A full-space seismic detection system and detection method for underground tunnels

Abstract

The present invention discloses a full-space seismic detection system and detection method for underground tunnels, including a mine seismograph host, a collection station, a borehole detector, a detonator, a data transmission line, a data transmission bus and a source trigger line; the measuring points are arranged at different spatial positions on the coal seams and the roof and floor plates of the inner and outer sides of the tunnel, the collection station simultaneously collects seismic data at different spatial positions for storage, and the mine seismograph host stores and processes the collected seismic data and displays it in real time into a graph. The seismic data on both sides of the tunnel are processed and interpreted by the amplitude comparison method and the travel time comparison method for reflection wave joint data processing; the seismic data at different vertical heights of the measuring points are processed and interpreted by the data feature analysis method and the abnormal intersection analysis method. The present invention can obtain the full-space seismic data of the underground tunnel, make full use of the limited space of the underground tunnel, more accurately determine the geological anomaly and its properties within the detection range, and provide reliable geological data for the safe production of coal mines.

Description

Technical Field

[0001] The present invention relates to a mine seismic detection system and method, belonging to the technical field of geophysical exploration, and in particular to a mine tunnel full-space seismic detection system and method. Background Art

[0002] Mine seismic detection technology is one of the most effective methods to solve the problem of geological anomaly detection in mine excavation and mining faces, and is suitable for large-scale, long-distance and rapid detection. This technology can not only detect geological structures such as collapse columns and faults in front of the excavation tunnel and inside the mining face in advance, but also detect other geological anomalies such as coal thickness change areas, coal seam fracture zones, and stress concentration areas, thereby providing good geological protection for coal mines. In the prior art, when conducting mining face detection, only a row of blasting points and detector points are arranged on the inner side of the mining face for detection. There is a lack of seismic wave field information at different depths of the coal seam and the roof and floor plates, and the seismic information obtained is very limited. When doing reflection detection within the working face, in addition to the seismic reflection signal coming from the inside of the working face, the reflection signal of the geological anomaly outside the working face is also received by the detector at the same time. During data processing and data interpretation, some false anomalies are often generated, and it is difficult to accurately identify the nature of the geological anomaly in the abnormal area. When doing transmission seismic detection of the working face, P-wave, S-wave, L-wave and R-wave signals can be received inside the coal seam and near the roof and floor plates, but different types of seismic waves have different information such as amplitude and frequency at different depths, and reflect different types of geological anomalies differently. However, previous detection projects only collected seismic data at one depth in the coal seam, and other vertical seismic information was not collected. There was a lack of information constraints during data processing and interpretation, which sometimes caused problems such as false alarms, missed alarms, or large deviations in abnormal interpretation and difficulty in determining the nature of the abnormality. Therefore, the present invention provides a full-space seismic detection system and detection method for underground tunnels, which can realize full-space multi-wave seismic detection in mine tunnels. Exciting and receiving seismic waves at different layers in the tunnel can obtain rich and comprehensive geological information, and can make full use of various seismic wave information such as longitudinal waves, transverse waves and slot waves propagating in coal seams. The information at all levels is integrated to perform multi-parameter constraint interpretation, which can be used for fine detection and property discrimination of geological anomalies. The full-space seismic detection system and method for underground tunnels can give full play to the value of mine earthquakes in the detection field and provide sufficient and reliable guidance information for safe mining of coal mines. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a full-space seismic detection system and detection method for underground tunnels, which fully exert the value of mine earthquakes in the detection field and provide sufficient and reliable guidance information for safe mining of coal mines.

[0004] A full-space seismic detection system for underground tunnels, the detection system includes a mine seismograph host, a collection station, a borehole detector, a detonator, a data transmission bus, a data transmission line and a source trigger line. The mine seismograph host is connected to each collection station through a data transmission bus, and the collection station is connected to each borehole detector through a data transmission line. One end of the detonator is connected to the seismograph host through a source trigger line, and the other end is connected to explosives. Seismic data measurement points are arranged at different spatial positions on the coal seams and the roof and floor plates of the inner and outer sides of the tunnel. The measurement points include detection points and blast points. The explosives are arranged in the blast holes of the blast points, and the borehole detectors are arranged at the detection points. The collection station can simultaneously collect and store multiple channels of seismic data at different spatial positions. The mine seismograph host can simultaneously collect each channel of seismic data and quickly store and process the seismic data collected by each collection station and display them in real time as a map according to a custom data set.

