Layout and detection analysis method and device of three-dimensional micro-motion detection array

Abstract

The invention belongs to the technical field of three-dimensional micro-motion detection, and particularly relates to a three-dimensional micro-motion detection array layout and detection analysis method and device.A1, a three-dimensional micro-motion detection device is arranged, N node seismometers form a square array at equal intervals, the coordinate position of each node seismometer is set as a measuring point, and the measuring point is set as a measuring point; each measuring point is subjected to micro-motion detection by adopting an L-shaped table array; a2, starting N node seismographs in the three-dimensional micro-motion detection platform array to carry out micro-motion detection; a3, exporting the detection data of the N node seismographs, and acquiring the detection data according to the set acquisition starting time and the actual acquisition time; a4, exporting the collected data of the N measuring points, namely the waveform data of the N node seismometers corresponding to each measuring point, and extracting the phase velocity value of the deep part of each measuring point; the three-dimensional micro-motion detection platform array is easier to operate and construct, data utilization is maximized, the early-stage equipment investment threshold and the construction operation threshold are relatively lower, and the exploration precision is higher.

Description

Technical Field

[0001] The present invention belongs to the technical field of three-dimensional micro-motion detection, and in particular to a three-dimensional micro-motion detection array and a detection and analysis method and device. Background Art

[0002] Micromotion refers to the tiny vibrations caused by non-earthquakes that exist on the earth at all times. The micromotion detection method is based on the theory of stationary random processes and extracts the surface wave dispersion curve from the vertical component of the micromotion signal. By inverting the dispersion curve, the shear wave velocity structure of the underground medium is obtained to achieve the purpose of detection.

[0003] At present, the commonly used methods are the spatial autocorrelation method (SPAC), the extended spatial autocorrelation method (ESPAC), the spectral ratio method (H / V), etc. The extended spatial autocorrelation method (ESPAC) is an extension of the spatial autocorrelation method (SPAC). Because the SPAC method has high requirements on the construction environment, in the working environment where it is not convenient to deploy the SPAC array, L-type, T-type, cross-type, linear array and other types can be used. This method effectively solves the situation of construction environment restrictions, especially the linear array, which is extremely convenient to deploy. In cities with rich noise sources, the accuracy is basically the same as SPAC. However, because this method is based on spatial autocorrelation and is limited in construction conditions, the old single-point construction method of the spatial autocorrelation method (SPAC) is still used in both construction and data collation. Although the efficiency in deploying the array has been improved compared to the SPAC method, the overall construction efficiency is still low. At the same time, during detection, it is necessary to set up an array bracket on the ground, and the detection site for setting up the array bracket is outdoors. The wires of the deployment and detection devices will be contaminated with mud and sand during the winding process. The mud and sand and the wires are wound up simultaneously, and need to be manually cleaned. The storage is cumbersome, which affects the use effect of the equipment.

[0004] To this end, the present invention provides a method and device for the deployment and detection analysis of a three-dimensional micro-motion detection array. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a method for the arrangement and detection analysis of a three-dimensional micro-motion detection array described in the present invention comprises the following steps:

[0007] A1. Lay out the three-dimensional micromotion detection device and form an equally spaced square array through N node seismometers. The coordinate position of each node seismometer is set as a measuring point. Each measuring point uses an L-shaped array for micromotion detection.

[0008] A2. Start the N-channel node seismometers in the three-dimensional micromotion detection array to conduct micromotion detection;

[0009] A3. After the micro-motion detection of the N-channel node seismographs is completed, the detection data of the N-channel node seismographs are exported, and according to the set acquisition start time and the actual acquisition time, the detection data of the N-channel node seismographs within the actual acquisition time are extracted, and the n detection data of each measuring point corresponding to the L-type array within the actual acquisition time are stored as the acquisition data of the measuring point;

[0010] A4. Export the collected data of N measuring points, i.e. the waveform data of N-channel node seismographs corresponding to each measuring point, and then obtain the dispersion curve of each measuring point according to the surface wave processing software, invert the phase velocity value below the measuring point, and extract the phase velocity value in the deep part of each measuring point.

