Standardized system for the first section of the lock inlet

Abstract

This invention relates to a standardized system for the first section of a ship lock intake gate, comprising an intake gate wall and a gate head structure. The intake gate wall includes a maintenance gate slot (1) and a water conveyance channel (2). The gate head structure includes a gate head side pier (5) and a base plate (6). The maintenance gate slot (1) is located in the intake section. The intake section of the water conveyance channel (2) is equipped with a trash rack slot (3). The gate head side pier (5) is equipped with a gate head side pier empty box (7). This invention solves the maintenance problem of the intake gate wall, saves the amount of concrete used in the gate wall, and improves the safety and reliability of the intake gate wall during operation and maintenance. This standardized system for the first section of a ship lock intake gate provides a standardized basis for subsequent ship lock design, improves design efficiency, and lays the foundation for promoting the application of high-tech technologies such as digital twin technology, digitalization of the ship lock industry, and 3D printing.

Description

Technical Field

[0001] This invention relates to the field of ship locks, and more specifically, to a standardized system for the first section of a ship lock intake gate. Background Technology

[0002] The existing maintenance gate is located at the gate head, such as Figure 1 As shown, it is difficult to inspect and maintain the intake section gate wall. If the intake section gate wall is damaged, the cofferdam needs to be rebuilt for inspection, which not only affects navigation time but also increases maintenance costs.

[0003] The existing inlet trash rack slots are designed to be continuous, which increases the difficulty of construction and the amount of concrete used, and is not conducive to the refined design of the navigation wall structure in the inlet section. At the same time, the continuous design of the trash rack slots poses a risk of collision with ships and also increases the cost of maintenance in the later stage.

[0004] In existing technologies, for busy locks, steel linings or wear-resistant materials are only used for the lock walls above the minimum navigable water level. However, in actual lock operation, considering the draft of vessels and potential accidental collisions, the bottom elevation of the steel lining should be lower than the normal water level. Therefore, determining the bottom elevation of the steel lining is crucial for the protection of the lock structure.

[0005] The design parameters of the lock head empty box are often determined based on the designer's experience. At the same time, the layout of the lock head empty box is very complicated. Non-digital design will consume a lot of the designer's design and modification time. In addition, it is impossible to use programming to achieve rapid design of the lock head empty box, which brings certain challenges to the digitalization of the lock design industry. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a standardized system for the first section of the intake gate of a ship lock, which solves the problem of maintenance of the intake gate wall and improves the safety and reliability of the intake gate wall during operation and maintenance.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: a standardized system for the head section of a ship lock intake gate is constructed, including an intake gate wall and a head structure. The intake gate wall includes a maintenance gate slot and a water conveyance corridor. The head structure includes a head pier and a bottom plate. The maintenance gate slot is located in the intake section. The intake section of the water conveyance corridor is provided with a trash rack slot. The head pier is provided with a head pier empty box. The head pier empty boxes include a first head pier empty box, a second head pier empty box, a third head pier empty box, a fourth head pier empty box, a fifth head pier empty box, a sixth head pier empty box, a seventh head pier empty box, an eighth head pier empty box, and a ninth head pier empty box.

[0008] The top elevations of the empty boxes on the first, third, and fifth gatehead side piers are [distance from the top elevation of the gatehead]. The bottom elevations of the empty boxes on the first and third gate head piers are the elevations set by the hoist. The vertical spacing between the empty boxes is as follows: the spacing between the empty boxes on the first, second, third, fourth, fifth, sixth, and seventh gate head piers. The empty boxes on the sixth and seventh gatehead piers are the same size; the lower part is positioned with the water conveyance corridor as the reference, and the shortest distance between the bottom of the empty boxes on the second, fourth, fifth, and seventh gatehead piers and the water conveyance corridor is rounded up. The empty boxes of the eighth and ninth gate head side piers located below the water conveyance corridor are arranged in a single row along the entire length. The upper positioning is based on the bottom of the water conveyance corridor. The empty box of the ninth gate head side pier is partially set parallel and inclined to the water conveyance corridor.