[0005] Furthermore, the in-hole geophone is a three-component geophone.

[0006] Furthermore, the detection points and shot points are arranged alternately.

[0007] Furthermore, the custom data set is implemented in a combination of measurement lines or measurement points.

[0008] Furthermore, the coal seam roof measuring points are arranged 1-5m above the coal seam roof, the coal seam floor measuring points are arranged 1-5m below the coal seam floor, and the inner and outer side measuring points of the tunnel are arranged 1-3m above the coal seam floor.

[0009] A method for full-space seismic detection in an underground tunnel, the detection method comprising the following steps:

[0010] Step 1: Set measuring points at different spatial positions on the coal seams and roof and floor plates inside and outside the tunnel according to the detection purpose and requirements;

[0011] Step 2: Connect the detection system according to the setting of the measuring point, arrange the detection point and the shot point on the measuring point, set the explosive in the shot point, and place the borehole detector in the detection point;

[0012] Step 3, while detonating the explosive, seismic data is collected and processed, and the seismic data processing includes working face reflection seismic data processing and working face transmission and reflection seismic data processing; through the working face reflection seismic data processing, reflection seismic detection result maps of the coal seams on the inner and outer sides of the tunnel are obtained respectively, and the travel time comparison method and amplitude comparison method are used to perform reflection wave joint data processing and interpretation on the collected seismic data on the coal seams on the inner and outer sides of the tunnel to determine the development direction and position of the geological anomaly; through the working face transmission and reflection seismic data processing, the seismic data collected from the coal seams on the inner and outer sides of the tunnel and the measuring points at different vertical heights on the roof and floor are analyzed for transmission and reflection seismic data, and detection result maps at different vertical heights are obtained, and the abnormal ranges are respectively delineated to form key constraint information for the interpretation of the geological anomaly body;

[0013] Step 4: Obtain the comprehensive seismic detection results of the entire tunnel space, interpret the unverified detection anomaly areas, and finally provide accurate development range and characteristic geological information of geological anomalies.

[0014] Furthermore, the working face reflection seismic data processing method in step 3 is: determine whether the reflected waves of the inner side coal seam and the outer side coal seam of the tunnel come from the same side or different sides through the travel time comparison method; if the travel time of the reflection wave event axes is the same and the direction is consistent, then the reflected waves come from the same side; otherwise, they come from both sides; if the reflected waves come from the same side, compare the amplitude of the reflected signal of the inner side coal seam and the outer side coal seam of the tunnel through the amplitude comparison method to determine whether the reflected wave comes from the inner side direction or the outer side direction of the tunnel.

[0015] Furthermore, the working face transmission and reflection seismic data processing method in step 3 is: the seismic data of different vertical heights of the coal seams and the roof and floor plates on the inner and outer sides of the tunnel are jointly processed and interpreted by data feature analysis method and anomaly intersection analysis method, the amplitude characteristics and dispersion characteristics of the seismic data at different vertical heights are analyzed by the data feature analysis method, the abnormal intersection of longitudinal waves, shear waves, trough waves and detection results at different vertical heights is analyzed by the anomaly intersection analysis method, and the abnormal overlapping area and the maximum range of the anomaly are given, the amplitude characteristics, dispersion characteristics of the seismic data at each vertical height and the abnormal intensity and range in the imaging results are analyzed, and the correspondence between the abnormal characteristics of the seismic data at each vertical height and the known geological anomaly bodies is clarified in combination with the geological anomaly body information that has been revealed, so as to form the key constraint information for the interpretation of the geological anomaly body.

