Underground precision detection and fracture evolution simulation test system for reclamation area

Abstract

The utility model provides an underground precision detection and crack evolution simulation test system for a reclamation area, which relates to the technical field of simulation test equipment, and comprises a coaming, a sea wave flapping device, a sensor and a data collector, the sea wave flapping devices are independently arranged on the four side faces of the testing device respectively and comprise water pumps, wave generators and control valves, the acceleration sensors are arranged in the sea wave flapping devices, the pressure sensors are arranged at the bottom of the testing platform, strain gauges are arranged at the four corners of the testing platform, and the temperature sensors are arranged in the water pool. Ultrasonic probes are respectively arranged at the bottom and the periphery of the test platform, and each sensor is connected with a data collector. According to the system, all the sensors are used, the evolution process of fractures under different environment conditions can be dynamically simulated, data analysis is facilitated, and the stability of a sea reclamation area is evaluated.

Description

Technical Field

[0001] This utility model relates to the field of simulation test equipment technology, and in particular provides a precision underground detection and fracture evolution simulation test system for reclaimed sea areas. Background Technology

[0002] Land reclamation, a common method of water development, is widely used in port construction, urban expansion, and resource development. However, the underground structure of reclaimed areas is often complex, with varying degrees of fissures, weak soil layers, and uneven foundations. These problems directly affect the stability and safety of the project. In particular, the evolution of underground fissures in reclaimed areas can lead to land subsidence, uneven settlement of buildings, and even geological disasters. Therefore, how to accurately detect underground fissures and simulate their evolution has become a pressing technical challenge in the construction of land reclamation projects.

[0003] Existing technologies for detecting underground structures in reclaimed sea areas mainly include ground-penetrating radar, seismic exploration, and drilling sampling. While these methods can detect underground structures to some extent, they have the following problems:

[0004] (1) Traditional geological radar and seismic exploration technologies are limited by resolution and cannot accurately locate deep underground fissures, especially for small fissures.

[0005] (2) Existing technologies focus more on static detection and lack effective simulation methods for the evolution of fractures under different environmental conditions. This makes it impossible for engineering designs to fully predict the evolution trend of underground fractures, thus affecting the long-term safety of the project.

[0006] (3) Existing detection methods often employ a single technology, lacking effective integration between different methods, leading to inconsistent data or unreliable accuracy of detection results. Especially in the complex underground environment of reclaimed sea areas, a single method is insufficient to comprehensively assess the spatial distribution and evolution trend of underground fissures.

[0007] (4) Most existing underground detection and fracture simulation experimental systems rely on traditional single equipment, lack systematic integration solutions, and cannot provide real-time feedback of detection data and dynamically adjust simulation models.

[0008] Therefore, how to integrate multiple detection technologies to improve the accuracy of underground structure detection, and how to simulate the evolution process of fractures in real time through numerical simulation technology, has become an important topic in current technology. Utility Model Content

[0009] To address the problems existing in current land reclamation simulation tests, this utility model provides a precision underground detection and fracture evolution simulation test system for land reclamation areas, the specific technical solution of which is as follows.

[0010] A precision underground detection and fracture evolution simulation test system for reclaimed sea areas includes a enclosure, wave impact devices, sensors, and a data acquisition unit. The enclosure, made of transparent acrylic sheet, is installed around a water tank. The wave impact devices are independently installed on the four sides of the test device, each including a water pump, a wave generator, and control valves. The water pump is connected to the wave generator, and the control valves regulate the water pump's flow rate. An acceleration sensor is installed inside the wave impact device. Multiple pressure sensors are arranged at the bottom of the test platform. Strain gauges are installed at the four corners of the test platform. Multiple temperature sensors are installed inside the water tank. Ultrasonic probes are installed at the bottom and around the perimeter of the test platform. All sensors are connected to the data acquisition unit.

[0011] Preferably, the width of the pool is half its length, the edge of the pool is set at a height 3-5cm higher than the pool itself, and the pool is made of stainless steel.

[0012] Preferably, the water pump and the wave generator are regulated by a controller, which adjusts the output flow rate of the water pump and the frequency and amplitude of the wave generator.

[0013] Preferably, the wave generator is adjusted to have a wave period of 1 Hz to 3 Hz and a wave height range of 2 cm to 50 cm.

[0014] Preferably, the sensor includes a pressure sensor, a temperature sensor, a strain gauge, and an ultrasonic probe. The pressure sensor monitors the pressure change of the soil as the crack expands, the strain gauge monitors the soil deformation, the temperature sensor monitors the water temperature and the ambient temperature, and the ultrasonic probe monitors the crack changes.

[0015] Preferably, the ultrasonic probe has a frequency of 500 kHz to 1 MHz to detect the location, depth, and width of the crack.

[0016] More preferably, at least five pressure sensors are provided, arranged in the center and around the perimeter of the experimental platform; and at least eight temperature sensors are provided, installed around the water tank and the experimental platform.