[0009] In the above scheme, the distance from the outer side of the empty box of the gate head pier to the outer edge of the gate head pier is... x 1. The inner edge with the shortest width perpendicular to the lock centerline is... x 2. If the shortest width of the lock head abutment perpendicular to the lock centerline is C, then the length of the empty box of the abutment perpendicular to the lock centerline is... L 3= C - x 1- x 2; The size of the empty box of the third lock head side pier is determined by the size of the empty box required by the hoist; the spacing between the empty boxes of the first and third lock head side piers, the second and fourth lock head side piers, and the fourth and fifth lock head side piers along the lock centerline is all... x 3; The empty boxes of the fourth and fifth lockhead side piers have the same length along the lock centerline, and their sum along the lock centerline is the length of the empty box of the third lockhead side pier along the lock centerline minus x 3; The empty boxes of the first lock head side pier, the second lock head side pier, the sixth lock head side pier, and the seventh lock head side pier have the same length along the lock centerline.

[0010] In the above scheme, the base plate includes a first structural section, a second structural section, a third structural section, a fourth structural section, and a fifth structural section. The base plate is provided with a gate head base plate empty box, which includes a first gate head base plate empty box, a second gate head base plate empty box, a third gate head base plate empty box, a fourth gate head base plate empty box, a fifth gate head base plate empty box, a sixth gate head base plate empty box, a seventh gate head base plate empty box, and an eighth gate head base plate empty box.

[0011] In the above scheme, the empty boxes of the lock head bottom plate are arranged in a 4*4 pattern for locks with an effective width of 23m and 34m. The spacing between the empty boxes of the first lock head bottom plate to the eighth lock head bottom plate is... x 3. The distance between the empty box of the first gate head bottom plate and the empty box of the fifth gate head bottom plate and the upstream side of the first structural section is: x 1. Its longitudinal length L 1. The result is obtained by calculation according to the following formula:

[0012] (1)

[0013] Its horizontal width L 2 is represented as:

[0014] (2)

[0015] In the formula, A is the length of the first to fourth structural sections along the direction of water flow; B is the maximum distance between the lock centerline and the outer surface of the lock head pier on the side adjacent to the lock centerline.

[0016] In the above scheme, the empty boxes of the lock head bottom plate adopt a 2*2 arrangement for locks with effective widths of 8m, 12m, and 16m. The calculation formula for the arrangement of the empty boxes of the bottom plate is as follows:

[0017] (3)

[0018] (4)

[0019] In the formula, A is the length of the first to fourth structural sections along the direction of water flow; B is the maximum distance between the lock centerline and the outer surface of the lock head pier on the side adjacent to the lock centerline.

[0020] In the above scheme, the gate head bottom plate empty box adopts a continuous design, and the distance between the gate head bottom plate empty box and the upper and lower boundaries of the gate head bottom plate is 1 / 2. h 4. Height of empty box at the bottom of the gate head h 5 represents the height of the gate head bottom plate. h d Subtract twice the boundary distance h 4, that is h 5= h d -2 h 4.

[0021] In the above scheme, the trash rack slot is arranged outwards. The maximum top elevation should be less than the minimum navigable water level minus 1.1 times the maximum draft of the designed ship or fleet when fully loaded. Its minimum top elevation should be greater than the top elevation of the water inlet of the water conveyance system. The bottom elevation is consistent with the top elevation of the bottom plate of the gate wall of the water inlet section.

[0022] Hs < H l ≤ H h -1.1 T (1)

[0023] in: H s — Elevation of the top of the water inlet of the water conveyance system (m); H l —Elevation of the top of the trash rack slot (m); H h —Minimum navigable water level upstream (m); T —The maximum draft (m) of the designed ship or fleet when fully loaded.

[0024] In the above scheme, the trash rack slot is made by casting prefabricated steel components and the steel lining of the water conveyance corridor in one go.

