Detection device for karst cave simulation modeling

Abstract

The utility model relates to the technical field of pile foundation karst cave processing, in particular to a detection device for karst cave simulation modeling, which comprises a moving trolley, the moving trolley comprises a working table, a frame and a bottom plate, rollers and lifting support legs are arranged on the lower side of the bottom plate, and a take-up stand and a modeling computer are arranged on the upper side of the working table. A geophysical prospecting lifting frame is arranged on the lower side of the workbench, and a protective cover is connected to the lower side of the geophysical prospecting lifting frame; the geophysical prospecting lifting frame comprises an angle adjusting disc, spools and wheel carriers, the multiple sets of wheel carriers are evenly fixed to the lower side of the angle adjusting disc, the spools and the wheel carriers are correspondingly arranged and rotationally connected, steel cables are wound around the spools, guide holes matched with the steel cables are formed in the bottoms of the wheel carriers, and the spools are arranged in the guide holes. One end of the steel cable is connected with the protective cover; according to the geophysical prospecting lifting frame, lifting and rotating of detection equipment are stably controlled through the multiple strands of steel cables, operation is more convenient, detection accuracy is effectively guaranteed, and the detection equipment is reliably protected.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation karst cave treatment technology, and in particular to a detection device for karst cave simulation modeling. Background Technology

[0002] In areas with strong karst development, drilling is prone to problems such as borehole deviation or stuck drill, soil-rock interface collapse, and collapse of karst filling material. Before construction, testing is usually carried out, and a 3D model of the site is generated using finite element or discrete element software to identify the type of karst cave and simulate the safety status of the karst cave during the drilling process.

[0003] In existing technologies, karst cave detection is generally carried out through geophysical exploration or drilling methods. Geophysical exploration methods include high-density resistivity method and ground-penetrating radar method. The accuracy of high-density resistivity method may be affected by factors such as geological conditions, measurement distance and electrode arrangement. Ground-penetrating radar method has limited detection depth and is affected by factors such as the electrical parameters of underground medium and electromagnetic wave attenuation.

[0004] Existing geophysical exploration methods are generally conducted on the ground, which limits the detection capabilities. If depth detection is required, the equipment is lowered into the borehole using the slings of a conventional crane, which can easily cause the equipment to shake or even collide, affecting the detection. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a detection device for karst cave simulation modeling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A detection device for karst cave simulation modeling includes a mobile trolley. The mobile trolley includes a workbench, a frame, and a base plate. The base plate has rollers and lifting legs on its underside. The workbench has a cable take-up frame and a modeling computer on its upper side. The workbench has a geophysical lifting frame on its lower side, and a protective cover is connected to the lower side of the geophysical lifting frame. The geophysical lifting frame includes an angle adjustment disc, I-beam wheels, and wheel frames. Multiple sets of wheel frames are evenly fixed to the underside of the angle adjustment disc. The I-beam wheels are correspondingly arranged with the wheel frames and are rotatably connected to each other. A steel cable is wound around the I-beam wheels. The bottom of the wheel frame has a guide hole adapted to the steel cable. One end of the steel cable is connected to the protective cover.

[0008] Preferably, the angle adjustment disk is rotatably connected to the worktable, and a control device corresponding to the angle adjustment disk is provided on the lower side of the worktable.

[0009] Preferably, a stepper motor is provided on one side of the wheel frame, and the output shaft of the stepper motor is fixedly connected to the I-beam wheel.

[0010] Preferably, a wear-resistant sleeve is installed in the guide hole at the bottom of the wheel frame, and the wear-resistant sleeve slides in contact with the steel cable.

[0011] Preferably, the base plate has a through hole corresponding to the protective cover, and the worktable and angle adjustment plate have a wire feeding hole in the middle.

[0012] Preferably, the protective cover is equipped with ground-penetrating radar, a visual sensor, and lighting equipment.