[0017] Further preferably, the bottom of the pool is provided with a drainage hole, and the height of the enclosure is less than or equal to 1.5m.

[0018] The present invention provides a precision underground detection and fracture evolution simulation test system for reclamation areas, which has the following advantages: (1) The system has precise underground detection capabilities: through the combined use of multiple high-precision sensors, it can achieve precise underground fracture detection in reclamation areas and obtain accurate fracture behavior data; (2) The system can dynamically simulate and provide real-time feedback: the system integrates the functions of simulating wave impact and fracture evolution, and can simulate the evolution process of underground fractures under different environmental conditions, and optimize the simulation model in real time based on experimental data feedback; (3) The system has strong environmental adaptability: by adjusting parameters such as wave frequency, intensity and wave type, it can simulate the impact of different marine environments on the underground structure of reclamation areas, and provide data support that is closer to the actual situation; (4) The system provides comprehensive data analysis and decision support: the system comprehensively analyzes various types of data, provides comprehensive decision support for engineering designers, and helps to assess the stability of reclamation areas in the long-term marine environment; (5) The system provides experimental data visualization: during the experiment, the data changes can be displayed intuitively through the visualization module, providing researchers with real-time analysis results, which helps to accelerate the progress of the experiment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a precision underground detection and fracture evolution simulation test system for reclaimed sea areas;

[0020] Figure 2 This is a connection diagram of the controller;

[0021] Figure 3 This is a schematic diagram of the enclosure setup;

[0022] In the diagram: 1-Experimental platform; 2-Wave impact device; 3-Water tank; 4-Temperature sensor; 5-Deformation meter; 6-Pressure sensor; 7-Acceleration sensor; 8-Water pump; 9-Motor and control system; 10-Speed ​​controller; 11-Data cable; 12-Ultrasonic probe. Detailed Implementation

[0023] Combination Figures 1 to 3 The present invention describes a specific implementation of a precision underground detection and fracture evolution simulation test system for reclaimed sea areas.

[0024] A precision underground detection and fracture evolution simulation test system for reclamation areas combines various advanced detection technologies and numerical simulation methods to accurately detect underground fractures and track their evolution in real time, further improving the safety and predictability of reclamation projects. The system specifically includes a perimeter enclosure, wave impact devices, sensors, and a data acquisition unit. A perimeter enclosure, made of transparent acrylic sheet, is installed around a pool. Wave impact devices 2 are independently installed on the four sides of the test device. Each wave impact device 2 includes a water pump 8, a wave generator, and control valves. The water pump 8 is connected to the wave generator, and the control valves regulate the water pump flow. An acceleration sensor 7 is installed inside the wave impact device. Each wave impact device 2 can be independently controlled to simulate waves of different intensities, frequencies, and wavelengths. The design of each device supports the generation of different wave types and is flexible enough to meet different experimental needs. Multiple pressure sensors 6 are arranged at the bottom of the test platform, strain gauges are set at the four corners of the test platform 1, multiple temperature sensors 4 are set in the water tank, and ultrasonic probes 12 are set at the bottom and around the test platform 1. Each sensor is connected to the data acquisition unit through a data cable 11.

[0025] The experimental platform 1 has a square base, with a reasonable layout of the experimental apparatus and testing area. The central area of ​​the platform serves as the core of the experiment, while the surrounding area will accommodate wave-beating devices 2 in four directions. Wave-beating devices 2 will be installed around the platform's perimeter, while the central area will be used for crack detection and data acquisition within the experimental area. The platform is enclosed on all four sides by transparent acrylic panels, the height of which is adjusted according to the specific experiment, generally not exceeding 1.5m to allow for observation of the platform's interior and prevent water overflow. Additionally, the width of the pool is half its length, and the edge of the pool is set 3-5cm higher than the pool's height. The pool is made of stainless steel. Drainage holes are provided at the bottom of the pool, and the enclosure height is less than or equal to 1.5m. These drainage holes at the bottom of the experimental system's pool allow for rapid drainage after the experiment, maintaining the pool's cleanliness and facilitating preparation for the next experiment. Considering that the experimental water is simulated seawater, which is corrosive, regular maintenance is required after the experiment.

[0026] The water pump and wave generator are regulated by a controller, which adjusts the pump's output flow rate and the wave generator's frequency and amplitude. The wave generator adjusts the wave period from 1Hz to 3Hz and the wave height from 2cm to 50cm, simulating wave characteristics in different marine environments. The controller can be connected to a computer for programming, allowing adjustment of wave intensity, frequency, and direction. A speed controller precisely regulates the water pump's output flow rate, thereby altering the wave's energy and frequency. By adjusting the wave generator's frequency and amplitude, different wave types, such as sine waves and pulse waves, can be simulated.

