Drainable water isolation structure, ship lock drainage system and double-line ship lock drainage mode thereof

Abstract

The present application relates to ship lock filling and draining technology field, concretely is the water-proof structure of draining, ship lock draining system and its double-line ship lock draining mode, wherein the water-proof structure of draining, the structure includes: the water-proof wall of built ship lock side and the water-proof wall of extension ship lock side, the water-proof wall of built ship lock side and the water-proof wall of extension ship lock side are parallelly arranged and the height is same, the space is left between two walls, forms the draining channel, the draining channel is connected with the extension ship lock draining corridor, makes the half water body in the lock chamber pass through the extension ship lock draining corridor and enters the draining channel, and is discharged into the main river; the ship lock draining system and double-line ship lock draining mode of application water-proof structure of draining, the construction of this technology does not need to cross the built ship lock approach channel, does not affect the operation of ship lock, and does not need to set up the underground box culvert, and the construction is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship lock filling and emptying water, in particular to a drainage water isolation structure suitable for expanding a ship lock on the basis of an existing ship lock, a ship lock drainage system and a double-line ship lock drainage method. BACKGROUND

[0002] The ship lock approach channel is an important part of the navigation structure and a channel connecting the ship lock with the upstream and downstream river channels. Its role is to ensure the safe and smooth entry and exit of ships into the ship lock, provide safe berthing for ships waiting to pass through the lock, and enable the ships to avoid each other. The approach channel should have sufficient water depth and appropriate flow conditions to ensure the safe berthing of ships and the safe operation of ships passing through the lock. The flow conditions in the approach channel are relatively complex due to the influence of ship lock filling and emptying water. Non-constant flow is generated in the approach channel during ship lock filling and emptying, causing water surface fluctuations and changes in flow velocity and flow pattern, affecting ship navigation safety, and causing a significant increase in mooring force for berthed ships, posing a serious problem for berthing safety. With the development of water transportation, the capacity of many ship locks has become unable to meet the growing demand for water transportation, and multiple-line ship locks have been built. Due to topographic conditions, most expanded ship locks are arranged side by side with existing ship locks, and the filling and emptying water flow of two-line ship locks has a mutual superimposed effect, making the non-constant flow in the approach channel more complex, especially for the downstream approach channel of the ship lock, where the water depth is relatively small, and the hydraulic problem is more prominent. How to solve the flow conditions in the downstream approach channel of a double-line ship lock has become a major concern for designers and researchers in recent years.

[0003] Currently, such as the planar arrangement scheme and design optimization innovation of Xiangqi Second-line Ship Lock, Liu Zhimin, Li Zhicheng, Journal of Waterway Engineering, January 2023, No. 1 Figure 2The second line ship lock arrangement scheme, three schemes are recorded. The improvement technology of the flow condition of the approach channel under the double-line ship lock mainly includes the following: (1) the solid water retaining wall is arranged between the double-line ship lock approach channels, the two ship lock approach channels are completely separated, the function is to eliminate the mutual influence between the two ship locks, and to avoid the large cross flow near the ship pier during the operation of the ship lock. The disadvantage is that during the ship lock drainage, the drainage area is limited to a single independent approach channel, especially for the expansion of the higher grade ship lock, because the lock chamber size is larger, the drainage flow is larger, and because the drainage area is relatively small, it will cause the water level fluctuation and the longitudinal flow velocity in the approach channel to be too large, and the ship navigation and parking conditions are not met; (2) the bottom transparent water retaining wall is arranged between the double-line ship lock approach channels, the function is to ensure the connection of the two approach channels after using the bottom transparent structure, which is beneficial to the diffusion of the ship lock drainage water body and reduces the flow velocity and fluctuation in the approach channel, and the disadvantage is that under the condition of large ship lock drainage flow and low approach channel water level, the bottom transparent water flow is concentrated, which is easy to produce vortex, bubble vortex and other adverse flow states, thereby affecting the safe navigation or parking of the ship; (3) the side drainage way is adopted, all or part of the water body discharged from the ship lock is introduced into the downstream river channel through the underground box culvert, which can effectively solve the problem of the flow condition of the approach channel. However, this technology is generally suitable for the synchronous construction of double-line ship locks, and for the expansion of the ship lock, the side drainage box culvert needs to pass through the built ship lock approach channel, and the construction will seriously affect the operation of the built ship lock, so it is generally difficult to apply. SUMMARY

[0004] The purpose of the present application is to provide a drainage water retaining structure suitable for expanding the ship lock on the basis of the existing ship lock, a ship lock drainage system and a double-line ship lock drainage mode, and for the expansion of the ship lock, the side drainage box culvert needs to pass through the built ship lock approach channel, and the construction will seriously affect the operation of the built ship lock, so it is generally difficult to apply.

