Cooperative deformation control device for ship lock composite water stop structure and multidirectional coupling loading test system

Abstract

The invention discloses a cooperative deformation control device for a ship lock composite water stop structure and a multidirectional coupling loading test system. The cooperative deformation control device is characterized in that a ship lock chamber structure comprising two connected structural sections is constructed; a composite water stop structure is arranged in a structural parting seam between the structural sections of the ship lock; therefore, the ship lock structure with the cooperative deformation control function is formed through connection. A ship lock chamber structure physical model is provided, a multi-working-condition loading technology and a separation test technology are carried out on the model to verify the stress deformation rule of the water stop structure, and the problems that the design of the ship lock water stop structure lacks scientific basis, the performance of a water stop material is insufficient, and test verification means are limited are effectively solved; scientific basis is provided for optimal design and construction practice of the ship lock water stop structure, and the ship lock water stop structure has important engineering application value.

Description

Technical Field

[0001] The present invention relates to the technical field of ship lock structure design, in particular to a ship lock composite water-stop structure coordinated deformation control device and a multi-directional coupling loading test system. Background Art

[0002] Existing ship lock waterstop structures generally use a single material (such as rubber or metal) or a simple laminated design, which has serious defects in three-dimensional deformation adaptability. Under complex working conditions (such as uneven settlement, bending stress and longitudinal stretching), traditional materials are prone to tearing, dislocation or aging failure due to anisotropy. In addition, the collaborative deformation capacity between concrete and waterstop materials is insufficient, and micron-level gaps are easily generated at the joints, causing leakage. In addition, existing research often focuses on the independent analysis of a single working condition and lacks systematic verification of the multi-directional stress coupling effect, making it difficult to guide structural optimization design in engineering practice.

[0003] Traditional ship lock chamber bottom plate test equipment can only simulate a single working condition (such as settlement or stretching) and cannot replicate the actual multi-field coupling effects on site (such as the combined effects of settlement-bending-stretching). The existing displacement control accuracy is insufficient to meet the high-precision monitoring requirements of the changes in the width of the lock chamber bottom plate, and there is a lack of real-time coordinated control of the loading parameters and monitoring data, resulting in significant deviations between the test results and the actual working conditions. Such technical shortcomings seriously restrict the accuracy of the durability verification of new water-stop structures. Under the current technological system, the design and test verification of water-stop structures have the dual bottlenecks of "material performance limitations" and "backward loading methods": on the one hand, the material cannot adapt to the requirements of multi-directional deformation; on the other hand, the test equipment cannot accurately simulate complex stress environments.

[0004] Therefore, there is a need for a control device and a test system for a ship lock water-stop structure that can break through the limitations of "single material-single parameter loading" in traditional technology. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a collaborative deformation control device for a composite water-stop structure of a ship lock and a multi-directional coupling loading test system, which can achieve reliable sealing under complex stress conditions through material combination optimization and structural design innovation, and establish corresponding physical model test methods to verify its performance, while providing a precise test platform for durability verification of the new water-stop structure.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The ship lock composite water-stop structure cooperative deformation control device provided by the present invention comprises at least a ship lock structure section I and a ship lock structure section II; the ship lock structure section I and the ship lock structure section II are connected to form a ship lock chamber structure;

[0008] A composite water-stop structure is provided in the structural joint between the ship lock structure section I and the ship lock structure section II;

[0009] The composite water-stop structure is used to connect the lock structure section I and the lock structure section II to form a lock chamber structure with coordinated deformation control.

[0010] Furthermore, the composite water-stop structure comprises a sealing outer layer, a water-stop middle layer, and a connecting inner layer;

[0011] The sealing outer layer is made of elastic material and has the function of absorbing high-frequency vibrations;

[0012] The middle layer of the water stop is an elastic water stop used to bear the load;

[0013] The inner connection layer is made of elastic material and is used as a connector for the anchoring structure.

[0014] Furthermore, the ship lock structure section I includes at least two lock walls, and the ship lock structure section II includes at least two lock walls;

[0015] A composite water-stop structure of the lock wall is provided in the structural joint between the lock structure section I and the lock structure section II on the same side of the lock wall;

[0016] The gate wall composite water-stop structure comprises a gate wall outer layer, a gate wall middle layer, and a gate wall inner layer;

[0017] The outer layer of the gate wall is made of elastic sealing material and has the function of absorbing high-frequency vibrations;

[0018] The middle layer of the gate wall is an elastic waterstop used to bear the load;

[0019] The inner layer of the gate wall is made of elastic material and is used as a connector for the anchoring structure.

