A lock wall structure and a ship lock

By setting embedded teeth and inclined anchor bolts on the bottom surface of the gravity wall, the problems of large surrounding rock excavation and high construction cost in the existing technology are solved, and the stability and durability of the gate wall structure are improved.

CN224338205UActive Publication Date: 2026-06-09THE THIRD ENG CO LTD OF CCCC FOURTH HARBOR ENG

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
2026-06-09

AI Technical Summary

Technical Problem

In existing hybrid gate walls, the gravity wall maintains stability by its own weight and by anchoring to the surrounding rock with the lining wall. This requires an increase in the amount of surrounding rock excavation to accommodate a thicker gravity wall and lining wall, which increases construction costs and complexity.

Method used

An embedded tooth is set on the bottom surface of the gravity wall, embedded in the surrounding rock and applied to the surrounding rock when under stress, which enhances the friction. Combined with the force in the opposite direction of the overturning moment, the design thickness of the gravity wall and the lining wall is reduced. At the same time, inclined anchor bolts are used to improve the anchoring stability.

Benefits of technology

It reduced the amount of surrounding rock excavation, saved construction costs, improved construction efficiency, and enhanced the stability and durability of the gate wall.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of water conservancy and hydropower engineering technology, and in particular to a gate wall structure and a ship lock. The gate wall structure includes a lining wall, a gravity wall, and retaining teeth. The retaining teeth are disposed on the bottom surface of the gravity wall and are used to extend into the surrounding rock. The ship lock adopts the gate wall structure described above. Through this arrangement, the design thickness of the gravity wall and the lining wall can be reduced without affecting the stability of the gate wall, thereby reducing the amount of surrounding rock excavation, saving construction costs, and improving construction efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, and in particular to a gate wall structure and a ship lock. Background Technology

[0002] The lock wall is an important component of the lock, therefore its sturdiness is crucial, as shown in the attached figure. Figure 1 As shown, existing technologies generally combine lining gate walls and gravity gate walls to obtain hybrid gate walls, thereby improving the stability of the gate wall anchored to the rock mass. In a hybrid gate wall, the lining wall is generally fixed to the surrounding rock by anchor bolts, and the gravity wall generally extends in a direction perpendicular to the surface of the lining wall, with the bottom surface of the gravity wall contacting the top surface of the surrounding rock. However, the gravity gate wall is not directly anchored to the surrounding rock, but rather maintains the stability of the overall structure through the gravity of the gravity gate wall itself and the anchoring of the lining gate wall to the surrounding rock. This leads to the need to increase the amount of excavation of the surrounding rock to accommodate thicker gravity walls and lining walls in order to improve the stability of the gate wall. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies where the lining wall in a hybrid gate wall is generally fixed to the surrounding rock by anchor bolts, and the gravity wall generally extends in a direction perpendicular to the lining wall surface, with the bottom surface of the gravity wall contacting the top surface of the surrounding rock. However, the gravity gate wall is not directly anchored to the surrounding rock, but maintains the stability of the overall structure through its own weight and the anchoring of the lining wall to the surrounding rock. This leads to the need to increase the amount of excavation of the surrounding rock to accommodate thicker gravity walls and lining walls in order to improve the stability of the gate wall. This invention provides a gate wall structure and a lock.

[0004] In a first aspect, the present invention provides a gate wall structure, including a lining wall, a gravity wall and a retaining tooth, wherein the retaining tooth is disposed on the bottom surface of the gravity wall and is used to extend into the surrounding rock.

[0005] The embedding teeth are embedded in the surrounding rock. When the gravity wall is under stress, the embedding teeth exert a force on the surrounding rock, reducing the probability of the gravity wall slipping under water pressure or soil pressure. Furthermore, when the gravity wall is subjected to an overturning moment away from the surrounding rock, the embedding teeth can exert a force on the surrounding rock in the opposite direction to the overturning moment. All of these factors can improve the stability of the gate wall, thereby reducing the design thickness of the gravity wall and lining wall without affecting the stability of the gate wall. This, in turn, reduces the amount of surrounding rock excavation, saves construction costs, and improves construction efficiency.