[0011] Preferably, the method further comprises the following steps:

[0012] B1. A plurality of three-dimensional micromotion detection arrays are provided, and each three-dimensional micromotion detection array is provided with N node seismometers;

[0013] B2. According to the numbering of each measuring point of the three-dimensional micro-motion detection array and the numbering of the node seismometers at the measuring points, an observation system of the L-type array is established for each measuring point. Each measuring point observation system corresponds to n measuring points of the L-type array.

[0014] A three-dimensional micro-motion detection device is applied to the above-mentioned three-dimensional micro-motion detection array layout and detection analysis method, comprising a containing box, a winding mechanism, a liquid supply mechanism and a cleaning mechanism.

[0015] The winding mechanism includes a winding roller and a driving motor. The winding roller is rotatably installed inside the accommodating box, the driving motor is fixedly installed in the inner cavity of the accommodating box, and the output shaft of the driving motor is fixedly connected to the axial end of the winding roller.

[0016] The cleaning mechanism includes an installation box, a cleaning layer and an installation shell. The installation shell is fixedly installed inside the accommodating box, the installation box is fixedly installed inside the installation shell, the cleaning layer is arranged in the inner cavity of the installation box, and a gap for the cable to pass through is arranged in the middle of the cleaning layer.

[0017] The liquid supply mechanism comprises a storage box and a connecting piece. The storage box is used to store cleaning liquid. The connecting piece is fixedly installed inside the storage box. One end of the connecting piece penetrates the storage box and is fixedly connected to the cleaning layer.

[0018] Preferably, the control shaft is rotatably installed on the inner wall of the installation box, the radial outer wall of the control shaft is connected with a connecting sleeve through a bidirectional thread, and a guide rod is fixedly installed on the inner wall of the installation box, and the outer wall of the guide rod is slidably fitted with the inside of the connecting sleeve.

[0019] A control sleeve for the cable to pass through is fixedly mounted on the outer wall of the connecting sleeve.

[0020] Preferably, an extrusion cam is fixedly mounted on the radial outer wall of the control shaft, an elastic block is fixedly mounted on the inner wall of the accommodating box, a cavity is arranged inside the elastic block, and an air inlet and an air exhaust hole are arranged on the outer wall of the elastic block.

[0021] A one-way valve is arranged at the air inlet of the elastic block.

[0022] A guide ring is slidably arranged on the inner wall of the accommodation box, a support plate for clamping the cable is fixedly connected to the inner wall of the guide ring, and the inner cavity of the guide ring is communicated with the exhaust hole of the elastic block through a conduit.

[0023] Preferably, a guide rail is fixedly mounted on the inner wall of the accommodating box, a mounting bracket is slidably mounted on the inner wall of the guide rail, and the bottom end of the mounting bracket is fixedly connected to the outer wall of the guide ring.

[0024] Preferably, a transmission shaft is rotatably mounted on the inner wall of the storage box.

[0025] A plurality of connecting plates are provided, and the transmission shaft passes through the plurality of connecting plates. A mounting plate is fixedly installed on the outer wall of the transmission shaft, and an inclined plate and a spiral plate are fixedly installed on the axial end of the mounting plate, and the spiral plate passes through the inclined plate.

[0026] Preferably, a transmission cylinder is fixedly mounted on the axial end of the winding roller, and the transmission cylinder rotates synchronously with the control shaft, and the control shaft and the transmission shaft rotate synchronously.

[0027] Preferably, a bearing sleeve is fixedly mounted on the inner wall of the accommodating box, a support rod is slidably mounted on the inner wall of the bearing sleeve, the support rod passes through the bottom surface of the accommodating box and is fixedly mounted with an anti-slip sheet.

[0028] A control ring is rotatably mounted on the bottom surface of the accommodating box, and the support rod penetrates the control ring and is connected with the control ring through internal and external thread matching.

[0029] Preferably, a control ratchet is fixedly mounted on the radial outer wall of the control ring, an adjusting rod is rotatably mounted on the bottom surface of the accommodating box via a torsion spring, a pressing rod is rotatably mounted on the middle part of the adjusting rod via a torsion spring, and the other end of the pressing rod is engaged with the outer wall of the control ratchet.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. The three-dimensional micro-motion detection array of the present invention is easier to operate and construct, data utilization is maximized, and the initial equipment investment threshold and construction operation threshold are relatively lower; and the accuracy of the L-type array is higher than that of the linear array. Therefore, the three-dimensional micro-motion detection array of the present invention uses an L-type array for each measuring point, and its survey accuracy is also higher than that of the two-dimensional linear array.

