Karst foundation advanced geological detector and detection method thereof

Abstract

The invention provides a karst foundation advanced geology detecting instrument and a detecting method thereof.The advanced geology detecting instrument comprises a detecting mechanism and a marking mechanism, the detecting mechanism comprises a moving vehicle, the marking mechanism is installed on the moving vehicle, a detecting radar and a host are additionally installed on the moving vehicle, and the detecting radar and the host are in signal connection; the marking mechanism comprises a placing frame fixed to the moving vehicle, a material storage box is arranged at the top of the placing frame, gear pumps are additionally arranged on the two sides of the material storage box respectively, the discharging end of the bottom of the material storage box communicates with the liquid inlet ends of the gear pumps, the liquid outlet ends of the two gear pumps communicate with liquid outlet pipes, and spray heads are arranged at the tail ends of the liquid outlet pipes. By arranging the marking mechanism, each position detected by the advanced geological detector on the karst foundation can be marked, the consistency of the positions of detection points is ensured, the change condition of a karst geologic body can be conveniently and accurately known, and powerful support is provided for evaluation and maintenance of engineering safety.

Description

Technical Field

[0001] The present invention relates to the technical field of advanced geological detectors, and specifically to an advanced geological detector for karst foundations. Background Art

[0002] A karst foundation is a foundation composed of rock (soil) layers above a karst geological structure.

[0003] Before the construction of a karst foundation, in order to prevent hidden geological defects such as karst caves and soil caves from causing subsequent foundation collapse and uneven settlement, construction workers generally use an advanced geological detector to detect it before starting work, and formulate a reasonable construction plan based on the detected data. This can ensure the stability of the subsequent foundation and improve the safety of the project. A common advanced geological detector is a ground penetrating radar detector.

[0004] However, the existing advanced geological detectors for karst foundations have the following deficiencies:

[0005] The advanced geological detector cannot mark the detection positions on the karst foundation. When construction workers need to monitor the previously detected positions on the karst foundation multiple times or for a long time, at this time, construction workers cannot ensure that the positions of each detection point are the same in each round, resulting in construction workers being unable to collect detection data at the same position in different periods. Furthermore, construction workers cannot accurately understand the changes in the karst geological body, and thus cannot provide strong support for the evaluation and maintenance of the project's safety. Summary of the Invention

[0006] Aiming at the above deficiencies of the existing technology, the present invention provides an advanced geological detector for karst foundations and its detection method. By setting a marking mechanism, each position detected by the advanced geological detector on the karst foundation can be marked, so as to ensure that the positions of each detection point are the same in each round for construction workers. Furthermore, it can ensure that construction workers can collect detection data at the same position in different periods. Then, construction workers can accurately understand the changes in the karst geological body, that is, it can provide strong support for the evaluation and maintenance of the project's safety, so as to solve the problems raised in the above background art.

[0007] The technical solution provided by the present invention: A karst foundation advanced geological detector, comprising a detection mechanism and a marking mechanism. The detection mechanism includes a mobile vehicle, and the marking mechanism is installed on the mobile vehicle. A detection radar and a host are additionally installed on the mobile vehicle, and the detection radar and the host are signal-connected. The marking mechanism includes a placement rack fixed on the mobile vehicle. A storage box is arranged at the top of the placement rack. A gear pump is additionally installed on each of the two sides of the storage box. The bottom discharge end of the storage box is communicated with an electric valve, and the discharge end of the electric valve is communicated with a three-way pipe. The liquid inlet end of each gear pump is communicated with a liquid inlet pipe, and the liquid inlet ends of the two liquid inlet pipes are respectively connected to the two liquid outlet ends of the three-way pipe. The liquid outlet ends of the two gear pumps are both communicated with a liquid outlet pipe, and the end of the liquid outlet pipe is provided with a nozzle.

[0008] Further, electric push rods are symmetrically arranged on the mobile vehicle on both sides of the detection radar. A connecting plate is fixed to the telescopic end of each electric push rod. A shielding shell is additionally installed on each connecting plate. A sponge ring is adhesively connected to the bottom end of each shielding shell. A circular ring block is provided on the surface of each of one of the groups of stable seats.

[0009] Further, each liquid outlet pipe is respectively movably sleeved between the interiors of each group of stable seats. Installation blocks are arranged inside both shielding shells.