[0013] The beneficial effects of this utility model are as follows:

[0014] Compared with existing technologies, this utility model lowers the detection equipment into the borehole to further detect the karst caves around the borehole, supplementing the detection of areas that cannot be detected on the ground, effectively improving the comprehensiveness of the detection. At the same time, the geophysical exploration lifting frame uses multiple steel cables to stably control the lifting and rotation of the detection equipment, making operation more convenient, effectively ensuring the accuracy of the detection, and reliably protecting the detection equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a detection device for karst cave simulation modeling proposed in this utility model;

[0016] Figure 2 This is a bottom view of the detection device for karst cave simulation modeling proposed in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of a geophysical lifting frame for a detection device used in karst cave simulation modeling proposed in this utility model.

[0018] In the diagram: 1. Workbench; 2. Take-up frame; 3. Modeling computer; 4. Frame; 5. Base plate; 6. Rollers; 7. Lifting support legs; 8. Protective cover; 9. Geophysical exploration lifting frame; 91. Control device; 92. Angle adjustment disc; 93. I-beam wheel; 94. Wheel frame; 95. Stepper motor; 96. Wear-resistant sleeve; 97. Steel cable. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Reference Figure 1-3A detection device for karst cave simulation modeling includes a mobile trolley. The mobile trolley makes it easier to move and transport. The mobile trolley includes a workbench 1, a frame 4 and a base plate 5. The base plate 5 is equipped with rollers 6 and lifting feet 7 on its lower side. The lifting feet 7 can be raised and lowered to adjust the height and are used to support and fix the mobile trolley. The upper side of the workbench 1 is equipped with a cable tray 2 and a modeling computer 3. The cable tray 2 is used to store data cables for easy connection to the detection equipment.

[0021] The modeling computer collects geological exploration data and generates a 3D model of the site using finite element or discrete element software. This provides identification of karst cave types, simulates the safety status of karst caves during the drilling process, and obtains actual geological data through drilling, geological exploration, and other means. The actual data is compared with the model prediction results to verify the accuracy and reliability of the model. It also detects and analyzes problems such as borehole deviation or stuck drill in areas with strong karst development, soil-rock interface collapse, and karst cave filling material collapse during drilling.

[0022] A geophysical lifting frame 9 is provided on the lower side of the workbench 1. A protective cover 8 is connected to the lower side of the geophysical lifting frame 9. The geophysical lifting frame 9 is used to adjust the height of the protective cover 8. The protective cover 8 is equipped with a ground radar, a visual sensor and a lighting device. Other detection sensors can be configured as needed for geological exploration and to generate the detection data required for three-dimensional modeling. A through hole corresponding to the protective cover 8 is opened on the base plate 5 to facilitate the lowering of the protective cover 8.

[0023] The geophysical exploration lifting frame 9 includes an angle adjustment plate 92, an I-beam wheel 93, and a wheel frame 94. The angle adjustment plate 92 is rotatably connected to the worktable 1. A cable release hole is provided at the rotation center of the worktable 1 and the angle adjustment plate 92 to facilitate the lowering of the data cable for testing. A control device 91 corresponding to the angle adjustment plate 92 is provided on the lower side of the worktable 1. The control device 91 includes a control motor and a locking device for rotating the angle adjustment plate 92 and fixing and locking it. It can change the orientation of the ground-penetrating radar inside the protective cover 8 to facilitate accurate detection.

[0024] The wheel frame 94 has multiple sets, which are evenly fixed to the lower side of the angle adjustment disk 92. The I-beam wheel 93 is correspondingly set with the wheel frame 94 and is rotatably connected to it. A stepper motor 95 is set on one side of the wheel frame 94. The output shaft of the stepper motor 95 is fixedly connected to the I-beam wheel 93. A steel cable 97 is wound on the I-beam wheel 93. The wheel frame 94, the I-beam wheel 93 and the steel cable 97 are set together, and generally preferably in three sets, to ensure that the three steel cables 97 can stably suspend the protective cover 8. The bottom of the wheel frame 94 has a guide hole that matches the steel cable 97. A wear-resistant sleeve 96 is installed in the guide hole at the bottom of the wheel frame 94. The steel cable 97 passes through the wear-resistant sleeve 96 and slides in contact with the steel cable 97. The wear-resistant sleeve 96 is made of copper or plastic. One end of the steel cable 97 is connected to the protective cover 8.