[0016] The main host of the mine seismograph aggregates and stores the data collected by each acquisition station through the data transmission bus and displays it in real time as a graph. It can collect various seismic data at the same time, realize the rapid acquisition of multiple data and on-site data quality monitoring in the coal mine, and realize joint data processing and interpretation based on the seismic data of the coal seams on both sides of the tunnel and the seismic data of the roof and floor plates at different vertical heights; the acquisition station can simultaneously collect various seismic data arranged at different vertical heights and axial lengths of the measuring points, and collect and store the data of the coal seams and the roof and floor plates at the same time; the in-hole detectors are respectively arranged at different positions of the coal seams and the roof and floor plates on both sides of the tunnel, and seismic information at different spatial positions of the tunnel is collected at the same time; the seismic data of the seismic data on both sides of the tunnel are processed and interpreted by the reflection wave joint data through the amplitude comparison method and the travel time comparison method; the seismic data of the coal seams and the roof and floor plates at different vertical heights are processed and interpreted by the data feature analysis method and the abnormal intersection analysis method.

[0017] Beneficial effects:

[0018] (1) The present invention has high construction efficiency and rich wave field information because a single acquisition station can simultaneously collect seismic wave field information of coal seams and roof and floor plates at different spatial positions on both sides of the tunnel, and can perform on-site data quality monitoring according to different designed gather modes. Therefore, the present invention can obtain seismic information of the entire tunnel space and can perform on-site quality monitoring according to different gather modes.

[0019] (2) The present invention makes full use of the limited space available in the coal mine tunnel, and simultaneously obtains the seismic wave field information of the coal seams and the roof and floor plates at different spatial positions on both sides of the tunnel, so as to realize the full-space seismic imaging of the mine seismic tunnel. That is, the transmission-reflection combined fine detection is realized inside the working face, and the reflection detection is also carried out on the geological structure outside the working face; the development direction and position of the anomaly are judged by the travel time and amplitude strength relationship of the reflection signal inside and outside the tunnel, thereby reducing the influence of the reflection wave of the anomaly body on both sides of the tunnel on the geological structure detection on the other side; based on the vertical multi-line data and imaging results, the data feature analysis method and the anomaly intersection analysis method are used to form the key constraint information for the interpretation of the geological anomaly body, thereby improving the accuracy of the anomaly range delineation and the accuracy of the anomaly property discrimination. Therefore, the present invention can provide seismic information of different orientations and different vertical heights, and provide a more reliable geophysical basis for accurate geological interpretation such as anomaly delineation and property discrimination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the tunnel full-space seismic detection system of the present invention.

[0021] Figure 2 This is a top view of the arrangement of measuring points for seismic detection on the working face of the present invention.

[0022] Figure 3This is a front view of the arrangement of the shot points and detection points on each side of the working face during seismic detection of the present invention.

[0023] Figure 4 It is the main flow chart of the full-space seismic detection method for tunnels.

[0024] In the figure: 1- mine seismograph host, 2- acquisition station, 3- borehole detector, 4- detonator, 5- data transmission bus, 6- data transmission small line, 7- source trigger line, 8- roof, 9- coal seam, 10- floor, 11- measuring point, 12- inner side of tunnel, 13- outer side of tunnel, 14- blasting point, 15- detection point. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] A full-space seismic detection system for underground tunnels, comprising a mine seismograph host 1, a collection station 2, a borehole geophone 3, a detonator 4, a data transmission bus 5, a data transmission small line 6, and a source trigger line 7; the mine seismograph host 1 is connected to the collection station 2 via the data transmission bus 5; the collection station 2 is connected to the borehole geophone 3 via the data transmission small line 6; one end of the detonator 4 is connected to the seismograph host 1 via the source trigger line 7, and the other end is connected to the explosive in the blast hole, and the detonator 4 is controlled by the seismograph host 1 to perform blasting according to the requirements of the data collection personnel; the measuring point 11 includes a geophone point and a blasting point, which are arranged on the inner side 12 and the outer side 13 of the tunnel; the blasting point 14 and the geophone point 15 are respectively arranged at different positions of the coal seam roof 8, the coal seam 9 and the coal seam floor 10; the borehole geophone 3 is placed at the geophone point 15.