[0010] Further, each nozzle, each installation block and each shielding shell are installed by screws. The two liquid outlet pipes are respectively fixedly sleeved inside each circular ring block.

[0011] Further, a return spring is arranged between the stable seat and the circular ring block. The liquid outlet pipes are respectively movably sleeved inside each return spring. A threading hole is preset at a position near the top of the inner wall of each shielding shell.

[0012] Further, each liquid outlet pipe is respectively movably sleeved inside each threading hole. The liquid outlet ends of each liquid outlet pipe are respectively connected to the liquid inlet ends of each nozzle. A group of connecting blocks is fixed on the placement rack. The storage box is additionally installed between the tops of the group of connecting blocks. A box cover is additionally installed on the top of the storage box.

[0013] Further, the marking mechanism further includes a controller. The telescopic ends of the two electric push rods are respectively movably sleeved inside two circular holes on the mobile vehicle. The electric push rods, the gear pumps and the electric valve are respectively electrically connected to the controller.

[0014] Further, a rectangular ring is fixed on the mobile vehicle. A battery is arranged inside the rectangular ring. A U-shaped frame is additionally installed on the rectangular ring. The battery is fixed inside the rectangular ring through the U-shaped frame.

[0015] Furthermore, a hook rack is fixed on the mobile vehicle, and a hook body is fixed on the surface of the hook rack.

[0016] Another technical solution provided by the present invention is a detection method of a karst foundation advanced geological detector, comprising the following steps:

[0017] (1) Move the entire advanced geological detector to the place where detection is required until the detection radar 106 is directly above the measured position, and use the host to send a data acquisition command to the detection radar. When the detection radar receives the command, it performs detection, and the electromagnetic wave data of the detection radar 106 is transmitted to the host;

[0018] (2) When the detection mechanism on the advanced geological detector completes the detection operation of the detection position and needs to mark the position, the controller is used to simultaneously start the two electric push rods to make the bottom of the sponge ring contact with the ground of the karst foundation;

[0019] (3) Start the gear pump to transport the liquid paint into the corresponding nozzle, and then spray a paint point on the ground of the karst foundation through the corresponding shielding shell and the corresponding sponge ring. The detection position can be confirmed by connecting the two points.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention can mark each position detected by the advanced geological detector on the karst foundation by setting a marking mechanism, thereby ensuring that the position of each detection point of each round of construction personnel is consistent, and further ensuring that the construction personnel can collect detection data at the same position at different periods, and then allow the construction personnel to accurately understand the changes in the karst geological body, which can provide strong support for the safety assessment and maintenance of the project. When the detection mechanism on the advanced geological detector completes the detection operation of the detection position, when the position marking is required, the controller, two electric push rods, two connecting plates, two shielding shells and two mounting blocks are first used to cooperate to achieve the simultaneous movement of the two nozzles and the two sponge rings.

[0022] 2. The present invention utilizes the cooperation of a controller, an open electric valve, a three-way pipe, two liquid inlet pipes and two gear pumps to extract the liquid paint in the storage box and transport it to the inside of the two liquid outlet pipes respectively. Then, the two liquid outlet pipes, two shielding shells, two sponge rings and two nozzles are used to realize paint marking on the karst base ground. When the two nozzles complete the paint spraying operation, the two gear pumps and the electric valve are directly closed by the controller. At the same time, the two electric push rods and the previous linkage components are used to reset the two nozzles to their original positions.

[0023] 3. By providing a detection mechanism, the present invention can detect the underground of a karst foundation, facilitating construction workers to understand the situation of karst geological bodies. When detecting a certain location of the karst foundation, first, with the cooperation of the mobile vehicle, the entire advanced geological detector can be moved until the detection radar is directly above the measured position. Subsequently, with the cooperation of the main unit and the detection radar, the detection operation of the underground geological body of the karst foundation can be carried out to understand the situation of the underground geological body of the karst foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view three-dimensional structure diagram of the present invention;

[0025] Figure 2 is the side view three-dimensional structure diagram of the present invention;

[0026] Figure 3 is the bottom view three-dimensional structure diagram of the present invention;

[0027] Figure 4 is the three-dimensional structure diagram of the mobile vehicle of the present invention;

[0028] Figure 5 is the partial three-dimensional structure diagram of the marking mechanism of the present invention from a top view angle;

[0029] Figure 6 is the partial three-dimensional structure diagram of the marking mechanism of the present invention from a bottom view angle;

[0030] Figure 7 is the partial sectional three-dimensional structure diagram of the marking mechanism of the present invention;

[0031] Figure 8 is the partial three-dimensional structure diagram of the marking mechanism of the present invention from another angle;

[0032] Figure 9 is the three-dimensional structure diagram of the detection radar of the present invention;

[0033] Figure 10 is the partial sectional structure diagram of the present invention from a bottom view angle.