[0025] In this embodiment, construction personnel drill holes for exploration. After the hole is formed, it is cleaned, a detection device is installed, a moving trolley is used, the protective cover 8 is aligned with the borehole, a ground-penetrating radar is installed, a data cable is connected, a stepper motor 95 controls the rotation of the I-beam wheel 93, and the steel cable 97 is released. The three steel cables 97 can stably suspend the protective cover 8 to prevent shaking and collision with the borehole wall. Then, the cave is detected to provide data support for the three-dimensional simulation. As needed, the motor can drive the angle adjustment disk 92 to rotate through the gear structure to change the orientation of the protective cover 8 and improve the accuracy of the detection operation. The visual sensor and lighting equipment are used to photograph the inside of the borehole and provide feedback on the lowering status of the ground-penetrating radar, which can be adjusted by the detection personnel through the geophysical lifting frame 9.

[0026] In addition, if necessary, the ground-penetrating radar can be replaced with other detection sensors, such as visual sensors, ultrasonic sensors or three-dimensional laser sensors, to conduct detailed detection of the karst caves in the pile holes.

[0027] Detection equipment such as ground-penetrating radar is connected to the modeling computer 3 via a data cable, which promptly feeds back the detection data, improving the efficiency and accuracy of 3D modeling of karst caves.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A detection device for modeling a solution cavity, comprising a mobile trolley, characterized in that, The mobile trolley comprises a workbench (1), a frame (4) and a bottom plate (5), the bottom plate (5) is provided with rollers (6) and lifting legs (7) on the lower side, the workbench (1) is provided with a take-up rack (2) and a modeling computer (3) on the upper side, the workbench (1) is provided with a geophysical prospecting lifting frame (9) on the lower side, and the geophysical prospecting lifting frame (9) is connected with a protective cover (8) on the lower side. The geophysical prospecting lifting frame (9) comprises an angle adjusting disc (92), an I-shaped wheel (93) and a wheel frame (94), the wheel frame (94) is provided with multiple groups and is uniformly fixed on the lower side of the angle adjusting disc (92), the I-shaped wheel (93) is correspondingly arranged with the wheel frame (94) and is rotationally connected therebetween, the I-shaped wheel (93) is provided with a steel cable (97) wound thereon, the bottom of the wheel frame (94) is provided with a guide hole matched with the steel cable (97), and one end of the steel cable (97) is connected with the protective cover (8).

2. The detection device for modeling a solution cavity according to claim 1, wherein, The angle adjusting disc (92) is rotationally connected with the workbench (1), and the workbench (1) is provided with a control device (91) corresponding to the angle adjusting disc (92) on the lower side.

3. The detection device for modeling a solution cavity according to claim 1, wherein, One side of the wheel frame (94) is provided with a stepping motor (95), and the output shaft of the stepping motor (95) is fixedly connected with the I-shaped wheel (93).

4. The detection device for modeling a solution cavity according to claim 1, wherein, The bottom of the wheel frame (94) is provided with a wear-resistant sleeve (96) mounted in the guide hole, and the wear-resistant sleeve (96) is in sliding contact with the steel cable (97).

5. The detection device for modeling a solution cavity according to claim 1, wherein, The bottom plate (5) is provided with a through hole corresponding to the protective cover (8), and the workbench (1) and the angle adjusting disc (92) are provided with a pay-off hole in the middle.

6. The detection device for modeling a solution cavity according to claim 1, wherein, The protective cover (8) is provided with a geological radar, a visual sensor and lighting equipment.

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