Water-saving pool structure for water-saving ship lock
By utilizing the mountain slope and gate wall as the sidewalls of the water-saving pool in the water-saving lock in the mountainous area, an integrated concrete structure is formed, which solves the construction difficulties caused by deep mountain excavation and realizes the construction of the water-saving pool with high efficiency and saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD ENG CO LTD OF CCCC FOURTH HARBOR ENG
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-01
AI Technical Summary
The construction of the water-saving pool structure of the existing water-saving ship lock in the mountainous area requires deep excavation of the mountains on both sides, resulting in a large amount of work, low construction efficiency and inconvenient maintenance.
The slopes of the mountain in the mountain valley and the lock walls on both sides of the lock chamber are used as the side walls of the water-saving pool. By pouring concrete on the bottom and slopes to form an integrated structure, combined with the concrete pouring of the lock walls, an integral concrete structure of bottom lining, slope lining and lock walls is formed, which avoids water leakage and makes the water-saving pool open to the public.
It reduced the amount of mountain excavation, improved construction efficiency, lowered costs, and saved land area, resulting in a compact overall structure.
Smart Images
Figure CN224186714U_ABST
Abstract
Description
A water-saving pool structure for water-saving ship locks Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a water-saving pool structure for a water-saving ship lock. Background Technology
[0002] Water-saving locks are often used in areas with high water level differences or water-scarce regions, such as waterways with significant upstream and downstream water level differences (typically a head difference ≥ 10 meters). Traditional locks consume enormous amounts of water in such scenarios. Water-saving locks, by recycling water in a water-saving pool, can significantly reduce water consumption per passage (water saving rate can reach 30%~60%). Existing water-saving locks are commonly located in plain canals or mountainous canyons. The construction of the water-saving pool for water-saving locks typically requires excavation of earth and rock on both sides of the lock to create sufficient recessed space for the pool structure. For example, in plain canal areas, the water-saving pool requires… The water-saving pool is formed by excavation on both sides of the canal. In mountainous areas, the pool can be designed as an underground structure or laterally embedded in the mountain. This involves excavating the mountain structure on both sides of the canyon to form the pool, thus facilitating the formation of a multi-stage pool structure. However, excavating the pool inside the mountain requires deep excavation, which results in a huge amount of work, increasing construction costs and reducing efficiency. Furthermore, the pool structure formed by deep excavation is a closed structure, making it difficult for personnel and equipment to enter and exit, which also brings great inconvenience to maintenance during later operation. Summary of the Invention
[0003] The purpose of this utility model is to overcome the technical problem that the construction of the water-saving pool structure of the existing water-saving lock in mountainous areas requires deep excavation of the mountains on both sides, resulting in a large amount of work and low construction efficiency, and to provide a water-saving pool structure for water-saving locks.
[0004] This utility model provides a water-saving pool structure for a water-saving lock, including a bottom lining, a slope lining, and a gate wall. The bottom lining is located at the bottom of the water-saving pool, the slope lining is located on the slope of the mountain, and the gate wall is located opposite to the slope lining on the other side. The two sides of the bottom lining are respectively connected to the slope lining and the gate wall. The slope lining and the gate wall are used to form the sidewalls of the water-saving pool.
[0005] Compared to existing water-saving locks in mountainous areas where the water-saving pool is formed by excavating the mountainsides on both sides, the water-saving pool structure of this application can directly utilize the mountain slopes in mountainous canyons and the lock walls on both sides of the lock chamber as the side walls of the water-saving pool. This allows the water-saving pool to be formed on one or both sides of the lock chamber. By pouring concrete on the bottom surface of the water-saving pool and one side of the mountain slope to form a bottom lining and slope lining structure, combined with the concrete pouring of the lock walls, the bottom lining, slope lining, and lock walls can form an integrated concrete pouring structure. This improves the water-saving pool structure's leak-proof performance and prevents water stored in the water-saving pool from seeping downwards into the lock chamber. In addition to utilizing the slope lining and gate wall as the pool wall structure, the water-saving pool can be an open-air structure. During construction, apart from the necessary surface excavation of the mountain to form the slope, there is no need to deeply excavate the mountain to form the water-saving pool inside the mountain. This greatly reduces the amount of construction work, effectively improves construction efficiency, and reduces construction costs. Furthermore, it utilizes the terrain conditions of the mountain canyon itself, and the water-saving pool and gate structure are uniformly and centrally located in the limited space of the canyon, saving the land area occupied by the water-saving pool and lock. The space utilization is more reasonable, and the overall structure of the water-saving lock is more compact.