[0006] The locking teeth can be integrally installed on the gravity wall or fixedly connected to the gravity wall.

[0007] The cross-section of the locking tooth can be trapezoidal, rectangular, or triangular, etc.

[0008] The cross-section of the retaining tooth is a right-angled inverted trapezoid, and the inclined surface of the retaining tooth faces the lining wall.

[0009] A right-angled inverted trapezoid is a trapezoid whose base is the face containing the shorter side and whose top is the face containing the longer side. The inclined surface of the embedded tooth is the face containing the inclined side of the trapezoid.

[0010] This arrangement allows the inclined and bottom surfaces of the embedded teeth to contact the surrounding rock, increasing the contact area between the embedded teeth and the surrounding rock. This, in turn, increases the friction between the embedded teeth and the surrounding rock, reducing the likelihood of the gravity wall sliding under water or earth pressure.

[0011] The thickness of the lining wall is 4m-6m, the height of the fixing teeth is 0.4-0.6m, and the thickness of the gravity wall is 18m-20m. Preferably, the thickness of the lining wall is 5m, which can minimize the structural size and save costs while ensuring the stability of the gate wall structure; the height of the fixing teeth is 0.5m, and the thickness of the gravity wall is 19m.

[0012] The height of the locking tooth refers to the length from the top surface of the locking tooth to the bottom surface of the locking tooth.

[0013] The cross-section of the lower section of the lining wall can be a right-angled inverted trapezoid, etc. The inclined surface of the lower section of the lining wall is in contact with the surrounding rock. The lining wall is connected to the surrounding rock by anchor bolts. The angle between the projection of the anchor bolt on the cross-section of the lining wall and the horizontal plane is 5°-15°.

[0014] The lower section of the lining wall refers to the portion of the lining wall located below the bottom surface of the gravity wall. The inverted right-angled trapezoid has its base on the shorter side and its top on the longer side. The inclined surface of the lower section of the lining wall refers to the surface containing the inclined side of the trapezoid. This design ensures that the inclined and bottom surfaces of the lower section of the lining wall are in contact with the surrounding rock, increasing the contact area between the lining wall and the surrounding rock. This increases the friction between the lining wall and the surrounding rock, reducing the probability of the gate wall sliding under water or earth pressure.

[0015] By setting the angle between the projection of the anchor bolt on the cross-section of the lining wall and the horizontal plane to 5°-15°, the inclined anchor bolt can resist shear force in the horizontal direction and shear force in the vertical direction, thus improving the stability of the anchor bolt anchorage.

[0016] Preferably, the angle between the projection of the anchor bolt on the cross-section of the lining wall and the horizontal plane is 10°.

[0017] The anchor bolt includes anchor bars and anchor bar bundles, with a number of anchor bars and anchor bar bundles. The length of the anchor bars extending into the surrounding rock is 8m-9m, and the length of the anchor bar bundle extending into the surrounding rock is 12m-14m.

[0018] Shorter anchor bars enable rapid anchoring, improving construction efficiency, while longer anchor bar bundles can penetrate deeper into more stable rock strata, providing stronger anchoring force. Using both in combination can improve the anchoring effect of the lining wall at different depths, enhancing the overall structural stability and durability.

[0019] Preferably, the length of the anchor bar extending into the surrounding rock is 8.5m, and the length of the anchor bar bundle extending into the surrounding rock is 12.5m.

[0020] The spacing between two adjacent anchor bars is 1m-3m, and the spacing between two adjacent anchor bar bundles is 1m-3m.

[0021] A spacing of 1m-3m can increase the probability of uniform distribution of anchoring force between the lining wall and the surrounding rock, reduce the probability of excessively strong or weak local anchoring force, and improve the overall stability of the structure.

[0022] Preferably, the spacing between two adjacent anchor bars is 2m, and the spacing between two adjacent anchor bar bundles is 2m.

[0023] The retaining teeth are located at the end of the gravity wall away from the lining wall. The retaining teeth can also be located at any position on the gravity wall.

[0024] The retaining teeth are located at the end furthest from the lining wall, which simplifies the construction process and reduces the amount of complex formwork making and concrete pouring work.