[0005] In order to achieve the above purpose, the present application provides one of the following technical solutions, a drainage water retaining structure, which comprises:

[0006] The built ship lock side water retaining wall 1 and the expansion ship lock side water retaining wall 2;

[0007] The built ship lock side water retaining wall 1 and the expansion ship lock side water retaining wall 2 are arranged in parallel and have the same height, and a space is left between the two walls to form a drainage passage 3;

[0008] The drainage passage 3 is connected with the expansion ship lock drainage corridor, so that half of the water body in the lock chamber enters the drainage passage 3 through the expansion ship lock drainage corridor and is discharged into the main river channel.

[0009] Further, the structure further comprises:

[0010] A water retaining wall 4 is arranged at the joint of the water discharge passage 3 and the extension ship lock water discharge corridor and is perpendicular to the water discharge direction, which blocks the water flow to the upstream and makes the water flow to the downstream river in a single direction.

[0011] Further, the structure further comprises:

[0012] An energy dissipation facility 5 is arranged at the joint of the water discharge passage 3 and the extension ship lock right water discharge corridor, which is used to reduce the water flow speed into the water discharge passage 3 and to make the water flow into the water discharge passage 3 smoothly.

[0013] Further, the energy dissipation facility 5 comprises at least three energy dissipation weirs 13, and the height of each energy dissipation weir 13 is increased along the water flow direction.

[0014] The application provides another technical scheme as follows: a ship lock water discharge system, which comprises: an existing ship lock 6, an existing ship lock downstream approach channel 7 connected with the existing ship lock 6, an extension ship lock 8 and an extension ship lock downstream approach channel 9 connected with the extension ship lock 8, and the water dischargeable water retaining structure is arranged between the existing ship lock downstream approach channel 7 and the extension ship lock downstream approach channel 9.

[0015] Further, the extension ship lock 8 comprises an extension ship lock right water discharge corridor 10 and an extension ship lock left water discharge corridor 11.

[0016] Further, the water dischargeable water retaining structure is connected with the extension ship lock right water discharge corridor 10.

[0017] Further, the extension ship lock right water discharge corridor 10 and the extension ship lock left water discharge corridor 11 are both provided with working valves 12.

[0018] The application provides another technical scheme as follows: a double-line ship lock water discharge method, which is applied to the ship lock water discharge system as described above, and the method comprises the following steps:

[0019] S1, when the extension ship lock 8 is in water discharge operation, the working valves 12 of the extension ship lock right water discharge corridor 10 and the extension ship lock left water discharge corridor 11 are opened;

[0020] S2, part of the water in the chamber of the extension ship lock 8 enters the extension ship lock downstream approach channel 9 through the extension ship lock left water discharge corridor 11, and the other part of the water enters the water discharge passage 3 through the extension ship lock right water discharge corridor 10 and then is discharged into the downstream river.

[0021] S3, when the existing ship lock 6 is in water discharge operation, the water flow is directly discharged into the existing ship lock downstream approach channel and is discharged independently through the existing ship lock side water retaining wall 1, which does not interfere with the water discharge operation of the extension ship lock 8.

[0022] Further, in S2, when another part of the water body enters the water release passage 3, the water flow speed entering the water release passage 3 is reduced after the common energy dissipation of the energy dissipation facilities 5, and the water flow enters the water release passage 3 stably.

[0023] Compared with the prior art, the beneficial effects of the present application are:

[0024] The technical feature of the present application is to set a multi-functional water isolation wall between the expanded ship lock and the downstream approach channel of the built ship lock, which firstly separates the two ship lock approach channels completely to eliminate the mutual influence between the two ship locks. Meanwhile, the water release passage is set in the water isolation wall, and the part of the water body released from the expanded ship lock is guided into the downstream river channel through the passage to ensure that the water flow condition in the approach channel meets the requirements. The construction of the technology does not need to pass through the built ship lock approach channel, does not affect the operation of the ship lock, and does not need to set an underground box culvert, and the construction is simple. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram in the embodiment 1 of the present application;

[0026] Figure 2 It is a structural schematic diagram in the embodiment 2 of the present application;

[0027] Figure 3 It is a structural schematic diagram in the embodiment 3 of the present application;

[0028] Figure 4 It is an enlarged view of A in the embodiment 3 of the present application;