[0006] Preferably, the gate wall includes a first wall segment, a second wall segment, and a third wall segment that are integrally connected from top to bottom. The thickness of the second wall segment is greater than that of the first wall segment and the third wall segment. The second wall segment is disposed above the foundation of the water-saving pool, and the third wall segment is embedded in the foundation of the water-saving pool.
[0007] Preferably, a plurality of first anchor rods are connected between the third wall section and the foundation of the water-saving pool.
[0008] Preferably, a plurality of the first anchor rods are arranged at intervals from top to bottom along the contact surface between the third wall segment and the foundation of the water-saving pool.
[0009] Preferably, the bottom of the outer eaves of the second wall section is provided with a downwardly protruding anchor block, which is anchored in the foundation of the water-saving pool.
[0010] Preferably, the slope lining is connected to the mountain slope by a number of second anchor rods and a number of prestressed anchor cables.
[0011] Preferably, a plurality of the second anchor rods and a plurality of the prestressed anchor cables are arranged sequentially from top to bottom along the contact surface between the slope lining and the mountain slope.
[0012] Preferably, a number of drainage pipes are embedded in the slope lining, and the drainage pipes penetrate the slope lining and extend into the mountain slope.
[0013] Preferably, a concrete toe cap is provided at the connection between the bottom of the slope lining and the bottom lining.
[0014] Preferably, the sidewall of the water-saving pool also includes two water-retaining dams arranged opposite each other in the upstream and downstream direction of the water-saving lock; and a water inlet is provided on the bottom lining.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model provides a water-saving pool structure for a water-saving lock. By utilizing the mountain slopes in mountainous canyon areas and the lock walls on both sides of the lock chamber as the side walls of the water-saving pool, the pool can be formed on one or both sides of the lock chamber. Concrete is poured onto the bottom surface of the pool and one side of the mountain slope to form a bottom lining and a slope lining structure. Combined with the concrete pouring of the lock walls, the bottom lining, slope lining, and lock walls form an integrated concrete structure, thereby improving the water-saving pool's leak-proof performance and preventing water stored in the pool from seeping downwards into the foundation soil. In addition, by using slope lining and gate walls as the pool wall structure, the water-saving pool can be an open-air structure. During construction, apart from the necessary surface excavation of the mountain to form the slope, there is no need to excavate the mountain deeply to form the water-saving pool inside the mountain. This greatly reduces the amount of construction work involved in mountain excavation, effectively improves construction efficiency, and reduces construction costs. Furthermore, by utilizing the terrain conditions of the mountain canyon itself, the water-saving pool and gate structure are uniformly and centrally located in the limited space of the canyon, saving the land area occupied by the water-saving pool and lock, making more rational use of space, and making the overall structure of the water-saving lock more compact. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the cross-sectional structure of the water-saving ship lock.
[0018] Figure 2 is a schematic diagram of the water-saving pool on one side of the water-saving lock.
[0019] Marked in the image:
[0020] 1. Bottom lining; 2. Slope lining; 21. Toe protection; 3. Gate wall; 31. First wall section; 32. Second wall section; 321. Anchor block; 33. Third wall section; 4. Gate chamber; 5. Water-saving pool; 6. First anchor bolt; 7. Second anchor bolt; 8. Prestressed anchor cable; 9. Drainage pipe; 10. Foundation; 11. Mountain slope. Detailed Implementation
[0021] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0022] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0023] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0024] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0025] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0026] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0027] Example
[0028] This embodiment provides a water-saving pool structure for a water-saving ship lock.
[0029] Figure 1 is a schematic diagram of the cross-sectional structure of the water-saving lock; Figure 2 is a schematic diagram of the structure of the water-saving pool on one side of the water-saving lock.
[0030] As shown in Figures 1 and 2, the water-saving pool structure for the water-saving lock described in this embodiment includes a bottom lining 1, a slope lining 2, and a gate wall 3. The bottom lining 1 is located at the bottom of the water-saving pool 5, the slope lining 2 is located on the mountain slope 11, and the gate wall 3 is located opposite the slope lining 2 on the other side. The two sides of the bottom lining 1 are connected to the slope lining 2 and the gate wall 3 respectively. The slope lining 2 and the gate wall 3 are used to form the side walls of the water-saving pool 5. The water-saving lock has two gate walls 3, which are opposite each other and arranged side by side. A gate chamber 4 is formed between the two gate walls 3. The water-saving pool 5 is located on the other side of the gate wall 3 opposite to the gate chamber 4. That is to say, the water-saving pool 5 and the gate chamber 4 are separated by the gate wall 3. By utilizing the natural sloping terrain of the mountain slope 11 and combining it with the gate wall structure as the space for the water-saving pool 5, the overall structure of the water-saving lock is equivalent to concentrating the gate chamber 4 and the water-saving pools 5 on both sides in the valley between the mountains.