[0027] Before data collection, the observation system design is first carried out. Measuring points 11 are evenly arranged on the inner side wall 12 of the tunnel and the outer side wall 13 of the tunnel. A total of 80 measuring points are arranged with a spacing of 10m between measuring points. Shot points 14 and detection points 15 are arranged alternately. The horizontal spacing of shot points 14 is 20m, and the horizontal spacing of detection points is 20m. Five groups of designed shot points 14 and detection points 15 are arranged vertically on the inner side wall 12 of the tunnel, one group of shot points 14 and detection points 15 are arranged 2m below the coal seam bottom plate 10, and one group of shot points 14 and detection points 15 are arranged 2m below the coal seam bottom plate 10. A group of shot points 14 and detection points 15 are arranged 1m, 2m and 3m above 0 respectively, and a group of shot points 14 and detection points 15 are arranged 2m above the coal seam roof 8; 3 groups of shot points 14 and detection points 15 are arranged on the outer wall 13 of the tunnel, a group of shot points 14 and detection points 15 are arranged 2m below the coal seam bottom 10, a group of shot points 14 and detection points 15 are arranged 2m above the coal seam bottom 10, and a group of shot points 14 and detection points 15 are arranged 2m above the coal seam roof 8; therefore, a total of 8 survey lines are arranged.

[0028] The in-hole geophone 3 is a three-component geophone, which is respectively arranged at the detection points of the coal seam 9, the coal seam roof 8 and the coal seam floor 10 of the designed inner side wall 12 and the outer side wall 13 of the tunnel.

[0029] The acquisition station 2 is arranged near the measuring point 11, and is connected to the borehole detector 3 through a data transmission line 6. It simultaneously collects seismic data from 8 borehole detectors 3 arranged in the coal seam 9, coal seam roof 8 and coal seam floor 10 of the measuring point, a total of 24 seismic data, and simultaneously collects, stores and connects to the mine seismograph host 1 through a data transmission bus 5.

[0030] The mine seismograph host 1 can quickly store the data collected by each collection station and display it in real time in a graph according to the combination of measurement lines or measurement points, thereby realizing on-site quality monitoring of data collection. It can simultaneously collect 1920 channels of seismic data from 80 measurement points (24 channels at each measurement point), thereby realizing rapid collection of multi-channel data.

[0031] The mine seismograph host can quickly store the data collected by each collection station and display it in real time as a graph according to a custom data set, thereby realizing on-site quality monitoring of data collection. It can simultaneously collect various seismic data to realize rapid collection of multiple data and on-site data quality monitoring in coal mines.

[0032] The acquisition station can simultaneously acquire seismic data of measuring points arranged at different spatial positions in the vertical and axial directions, and simultaneously acquire and store data arranged at different spatial positions in the vertical and axial directions of the coal seam and the roof and floor.

[0033] The in-hole geophone is a three-component geophone, which can be arranged at different spatial positions on the coal seams and roof and floor plates on both sides of the tunnel.

[0034] During data collection, blasting points and detection points can be arranged at different spatial positions of the coal seams and roof and floor plates on both sides of the tunnel (inner and outer walls) to collect seismic information at different spatial positions of the tunnel. During specific construction, a reasonable observation system design can be carried out according to the detection purpose and needs.