[0034] In the figure: 1. Detection mechanism; 101. Mobile vehicle; 102. Main unit; 103. Rectangular ring; 104. Battery; 105. U-shaped frame; 106. Detection radar; 2. Hook rack; 3. Hook body; 4. Marking mechanism; 401. Placing rack; 402. Gear pump; 403. Connecting block; 404. Storage box; 405. Electric valve; 406. Three-way pipe; 407. Liquid inlet pipe; 408. Liquid outlet pipe; 409. Electric push rod; 410. Connecting plate; 411. Shielding shell; 412. Sponge ring; 413. Installation block; 414. Sprayer; 415. Stabilizing seat; 416. Ring block; 417. Return spring; 418. Threading hole; 419. Controller; 420. Box cover. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the specific implementation manners. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation to the present invention. In order to better illustrate the specific implementation manners of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. Based on the specific implementation manners in the present invention, all other specific implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "upper", "lower", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] Embodiment 1: Please refer to Figures 1 - 4 、 Figure 9 and Figure 10 As shown in, the present invention provides a technical solution: a karst foundation advanced geological detector, including a detection mechanism 1, a marking mechanism 4 is arranged on the detection mechanism 1. The detection mechanism 1 includes a mobile vehicle 101, a main machine 102 is additionally installed on the mobile vehicle 101, a rectangular ring 103 is fixed on the mobile vehicle 101, a battery 104 is arranged inside the rectangular ring 103, a U-shaped frame 105 is additionally installed on the rectangular ring 103, and the battery 104 is fixed inside the rectangular ring 103 through the U-shaped frame 105. A detection radar 106 is additionally installed on the mobile vehicle 101, a hook rack 2 is fixed on the mobile vehicle 101, and a hook body 3 is fixed on the surface of the hook rack 2.

[0039] In this embodiment, when it is necessary to detect a certain location of a karst foundation, first, with the cooperation of the mobile vehicle 101, the entire advanced geological detector is moved to the place to be detected. Subsequently, the position of the advanced geological detector is finely adjusted until the detection radar 106 is directly above the measured position (at this time, the transmitter, antenna, and receiver inside the detection radar 106 are all directly above the measured position). Then, the host 102 is used to send a data acquisition command to the detection radar 106. When the detection radar 106 receives the command, the transmitter inside the detection radar 106 will emit a high-frequency electromagnetic pulse signal according to the pre-set parameters. Subsequently, the generated high-frequency electromagnetic pulse signal will be transmitted to the ground through the cooperation of the antenna inside the detection radar 106. When the electromagnetic pulse enters the ground and encounters the interface of different electrical media during propagation in the ground, the electromagnetic wave will be reflected and refracted at this time. The reflected electromagnetic wave will be received by the antenna inside the detection radar 106 and then transmitted to the receiver inside the detection radar 106. Then, the receiver inside the detection radar 106 that receives the electromagnetic wave will amplify and digitize it. After that, the processed electromagnetic wave data will be transmitted to the data storage module inside the host 102 for storage. When the construction personnel complete the underground detection operation of the karst foundation, first, the geological radar data processing software on the host 102 is used to extract multiple stored electromagnetic wave data and then analyze and process them (using relevant data models and algorithms for processing and inversion). Subsequently, the distribution of the underground geological bodies of the karst foundation can be inferred. When it is necessary to conduct another round of detection at the same location after a certain period of time, the detection can be carried out according to the previously marked position. Then, the distribution of the underground geological bodies of the karst foundation can be inferred again. Then, the construction personnel can analyze and process these rounds of analysis data together to understand the changes in the underground geological bodies of the karst foundation, such as the expansion of karst caves and the development of fissures, providing strong support for the safety assessment and maintenance of the project.