[0031] Compared to existing water-saving lock structures in mountainous areas where the water-saving pool 5 is formed by excavating the mountains on both sides, the water-saving pool structure of this application can directly utilize the mountain slope 11 of the mountain valley area and the gate walls 3 on both sides of the lock chamber 4 as the side walls of the water-saving pool 5. This allows the water-saving pool 5 to be formed on one or both sides of the lock chamber 4. By pouring concrete on the bottom surface of the water-saving pool 5 and one side of the mountain slope 11 to form the bottom lining 1 and the slope lining 2, and combining this with the concrete pouring of the gate walls 3, the bottom lining 1, the slope lining 2, and the gate walls 3 can form an integrated concrete pouring structure. This improves the water-saving pool structure's leak-proof performance and prevents water stored in the water-saving pool 5 from leaking out. The water seeps into the soil and rock of the foundation 10 of the water-saving pool 5. In addition, by using the slope lining 2 and the gate wall 3 as the pool wall structure of the water-saving pool 5, the water-saving pool 5 can be an open structure. During construction, except for the necessary surface excavation of the mountain to form the slope, there is no need to excavate the mountain deeply to form the water-saving pool 5 inside the mountain. This greatly reduces the amount of construction work of mountain excavation, effectively improves construction efficiency, reduces construction costs, and makes use of the terrain conditions of the mountain canyon itself. The water-saving pool 5 and the gate chamber 4 are uniformly and centrally set in the limited space in the canyon, saving the land area of the water-saving pool 5 and the lock. The space utilization is more reasonable and the overall structure of the water-saving lock is more compact.
[0032] In this embodiment, the gate wall 3 includes a first wall segment 31, a second wall segment 32 and a third wall segment 33 that are integrally connected from top to bottom. The thickness of the second wall segment 32 is greater than that of the first wall segment 31 and the third wall segment 33. The second wall segment 32 is located above the foundation 10 of the water-saving pool 5, and the third wall segment 33 is embedded in the foundation 10 of the water-saving pool 5.
[0033] Here, the gate wall structure forming the sidewall of the water-saving pool 5 can be divided into a first wall segment 31, a second wall segment 32, and a third wall segment 33 according to the different thicknesses of each part. Among them, the thickness of the second wall segment 32 is significantly greater than that of the first wall segment 31 and the third wall segment 33. As can be seen from the attached figure, the second wall segment 32 protrudes towards the interior of the water-saving pool 5 and sits on the foundation 10 of the water-saving pool 5; while the third wall segment 33 is located below the second wall segment 32 and is embedded downward into the foundation 10 of the water-saving pool 5. It can be understood that the cooperative structure formed by the second wall segment 32 and the third wall segment 33 anchors the entire gate wall 3 in the foundation 10. The protruding part of the second wall segment 32 is pressed firmly onto the foundation 10 by its gravity, which is equivalent to a gravity gate wall structure. The third wall segment 33 is equivalent to a lining gate wall structure. The combination of the two achieves the anchoring of the entire gate wall 3 structure in the foundation 10.
[0034] Optionally, multiple first anchor rods 6 are connected between the third wall segment 33 and the foundation 10 of the water-saving pool 5. Since the wall thickness of the third wall segment 33 is thinner than that of the second wall segment 32, after embedding it into the foundation 10, in order to enhance the anchoring effect of the third wall segment 33 in the foundation 10, multiple first anchor rods 6 can be pre-embedded on the contact surface between the third wall segment 33 and the foundation 10 before the gate wall 3 is poured. After the gate wall 3 is poured, one end of the first anchor rod 6 is embedded in the concrete of the third wall segment 33, and the other end extends into the foundation 10 to achieve anchoring of the third wall segment 33. The first anchor rod 6 can be perpendicular to the contact surface between the third wall segment 33 and the foundation 10, and multiple first anchor rods 6 can be evenly distributed on the contact surface between the third wall segment 33 and the foundation 10.
[0035] Optionally, multiple first anchor rods 6 are arranged sequentially from top to bottom along the contact surface between the third wall section 33 and the foundation 10 of the water-saving tank 5. The multiple first anchor rods 6 can be arranged vertically at intervals on the contact surface between the third wall section 33 and the foundation 10, or horizontally on the contact surface between the third wall section 33 and the foundation 10 of the water-saving tank 5, or they can be arranged in a matrix structure. The specific number and density of the first anchor rods 6 arranged on the third wall section 33 can be selected according to the actual project, and this utility model does not make specific limitations in this regard.