[0025] In the above scheme, the water conveyance corridor is constructed using steel formwork.

[0026] The standardized system for the first section of the lock intake gate of the present invention has the following beneficial effects:

[0027] 1. The gate arrangement of this invention solves the problem of maintenance of the intake section gate wall; the design of the debris interceptor slot saves the amount of concrete used in the gate wall, proposes the principle for determining the top elevation of the debris interceptor slot, and improves the safety and reliability of the intake section gate wall during operation and maintenance.

[0028] 2. The steel plate facing design proposes principles for determining the bottom elevation of the steel plate facing; the parameterized system for the empty lock head box saves on the amount of concrete used in the lock, and the empty lock head box can be quickly arranged through programming based on this parameterized design.

[0029] 3. The standardized system of the first section of the intake gate of this ship lock provides a standardized basis for the subsequent design of the ship lock, while improving the design efficiency and laying the foundation for promoting the application of high-tech technologies such as digital twin technology, digitalization of the ship lock industry, and 3D printing. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0031] Figure 1 This is a plan view of the first section of the intake gate in the existing technology;

[0032] Figure 2 This is a schematic diagram of the intake section gate wall;

[0033] Figure 3 3D schematic diagram of the first section of the intake gate;

[0034] Figure 4This is a schematic diagram of the gate head plan;

[0035] Figure 5 This is a schematic diagram of the gate head cross-section;

[0036] Figure 6 This is a plan view of the first section of the intake gate of the present invention;

[0037] Figure 7 Elevation diagram of the trash rack slot;

[0038] Figure 8 Elevation diagram of the steel plate cladding on the gate head;

[0039] Figure 9 Cross-sectional view of the empty gate head box AA;

[0040] Figure 10 Cross-sectional view of the empty gate head box BB;

[0041] Figure 11 Cross-sectional view of the empty gate head box (CC section);

[0042] Figure 12 Cross-sectional view of the empty gate head box (DD);

[0043] In the diagram: 1. Inspection gate slot, 2. Water conveyance corridor, 3. Trash rack slot, 4. Steel plate facing, 5. Gate head side pier, 6. Gate head bottom plate, 9. Hoist, 10. Second-stage concrete for gate bottom pivot. Detailed Implementation

[0044] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0045] like Figure 2-12 As shown, the standardized system for the first section of the lock intake gate of this invention includes an intake gate wall and a gate head structure. The intake gate wall consists of two parts: a maintenance gate slot 1 section and a water conveyance corridor 2 intake section.

[0046] The gate structure eliminates the traditional maintenance gate arrangement, placing it in the maintenance gate slot 1 of the intake section gate wall. In the intake section of water conveyance corridor 2, the trash rack slot 3 is protruded outwards, increasing the lateral distance of the water conveyance corridor intake and providing more sufficient distance for the optimized lateral layout of the water conveyance corridor. Simultaneously, water conveyance corridor 2 is constructed directly using steel formwork. After construction, the steel formwork is not removed and serves as the steel cladding of the water conveyance corridor to prevent water flow erosion. The protruding trash rack slot 3 is constructed using precast steel components, cast in one piece with the steel cladding of the water conveyance corridor, facilitating construction.

[0047] The protruding elevation of the trash rack slot 3 is as follows: The maximum top elevation should be less than the minimum navigable water level minus 1.1 times the maximum draft of the designed vessel or fleet when fully loaded. The minimum top elevation should be greater than the top elevation of the water intake of the water conveyance system, and the bottom elevation should be consistent with the top elevation of the bottom plate of the intake section gate wall. This ensures that the trash rack slot will not come into contact with vessels, and because its elevation is greater than the top elevation of the water conveyance system, it can effectively intercept pollutants entering the water conveyance channel. Furthermore, the trash rack slot is relatively weak; in the event of a vessel collision, the upper slot structure may be damaged. The optimized layout can avoid the probability of structural damage caused by collisions between passing vessels and the intake section navigation wall, and also facilitates the construction of protective structures such as steel plate facing.