[0032] 2. The present invention provides an installation box, a cleaning layer is provided inside the installation box, a winding roller is provided inside the accommodating box, the winding roller is driven by a driving motor, a gap is provided in the middle of the cleaning layer for the cable to pass through, the cleaning layer is a common elastic sponge, which is wrapped around the outer wall of the cable after the cable passes through, and when the cable is wound up after use, the dirt on the outer wall of the cable is wiped off by the cleaning layer, thereby improving the service life of the cable, and at the same time, a storage box for storing cleaning liquid is provided inside the accommodating box, a connecting piece is provided inside the storage box, the connecting piece is connected to the cleaning layer, and the connecting piece wets the cleaning layer through capillary action, so that the cleaning liquid penetrates into the cleaning layer, thereby improving the cleaning effect during the wiping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of installing the housing in the present invention;

[0036] Figure 3 It is a schematic diagram of the installation of the winding roller in the present invention;

[0037] Figure 4 It is a schematic diagram of the installation of the connecting sleeve in the present invention;

[0038] Figure 5 It is a schematic diagram of the installation of the guide ring in the present invention;

[0039] Figure 6 It is a schematic diagram of the installation of the cleaning layer in the present invention;

[0040] Figure 7 It is a schematic diagram of the installation of the inclined plate in the present invention;

[0041] Figure 8 It is a schematic diagram of the installation of the support plate in the present invention;

[0042] Fig. 9 It is a schematic diagram of the installation of the bearing sleeve in the present invention;

[0043] Fig.10 It is a schematic diagram of the structure of the control loop in the present invention;

[0044] Fig.11 It is a flow chart of the detection and analysis method in the present invention.

[0045] In the figure: 1. accommodating box; 2. mounting box; 3. mounting shell; 4. guide rail; 5. driving motor; 6. mounting bracket; 7. winding roller; 8. guide ring; 9. transmission cylinder; 10. cleaning layer; 11. control shaft; 12. extrusion cam; 13. guide rod; 14. connecting sleeve; 15. control sleeve; 16. elastic block; 17. storage box; 18. transmission shaft; 19. connecting piece; 20. mounting plate; 21. inclined plate; 22. spiral plate; 23. support plate; 24. bearing sleeve; 25. support rod; 26. control ring; 27. control ratchet; 28. pressure rod; 29. ​​adjusting rod. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0047] like Fig.11 As shown, a method for the arrangement and detection analysis of a three-dimensional micro-motion detection array includes the following steps:

[0048] A1. Lay out the three-dimensional micromotion detection device and form an equally spaced square array through N node seismometers. The coordinate position of each node seismometer is set as a measuring point. Each measuring point uses an L-shaped array for micromotion detection.

[0049] A2. Start the N-channel node seismometers in the three-dimensional micromotion detection array to conduct micromotion detection;

[0050] A3. After the micro-motion detection of the N-channel node seismographs is completed, the detection data of the N-channel node seismographs are exported, and according to the set acquisition start time and the actual acquisition time, the detection data of the N-channel node seismographs within the actual acquisition time are extracted, and the n detection data of each measuring point corresponding to the L-type array within the actual acquisition time are stored as the acquisition data of the measuring point;

[0051] A4. Export the collected data of N measuring points, i.e. the waveform data of N-channel node seismographs corresponding to each measuring point, and then obtain the dispersion curve of each measuring point according to the surface wave processing software, invert the phase velocity value below the measuring point, and extract the phase velocity value in the deep part of each measuring point.

[0052] The method further comprises the following steps:

[0053] B1. A plurality of three-dimensional micromotion detection arrays are provided, and each three-dimensional micromotion detection array is provided with N node seismometers;

[0054] B2. According to the numbering of each measuring point of the three-dimensional micro-motion detection array and the numbering of the node seismometers at the measuring points, an observation system of the L-type array is established for each measuring point. Each measuring point observation system corresponds to n measuring points of the L-type array.