[0029] Figure 5 It is a B-B sectional view in the embodiment 3 of the present application

[0030] 1, built ship lock side water isolation wall; 2, expanded ship lock side water isolation wall; 3, water release passage; 4, water retaining wall; 5, energy dissipation facility; 6, built ship lock; 7, downstream approach channel of built ship lock; 8, expanded ship lock; 9, downstream approach channel of expanded ship lock; 10, right side water release corridor of expanded ship lock; 11, left side water release corridor of expanded ship lock; 12, working valve; 13, energy dissipation sill. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment 1

[0033] As Figure 1As shown, the water-releasing structure comprises:

[0034] The water retaining wall 1 of the existing ship lock and the water retaining wall 2 of the expanded ship lock;

[0035] The water retaining wall 1 of the existing ship lock and the water retaining wall 2 of the expanded ship lock are arranged in parallel and have the same height, and a space is left between the two walls to form a water-releasing channel 3;

[0036] Specifically, the water-releasing channel 3 is connected with the water-releasing corridor of the expanded ship lock, so that half of the water in the lock chamber enters the water-releasing channel 3 through the water-releasing corridor of the expanded ship lock and is discharged into the main river channel.

[0037] A multifunctional water retaining wall is arranged between the downstream approach channels of the expanded ship lock and the existing ship lock. First, the water retaining wall completely separates the approach channels of the two ship locks to eliminate the mutual influence between the two ship locks. Meanwhile, a water-releasing channel is arranged in the water retaining wall to guide the part of the water discharged from the expanded ship lock into the downstream river channel through the channel, so as to ensure that the water flow condition in the approach channel meets the requirements.

[0038] Embodiment 2

[0039] As shown, the difference from embodiment 1 is that further, the structure further comprises: Figure 2

[0040] The water retaining wall 4 is arranged at the connection between the water-releasing channel 3 and the water-releasing corridor of the expanded ship lock and is perpendicular to the water-releasing direction, so as to block the water flow from flowing upstream and make the water flow unidirectionally downward into the downstream river channel.

[0041] Embodiment 3

[0042] As shown, the difference from embodiments 1 and 2 is that the structure further comprises: Figures 3-5

[0043] The energy dissipation facility 5 is arranged at the connection between the water-releasing channel 3 and the right water-releasing corridor of the expanded ship lock, and is used to reduce the water flow speed entering the water-releasing channel 3 and smoothly enter the water-releasing channel 3.

[0044] Specifically, the energy dissipation facility 5 comprises at least three energy dissipation weirs 13, and the height of each energy dissipation weir 13 is sequentially increased along the water flow direction, so as to further reduce the water flow speed entering the water-releasing channel 3 and smoothly enter the water-releasing channel 3.

[0045] Embodiment 4

[0046] As shown, the difference from embodiments 1 to 3 is that further, the structure further comprises: Figures 1-3 ​​As shown, the ship lock drainage system comprises: an existing ship lock 6, an existing ship lock downstream approach channel 7 connected with the existing ship lock 6, an expanded ship lock 8, and an expanded ship lock downstream approach channel 9 connected with the expanded ship lock 8. The water-blocking structure described in Embodiment 1, Embodiment 2, and Embodiment 3 is arranged between the existing ship lock downstream approach channel 7 and the expanded ship lock downstream approach channel 9.

[0047] Further, the expanded ship lock 8 comprises an expanded ship lock right side drainage corridor 10 and an expanded ship lock left side drainage corridor 11.

[0048] Further, the water-blocking structure is connected with the expanded ship lock right side drainage corridor 10.

[0049] Further, the expanded ship lock right side drainage corridor 10 and the expanded ship lock left side drainage corridor 11 are both provided with working valves 12.

[0050] When drainage is needed, the working valves 12 of the expanded ship lock right side drainage corridor 10 and the expanded ship lock left side drainage corridor 11 can be opened at the same time, so that another part of the water body enters the drainage passage 3 through the expanded ship lock right side drainage corridor 10 and then flows into the downstream river channel.

[0051] Embodiment 5

[0052] The double-line ship lock drainage method is applied to the ship lock drainage system described in Embodiment 4, and the method comprises the following steps:

[0053] S1, when the expanded ship lock 8 is in drainage operation, the working valves 12 of the expanded ship lock right side drainage corridor 10 and the expanded ship lock left side drainage corridor 11 are opened;

[0054] S2, part of the water body in the chamber of the expanded ship lock 8 enters the expanded ship lock downstream approach channel 9 through the expanded ship lock left side drainage corridor 11, and another part of the water body enters the drainage passage 3 through the expanded ship lock right side drainage corridor 10, and then flows into the downstream river channel.