[0040] Embodiment 2: According to Figures 1 - 8 and Figure 10As shown, a marking mechanism 4 is provided on the detection mechanism 1. The marking mechanism 4 includes a placement rack 401, a storage box 404, two electric push rods 409, two spray heads 414, two groups of stabilizing seats 415, two return springs 417, and a controller 419. Two gear pumps 402 are additionally installed on the top of the placement rack 401. The bottom discharge end of the storage box 404 is connected to an electric valve 405. The discharge end of the electric valve 405 is connected to a tee pipe 406. A connecting plate 410 is fixed to the telescopic end of each electric push rod 409. A shielding shell 411 is additionally installed on each connecting plate 410. A sponge ring 412 is adhesively connected to the bottom end of each shielding shell 411. A circular ring block 416 is provided on the surface of one of each group of stabilizing seats 415. A group of connecting blocks 403 is fixed on the placement rack 401. The storage box 404 is installed between the tops of a group of connecting blocks 403. The liquid inlet end of each gear pump 402 is connected to a liquid inlet pipe 407. The liquid inlet ends of the two liquid inlet pipes 407 are respectively connected to the two liquid outlet ends of the tee pipe 406. The liquid outlet ends of the two gear pumps 402 are both connected to a liquid outlet pipe 408. Each liquid outlet pipe 408 is respectively movably sleeved between the insides of each group of stabilizing seats 415. An installation block 413 is provided inside each of the two shielding shells 411. Each spray head 414, each installation block 413, and each shielding shell 411 are installed by screws. The two liquid outlet pipes 408 are respectively fixedly sleeved inside each circular ring block 416. The two liquid outlet pipes 408 are respectively movably sleeved inside each return spring 417. A wire passing hole 418 is preset at a position near the top of the inner wall of each shielding shell 411. Each liquid outlet pipe 408 is respectively movably sleeved inside each wire passing hole 418. The liquid outlet ends of each liquid outlet pipe 408 are respectively connected to the liquid inlet ends of each spray head 414. A box cover 420 is additionally installed on the top of the storage box 404. One end of each of the two return springs 417 is fixed to the surface of each circular ring block 416. The other end of each return spring 417 is fixed to the surface of the other stabilizing seat 415 of each group. The detection mechanism 1 includes a mobile vehicle 101. The placement rack 401 is fixed on the mobile vehicle 101. The two electric push rods 409 are both installed on the mobile vehicle 101. The telescopic ends of the two electric push rods 409 are respectively movably sleeved inside two circular holes on the mobile vehicle 101. The two groups of stabilizing seats 415 are both installed on the mobile vehicle 101. The controller 419 is installed on the mobile vehicle 101. A main unit 102 is additionally installed on the mobile vehicle 101. The electric push rods 409, the gear pumps 402, and the electric valve 405 are respectively electrically connected to the controller 419.

[0041] In this embodiment, when the detection mechanism 1 on the advanced geological detector finishes the detection operation at the detection position and needs to mark the position, the controller 419 is first used to simultaneously start two electric push rods 409. Each started electric push rod 409 will drive the corresponding shielding shell 411 to move under the cooperation of the connecting plate 410 connected thereto. Subsequently, each moving shielding shell 411 will drive the corresponding spray head 414 to move under the cooperation of the corresponding mounting block 413. At the same time, each moving shielding shell 411 will also drive the sponge ring 412 connected thereto to move. At the same time, each moving spray head 414 will also drive the corresponding liquid outlet pipe 408 under the cooperation of a corresponding set of stabilizing seats 415. At the same time, each moving liquid outlet pipe 408 will stretch the corresponding return spring 417 under the cooperation of the corresponding ring block 416 and the corresponding set of stabilizing seats 415. When the two shielding shells 411 cannot move anymore, the controller 419 will simultaneously pause the two electric push rods 409. At this time, the bottoms of the two sponge rings 412 just contact the ground of the karst foundation. Subsequently, the controller 419 will simultaneously start two gear pumps 402 and open the electric valve 405. Then, the two started gear pumps 402 will pump away the paint in the storage box 404 (the box cover 420 can be removed in advance and an appropriate amount of liquid paint can be injected into the interior of the storage box 404) under the cooperation of the two liquid inlet pipes 407, the three-way pipe 406 and the opened electric valve 405, and then respectively convey it into the interiors of the two liquid outlet pipes 408, and then respectively convey it into the corresponding spray heads 414. Then, through the cooperation of the corresponding shielding shell 411 and the corresponding sponge ring 412, a paint dot is sprayed on the ground of the karst foundation. At this time, the line connecting the two dots is the position of the detection position. When the two spray heads 414 finish the paint spraying operation, the controller 419 will close the two gear pumps 402 and the electric valve 405. Subsequently, through the cooperation of the two electric push rods 409 and the previous linkage components, the two spray heads 414 are reset to their original positions. When the two spray heads 414 start to reset and move, the two liquid outlet pipes 408 will also start to reset under the cooperation of the corresponding set of stabilizing seats 415, the corresponding ring block 416 and the resilience of the corresponding return spring 417. When the two spray heads 414 are reset to their original positions, the two liquid outlet pipes 408 are also reset to their original positions. Subsequently, the entire advanced geological detector is moved to the next position for detection, and the detected electromagnetic wave data at this place is also transmitted to the data storage module inside the host 102 for storage. Then, it is marked with paint again. This process is repeated until the detection operation of the karst foundation is completed.