[0020] Furthermore, the ship lock structure section I includes at least one lock chamber bottom plate, and the ship lock structure section II includes at least one lock chamber bottom plate; the lock chamber bottom plate is correspondingly connected to the lock wall;

[0021] A bottom plate composite water-stopping structure is provided in the structural joints between the bottom plates of the lock chambers, and the bottom plate composite water-stopping structure comprises a bottom plate outer layer, a bottom plate middle layer, and a bottom plate inner layer;

[0022] The outer layer of the bottom plate is made of elastic sealing material and has the function of absorbing high-frequency vibrations;

[0023] The middle layer of the bottom plate is an elastic waterstop used to bear the load;

[0024] The inner layer of the bottom plate is made of elastic material and is used as a connector for the anchoring structure.

[0025] Furthermore, the lock chamber structure is a separate lock chamber structure; the lock wall and lock chamber bottom plate in the lock structure section I and the lock structure section II are manufactured by separate casting construction.

[0026] Furthermore, the material of the composite water-stopping structure includes any one or more of polyurethane, silicone rubber, and rubber materials.

[0027] Furthermore, the elastic material is arranged according to a modulus gradient, specifically as follows:

[0028] The outer layer has a low modulus value range of 0.5 to 1.5 MPa, the middle layer has a high modulus value range of 1.5 to 5.0 MPa, and the inner layer has a high modulus value range of 5.0 to 10.0 MPa.

[0029] The multi-directional coupling loading test system provided by the present invention, which is carried out using a coordinated deformation control device for a composite water-stop structure of a ship lock, comprises a loading module, a data acquisition module, a control and analysis module, and a support structure;

[0030] The loading module is used to control the hydraulic actuator group and apply a force on the target object to be tested;

[0031] The data acquisition module is used to collect deformation signals of the target to be tested;

[0032] The control and analysis module is used to control the loading module and the data acquisition module;

[0033] The support structure is used to install the target object to be tested and the loading module.

[0034] Furthermore, the hydraulic actuator group is arranged on the reaction frame to apply force to the gate chamber bottom plate model; the multi-channel A / D converter in the data acquisition module is started through the control and analysis module to collect the joint width, waterstop deformation and stress signals of the composite waterstop structure in the structural joint.

[0035] The beneficial effects of the present invention are:

[0036] The present invention provides a collaborative deformation control device for a composite water-stop structure of a ship lock and a multi-directional coupling loading test system. By constructing a physical model and performing multi-condition loading technology and separation test technology on the model to verify the stress and deformation law of the water-stop structure, the present invention effectively solves the problems of lack of scientific basis for the design of the water-stop structure of the ship lock, insufficient performance of the water-stop material and limited test verification means, etc., and provides a scientific basis for the optimized design and construction practice of the water-stop structure of the ship lock, and has important engineering application value.

[0037] The present invention provides a scaled-down physical model of the lock waterstop structure and designs various test conditions, such as uneven settlement, bending stress, and tensile stress. By testing the physical model, it is possible to deeply study the stress-deformation patterns of the waterstop structure under different operating conditions, providing a scientific basis for the optimized design of the waterstop structure. Furthermore, it is possible to explore the applicability of different waterstop materials in the waterstop structure, resulting in a waterstop structure with improved aging resistance, durability, and sealing, effectively improving the reliability and service life of the waterstop structure.

[0038] The composite waterstop structure of this technical solution solves the failure problem of traditional waterstop structures under multi-directional deformation through material combination optimization and three-dimensional collaborative design. The multi-field coupled loading system compensates for the loading and monitoring shortcomings of existing test equipment through high-precision displacement control and real-time multi-parameter coordination. The combination of the two forms a "material-test" closed loop, providing a theoretical basis and technical support for the engineering application of lock waterstop structures. It breaks through the limitations of "single material-single parameter loading" in traditional technology and achieves a technological leap from "static empirical design" to "dynamic multi-condition verification." It provides a new methodology for the scientific and refined design of lock waterstop structures, with significant economic benefits and engineering promotion value.

[0039] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration.

[0041] Figure 1 This is a schematic diagram of the lock chamber structure.

[0042] Figure 2 This is a scaled three-dimensional image (1:20) of the lock chamber floor.

[0043] Figure 3 This is a partial view of the joint in the bottom plate structure of the ship lock chamber.

[0044] Figure 4 Side view of the uneven settlement experiment of the lock chamber bottom plate.

[0045] Figure 5 This is a three-dimensional diagram of the uneven settlement experiment of the lock chamber bottom plate.

[0046] Figure 6 This is the side view of the bending stress of the lock chamber bottom plate.

[0047] Figure 7 This is a three-dimensional diagram of the bending stress of the lock chamber bottom plate.