[0035] When processing and interpreting the reflection seismic data of the working face, the reflection seismic detection results map of the inner and outer walls of the tunnel is obtained respectively, and the seismic data of the coal seams on the outer and inner walls of the tunnel are processed at the same time; when the coal seams on the inner and outer walls of the tunnel show similar reflection characteristics, the reflection wave comes from the inner or outer wall of the tunnel, and the travel time comparison method is used to compare whether the travel time of the reflection wave event axis is the same and whether the direction is consistent, to determine whether the reflection wave comes from the same side or different sides; if the travel time of the reflection wave event axis is the same and the direction is consistent, the reflection wave comes from the same side, otherwise it may come from both sides. If the reflection wave comes from the same side, it is necessary to compare the amplitude of the reflection signal of the inner and outer walls of the tunnel through the amplitude comparison method to determine whether it comes from the inner or outer wall of the tunnel, so as to reduce the influence of the reflection wave of the abnormal body on the inner and outer sides of the tunnel on the geological structure detection on the other side. Since the tunnel has a strong blocking and attenuation effect on the reflected signal of seismic waves, when the geological structure develops inside the working face, the amplitude of the reflected signal on the inner side of the tunnel is relatively strong, and the amplitude of the reflected signal on the outer side of the tunnel is relatively weak; similarly, when the geological structure develops outside the working face, the amplitude of the reflected signal on the outer side of the tunnel is relatively strong, and the amplitude of the reflected signal on the inner side of the tunnel is relatively weak. Through the travel time comparison method and amplitude comparison method, the development direction and position of the anomaly can be determined, thereby reducing the influence of the reflected waves of the abnormal bodies on both sides of the tunnel on the detection of the geological structure on the other side, thereby improving the detection accuracy.

[0036] When processing the transmission and reflection seismic data of the working face, the seismic data of the coal seams and the roof and floor at different vertical heights of the inner and outer sides of the tunnel are used for joint data processing and interpretation through data feature analysis and abnormal intersection analysis. The seismic data at different vertical heights are processed separately to obtain the detection results maps at different vertical heights and delineate the abnormal ranges respectively. The data feature analysis method focuses on analyzing the amplitude characteristics and dispersion characteristics of seismic data at different vertical heights, including the change characteristics of longitudinal waves, shear waves and slot waves. The anomaly intersection analysis method focuses on the anomaly intersection of longitudinal waves, shear waves and trough waves and detection results at different vertical heights, and provides information such as anomaly overlap areas and anomaly maximum ranges; through detailed analysis of the amplitude and dispersion characteristics of seismic data at each vertical height and the anomaly intensity and range in the imaging results, combined with the information of geological anomalies such as faults, collapse columns, and coal body fracture zones that have been revealed, the correspondence between each vertical seismic data feature and the anomaly features in the imaging results and the known geological anomalies is clarified to form key constraint information for the interpretation of geological anomalies; based on the summarized method, other unverified detection anomaly areas are interpreted, and ultimately more accurate geological information such as the development range and characteristics of different types of geological anomalies such as faults, through-layer collapse columns, hidden collapse columns under the floor, coal body fracture zones, and coal thickness changes are provided.

[0037] A method for full-space seismic detection in an underground tunnel, the detection method comprising the following steps:

[0038] Step 1: Set measuring points at different spatial positions on the coal seams and roof and floor plates inside and outside the tunnel according to the detection purpose and requirements;

[0039] Step 2: Connect the detection system according to the setting of the measuring point, arrange the detection point and the shot point on the measuring point, set the explosive in the shot point, and place the borehole detector in the detection point;

[0040] Step 3, while detonating the explosive, seismic data is collected and processed, and the seismic data processing includes working face reflection seismic data processing and working face transmission and reflection seismic data processing; through the working face reflection seismic data processing, reflection seismic detection result maps of the coal seams on the inner and outer sides of the tunnel are obtained respectively, and the travel time comparison method and amplitude comparison method are used to perform reflection wave joint data processing and interpretation on the collected seismic data on the coal seams on the inner and outer sides of the tunnel to determine the development direction and position of the geological anomaly; through the working face transmission and reflection seismic data processing, the seismic data collected from the coal seams on the inner and outer sides of the tunnel and the measuring points at different vertical heights on the roof and floor are analyzed for transmission and reflection seismic data, and detection result maps at different vertical heights are obtained, and the abnormal ranges are respectively delineated to form key constraint information for the interpretation of the geological anomaly body;

[0041] Step 4: Obtain the comprehensive seismic detection results of the entire tunnel space, interpret the unverified detection anomaly areas, and finally provide accurate development range and characteristic geological information of geological anomalies.