[0055] Through the above method, the micro-motion detection is upgraded from the past one-dimensional single-point detection to three-dimensional detection through reasonable array layout. Compared with the latest two-dimensional survey line rolling operation with a small number of channels first and then round-trip survey operation, the three-dimensional micro-motion detection array arranged by the present invention is arranged at one time, and the construction efficiency has been greatly improved. In the traditional method of first two-dimensional and then three-dimensional, the data collection time of each survey line is different, and the data is spliced ​​into a three-dimensional image through two-dimensional profiles, while the data under each three-dimensional micro-motion detection array of the present invention is unified in the time domain, which is a three-dimensional imaging within the actual collection time; in addition, under the same accuracy condition, the three-dimensional micro-motion detection array of the present invention proposes the optimal channel number node seismograph number formula N = (n-1) 2 As long as the node seismographs are arranged according to the formula for the number of node seismographs with the optimal number of channels, only one node seismograph is arranged at each measuring point. According to the measuring point observation system combination formula given by the present invention, the most reasonable L-type array can be selected at each measuring point, and each measuring point uses an L-type array with an equal number of channels to extract dispersion and inversion, and the sounding depth is basically the same. Compared with a large-channel dense array, the present invention is easier to operate and construct, data utilization is maximized, and the initial equipment investment threshold and construction operation threshold are relatively lower; and the accuracy of the L-type array is higher than that of the linear array, so the three-dimensional micro-motion detection array of the present invention uses an L-type array for each measuring point, and its survey accuracy is also higher than that of the two-dimensional linear array.

[0056] like Figures 1 to 10 As shown, a three-dimensional micro-motion detection device described in the present invention is applied to the layout and detection analysis method of the above-mentioned three-dimensional micro-motion detection array, including a containing box 1, a winding mechanism, a liquid supply mechanism and a cleaning mechanism, wherein the containing box 1 is used to support computers and other equipment during outdoor testing and provide a platform, and cables for connecting equipment are arranged inside.

[0057] The winding mechanism includes a winding roller 7 and a driving motor 5. The winding roller 7 is rotatably installed inside the accommodating box 1. The winding roller 7 is used to wind up the cable, wherein one end of the cable extends from the center position of one axial end of the winding roller 7 and extends to the upper end surface of the accommodating box 1 to facilitate the connection of devices such as computers.

[0058] The drive motor 5 is fixedly installed in the inner cavity of the accommodating box 1, and the output shaft of the drive motor 5 is fixedly connected to the axial end of the winding roller 7. The other end of the cable is connected to an external detection device. The cable winding and unwinding are controlled by rotating the drive motor 5. When connecting the device, the cable is convenient to extend. When storing, the storage space can be saved by winding the cable.

[0059] The cleaning mechanism includes an installation box 2, a cleaning layer 10 and an installation shell 3, wherein the installation shell 3 is fixedly installed inside the containing box 1, and the installation box 2 is fixedly installed inside the installation shell 3, and the installation shell 3 provides an installation space for the installation box 2, wherein the side walls of the containing box 1, the installation box 2 and the installation shell 3 are all provided with through holes for cables to pass through.

[0060] The cleaning layer 10 is arranged in the inner cavity of the installation box 2, and a gap for the cable to pass through is arranged in the middle of the cleaning layer 10. The cleaning layer 10 is a common elastic sponge, which is wrapped around the outer wall of the cable after the cable passes through. When the cable is rolled up after use, the dirt on the outer wall of the cable is wiped by the cleaning layer, thereby improving the service life of the cable.

[0061] The liquid supply mechanism includes a storage box 17 and a connecting piece 19. The storage box 17 is used to store cleaning liquid. The connecting piece 19 is fixedly installed inside the storage box 17, wherein the connecting piece 19 is a common cotton board. A conduit for adding cleaning liquid is provided on the outer wall of the storage box 17, and the conduit extends to the outer wall of the accommodating box 1.

[0062] One end of the connecting piece 19 passes through the storage box 17 and is fixedly connected to the cleaning layer 10. After the cleaning liquid is injected into the storage box 17, the connecting piece 19 wets the cleaning layer 10 through capillary action, so that the cleaning liquid penetrates into the cleaning layer 10, thereby improving the cleaning effect during the wiping process.

[0063] The control shaft 11 is rotatably installed on the inner wall of the mounting box 2, wherein a reciprocating thread groove is opened on the outside of the control shaft 11, and a connecting sleeve 14 is connected to the radial outer wall of the control shaft 11 through a bidirectional thread. The control shaft 11 is rotated to control the connecting sleeve 14 to reciprocate along the axis of the control shaft 11.