[0048] Figure 8 This is the side view of the tensile stress of the lock chamber bottom plate.

[0049] Figure 9 This is a three-dimensional diagram of the tensile stress of the lock chamber bottom plate.

[0050] Figure 10 This is a scaled-down stereoscopic image of the lock wall (1:20).

[0051] Figure 11 This is a three-dimensional diagram of the uneven settlement of the gate wall structure joints.

[0052] Figure 12 This is a three-dimensional diagram of the bending stress in the joints of the gate wall structure.

[0053] Figure 13 This is a three-dimensional diagram of the tensile stress in the joints of the gate wall structure.

[0054] Figure 14 This is the test effect diagram of working condition 1.

[0055] Figure 15 This is the test effect diagram of working condition 2.

[0056] Figure 16 This is the test effect diagram of working condition 3.

[0057] In the figure, 1 represents the ship lock structure section I; 2 represents the ship lock structure section II; 3 represents the structural joint; 4 represents the lock chamber bottom plate; 5 represents the lock wall; 6 represents the composite water-stop structure; 6-1 represents the sealing outer layer; 6-2 represents the water-stop middle layer; 6-3 represents the connecting inner layer; 7 represents the 10-ton actuator; 8 represents the lock chamber bottom plate sample; 9 represents the composite water-stop structure sample; and 10 represents the lock wall sample. DETAILED DESCRIPTION

[0058] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0059] Example 1

[0060] like Figure 1 As shown, Figure 1 Schematic diagram of the structure of a ship lock composite water-stop structure coordinated deformation control device. The ship lock composite water-stop structure coordinated deformation control device provided in this embodiment includes at least a ship lock structure segment I and a ship lock structure segment II. The ship lock structure segment I and the ship lock structure segment II are connected to form a ship lock chamber structure.

[0061] The ship lock structure section I includes a lock wall and a lock chamber bottom plate;

[0062] The ship lock structure section II includes a lock wall and a lock chamber bottom plate;

[0063] A composite water-stop structure is provided in the structural joint between the ship lock structure section I and the ship lock structure section II;

[0064] The composite water-stop structure is used to connect the lock structure section I and the lock structure section II to form a lock structure with coordinated deformation control;

[0065] The composite water-stop structure comprises a sealing outer layer, a water-stop middle layer, and a connecting inner layer;

[0066] The sealing outer layer is made of elastic sealing material and has the function of absorbing high-frequency vibrations;

[0067] The middle layer of the water stop is an elastic water stop used to bear the load;

[0068] The inner connecting layer is made of elastic material and is used as a connector for the anchoring structure;

[0069] The ship lock structure section I comprises at least two lock walls and a lock chamber bottom plate;

[0070] The ship lock structure section II comprises at least two lock walls and a lock chamber bottom plate;

[0071] A composite water-stop structure is provided in the structural joint between the adjacent lock walls of the lock structure section I and the lock structure section II;

[0072] A composite water-stop structure is provided in the structural joint between the bottom plates of adjacent lock chambers of the lock structure section I and the lock structure section II;

[0073] The lock chamber bottom plate is correspondingly connected to the lock wall;

[0074] The effect of the cooperative deformation control of this embodiment can be verified by the coordination mechanism of multi-directional loading:

[0075] The hardware configuration includes: ① Three-axis linkage hydraulic actuator assembly: connected by a high-rigidity reaction frame, ensuring the synchronization of Z-axis (settling), Y-axis (bending), and X-axis (tension) loading. ② Servo valve dynamic response: A high-frequency servo valve is used to achieve rapid switching and superposition of multi-directional loads.

[0076] Control settings include: ① Master-slave control mode: A specific direction (e.g., Z-axis settlement) is used as the primary loading direction, while the remaining directions (Y / X) are used as slave compensation directions, dynamically correcting coupled deformation errors. ② Force / displacement hybrid control: Automatically switches control strategies based on the test phase (e.g., displacement control is primary in the initial phase, with force control added later).

[0077] Real-time feedback and dynamic adjustment process:

[0078] ① Multi-dimensional deformation monitoring: FBG fiber optic sensors and laser displacement sensors provide real-time feedback of three-dimensional deformation data.

[0079] ②Strain synchronous acquisition: strain gauge and FBG data are integrated to dynamically adjust loading parameters.

[0080] The lock chamber structure in this embodiment can adopt a symmetrical structure or an asymmetrical structure according to actual conditions; the lock chamber structure is a scaled model;

[0081] The lock chamber structure in this embodiment is a separate lock chamber structure; the lock wall and the lock chamber bottom plate in the lock structure section I and the lock structure section II are cast separately;

[0082] The water-stop structure in this embodiment (such as a rubber water-stop or a metal water-stop plate) is designed directly for the structural gaps and is used to fill the joints between two adjacent structural sections to prevent water leakage. Its function and position are clearly related to the longitudinal gap of the gate chamber.