[0055] Further, in S2, when another part of the water body enters the drainage passage 3, the water flow speed entering the drainage passage 3 is reduced through the joint energy dissipation of the water retaining wall 4 and the energy dissipation facility 5, and the water flow enters the drainage passage 3 stably.

[0056] S3, when the existing ship lock 6 is in drainage operation, the drainage flow directly enters the existing ship lock downstream approach channel, and the drainage is completed independently through the existing ship lock side water-blocking wall 1, without interfering with the drainage operation of the expanded ship lock 8.

[0057] At this time, only half of the water in the lock chamber of the expanded lock enters the downstream approach channel 4 of the expanded lock, which can effectively reduce the flow velocity and water level fluctuations caused by the lock's discharge. Simultaneously, due to the water-blocking effect of the side baffle wall 2 of the expanded lock, the discharge flow from the expanded lock 8 will not affect the water flow conditions in the downstream approach channel 7 of the existing lock. Correspondingly, when the existing lock 6 is discharging water, the discharge flow will not affect the water flow conditions in the downstream approach channel 9 of the expanded lock due to the water-blocking effect of the side baffle wall 1 of the existing lock.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drainable waterproof structure, characterized in that, The structure includes: The existing lock side water-blocking wall (1) and the expanded lock side water-blocking wall (2); The existing lock side water-blocking wall (1) and the expanded lock side water-blocking wall (2) are set parallel to each other and have the same height. There is a space between the two walls to form a drainage channel (3). The discharge channel (3) is connected to the expanded lock discharge corridor, so that half of the water in the lock chamber enters the discharge channel (3) through the expanded lock discharge corridor and is discharged into the main river channel.

2. The drainable waterproof structure according to claim 1, characterized in that, The structure also includes: The water-retaining wall (4) is set at the connection between the water discharge channel (3) and the expanded lock water discharge corridor and is perpendicular to the water discharge direction. It blocks the water flow to flow upstream and causes the water to flow downstream into the downstream river channel in one direction.

3. The drainable waterproof structure according to claim 1, characterized in that, The structure also includes: Energy dissipation facility (5) is installed at the connection between the spillway (3) and the right spillway of the expanded lock, and is used to reduce the water flow velocity entering the spillway (3) and smoothly enter the spillway (3).

4. The drainable waterproof structure according to claim 3, characterized in that, The energy dissipation facility (5) includes at least three energy dissipation sills (13), the height of each energy dissipation sill (13) increasing sequentially along the water flow direction.

5. Lock spillway system, which includes: The existing lock (6), the downstream approach channel (7) of the existing lock connected to the existing lock (6), the expanded lock (8), and the downstream approach channel (9) of the expanded lock connected to the expanded lock (8) are characterized in that a water-retaining structure as described in any one of claims 1-4 is provided between the downstream approach channel (7) of the existing lock and the downstream approach channel (9) of the expanded lock.

6. The lock drainage system according to claim 5, characterized in that, The expanded lock (8) includes a right-side spillway (10) and a left-side spillway (11).

7. The lock drainage system according to claim 6, characterized in that, The spillway structure is connected to the spillway (10) on the right side of the expanded lock.

8. The lock drainage system according to claim 7, characterized in that, Both the right-side spillway (10) and the left-side spillway (11) of the expanded lock are equipped with working valves (12).

9. A double-line ship lock water discharge method, characterized in that, This method is applied to the lock drainage system of claim 8, and the method includes: S1. When the expanded lock (8) is in operation, open the working valves (12) of the right-side spillway (10) and the left-side spillway (11) of the expanded lock. S2. Part of the water in the lock chamber of the expanded lock (8) enters the downstream navigation channel (9) of the expanded lock through the left spillway (11) of the expanded lock, and the other part of the water enters the spillway (3) through the right spillway (10) of the expanded lock, and then flows into the downstream river channel. S3. When the existing lock (6) is in operation, the downstream water flow directly enters the downstream approach channel of the existing lock and completes the water discharge independently through the side water barrier (1) of the existing lock, without interfering with the operation of the expanded lock (8).

10. The double-line lock water discharge method according to claim 9, characterized in that, In S2, when another part of the water enters the discharge channel (3), after being jointly dissipated by the water retaining wall (4) and the energy dissipation facility (5), the water flow velocity entering the discharge channel (3) decreases and enters the discharge channel (3) smoothly.

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