[0042] The effects and working principle achieved by the entire detector are as follows:

[0043] In the preparation stage, first connect the host 102, the battery 104, and the detection radar 106 according to the professional connection method of the advanced geological detector. Then, connect the controller 419, two gear pumps 402, the electric valve 405, the battery 104, and two electric push rods 409 according to the professional electrical connection method. Next, turn on the host 102 and set various parameters. At the same time, turn on the controller 419 and also set various parameters;

[0044] In the pre-detection stage, when it is necessary to detect a certain place of the karst foundation, first use the mobile vehicle 101 to move the entire advanced geological detector to the place to be detected. Then, finely adjust the position of the advanced geological detector until the detection radar 106 is directly above the measured position (at this time, the transmitter, antenna, and receiver inside the detection radar 106 are all directly above the measured position). Next, use the host 102 to send a data acquisition command to the detection radar 106. When the detection radar 106 receives the command, the transmitter inside the detection radar 106 will emit a high-frequency electromagnetic pulse signal according to the pre-set parameters. Then, the generated high-frequency electromagnetic pulse signal will be transmitted to the ground through the cooperation of the antenna inside the detection radar 106. When the electromagnetic pulse enters the ground and encounters the interface of different electrical media during propagation in the ground, the electromagnetic wave will be reflected and refracted at this time. The reflected electromagnetic wave will be received by the antenna inside the detection radar 106 and then transmitted to the receiver inside the detection radar 106. Next, the receiver inside the detection radar 106 that receives the electromagnetic wave will amplify and digitize it. After that, the processed electromagnetic wave data will be transmitted to the data storage module inside the host 102 for storage;

[0045] Marking stage: When the detection mechanism 1 on the advanced geological detector completes the detection operation at the detection position and position marking is required, the controller 419 first starts two electric push rods 409 simultaneously. Each started electric push rod 409 will drive the corresponding shielding shell 411 to move with the cooperation of the connecting plate 410 connected thereto. Subsequently, each moving shielding shell 411 will drive the corresponding spray head 414 to move with the cooperation of the corresponding mounting block 413. At the same time, each moving shielding shell 411 will also drive the sponge ring 412 connected thereto to move. Meanwhile, each moving spray head 414 will also drive the corresponding liquid outlet pipe 408 with the cooperation of a corresponding set of stable seats 415. At the same time, each moving liquid outlet pipe 408 will stretch the corresponding return spring 417 with the cooperation of the corresponding ring block 416 and a corresponding set of stable seats 415. When the two shielding shells 411 cannot move anymore, the controller 419 will pause the two electric push rods 409 simultaneously. At this time, the bottoms of the two sponge rings 412 just contact the ground of the karst foundation. Subsequently, the controller 419 will start two gear pumps 402 and open the electric valve 405 simultaneously. Then, the two started gear pumps 402 will draw away the paint in the storage box 404 (the box cover 420 can be removed in advance and an appropriate amount of liquid paint can be injected into the interior of the storage box 404) with the cooperation of the two liquid inlet pipes 407, the three-way pipe 406, and the opened electric valve 405, and then transport it to the interiors of the two liquid outlet pipes 408 respectively, and then transport it to the corresponding spray heads 414 respectively. Then, through the cooperation of the corresponding shielding shells 411 and the corresponding sponge rings 412, a paint point is sprayed on the ground of the karst foundation. At this time, the connection line between the two points can confirm the detection position. When the two spray heads 414 complete the paint spraying operation, the controller 419 will close the two gear pumps 402 and the electric valve 405. Subsequently, through the cooperation of the two electric push rods 409 and the previous linkage components, the two spray heads 414 are reset to their original positions. When the two spray heads 414 start to reset and move, the two liquid outlet pipes 408 will also start to reset with the cooperation of a corresponding set of stable seats 415, the corresponding ring block 416, and the resilience of the corresponding return spring 417. When the two spray heads 414 are reset to their original positions, the two liquid outlet pipes 408 are also reset to their original positions. Subsequently, the entire advanced geological detector is moved to the next position for detection, and the detected electromagnetic wave data at this location is also transmitted to the data storage module inside the host 102 for storage. Then, paint marking is carried out again. This process is repeated until the detection operation of the karst foundation is completed. Then, the geological radar data processing software on the host 102 first extracts the stored multiple electromagnetic wave data and then analyzes and processes it (using relevant data models and algorithms for processing and inversion). Then, the distribution of the underground geological bodies of the karst foundation can be inferred. When it is necessary to conduct another round of detection at the same position after a certain period of time, detection can be carried out according to the previously marked position.Subsequently, the distribution of the underground geological bodies in the karst foundation is inferred. Then, the construction personnel analyze and process these rounds of analysis data together to understand the changes in the underground geological bodies in the karst foundation, such as the expansion of karst caves and the development of fissures, providing strong support for the safety assessment and maintenance of the project.