[0083] In ship lock projects, settlement joints or expansion joints usually exist at the junction of the lock wall (vertical structure) and the lock chamber floor (horizontal structure). The main reasons are as follows:

[0084] Difference in foundation deformation: The foundation stiffness of the lock chamber bottom plate and the lock wall is different, which may cause uneven settlement under long-term load.

[0085] Influence of temperature stress: Thermal expansion and contraction of concrete materials cause the structure to expand and contract.

[0086] Construction joint requirements: Gaps must be reserved between the gate chamber bottom plate and gate wall cast in sections.

[0087] If such gaps exist, a water-stopping device (such as a horizontal water-stop strip or a water-stop steel plate) needs to be installed in the gap to form an omnidirectional sealing system with the water-stopping system of the longitudinal gap; a composite water-stopping structure is formed, so that each part can deform synergistically, overcoming the difficulty of traditional water-stopping solutions in meeting the requirements of multi-directional deformation at the same time.

[0088] In order to overcome problems such as uneven settlement and temperature stress, the ship lock structure in this embodiment is usually constructed by casting the lock wall, lock chamber bottom plate, etc. in blocks and sections according to certain lengths during the design and construction process, and reserving a structural joint between two adjacent structural sections.

[0089] The physical model of the lock water-stop structure provided in this embodiment is mainly used to conduct optimization design tests on the lock water-stop structure, provide a scientific basis for the construction practice of the lock water-stop structure, reduce engineering risks and improve long-term stability. Through the physical model of the lock water-stop structure, new water-stop structure types are explored, high-performance materials are developed, and structural sealing is optimized. Design defects can be accurately located through scaled models and separation tests. At the same time, different actual working conditions can be simulated for test verification, and multi-condition loading technology can be used to cover complex stress scenarios, and to finely simulate key working conditions such as settlement and bending to improve the applicability of the project.

[0090] The lock chamber structure provided in this embodiment can be based on the actual size of a canal lock structure, and a physical model of the lock water-stop structure can be constructed according to a certain scale ratio to explore the applicability of a new type of water-stop structure based on high-performance water-stop materials, and study the stress and deformation laws of the lock water-stop structure under different test conditions.

[0091] The materials in the composite water-stop structure of this embodiment include polyurethane, silicone rubber, and a water-stop made of rubber;

[0092] Among them, polyurethane and silicone rubber are both elastic sealing materials; they are highly flexible: the tensile strength of polyurethane material is ≥8MPa, and the temperature resistance range of silicone rubber is -50℃~200℃, which can adapt to the high-frequency vibration and long-term thermal expansion and contraction deformation of the gate; at the same time, they have the ability to compensate for micro-deformation: through the molecular chain relaxation mechanism, the sealing performance is kept stable within the compression / stretching range of ±5%, filling the micron-level gaps (such as the seam deformation caused by 0.1mm-level settlement).

[0093] Among them, the waterstop is made of high-performance rubber (OMEGA / GB series), which has high strength and durability. The OMEGA rubber waterstop is modified with chloroprene rubber (CR) and has a tear strength of ≥35kN / m; the GB rubber waterstop is based on ethylene propylene diene monomer rubber (EPDM) and has an ozone aging resistance level of 9; structural support function: under long-term load (such as 30mm settlement), it limits excessive compression of elastic materials to avoid sealing failure.

[0094] The composite waterstop structure in this embodiment utilizes a layered, nested sealing system with a collaborative working mechanism. Specifically, the outer layer is a polyurethane sealing layer (2mm thick) that absorbs high-frequency vibrations and minor deformations; the middle layer is an OMEGA rubber waterstop (5mm thick) that bears the primary compression and tension loads; and the inner layer is a GB rubber connector (3mm thick) that is anchored to the concrete structure, transfers loads, and prevents dislocation. The interfaces between the layers can deform collaboratively.

[0095] This embodiment achieves gradient transmission of isotropic deformation by setting a modulus gradient of the elastic material, thereby avoiding stress concentration.