[0036] In this embodiment, a downwardly protruding anchor block 321 is provided at the bottom of the outer eaves of the second wall segment 32, and the anchor block 321 is anchored in the foundation 10 of the water-saving pool 5. The outer eaves of the protruding part of the second wall segment 32, that is, the end of the second wall segment 32 that extends into the water-saving pool 5, has a downwardly protruding anchor block 321. The anchor block 321 can be embedded into the foundation 10 as the second wall segment 32 sits on it, thereby anchoring the second wall segment 32. The cross-sectional shape of the anchor block 321 can be formed into an inverted triangle or inverted trapezoid, and its sharp lower end can be inserted into the foundation 10 to facilitate the anchoring of the second wall segment 32. It can also be understood that the second wall segment 32 can be engaged with the foundation 10 by the anchor block 321, and together with the first anchor rod 6 installed on the third wall segment 33, the overall fixation of the gate wall structure can be achieved.
[0037] In this embodiment, multiple second anchor rods 7 and multiple prestressed anchor cables 8 connect the slope lining 2 to the mountain slope 11. After the mountain slope 11 is excavated and leveled, shotcrete is poured to form the slope lining 2, which is a concrete slope protection structure. To improve the stability of the slope lining 2 and its fixed connection with the mountain, multiple second anchor rods 7 and prestressed anchor cables 8 can be pre-embedded at the pouring location before shotcrete pouring. One end of the second anchor rod 7 and the prestressed anchor cable 8 extends into the mountain rock and soil for anchoring, and the other end is poured and embedded in the slope lining 2 for fixation. The second anchor rod 7 can improve the stability and anchoring performance of the slope lining 2, and the prestressed anchor cable 8 can maintain the rigidity of the slope lining 2, avoiding deformation, cracking and other problems caused by factors such as temperature changes.
[0038] Optionally, multiple second anchor rods 7 and several prestressed anchor cables 8 are arranged sequentially from top to bottom along the contact surface between the slope lining 2 and the mountain slope 11. The multiple second anchor rods 7 and multiple prestressed anchor cables 8 can be arranged at intervals along the slope inclination direction on the contact surface between the slope lining 2 and the mountain slope 11, or they can be arranged horizontally on the contact surface between the slope lining 2 and the mountain slope 11, or they can be arranged in a matrix structure. The specific number and density of the second anchor rods 7 and prestressed anchor cables 8 arranged on the slope lining 2 can be selected according to the actual project, and this utility model does not make specific limitations in this regard.
[0039] Optionally, multiple drainage pipes 9 are embedded in the slope lining 2. The multiple drainage pipes 9 penetrate the slope lining 2 and extend into the mountain slope 11. The outlet of the drainage pipe 9 is connected to the outside of the slope lining 2, and the inlet extends into the rock and soil of the mountain slope 11. The drainage pipe 9 is set at an angle, that is, the outlet is lower than the inlet, so that the water in the rock and soil of the mountain can flow out of the slope lining 2 along the drainage pipe 9 and flow into the water-saving pool 5. The setting height of the drainage pipe 9 should preferably be higher than the highest water level of the water-saving pool 5 to ensure that the drainage pipe 9 is above the water surface, thereby preventing water in the water-saving pool 5 from entering the drainage pipe 9.
[0040] Optionally, a concrete toe cap 21 is provided at the connection between the bottom of the slope lining 2 and the bottom lining 1. The cross-sectional shape of the toe cap 21 can be an inverted triangle or an inverted trapezoidal structure. The sharp lower end of the toe cap 21 can be inserted into the foundation 10 to anchor the slope lining 2. Alternatively, the slope lining 2 can be engaged with the foundation 10 by the toe cap 21 and then connected with the bottom lining 1. Alternatively, the slope lining 2 and the bottom lining 1 can be cast together to form an integral structure, thereby achieving overall fixation of the slope lining 2 and the bottom lining 1.
[0041] In this embodiment, the sidewall of the water-saving pool 5 also includes two water-retaining dams (not shown in the figure) arranged opposite each other in the upstream and downstream direction of the water-saving lock; a water inlet (not shown in the figure) is provided on the bottom lining 1; here, the two water-retaining dams are located at the upper and lower gate heads respectively, and together with the slope lining 2 and the gate wall 3, they form the four walls of the water-saving pool 5. The water-saving pool 5 and the lock chamber 4 of the water-saving lock are connected by a water conveyance corridor (not shown in the figure). The water conveyance corridor forms a water inlet on the bottom lining 1. Water in the water-saving pool 5 can enter the water conveyance corridor through the water inlet and then enter the lock chamber 4. Water in the lock chamber 4 can also enter the water-saving pool 5 through the water conveyance corridor from the water inlet; a gate is provided in the water conveyance corridor to control the opening and closing of the water conveyance corridor.