[0027] In the wave-beating apparatus, the water pump 8 is the key component for wave generation, responsible for propelling the water flow and generating waves. Each beating device is equipped with one water pump, and the intensity and frequency of the waves can be controlled by adjusting the pump's flow rate and pressure. The wave generator, connected to the water pump, consists of a series of adjustable push plates, which can be horizontal or inclined depending on the specific experiment. The water pump pushes water against the push plates, which generate waves by swinging back and forth. The wave generator can adjust the frequency and amplitude of the plate's movement to simulate different types of waves, such as sine waves and pulse waves. Control valves are used to regulate the water pump's flow rate, thereby controlling the wave height and energy. Wave propagation occurs through enclosed water tanks. The width and length of the water tank area in each device ensure that the generated waves cover the entire experimental area of ​​the platform, and the depth is adjustable. For general experiments, it can be set to 0.3m; for experiments requiring stronger waves or longer wavelengths, it can be adjusted to 0.5m. This ensures that the generated waves fully propagate and impact the experimental platform, meeting different experimental requirements. The water tanks and beating devices can be made of corrosion-resistant, strong, and easy-to-maintain stainless steel. Each wave-beating device is equipped with an accelerometer to monitor wave changes in real time. Based on real-time sensor data feedback, the system can automatically adjust the water pump flow rate and the wave generator's operating frequency to ensure the accuracy and consistency of the wave simulation.

[0028] The sensors include pressure sensors, temperature sensors, strain gauges, and ultrasonic probes. The pressure sensors monitor soil pressure changes as the cracks expand, the strain gauges monitor soil deformation, the temperature sensors monitor water and ambient temperatures, and the ultrasonic probes monitor crack changes. The ultrasonic probes operate at a frequency of 500 kHz to 1 MHz and detect the location, depth, and width of the cracks. At least five pressure sensors are installed, one in the center and one around the perimeter of the experimental platform; at least eight temperature sensors are installed around the water tank and the experimental platform.

[0029] Specifically, six pressure sensors can be installed on the bottom of the platform, located in the center and around the perimeter, to monitor changes in underground pressure in real time. These sensors can accurately capture soil pressure changes during fracture propagation, providing crucial information on fracture development. Four strain gauges are positioned at the four corners and center of the platform to monitor soil and platform structure deformation, particularly strain during wave impact and fracture propagation. Eight temperature sensors are installed inside the water tank and the experimental platform to monitor changes in water and ambient temperature.

[0030] Four ultrasonic probes, each with a frequency ranging from 500 kHz to 1 MHz, were installed on the bottom and around the experimental platform to provide high-resolution data on underground fissures. The ultrasonic probes employed a transmit-receive mode, enabling real-time monitoring of fissure changes. After filtering and amplification, the received echo signals were analyzed to determine the fissure's location, depth, width, and trend. The system provides a 3D visualization interface to help researchers more intuitively view the fissure evolution process.

[0031] All sensors are connected to a central data acquisition system via wired connections. The system can collect and process sensor data in real time and display real-time wave conditions, pressure, strain, and temperature changes through a computer interface. The data is stored for subsequent analysis.

[0032] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A precision underground detection and fracture evolution simulation test system for reclaimed sea areas, characterized in that, The test setup includes a perimeter panel, wave impact devices, sensors, and a data acquisition unit. A perimeter panel, made of transparent acrylic sheet, is installed around the perimeter of the pool. The wave impact devices are independently installed on the four sides of the test setup. Each wave impact device includes a water pump, a wave generator, and control valves. The water pump is connected to the wave generator, and the control valves regulate the water pump's flow rate. An acceleration sensor is located inside the wave impact device. Multiple pressure sensors are arranged at the bottom of the test platform. Strain gauges are installed at the four corners of the test platform. Multiple temperature sensors are installed inside the pool. Ultrasonic probes are installed at the bottom and around the perimeter of the test platform. All sensors are connected to the data acquisition unit.

2. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 1, characterized in that, The width of the pool is half its length, and the edge of the pool is set 3-5cm higher than the pool itself. The pool is made of stainless steel.

3. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 1, characterized in that, The water pump and wave generator are regulated by a controller, which adjusts the output flow rate of the water pump and the frequency and amplitude of the wave generator.

4. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 3, characterized in that, The wave generator adjusts the wave period to 1Hz to 3Hz, and the wave height ranges from 2cm to 50cm.

5. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 1, characterized in that, The sensor includes a pressure sensor, a temperature sensor, a strain gauge, and an ultrasonic probe. The pressure sensor monitors the pressure change of the soil as the crack expands, the strain gauge monitors the soil deformation, the temperature sensor monitors the water temperature and the ambient temperature, and the ultrasonic probe monitors the crack changes.

6. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 5, characterized in that, The ultrasonic probe has a frequency of 500kHz to 1MHz and detects the location, depth, and width of the crack.

7. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 5, characterized in that, At least five pressure sensors are provided, arranged in the center and around the perimeter of the experimental platform; at least eight temperature sensors are provided, installed around the water tank and the experimental platform.

8. The precision underground detection and fracture evolution simulation test system for reclaimed sea areas according to claim 1, characterized in that, The bottom of the pool is provided with a drainage hole, and the height of the enclosure is less than or equal to 1.5m.

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