[0096] The elastic material is arranged according to a modulus gradient, specifically as follows:

[0097] Stratum Modulus range Features Outer layer 0.5~1.5MPa Flexible buffer layer to absorb external impact energy Middle level 1.5~5.0MPa Stress diffusion layer to inhibit crack propagation Inner layer 5.0~10.0MPa High-rigidity load-bearing layer to resist core deformation

[0098] The composite waterstop structure in this embodiment is a structural seal with a dynamic sealing mechanism, achieved through multi-directional deformation compensation. Flexible deformation is employed in the X / Y directions: the polyurethane outer layer maintains sealing within a ±15% deformation range. Rigid support is employed in the Z direction: the OMEGA rubber waterstop is embedded in the steel mesh through a vulcanization process, limiting Z-direction compression and preventing structural collapse due to settlement. Here, X / Y denotes directions perpendicular to the horizontal plane, and Z denotes the vertical direction, perpendicular to the horizontal plane.

[0099] This embodiment achieves full life cycle sealing performance guarantee of the lock water-stop structure under complex stresses through optimization of the rubber material combination and innovation of the dynamic sealing mechanism, providing an economical and reliable solution for lock projects under high water pressure and large deformation conditions.

[0100] In this embodiment, based on the symmetry of the ship lock chamber, half of the lock chamber structure is used to make a scaled model (1:20). The lock chamber bottom plate structure in this embodiment adopts a separate structure, and the lock wall and the lock chamber bottom plate are cast and constructed separately. Therefore, the test conditions of the lock wall and the lock chamber bottom plate are considered separately. Figure 2 This is a scaled three-dimensional view (1:20) of the ship lock chamber bottom plate. The bottom plate structural joint is formed by connecting the lock chamber bottom plate I and the lock chamber bottom plate II.

[0101] Figure 3 This is a partial view of the structural joint of the lock chamber bottom plate. The waterstop of this embodiment can be set according to actual conditions. It can be set between the middle parts of the lock chamber bottom plate or other positions; or it can be set at the bottom of the lock chamber bottom plate; according to conventional water conservancy project design and construction specifications (such as "Waterstop Design Specifications for Hydraulic Structures" SL / T 265-2015), the setting position of the waterstop can be set according to structural deformation, load distribution and leakage risk, and the waterstop can be set according to different positions of the lock chamber bottom plate.

[0102] The middle of the gate chamber floor usually corresponds to the horizontal displacement trajectory when the gate is opened and closed, and is also a sensitive area for settlement and deformation. The waterstop here can play a role in the following ways:

[0103] Adapt to longitudinal deformation: compensate for X-axis expansion and contraction deformation caused by gate opening and closing;

[0104] Coordinated settlement control: Limiting Z-direction misalignment caused by differential settlement.

[0105] For the bottom of the chamber floor, if there is significant vertical uneven settlement or a localized weak area in the floor (e.g., a soft foundation), a waterstop can be added to the bottom to enhance the sealing performance. This directly blocks groundwater from seeping through the foundation layer and prevents leakage caused by cracks in the floor concrete.

[0106] In this embodiment, the joints of the lock chamber bottom plate structure are mainly subjected to uneven settlement and temperature stress. The main test conditions are as follows:

[0107] (1) Working condition 1: The uneven settlement of the lock chamber floor due to the difference in foundation stiffness (settlement of 0-30 mm) was simulated to verify the sealing performance and structural stability of the new water-stop structure under the coupling conditions of longitudinal deformation (X direction) and settlement. That is, the lock chamber floor at one end is fixed and the lock chamber floor at the other end moves up and down as a whole. Figure 4 Side view of the uneven settlement experiment of the lock chamber bottom plate.

[0108] In this embodiment, a ship lock chamber bottom plate model is first constructed: the left lock chamber bottom plate is fixed to a rigid base, and the right lock chamber bottom plate is vertically raised and lowered by a vertical actuator (stroke ±30mm); a longitudinal settlement joint (initial width 1mm) is reserved between the two bottom plates, and the composite water-stop structure to be tested is embedded.

[0109] Then the loading system: the vertical actuator is linked to the multi-channel hydraulic servo controller to control the displacement of the right base plate according to the preset program (such as step-by-step loading 0-30mm); the reaction frame is used to balance the bending moment caused by settlement to prevent the model from overturning.

[0110] The specific experimental steps are as follows:

[0111] 1. Install the lock chamber bottom plate model and water-stop structure:

[0112] The left bottom plate is fixed to the base, and the right bottom plate is pre-buried with a water stop and connected to the reaction frame;

[0113] A laser displacement sensor (accuracy ±0.1 μm) is installed at the joint of the bottom plate to monitor the change in seam width.

[0114] 2. Initial state detection:

[0115] The initial joint shape was recorded using a 3D laser scanner.

[0116] 3.Graded loading and settlement:

[0117] The entire right floor plate was gradually raised in 5mm increments (simulating settlement caused by differences in foundation stiffness);

[0118] Each level of loading was maintained for 10 minutes, and data were collected after the deformation stabilized.