[0048] For lock head structures, the steel plate revetment 4 of Class I, II, and III locks should be 1 m below the minimum design navigation water level. For Class IV, V, and VI locks, it is recommended that the steel plate revetment be 0.5 m below the minimum design navigation water level. The top elevation of the steel plate revetment 4 should be level with the top elevation of the hydraulic structure.

[0049] The lock head structure features parametric design for the lock head side piers and bottom plate empty boxes, enabling rapid layout of these empty boxes using programming languages, saving designers time. This also lays the foundation for the application of new technologies such as parametric modeling of complex lock head structures using Dynamo and 3D printing in lock head BIM. To reduce concrete volume, a series of empty boxes were incorporated into the lock head side piers 5 and bottom plate 6, and a parametric design system was proposed for the layout of these empty boxes.

[0050] The gate head side pier 5 is equipped with a gate head side pier empty box, which includes a first gate head side pier empty box 701, a second gate head side pier empty box 702, a third gate head side pier empty box 703, a fourth gate head side pier empty box 704, a fifth gate head side pier empty box 705, a sixth gate head side pier empty box 706, a seventh gate head side pier empty box 707, an eighth gate head side pier empty box 708, and a ninth gate head side pier empty box 709.

[0051] The empty boxes on the gate head piers are arranged in a single row along the water flow direction, while those above water conveyance corridor 2 are arranged in a vertical double row. The top elevations of the first gate head pier empty box 701, the third gate head pier empty box 703, and the fifth gate head pier empty box 705 are [distance from the top elevation of the gate head]. The bottom elevations of the empty boxes 701 and 703 on the first and third gate head piers are the same as the elevation set by the hoist 9. The vertical spacing between the empty boxes is as follows: the spacing between the empty boxes 701 and 702, the spacing between the empty boxes 703 and 704, the spacing between the empty boxes 705 and 706, and the spacing between the empty boxes 707 on the first and third gate head piers. For large lock structures, a length of 1m is recommended. The empty boxes 706 and 707 of the sixth and seventh lockhead side piers are the same size. The lower part is positioned using the water conveyance channel 2 as a reference. The shortest distance between the bottom of the empty boxes 702, 704, 705, and 707 of the second, fourth, fifth, and seventh lockhead side piers and the water conveyance channel is rounded down. The empty boxes 708 and 709 of the eighth gate head side pier, located below the water conveyance corridor 2, are arranged in a single row along the entire length. The upper positioning is based on the bottom of the water conveyance corridor 2. The empty box 709 of the ninth gate head side pier is partially set parallel and inclined to the water conveyance corridor.

[0052] The outer edge of the empty box of the gate head pier is 5 meters away from the outer edge of the gate head pier. x 1m, the shortest width of the inner edge of the lock, perpendicular to the lock centerline, is on the side adjacent to the lock centerline. x 2m, the shortest width of the lock head side pier 5 perpendicular to the lock centerline is C, then the length of the empty box of the side pier perpendicular to the lock centerline is... L 3= C - x 1- x 2. The dimensions of the empty box 703 on the third lock head side pier are determined by the required size of the empty box for the hoist 9; the spacing between the empty boxes 701 and 703 on the first lock head side pier, 702 and 704 on the second lock head side pier, and 704 and 705 on the fourth lock head side pier, along the lock centerline, is [missing information]. x 3; The empty box 704 of the fourth lock head pier and the empty box 705 of the fifth lock head pier have the same length along the lock centerline. The sum of their lengths along the lock centerline is the length of the empty box 703 of the third lock head pier along the lock centerline minus x 3; Because the second-stage concrete 10 for the bottom pivot of the gate is set in the side pier for placing the gate bottom pivot embedded parts, the spacing between the empty box 703 of the third gate head side pier and the empty box 706 of the sixth gate head side pier needs to take into account the influence of the second-stage concrete 10 for the gate bottom pivot. In this design, the empty box 703 of the third gate head side pier and the empty box 706 of the sixth gate head side pier are both located at a distance of [distance] from the second-stage concrete 10 for the gate bottom pivot in the direction of the lock centerline. x 4 ≥ 0.2m; the empty boxes 701, 702, 706, and 707 of the first and second lockhead side piers have the same length along the lock centerline. For large-scale lockhead structures with backfill behind the side pier walls, the following recommended values ​​are given: x 1. It is recommended to take 2 m. x 2. It is recommended to take 1.5 m.