[0025] The number of the retaining teeth can be one or several.

[0026] The stability of the gate wall can be further enhanced by setting a certain number of locking teeth.

[0027] The embedded teeth are integrally disposed on the gravity wall.

[0028] The cross-section of the locking tooth is rectangular.

[0029] In a second aspect, this utility model provides a lock that employs the aforementioned lock wall structure.

[0030] This design improves the stability and durability of the lock.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] 1. This utility model provides a gate wall structure. Through this design, the design thickness of the gravity wall and lining wall can be reduced without affecting the stability of the gate wall, thereby reducing the amount of surrounding rock excavation, saving construction costs, and improving construction efficiency.

[0033] 2. This utility model provides a lock, which improves the stability and durability of the lock. Attached Figure Description

[0034] Figure 1 This is a front view schematic diagram of the cross-section of a gate wall structure in the prior art.

[0035] Figure 2 This is a front view schematic diagram of the gate wall structure cross section of Embodiment 1 provided by this utility model.

[0036] Figure 3 This is a front view schematic diagram of the lock section of Embodiment 2 provided by this utility model.

[0037] Marked in the image:

[0038] 1- Lining wall, 2- Gravity wall, 3- Embedded tooth, 4- Anchor bolt. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Example 1

[0046] This utility model provides a gate wall structure such as Figure 2 As shown, it includes a lining wall 1, a gravity wall 2, and a retaining tooth 3. The retaining tooth 3 is disposed on the bottom surface of the gravity wall 2 and is used to extend into the surrounding rock.

[0047] The embedding teeth 3 are embedded in the surrounding rock. When the gravity wall 2 is under stress, the embedding teeth 3 exert a force on the surrounding rock, reducing the probability of the gravity wall 2 shifting under water pressure or soil pressure. Furthermore, when the gravity wall 2 is subjected to an overturning moment away from the surrounding rock, the embedding teeth 3 can exert a force on the surrounding rock in the opposite direction to the overturning moment. All of these factors can improve the stability of the gate wall, thereby reducing the design thickness of the gravity wall 2 and the lining wall 1 without affecting the stability of the gate wall. This, in turn, reduces the amount of excavation of the surrounding rock, saves construction costs, and improves construction efficiency.

[0048] The cross-section of the embedded tooth 3 is a right-angled inverted trapezoid, and the inclined surface of the embedded tooth 3 faces the lining wall 1.

[0049] A right-angled inverted trapezoid refers to a trapezoid whose short side is the base and whose long side is the top. The inclined surface of the embedded tooth 3 refers to the surface where the inclined side of the trapezoid is located.

[0050] This arrangement allows the inclined and bottom surfaces of the embedded tooth 3 to contact the surrounding rock, increasing the contact area between the embedded tooth 3 and the surrounding rock. This increases the friction between the embedded tooth 3 and the surrounding rock, reducing the probability of the gravity wall 2 sliding under water or soil pressure.

[0051] The thickness of the lining wall 1 is 5m, the height of the embedded tooth 3 is 0.5m, and the thickness of the gravity wall 2 is 19m.

[0052] The height of the locking tooth 3 refers to the length from the top surface of the locking tooth 3 to the bottom surface of the locking tooth 3. The locking tooth 3 increases the cross-sectional friction through the tooth groove interlocking mechanism, so that the gate wall structure is better connected with the surrounding rock to form an integral whole, improves the anti-sliding stability of the gate wall structure, and reduces the impact of dynamic loads such as buoyancy and earthquakes on the structural stability.

[0053] The lower section of the lining wall 1 can have a right-angled inverted trapezoid or the like. The inclined surface of the lower section of the lining wall 1 is in contact with the surrounding rock. The lining wall 1 is connected to the surrounding rock by anchor bolts 4. The angle between the projection of the anchor bolt 4 on the cross section of the lining wall 1 and the horizontal plane is 10°.