[0119] 4. Data synchronization collection:

[0120] Record the change of seam width (laser sensor), deformation of waterstop (FBG fiber optic sensor) and bottom plate stress (strain gauge).

[0121] 5. Destructive testing:

[0122] When the settlement reaches 30 mm, continue loading until the seam width exceeds the design allowable value and observe the failure mode of the water-stop structure.

[0123] like Figure 5 As shown, Figure 5 This is a three-dimensional diagram of the uneven settlement experiment of the lock chamber bottom plate.

[0124] (2) Working condition 2: Simulate the bending stress of the lock chamber bottom plate due to the small difference in foundation stiffness but concentrated local load, and verify the sealing performance and structural stability of the new water-stop structure under bending stress. That is, the lock chamber bottom plate at one end is fixed, and the end of the lock chamber bottom plate at the other end moves up and down. The range of the end opening is 0 to 30 mm, thereby generating bending stress; Figure 6 As shown, Figure 6 This is the side view of the bending stress of the lock chamber bottom plate.

[0125] In this embodiment, a lock chamber bottom plate model is first constructed: the left lock chamber bottom plate is fixed to a rigid base, and the right lock chamber bottom plate is vertically lifted and lowered by a vertical actuator (stroke ±30mm); a longitudinal settlement joint (initial width 1mm) is reserved between the two bottom plates, and the composite water-stop structure to be tested is embedded.

[0126] Then the loading system: the vertical actuator is linked to the multi-channel hydraulic servo controller to control the displacement of the right base plate according to the preset program (such as step-by-step loading 0-30mm); the reaction frame is used to balance the bending moment caused by settlement to prevent the model from overturning.

[0127] The specific experimental steps are as follows:

[0128] 1. Install the lock chamber bottom plate model and water-stop structure:

[0129] The left bottom plate is fixed to the base, and the right bottom plate is pre-buried with a water stop and connected to the reaction frame;

[0130] Laser displacement sensors are installed at the bottom plate joints to monitor changes in seam width.

[0131] 2. Initial state detection:

[0132] The initial joint shape was recorded using a 3D laser scanner.

[0133] 3.Graded loading and settlement:

[0134] Gradually raise the right end of the base plate in 5mm increments (simulating settlement caused by differences in foundation stiffness);

[0135] Each level of loading was maintained for 10 minutes, and data were collected after the deformation stabilized.

[0136] 4. Data synchronization collection:

[0137] Record the change of seam width (laser sensor), deformation of waterstop (FBG fiber optic sensor), water seepage (differential pressure gauge) and bottom plate stress (strain gauge).

[0138] 5. Destructive testing:

[0139] When the settlement reaches 30 mm, continue loading until the seam width exceeds the design allowable value and observe the failure mode of the water-stop structure.

[0140] like Figure 7 As shown, Figure 7 This is a three-dimensional diagram of the bending stress of the lock chamber bottom plate.

[0141] (3) Working condition 3: simulate the deformation caused by longitudinal tensile stress after the construction of the ship lock chamber bottom plate, verify the sealing performance and structural stability of the new water stop structure under pure tensile conditions, and the tensile stress range is 0-2MPa, that is, the lock chamber bottom plate at one end is fixed and the lock chamber bottom plate at the other end is stretched; Figure 8 As shown, Figure 8 This is the side view of the tensile stress of the lock chamber bottom plate.

[0142] In this embodiment, a lock chamber bottom plate model is first constructed: the left lock chamber bottom plate is fixed to a rigid base, and the right lock chamber bottom plate is longitudinally stretched by a hydraulic actuator (stroke ±30mm); a longitudinal deformation joint (initial width 1mm) is reserved between the two bottom plates, and a composite water-stop structure is embedded.

[0143] Then, the loading system: hydraulic actuator: outputs 0-2MPa tension to simulate the tensile stress during the construction stage; reaction frame: used to balance the axial force generated by the tension to prevent the model from overturning. The specific experimental steps are as follows:

[0144] 1. Zero stress state verification:

[0145] Slowly load the water at a rate of 0.1 MPa / min to 0.2 MPa, and observe the seam width and waterstop deformation;

[0146] Continue loading after confirming that the system is correct.

[0147] 2. Hierarchical loading stage:

[0148] The interval between each loading level was 5 minutes, and the stress was gradually increased to the target stress (0.5MPa, 1.0MPa, 1.5MPa, 2.0MPa);

[0149] Each level of loading was maintained for 10 minutes, and the data were recorded after the deformation stabilized.