[0053] The empty boxes 708 and 709 on the eighth and ninth gate piers below the water conveyance corridor 2 are arranged in a single row along the entire length. The upper positioning is based on the bottom of the water conveyance corridor 2, and the shortest distance between the top of the empty box 708 and the bottom of the water conveyance corridor 2 is rounded up. The bottom elevation of the empty box 708 on the eighth gate head pier and the empty box 709 on the ninth gate head pier are 5 units away from the bottom of the gate head pier. h 4. To reduce the amount of concrete used, the empty box 709 of the ninth gate head side pier can be partially tilted parallel to the water conveyance corridor.

[0054] For ease of construction, the design dimension of the lock head bottom plate structural section along the lock centerline is precisely 0.1 m, that is, the main dimensions of the five structural sections 01 to 05 of the lock head bottom plate are all precisely positioned at 0.1 m. The bottom plate 6 includes a first structural section 601, a second structural section 602, a third structural section 603, a fourth structural section 604, and a fifth structural section 605. The bottom plate 6 is equipped with lock head bottom plate empty boxes, which include a first lock head bottom plate empty box 801, a second lock head bottom plate empty box 802, a third lock head bottom plate empty box 803, a fourth lock head bottom plate empty box 804, a fifth lock head bottom plate empty box 805, a sixth lock head bottom plate empty box 806, a seventh lock head bottom plate empty box 807, and an eighth lock head bottom plate empty box 808.

[0055] For lockhead bottom plate empty boxes, a 4x4 arrangement scheme is adopted for locks with an effective width of 23m and 34m. Since the lockhead empty boxes are arranged symmetrically, a typical length calculation formula for the lockhead bottom plate empty boxes is given here, using a semi-structure as an example. The spacing between the first lockhead bottom plate empty box 801 to the eighth lockhead bottom plate empty box 808 is calculated using... x The distance between the empty box 801 and the empty box 805 of the first gate head bottom plate and the upstream side of the first structural section 601 is 3m. x If the length is 1m, then its longitudinal length is... L 1 can be calculated using the following formula:

[0056] (1)

[0057] Its horizontal width L 2 can be represented as:

[0058] (2)

[0059] In the formula, A is the length of the first structural section 601 to the fourth structural section 604 along the direction of water flow; B is the maximum distance between the lock centerline and the outer surface of the lock head pier 5 on the side adjacent to the lock centerline.

[0060] For locks with effective widths of 8m, 12m, and 16m, a 2*2 bottom plate empty box layout scheme can be adopted, and the calculation formula is as follows:

[0061] (3)

[0062] (4)

[0063] In the formula, A is the length of the first structural segment 601 to the fourth structural segment 604 along the direction of water flow; B is the maximum distance between the center line of the lock and the outer surface of the lock head pier 5 on the water flow side.

[0064] For ease of construction, the empty boxes 801 to 808 of the first gate head bottom plate are designed to be continuous, and the distance between the empty boxes and the upper and lower boundaries of the gate head bottom plate 6 is [missing information]. h If the empty box height is 4m, then the height of the gate head bottom plate is 6m. h d Subtract twice the boundary distance h 4, that is h 5= h d -2 h 4. Therefore, the three-dimensional layout dimensions of the empty bottom plate can be accurately determined.