[0054] The lower section of lining wall 1 refers to the portion of lining wall 1 located below the bottom surface of gravity wall 2. The inverted right-angled trapezoid has its base on the shorter side and its top on the longer side. The inclined surface of the lower section of lining wall 1 refers to the surface containing the inclined side of the trapezoid. This design ensures that the inclined surface and bottom surface of the lower section of lining wall 1 are in contact with the surrounding rock, increasing the contact area between lining wall 1 and the surrounding rock. This increases the friction between lining wall 1 and the surrounding rock, reducing the probability of the gate wall sliding under water or earth pressure.

[0055] By setting the angle between the projection of the anchor bolt 4 on the cross-section of the lining wall 1 and the horizontal plane to 10°, the inclined anchor bolt 4 can resist the shear force in the horizontal direction and the shear force in the vertical direction, thereby improving the stability of the anchor bolt 4.

[0056] The length of the anchor bar extending into the surrounding rock is 8.5m, and the length of the anchor bar bundle extending into the surrounding rock is 12.5m.

[0057] Shorter anchor bars enable rapid anchoring and improve construction efficiency, while longer anchor bar bundles can penetrate deeper into more stable rock strata, providing stronger anchoring force. Using both in combination can improve the anchoring effect of the lining wall 1 at different depths, thereby enhancing the overall structural stability and durability.

[0058] The spacing between two adjacent anchor bars is 2m, and the spacing between two adjacent anchor bar bundles is 2m.

[0059] A 2m spacing can increase the probability of uniform distribution of anchoring force between the lining wall 1 and the surrounding rock, reduce the probability of excessively strong or weak local anchoring force, and improve the overall stability of the structure.

[0060] Preferably, the retaining tooth 3 is disposed at the end of the gravity wall 2 away from the lining wall 1. The retaining tooth 3 can also be disposed at any position of the gravity wall 2.

[0061] The embedded tooth 3 is located at the end away from the lining wall 1, which simplifies the construction process and reduces the amount of complicated formwork making and concrete pouring work.

[0062] The locking teeth 3 are integrally disposed on the gravity wall 2.

[0063] Example 2

[0064] As attached Figure 3 As shown, this embodiment provides a lock, which adopts a lock wall structure as described in Embodiment 1.

[0065] This design improves the stability and durability of the lock.

[0066] 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 gate wall structure, comprising a lining wall (1) and a gravity wall (2), characterized in that, It also includes a retaining tooth (3), which is set on the bottom surface of the gravity wall (2) and is used to extend into the surrounding rock; the lower section of the lining wall (1) has a right-angled inverted trapezoidal cross section, the inclined surface of the lower section of the lining wall (1) is in contact with the surrounding rock, the lining wall (1) is connected to the surrounding rock by an anchor bolt (4), and the angle between the projection of the anchor bolt (4) on the cross section of the lining wall (1) and the horizontal plane is 5°-15°.

2. The gate wall structure according to claim 1, characterized in that, The cross-section of the embedded tooth (3) is an inverted right-angled trapezoid, and the inclined surface of the embedded tooth (3) faces the lining wall (1).

3. The gate wall structure according to claim 1, characterized in that, The thickness of the lining wall (1) is 4m-6m, the height of the embedded tooth (3) is 0.4-0.6m, and the thickness of the gravity wall (2) is 18m-20m.

4. A gate wall structure according to claim 1, characterized in that, The anchor bolt (4) includes an anchor bar and an anchor bar bundle. The number of anchor bars and anchor bar bundles are both several. The length of the anchor bar extending into the surrounding rock is 8m-9m, and the length of the anchor bar bundle extending into the surrounding rock is 12m-14m.

5. A gate wall structure according to claim 4, characterized in that, The spacing between two adjacent anchor bars is 1m-3m, and the spacing between two adjacent anchor bar bundles is 1m-3m.

6. A gate wall structure according to any one of claims 1-5, characterized in that, The locking tooth (3) is located at the end of the gravity wall (2) away from the lining wall (1).

7. A gate wall structure according to claim 6, characterized in that, The number of the embedding teeth (3) is several, and the several embedding teeth (3) are arranged in a direction perpendicular to the lining wall (1).

8. A gate wall structure according to claim 6, characterized in that, The locking tooth (3) is integrally disposed on the gravity wall (2).

9. A ship lock, characterized in that, The gate wall structure described in any one of claims 1-8 is adopted.