[0150] 3. Destructive testing:

[0151] After exceeding 2.0MPa, continue loading at a rate of 0.05MPa / min until the waterstop shows obvious tearing or the water seepage increases suddenly. Figure 9 As shown, Figure 9 This is a three-dimensional diagram of the tensile stress of the lock chamber bottom plate.

[0152] like Figure 10 As shown, Figure 10 This is a scaled perspective view (1:20) of the ship lock wall. This embodiment provides a ship lock wall test. Since the loads borne at the joints of the ship lock wall structure are the same as those borne by the lock chamber bottom plate, they are mainly subjected to uneven settlement and temperature stress. Therefore, the main test conditions are as follows:

[0153] Case 1: Simulating uneven settlement of the ship lock wall due to differences in foundation stiffness (settlement of 0 to 30 mm) to verify the sealing performance and structural stability of the new water-stop structure under the coupled conditions of longitudinal deformation (X-direction) and settlement. That is, the lock wall at one end is fixed, while the other end moves up and down as a whole. Figure 11 This is a three-dimensional diagram of the uneven settlement of the gate wall structure joints.

[0154] (2) Working condition 2: Simulate the bending stress caused by local load concentration in the ship lock wall due to the small difference in foundation stiffness. Verify the sealing performance and structural stability of the new water-stop structure under bending stress. The end of the other end of the lock wall moves up and down, and the end opening range is 0 to 30 mm, thereby generating bending stress. Figure 12 This is a three-dimensional diagram of the bending stress in the joints of the gate wall structure.

[0155] (3) Working condition 3: simulates the deformation caused by longitudinal tensile stress after the construction of the ship lock wall, and verifies the sealing performance and structural stability of the new water stop structure under pure tensile conditions. The tensile stress range is 0-2 MPa, that is, the lock wall at one end is fixed and the lock wall at the other end is stretched. Figure 13 This is a three-dimensional diagram of the tensile stress in the joints of the gate wall structure.

[0156] Example 2

[0157] like Figure 14-16 As shown, Figure 14 Test results for working condition 1 Figure 1 , Figure 15 This is the test effect diagram of working condition 2. Figure 16 This is the test effect diagram of working condition 3. In this embodiment, the lock chamber bottom plate is tested in the following manner. The test scheme is divided into three working conditions:

[0158] 1. The bottom plate of the lock chamber at one end is fixed, and the bottom plate of the lock chamber at the other end can move up and down as a whole, with a downward movement range of 0-30mm;

[0159] 2. The bottom plate of the lock chamber at one end is fixed, and the end of the bottom plate of the lock chamber at the other end moves up and down, and the range of the end opening is 0 to 30 mm;

[0160] 3. The bottom plate of the lock chamber at one end is fixed, and the bottom plate of the lock chamber at the other end is stretched. The tension range is: 0-15kN;

[0161] The multi-directional coupling loading test system provided in this embodiment using the coordinated deformation control device of the composite water-stop structure of the ship lock includes a loading module, a data acquisition module, a control and analysis module, and a support structure;

[0162] The loading module is used to control the hydraulic actuator group and apply a force on the target object to be tested;

[0163] The data acquisition module is used to collect deformation signals of the target to be tested;

[0164] The control and analysis module is used to control the loading module and the data acquisition module;

[0165] The support structure is used to install the target object to be tested and the loading module;

[0166] The hydraulic actuator assembly in this embodiment is arranged on the reaction frame to apply force to the lock chamber bottom plate model;

[0167] The multi-channel A / D converter in the data acquisition module is started through the control and analysis module to collect signals such as the joint width, waterstop deformation, and stress of the composite waterstop structure in the structural joint; strain gauges or laser displacement sensors can be used to collect deformation signals.

[0168] The loading module in this embodiment controls the hydraulic actuator assembly to simulate the settlement (Z-axis), bending (Y-axis), and tensile (X-axis) deformation of the lock chamber floor. A high-rigidity reaction frame is connected to the fixed end of the lock chamber floor model to transfer the load to the model.

[0169] The multi-parameter hydraulic servo controller in this embodiment coordinates the loading rate, displacement and stress output of the three-axis actuator and supports preset working conditions (such as settlement+bending+stretching coupling).

[0170] The data acquisition module of this embodiment can select a displacement / deformation sensor: a laser displacement sensor (accuracy ±0.1μm): to monitor the width of the lock chamber floor joint and the deformation of the waterstop; a stress and strain measurement and control unit: a strain gauge (full-bridge circuit): pasted on the concrete surface of the lock chamber floor to collect local stress distribution; a multi-channel A / D converter: to convert analog signals into digital signals.