[0064] In order to prevent the connecting sleeve 14 from rotating synchronously during the rotation of the control shaft 11, a guide rod 13 is fixedly installed on the inner wall of the installation box 2, and the outer wall of the guide rod 13 slides in contact with the inside of the connecting sleeve 14. The sliding trajectory of the connecting sleeve 14 is limited by the sliding cooperation between the guide rod 13 and the connecting sleeve 14, thereby preventing the connecting sleeve 14 from rotating during the rotation of the control shaft 11.

[0065] A control sleeve 15 for the cable to pass through is fixedly mounted on the outer wall of the connecting sleeve 14 . During the cable winding process, the control shaft 11 is rotated to control the connecting sleeve 14 and the control sleeve 15 to slide back and forth synchronously, thereby controlling the cable to be evenly wound on the radial outer wall of the winding roller 7 .

[0066] The extrusion cam 12 is fixedly mounted on the radial outer wall of the control shaft 11 , and rotating the control shaft 11 drives the extrusion cam 12 to rotate along the axis.

[0067] An elastic block 16 is fixedly mounted on the inner wall of the container 1, a cavity is provided inside the elastic block 16, and an air inlet hole and an air outlet hole are provided on the outer wall of the elastic block 16. After pressing the elastic block 16, the elastic block 16 is controlled to recover by its own elastic force, and the extrusion cam 12 is rotated to squeeze the outer wall of the elastic block 16 through the extrusion cam 12;

[0068] One-way valves are provided at the air inlet and the air outlet of the elastic block 16. The gas flow directions of the two one-way valves are opposite. When the elastic block 16 is pressed, the gas inside the elastic block 16 is discharged through the air outlet. During the recovery process of the elastic block 16, the outside air enters the inner cavity of the elastic block 16 through the air inlet.

[0069] A guide ring 8 is slidably provided on the inner wall of the accommodating box 1, and a support plate 23 for clamping the cable is fixedly connected to the inner wall of the guide ring 8, wherein the guide ring 8 is a hollow structure, and multiple support plates 23 are evenly arranged in a ring shape along the axis of the guide ring 8. When the cable passes through, the cable is clamped by multiple support plates 23.

[0070] The inner cavity of the guide ring 8 is connected to the exhaust hole of the elastic block 16 through a conduit. The control shaft 11 rotates to control the extrusion cam 12 to reciprocately squeeze the elastic block 16, so that the elastic block 16 exhausts air into the guide ring 8, thereby increasing the air flow speed inside the guide ring 8. After wiping the cable, the air flow speed on the cable surface is increased, thereby achieving the drying of residual detergent.

[0071] A guide rail 4 is fixedly installed on the inner wall of the accommodating box 1, and a mounting bracket 6 is slidably installed on the inner wall of the guide rail 4. The outer wall of the mounting bracket 6 slides and fits with the inner wall of the guide rail 4, and the guide rail 4 provides a sliding track for the mounting bracket 6.

[0072] The bottom end of the mounting bracket 6 is fixedly connected to the outer wall of the guide ring 8, thereby realizing a sliding connection between the guide ring 8 and the guide rail 4. During the reciprocating sliding of the control sleeve 15, the guide ring 8 slides easily, thereby reducing the shear force on the cable when winding the cable, thereby improving the safety of use.

[0073] A transmission shaft 18 is rotatably mounted on the inner wall of the storage box 17 , and a sealed bearing is provided at the contact position between the transmission shaft 18 and the storage box 17 , thereby achieving a sealed connection between the transmission shaft 18 and the storage box 17 .

[0074] A plurality of connecting plates 19 are provided, and the transmission shaft 18 passes through the plurality of connecting plates 19 . A mounting plate 20 is fixedly mounted on the outer wall of the transmission shaft 18 , and the mounting plate 20 is located between two adjacent mounting plates 20 .

[0075] An inclined plate 21 and a spiral plate 22 are fixedly mounted on the axial end of the mounting disk 20. The spiral plate 22 penetrates the inclined plate 21. The rotating transmission shaft 18 drives the mounting disk 20 to rotate, thereby disturbing the cleaning liquid through the rotation of the inclined plate 21 and the spiral plate 22. When the liquid level of the cleaning liquid is lowered, the connecting sheet 19 is kept in contact with the cleaning liquid as much as possible, thereby maintaining the wetting effect of the cleaning sheet 10.

