide, the pontoon steel gate is inflated and pressurized through the inflation and exhaust equipment, and the water in the inner cavity of the pontoon steel gate is discharged outward through the inlet and outlet holes at the bottom of the pontoon steel gate, and the gate gradually rises to a predetermined height under the action of buoyancy, thereby playing the role of blocking tide.

2. The distributed sluice structure according to claim 1, characterized in that: The shape of the gate body is adapted to the gate compartment.

3. The distributed sluice structure according to claim 1, characterized in that: A comprehensive corridor is set at the lower part of the sluice base along the length direction, and a concave and convex groove is set between two adjacent sluice bases to increase the integrity of the bases, and a water-stop structure is set for anti-seepage treatment.

4. The distributed sluice structure according to claim 1, characterized in that: The interior of the pontoon steel gate is divided into several independently sealed pontoon compartments, which can prevent instability caused by water shaking in the compartment during the gate lifting process, and also facilitate subsequent compartment maintenance.

5. The distributed sluice structure according to claim 1, characterized in that: A sub-floating tank steel gate slot is provided at the top surface of the pontoon steel gate, and a sub-floating tank steel gate is installed in the sub-floating tank steel gate slot. The sub-floating tank steel gate is raised and lowered by filling and discharging water, thereby increasing the overall water retaining height of the gate, and the height of the sluice base and the underwater engineering volume are reduced by storing the sub-floating tank steel gate in the main pontoon gate.

6. The distributed sluice structure according to claim 1, characterized in that: A detachable breast wall top can be provided on the upper part of the breast wall to reserve conditions for deepening the channel for later expansion and dredging.

7. The distributed sluice structure according to claim 1, characterized in that: The bottom of the sluice base can be configured to be flat or stepped to accommodate changes in the riverbed shape.

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