[0171] The control and analysis module of this embodiment controls the loading parameters (displacement, speed, stress) of the hydraulic actuator in real time; synchronously collects displacement, deformation and stress data; and triggers an early warning mechanism (such as automatic shutdown when the seam width exceeds the limit).

[0172] The test model of this embodiment is a scaled model: scale size: prototype size is 1:20; material: chamber bottom plate: C40 concrete; water-stop structure: composite water-stop material + high-performance rubber water-stop combination (outer layer polyurethane, middle layer OMEGA rubber, inner layer GB rubber), rigid base and reaction frame: constrain the lateral displacement of the model to ensure the accuracy of the loading direction.

[0173] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A coordinated deformation control device for a composite water-stop structure of a ship lock, characterized by: At least comprising a ship lock structure section I and a ship lock structure section II; the ship lock structure section I and the ship lock structure section II are connected to form a ship lock chamber structure; A composite water-stop structure is provided in the structural joint between the ship lock structure section I and the ship lock structure section II; The composite water-stop structure is used to connect the lock structure section I and the lock structure section II to form a lock chamber structure with coordinated deformation control.

2. The coordinated deformation control device for a composite water-stopping structure of a ship lock according to claim 1, characterized in that: The composite water-stop structure comprises a sealing outer layer, a water-stop middle layer, and a connecting inner layer; The sealing outer layer is made of elastic material and has the function of absorbing high-frequency vibrations; The middle layer of the water stop is an elastic water stop used to bear the load; The inner connection layer is made of elastic material and is used as a connector for the anchoring structure.

3. The coordinated deformation control device for a composite water-stop structure of a ship lock according to claim 1, characterized in that: The ship lock structure section I includes at least two lock walls, and the ship lock structure section II includes at least two lock walls; a lock wall composite water-stop structure is provided in the structural joint between the lock walls on the same side of the ship lock structure section I and the ship lock structure section II; The gate wall composite water-stop structure comprises a gate wall outer layer, a gate wall middle layer, and a gate wall inner layer; The outer layer of the gate wall is made of elastic sealing material and has the function of absorbing high-frequency vibrations; The middle layer of the gate wall is an elastic waterstop used to bear the load; The inner layer of the gate wall is made of elastic material and is used as a connector for the anchoring structure.

4. The coordinated deformation control device for a composite water-stop structure of a ship lock according to claim 1, characterized in that: The ship lock structure section I includes at least one lock chamber bottom plate, and the ship lock structure section II includes at least one lock chamber bottom plate; the lock chamber bottom plate is correspondingly connected to the lock wall; A bottom plate composite water-stopping structure is provided in the structural joints between the bottom plates of the lock chambers, and the bottom plate composite water-stopping structure comprises a bottom plate outer layer, a bottom plate middle layer, and a bottom plate inner layer; The outer layer of the bottom plate is made of elastic sealing material and has the function of absorbing high-frequency vibrations; The middle layer of the bottom plate is an elastic waterstop used to bear the load; The inner layer of the bottom plate is made of elastic material and is used as a connector for the anchoring structure.

5. The coordinated deformation control device for a composite water-stop structure of a ship lock according to claim 1, characterized in that: The lock chamber structure is a separate lock chamber structure; the lock wall and lock chamber bottom plate in the lock structure section I and the lock structure section II are manufactured by separate casting construction.

6. The coordinated deformation control device for a composite water-stop structure of a ship lock according to claim 1, characterized in that: The materials in the composite water-stopping structure include any one or more of polyurethane, silicone rubber, and rubber materials.

7. The coordinated deformation control device for a composite water-stop structure of a ship lock according to claim 1, characterized in that: The elastic material is arranged according to a modulus gradient, specifically as follows: The outer layer has a low modulus value range of 0.5 to 1.5 MPa, the middle layer has a high modulus value range of 1.5 to 5.0 MPa, and the inner layer has a high modulus value range of 5.0 to 10.0 MPa.

8. A multi-directional coupling loading test system using a coordinated deformation control device for a composite water-stop structure of a ship lock is characterized by: It includes loading module, data acquisition module, control and analysis module, and support structure; The loading module is used to control the hydraulic actuator group and apply a force on the target object to be tested; The data acquisition module is used to collect deformation signals of the target to be tested; The control and analysis module is used to control the loading module and the data acquisition module; The support structure is used to install the target object to be tested and the loading module.

9. The multi-directional coupling loading test system according to claim 8, characterized in that: The hydraulic actuator group is arranged on the reaction frame to apply force to the gate chamber bottom plate model; the multi-channel A / D converter in the data acquisition module is started through the control and analysis module to collect the joint width, waterstop deformation and stress signals of the composite waterstop structure in the structural joint.

Images