[0065] The empty boxes for the lock head side piers and the empty boxes for the lock head bottom plate are arranged separately to avoid interference. Furthermore, except for the top, all four sides are chamfered with a 0.4*0.4 m bevel to ensure uniform stress distribution between the empty boxes for the lock head side piers and the empty boxes for the lock head bottom plate. Additionally, when the inner dimensions of the lock head side pier 5 change, the minimum distance between the first lock head bottom plate empty box 801 to the fourth lock head bottom plate empty box 804 and the inner edge of the lock head side pier 5, i.e., the side adjacent to the lock centerline, is [missing information]. x 3.

[0066] Regarding the proposed method for arranging empty boxes on the gate head base plate, verification was conducted by referring to real engineering cases. x 3 = 1.5 m x 4 = 2.0 m. The reference values ​​for the planar dimensions of the empty box at the bottom plate of the lock head under the effective width of each lock are given in Table 1.

[0067] Table 1: Reference Table for Empty Box Dimensions (Unit: m)

[0068]

[0069] As can be seen from the above embodiments, this empty box design system adopts a symmetrical design along the center line of the lock, fully considers the arrangement of the embedded parts of the lock head gate and the stress characteristics of the lock head, and has high feasibility and practicality. At the same time, it realizes the full parameterization design of the lock head side pier and bottom plate empty box.

[0070] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A standardized system for the head section of a ship lock intake, comprising an intake section gate wall and a head structure, wherein the intake section gate wall includes a maintenance gate slot (1) and a water conveyance corridor (2), and the head structure includes a head side pier (5) and a bottom plate (6), characterized in that, The maintenance gate slot (1) is set in the water intake section, the water intake section of the water conveyance corridor (2) is provided with a trash rack slot (3), and the gate head side pier (5) is provided with a gate head side pier empty box. The gate head side pier empty box includes a first gate head side pier empty box (701), a second gate head side pier empty box (702), a third gate head side pier empty box (703), a fourth gate head side pier empty box (704), a fifth gate head side pier empty box (705), a sixth gate head side pier empty box (706), a seventh gate head side pier empty box (707), an eighth gate head side pier empty box (708), and a ninth gate head side pier empty box (709). The top elevations of the empty boxes on the first, third, and fifth gate head piers (701, 703, and 705) are relative to the top elevation of the gate head. The bottom elevation of the empty boxes on the first and third gate piers (701 and 703) is the elevation set by the hoist (9). The vertical spacing between the empty boxes is as follows: the spacing between the empty boxes on the first and second gate piers (702), the empty boxes on the third and fourth gate piers (704), the empty boxes on the fifth and sixth gate piers (706), and the empty boxes on the seventh gate pier (707). The sixth gate head side pier empty box (706) and the seventh gate head side pier empty box (707) are the same size; the lower part is positioned with the water conveyance corridor (2) as the reference, and the shortest distance between the bottom of the second gate head side pier empty box (702), the fourth gate head side pier empty box (704), the fifth gate head side pier empty box (705), and the seventh gate head side pier empty box (707) and the water conveyance corridor is rounded up. The empty boxes (708) of the eighth gate head side pier and the empty boxes (709) of the ninth gate head side pier located below the water conveyance corridor (2) are arranged in a single row along the entire length. The upper positioning is based on the bottom of the water conveyance corridor (2). The empty box (709) of the ninth gate head side pier is partially set parallel to the water conveyance corridor and inclined. The base plate (6) includes a first structural section (601), a second structural section (602), a third structural section (603), a fourth structural section (604), and a fifth structural section (605). The base plate (6) is provided with a gate head base plate empty box, which includes a first gate head base plate empty box (801), a second gate head base plate empty box (802), a third gate head base plate empty box (803), a fourth gate head base plate empty box (804), a fifth gate head base plate empty box (805), a sixth gate head base plate empty box (806), a seventh gate head base plate empty box (807), and an eighth gate head base plate empty box (808). The empty boxes on the lock head bottom plate are arranged in a 4*4 configuration for locks with an effective width of 23m and 34m. The spacing between the first lock head bottom plate empty box (801) to the eighth lock head bottom plate empty box (808) is... x 3. The distance between the empty box of the first gate head bottom plate (801) and the empty box of the fifth gate head bottom plate (805) and the upstream side of the first structural section (601) is: x 1. Its longitudinal length L 1. The result is obtained by calculation according to the following formula: （1） Its horizontal width L 2 is represented as: （2） In the formula, A is the length of the first structural section (601) to the fourth structural section (604) along the direction of water flow; B is the maximum distance between the lock centerline and the outer surface of the lock head pier (5) on the side adjacent to the lock centerline. For locks with effective widths of 8m, 12m, and 16m, the empty boxes on the lock head are arranged in a 2*2 configuration. The calculation formula for the empty box arrangement is as follows: （3） （4） In the formula, A is the length of the first structural segment (601) to the fourth structural segment (604) along the direction of water flow; B is the maximum distance between the lock centerline and the outer surface of the lock head pier (5) on the side of the lock centerline.