[0076] A transmission cylinder 9 is fixedly installed at the axial end of the winding roller 7, and the transmission cylinder 9 rotates synchronously with the control shaft 11. The outer walls of the transmission cylinder 9 and the control shaft 11 are provided with pulleys, and the two pulleys are connected by belts, so that the control shaft 11 is driven to rotate when the winding roller 7 rotates, so that the cables are evenly distributed on the outer wall of the winding roller 7.

[0077] The control shaft 11 and the transmission shaft 18 rotate synchronously. Pulleys are provided on the outer walls of the control shaft 11 and the transmission shaft 18. The pulleys are connected by belts, and drive the transmission shaft 18 to rotate when the control shaft 11 rotates.

[0078] A bearing sleeve 24 is fixedly mounted on the inner wall of the containing box 1 , and a support rod 25 is slidably mounted on the inner wall of the bearing sleeve 24 , so that the bearing sleeve 24 provides a sliding track for the support rod 25 .

[0079] The support rod 25 passes through the bottom surface of the storage box 1 and is fixedly installed with an anti-skid sheet. When in use, the bottom surface is supported by the anti-skid sheet. There are multiple support rods 25. In this embodiment, there are four support rods 25, which are respectively located at the corners of the bottom surface of the storage box 1. By adjusting the support rods 25, the balance of the storage box 1 can be adjusted.

[0080] A control ring 26 is rotatably mounted on the bottom surface of the accommodating box 1 , and the support rod 25 passes through the control ring 26 and is connected to the control ring 26 through internal and external threads. Rotating the control ring 26 drives the support rod 25 to slide, thereby achieving sliding adjustment of the support rod 25 .

[0081] A control ratchet 27 is fixedly installed on the radial outer wall of the control ring 26, and an adjusting rod 29 is rotatably installed on the bottom surface of the accommodating box 1 through a torsion spring. A pressing rod 28 is rotatably installed on the middle part of the adjusting rod 29 through a torsion spring, and the other end of the pressing rod 28 is engaged with the outer wall of the control ratchet 27. The adjusting rod 29 is reciprocated to press the control ratchet 27 through the pressing rod 28, thereby adjusting the rotation of the control ring 26 to facilitate the sliding adjustment of the support rod 25.

[0082] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as limiting the scope of protection of the present invention.

[0084] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for the deployment and detection analysis of a three-dimensional micro-motion detection array, characterized in that: The following steps are involved: A1. Lay out the three-dimensional micromotion detection device and form an equally spaced square array through N node seismometers. The coordinate position of each node seismometer is set as a measuring point. Each measuring point uses an L-shaped array for micromotion detection. A2. Start the N-channel node seismometers in the three-dimensional micromotion detection array to conduct micromotion detection; A3. After the micro-motion detection of the N-channel node seismographs is completed, the detection data of the N-channel node seismographs are exported, and according to the set acquisition start time and the actual acquisition time, the detection data of the N-channel node seismographs within the actual acquisition time are extracted, and the n detection data of each measuring point corresponding to the L-type array within the actual acquisition time are stored as the acquisition data of the measuring point; A4. Export the collected data of N measuring points, i.e. the waveform data of N-channel node seismographs corresponding to each measuring point, and then obtain the dispersion curve of each measuring point according to the surface wave processing software, invert the phase velocity value below the measuring point, and extract the phase velocity value in the deep part of each measuring point.

2. The method for arranging and detecting and analyzing a three-dimensional micro-motion detection array according to claim 1 is characterized in that: The following steps are also included: B1. A plurality of three-dimensional micromotion detection arrays are provided, and each three-dimensional micromotion detection array is provided with N node seismometers; B2. According to the numbering of each measuring point of the three-dimensional micro-motion detection array and the numbering of the node seismometers at the measuring points, an observation system of the L-type array is established for each measuring point. Each measuring point observation system corresponds to n measuring points of the L-type array.