[0046] Among them, the host 102 is composed of a data storage module, a display module, a data processing module, an output module, and a housing, etc.;

[0047] The data storage module is responsible for storing the collected raw data and the data after partial processing;

[0048] The display module is connected to the data processing module and the data storage module, and can display the data processed by the data processing module in the form of intuitive images or charts;

[0049] The data processing module can read data from the data storage module, extract valuable information, and then perform various processes on the data according to the preset algorithms and parameters. Subsequently, the processed data is transmitted to the display module for visual display;

[0050] The output module is responsible for outputting the processed and analyzed data and related results to external devices or storage media. Simply put, it can output the data in the form of reports, charts, images, etc. to a printer;

[0051] The housing mainly plays a role in protecting the internal modules, providing a stable physical environment for them and preventing them from being affected by external physical damage, dust, water vapor, etc.

[0052] The detection radar 106 is composed of a transmitter, a receiver, an antenna, a housing, and a housing cover, etc.;

[0053] The transmitter is the signal source of the detection radar 106. It generates high-frequency electromagnetic pulse signals according to the parameters set by the host 102 and transmits them to the antenna;

[0054] The antenna transmits the high-frequency electromagnetic pulse signals generated by the transmitter underground and at the same time receives the electromagnetic wave signals reflected by the underground medium;

[0055] The receiver is mainly responsible for amplifying, filtering, and digitizing the weak electrical signals transmitted by the receiving antenna, and then sending them to the data storage module on the host 102 for storage;

[0056] The outer shell and the shell cover mainly play a role in protecting the internal electronic components, providing a stable physical environment for the transmitter, receiver, antenna, etc. The outer shell can prevent the influence of external physical damage, dust, water vapor, etc. on the internal components. At the same time, it can also play the role of electromagnetic shielding, reducing the influence of external electromagnetic interference on the radar system, and ensuring the accuracy and stability of radar signals. The shell cover can usually be opened to facilitate the maintenance, repair and replacement of internal components. In addition, various interfaces and buttons are designed on the outer shell.

[0057] Among them, the hook body 3 is used to hang a bag containing items or tools to be carried.

[0058] Among them, the mobile vehicle 101, the host 102, the battery 104, the detection radar 106, the electric valve 405, the electric push rod 409 and the controller 419 are all prior arts, and their models can be selected according to actual situations and will not be explained in detail here.