2. The standardized system for the first section of the lock intake gate according to claim 1, characterized in that, The distance from the outer edge of the empty box of the gate head pier (5) is the same as the distance from the outer edge of the gate head pier (5). x 1. The inner edge with the shortest width perpendicular to the lock centerline is... x 2. The shortest width of the lock head side pier (5) perpendicular to the lock centerline is C. Then the length of the side pier empty box perpendicular to the lock centerline is... L 3= C - x 1- x 2; The size of the empty box (703) of the third lock head side pier is determined by the size of the empty box required by the hoist (9); The spacing between the empty boxes (701) and the empty boxes (703) of the first lock head side pier, the empty boxes (702) and the empty boxes (704) of the second lock head side pier, and the empty boxes (704) and the empty boxes (705) of the fourth lock head side pier along the lock centerline is 1. x 3; The empty box (704) of the fourth lock head side pier and the empty box (705) of the fifth lock head side pier have the same length along the lock centerline. The sum of their lengths along the lock centerline is the length of the empty box (703) of the third lock head side pier (703) along the lock centerline minus x 3; The empty box of the first lock head side pier (701), the empty box of the second lock head side pier (702), the empty box of the sixth lock head side pier (706), and the empty box of the seventh lock head side pier (707) have the same length along the lock centerline.

3. The standardized system for the first section of the lock intake gate according to claim 1, characterized in that, The empty box of the gate head bottom plate adopts a continuous design, and the distance between the empty box of the gate head bottom plate and the upper and lower boundaries of the gate head bottom plate (6) is 1. h 4. Height of empty box at the bottom of the gate head h 5 represents the height of the gate head bottom plate (6). h d Subtract twice the boundary distance h 4, that is h 5= h d -2 h 4.

4. The standardized system for the first section of the lock intake gate according to claim 1, characterized in that, The trash rack slot (3) is arranged outward. The maximum top elevation of the trash rack slot (3) should be less than the minimum navigable water level minus 1.1 times the maximum draft of the designed ship or fleet when fully loaded. Its minimum top elevation should be greater than the top elevation of the water inlet of the water conveyance system. The bottom elevation is consistent with the top elevation of the bottom plate of the gate wall of the water inlet section.

5. The standardized system for the first section of the lock intake gate according to claim 1, characterized in that, The trash rack slot (3) is made of precast steel components and the steel lining of the water conveyance corridor, and is cast in one go.

6. The standardized system for the first section of the lock intake gate according to claim 1, characterized in that, The water conveyance corridor (2) is constructed using steel facing as a formwork.

7. The standardized system for the first section of the lock intake gate according to claim 1, characterized in that, For Class I, II, and III locks, the steel plate revetment should be 1 m below the minimum design navigation water level. For Class IV, V, and VI locks, it is recommended that the steel plate revetment be 0.5 m below the minimum design navigation water level. The top elevation of the steel plate revetment should be level with the top elevation of the hydraulic structure.

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