3. A three-dimensional micro-motion detection device, which is applied to the arrangement and detection analysis method of the three-dimensional micro-motion detection array according to claim 2, characterized in that: It comprises a containing box (1), a winding mechanism, a liquid supply mechanism and a cleaning mechanism; The winding mechanism comprises a winding roller (7) and a driving motor (5), wherein the winding roller (7) is rotatably mounted inside the containing box (1), the driving motor (5) is fixedly mounted in the inner cavity of the containing box (1), and the output shaft of the driving motor (5) is fixedly connected to the axial end of the winding roller (7); The cleaning mechanism comprises an installation box (2), a cleaning layer (10) and an installation shell (3); the installation shell (3) is fixedly installed inside the accommodating box (1); the installation box (2) is fixedly installed inside the installation shell (3); the cleaning layer (10) is arranged in the inner cavity of the installation box (2); and a gap is arranged in the middle of the cleaning layer (10) for the cable to pass through; The liquid supply mechanism comprises a storage box (17) and a connecting piece (19); the storage box (17) is used to store cleaning liquid; the connecting piece (19) is fixedly installed inside the storage box (17); one end of the connecting piece (19) passes through the storage box (17) and is fixedly connected to the cleaning layer (10).

4. A three-dimensional micro-motion detection device according to claim 3, characterized in that: The inner wall of the installation box (2) is rotatably mounted with a control shaft (11), the radial outer wall of the control shaft (11) is connected with a connecting sleeve (14) via a bidirectional thread, the inner wall of the installation box (2) is fixedly mounted with a guide rod (13), and the outer wall of the guide rod (13) is slidably fitted with the interior of the connecting sleeve (14); A control sleeve (15) for the cable to pass through is fixedly mounted on the outer wall of the connecting sleeve (14).

5. A three-dimensional micro-motion detection device according to claim 4, characterized in that: An extrusion cam (12) is fixedly mounted on the radial outer wall of the control shaft (11), an elastic block (16) is fixedly mounted on the inner wall of the accommodating box (1), a cavity is arranged inside the elastic block (16), and an air inlet hole and an air outlet hole are arranged on the outer wall of the elastic block (16); The air inlet and the air outlet of the elastic block (16) are both provided with a one-way valve; A guide ring (8) is slidably provided on the inner wall of the accommodating box (1), a support plate (23) for clamping cables is fixedly connected to the inner wall of the guide ring (8), and the inner cavity of the guide ring (8) is connected to the exhaust hole of the elastic block (16) through a conduit.

6. A three-dimensional micro-motion detection device according to claim 5, characterized in that: A guide rail (4) is fixedly mounted on the inner wall of the containing box (1), a mounting bracket (6) is slidably mounted on the inner wall of the guide rail (4), and the bottom end of the mounting bracket (6) is fixedly connected to the outer wall of the guide ring (8).

7. A three-dimensional micro-motion detection device according to claim 6, characterized in that: A transmission shaft (18) is rotatably mounted on the inner wall of the storage box (17); A plurality of the connecting plates (19) are provided, and the transmission shaft (18) passes through the plurality of the connecting plates (19). A mounting plate (20) is fixedly mounted on the outer wall of the transmission shaft (18), and an inclined plate (21) and a spiral plate (22) are fixedly mounted on the axial end of the mounting plate (20), and the spiral plate (22) passes through the inclined plate (21).

8. A three-dimensional micro-motion detection device according to claim 7, characterized in that: A transmission cylinder (9) is fixedly mounted on the axial end of the winding roller (7); the transmission cylinder (9) rotates synchronously with the control shaft (11); and the control shaft (11) rotates synchronously with the transmission shaft (18).

9. A three-dimensional micro-motion detection device according to claim 8, characterized in that: A bearing sleeve (24) is fixedly mounted on the inner wall of the containing box (1), a support rod (25) is slidably mounted on the inner wall of the bearing sleeve (24), and the support rod (25) passes through the bottom surface of the containing box (1) and is fixedly mounted with an anti-slip sheet; A control ring (26) is rotatably mounted on the bottom surface of the containing box (1), and the support rod (25) passes through the control ring (26) and is connected to the control ring (26) through internal and external threaded engagement.

10. A three-dimensional micro-motion detection device according to claim 9, characterized in that: A control ratchet (27) is fixedly mounted on the radial outer wall of the control ring (26); an adjusting rod (29) is rotatably mounted on the bottom surface of the accommodating box (1) via a torsion spring; a pressing rod (28) is rotatably mounted on the middle portion of the adjusting rod (29) via a torsion spring; the other end of the pressing rod (28) is engaged with the outer wall of the control ratchet (27).

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