[0059] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A geological detector for advanced detection of karst foundation, characterized in that It includes a detection mechanism (1) and a marking mechanism (4). The detection mechanism (1) includes a mobile vehicle (101), and the marking mechanism (4) is installed on the mobile vehicle (101). A detection radar (106) and a main unit (102) are additionally installed on the mobile vehicle (101). The detection radar (106) and the main unit (102) are signal-connected. The marking mechanism (4) includes a placement rack (401) fixed on the mobile vehicle (101). A storage box (404) is arranged at the top of the placement rack (401). A gear pump (402) is additionally installed on each side of the storage box (404). The bottom discharge end of the storage box (404) is communicated with an electric valve (405). The discharge end of the electric valve (405) is communicated with a three-way pipe (406). The liquid inlet end of each gear pump (402) is communicated with a liquid inlet pipe (407). The liquid inlet ends of the two liquid inlet pipes (407) are respectively connected to the two liquid outlet ends of the three-way pipe (406). The liquid outlet ends of the two gear pumps (402) are both communicated with a liquid outlet pipe (408). The end of the liquid outlet pipe (408) is provided with a nozzle (414).

2. The advanced geological detector for karst foundation according to claim 1, characterized in that, Electric push rods (409) are symmetrically arranged on the mobile vehicle (101) on both sides of the detection radar (106). A connecting plate (410) is fixed to the telescopic end of each electric push rod (409). A shielding shell (411) is additionally installed on each connecting plate (410). A sponge ring (412) is adhesively connected to the bottom end of each shielding shell (411). A circular ring block (416) is provided on the surface of each of one of the sets of stable seats (415).

3. The advanced geological detector for karst foundation according to claim 2, characterized in that Each liquid outlet pipe (408) is respectively movably sleeved between the interiors of each set of stable seats (415). Installation blocks (413) are arranged inside both shielding shells (411).

4. The advanced geological detector for karst foundation according to claim 3, characterized in that, Each nozzle (414), each installation block (413) and each shielding shell (411) are installed by screws. The two liquid outlet pipes (408) are respectively fixedly sleeved inside each circular ring block (416).

5. The advanced geological detector for karst foundation according to claim 2, characterized in that, A return spring (417) is arranged between the stable seat (415) and the circular ring block (416). The liquid outlet pipes (408) are respectively movably sleeved inside each return spring (417). A wire passing hole (418) is preset at a position near the top of the inner wall of each shielding shell (411).

6. The advanced geological detector for karst foundation according to claim 5, characterized in that, Each liquid outlet pipe (408) is respectively movably sleeved inside each wire passing hole (418). The liquid outlet ends of each liquid outlet pipe (408) are respectively connected to the liquid inlet ends of each nozzle (414). A set of connecting blocks (403) is fixed on the placement rack (401). The storage box (404) is additionally installed between the tops of the set of connecting blocks (403). A box cover (420) is additionally installed on the top of the storage box (404).

7. The advanced geological detector for karst foundation according to claim 2, characterized in that, The marking mechanism (4) further includes a controller (419). The telescopic ends of the two electric push rods (409) are respectively movably sleeved inside two circular holes on the mobile vehicle (101). The electric push rods (409), the gear pump (402), and the electric valve (405) are respectively electrically connected to the controller (419).

8. The advanced geological detector for karst foundation according to claim 1, characterized in that A rectangular ring (103) is fixed on the mobile vehicle (101). A battery (104) is arranged inside the rectangular ring (103). A U-shaped frame (105) is additionally installed on the rectangular ring (103). The battery (104) is fixed inside the rectangular ring (103) through the U-shaped frame (105).

9. The advanced geological detector for karst foundation according to claim 1, characterized in that, A hook rack (2) is fixed on the mobile vehicle (101). A hook body (3) is fixed on the surface of the hook rack (2).

10. A detection method for a karst foundation advanced geological detector, implemented using the karst foundation advanced geological detector according to any one of claims 1-9, characterized in that, It includes the following steps: (1) Move the entire advanced geological detector to the place to be detected until the detection radar (106) is directly above the measured position. Use the host (102) to send a data acquisition command to the detection radar (106). When the detection radar (106) receives the instruction, it conducts detection, and the electromagnetic wave data of the detection radar (106) is transmitted into the host (102). (2) When the detection mechanism (1) on the advanced geological detector finishes the detection operation at the current detection position and position marking is required, first use the controller (419) to simultaneously start the two electric push rods (409) to make the bottom of the sponge ring (412) contact the ground of the karst foundation. (3) Start the gear pump (402) to transport the liquid paint into the corresponding spray heads (414). Then, through the cooperation of the corresponding shielding shells (411) and the corresponding sponge rings (412), a paint dot is sprayed on the ground of the karst foundation, and the detection position can be confirmed by connecting the two points.

Images