[0042] In summary, this utility model provides a water-saving pool structure for a water-saving lock. By utilizing the mountain slopes in mountainous canyon areas and the lock walls on both sides of the lock chamber as the sidewalls of the water-saving pool, the pool can be formed on one or both sides of the lock chamber. Concrete is poured onto the bottom surface of the pool and one side of the mountain slope to form a bottom lining and a slope lining structure. Combined with the concrete pouring of the lock walls, the bottom lining, slope lining, and lock walls form an integrated concrete structure. This improves the water-saving pool's leak-proof performance and prevents water stored in the pool from seeping downwards into the foundation soil. Furthermore, by using slope lining and gate walls as the pool wall structure of the water-saving pool, the water-saving pool can be an open-air structure. During construction, apart from the necessary surface excavation of the mountain to form the slope, there is no need to excavate the mountain deeply to form the water-saving pool inside the mountain. This greatly reduces the amount of construction work involved in mountain excavation, effectively improves construction efficiency, and reduces construction costs. Moreover, it utilizes the terrain conditions of the mountain canyon itself, and the water-saving pool and gate structure are uniformly and centrally located in the limited space of the canyon, saving the land area occupied by the water-saving pool and lock. The space utilization is more reasonable, and the overall structure of the water-saving lock is more compact.
[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water-saving pool structure for a water-saving lock, characterized in that, The system includes a bottom lining (1), a slope lining (2), and a gate wall (3). The bottom lining (1) is located at the bottom of the water-saving pool (5). The slope lining (2) is located on the mountain slope (11). The gate wall (3) is located on the opposite side of the slope lining (2). The two sides of the bottom lining (1) are connected to the slope lining (2) and the gate wall (3) respectively. The slope lining (2) and the gate wall (3) are used to form the sidewalls of the water-saving pool (5).
2. The water-saving pool structure for a water-saving lock according to claim 1, characterized in that, The gate wall (3) includes a first wall segment (31), a second wall segment (32) and a third wall segment (33) that are integrally connected from top to bottom. The thickness of the second wall segment (32) is greater than the thickness of the first wall segment (31) and the thickness of the third wall segment (33). The second wall segment (32) is located above the foundation (10) of the water-saving pool (5), and the third wall segment (33) is embedded in the foundation (10) of the water-saving pool (5).
3. The water saving basin structure for a water saving lock according to claim 2, wherein Several first anchor rods (6) are connected between the third wall section (33) and the foundation (10) of the water-saving pool (5).
4. The water-saving pool structure for a water-saving lock according to claim 3, characterized in that, Several of the first anchor rods (6) are arranged sequentially from top to bottom along the contact surface between the third wall section (33) and the foundation (10) of the water-saving pool (5).
5. The water saving pool structure for a water saving lock according to claim 2, wherein The bottom of the outer eaves of the second wall section (32) is provided with a downward protruding anchor block (321), which is anchored in the foundation (10) of the water-saving pool (5).
6. The water saving pool structure for a water saving lock according to claim 1, wherein The slope lining (2) is connected to the mountain slope (11) by a number of second anchor rods (7) and a number of prestressed anchor cables (8).
7. The water-saving pool structure for a water-saving lock according to claim 6, characterized in that, Several second anchor rods (7) and several prestressed anchor cables (8) are arranged alternately from top to bottom along the contact surface between the slope lining (2) and the mountain slope (11).
8. The water-saving pool structure for a water-saving lock according to any one of claims 1 to 7, characterized in that, A number of drainage pipes (9) are embedded in the slope lining (2), and the drainage pipes (9) penetrate the slope lining (2) and extend into the mountain slope (11).
9. The water-saving pool structure for a water-saving ship lock according to any one of claims 1 to 7, characterized in that, A concrete toe guard (21) is provided at the connection between the bottom of the slope lining (2) and the bottom lining (1).
10. The water-saving pool structure for a water-saving lock according to any one of claims 1 to 7, characterized in that, The side wall of the water-saving pool (5) also includes two water-retaining dams arranged opposite each other in the upstream and downstream direction of the water-saving lock; a water inlet is provided on the bottom lining (1).