[0042] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A detection method using an underground tunnel full-space seismic detection system, characterized in that: The detection system includes a mine seismograph host, a collection station, a borehole detector, a detonator, a data transmission bus, a data transmission line and a source trigger line. The mine seismograph host is connected to each collection station through a data transmission bus, and the collection station is connected to each borehole detector through a data transmission line. One end of the detonator is connected to the seismograph host through a source trigger line, and the other end is connected to the explosive. The seismic detection data collection measurement points are arranged at different spatial positions on the coal seams and the roof and floor plates of the inner and outer sides of the tunnel. The measurement points include detection points and blasting points. The explosives are set in the blasting holes of the blasting points, and the borehole detectors are set at the detection points. The collection station can simultaneously collect and store multiple channels of seismic data at different spatial positions. The mine seismograph host can simultaneously collect each channel of seismic data and quickly store and process the seismic data collected by each collection station and display them in real time according to the custom data set. The in-hole geophone is a three-component geophone; The detection points and shot points are arranged alternately; The custom data set is implemented in a combination of measurement lines or measurement points; The detection method comprises the following steps: Step 1: Set measuring points at different spatial positions on the coal seams and roof and floor plates inside and outside the tunnel according to the detection purpose and requirements; Step 2: Connect the detection system according to the setting of the measuring point, arrange the detection point and the shot point on the measuring point, set the explosive in the shot point, and place the borehole detector in the detection point; The specific arrangement of the measuring points is as follows: measuring points are evenly arranged on the inner wall and the outer wall of the tunnel, with a total of 80 measuring points, with a spacing of 10m between measuring points, and shot points and detection points are arranged alternately, with a lateral spacing of 20m between shot points and detection points; 5 groups of shot points and detection points are arranged vertically on the inner wall of the tunnel, 1 group of shot points and detection points are arranged 2m below the bottom plate of the coal seam, 1 group of shot points and detection points are arranged 1m, 2m and 3m above the bottom plate of the coal seam respectively, and 1 group of shot points and detection points are arranged 2m above the top plate of the coal seam; 3 groups of shot points and detection points are arranged on the outer wall of the tunnel, 1 group of shot points and detection points are arranged 2m below the bottom plate of the coal seam, 1 group of shot points and detection points are arranged 2m above the bottom plate of the coal seam, and 1 group of shot points and detection points are arranged 2m above the top plate of the coal seam, with a total of 8 measuring lines arranged; Step 3, while detonating the explosive, seismic data is collected and processed, and the seismic data processing includes working face reflection seismic data processing and working face transmission and reflection seismic data processing; through the working face reflection seismic data processing, reflection seismic detection result maps of the coal seams on the inner and outer sides of the tunnel are obtained respectively, and the travel time comparison method and amplitude comparison method are used to perform reflection wave joint data processing and interpretation on the collected seismic data on the coal seams on the inner and outer sides of the tunnel to determine the development direction and position of the geological anomaly; through the working face transmission and reflection seismic data processing, the seismic data collected from the coal seams on the inner and outer sides of the tunnel and the measuring points at different vertical heights on the roof and floor are analyzed for transmission and reflection seismic data, and detection result maps at different vertical heights are obtained, and the abnormal ranges are respectively delineated to form key constraint information for the interpretation of the geological anomaly body; Step 4: Obtain the comprehensive seismic detection results of the entire tunnel space, interpret the unverified detection anomaly areas, and finally provide accurate development range and characteristic geological information of geological anomalies; The working face reflection seismic data processing method in step 3 is: determine whether the reflected waves of the inner side coal seam and the outer side coal seam of the tunnel come from the same side or different sides by using the travel time comparison method; if the travel time of the reflected wave event axes is the same and the direction is consistent, the reflected waves come from the same side; otherwise, they come from both sides; if the reflected waves come from the same side, compare the amplitude of the reflected signal of the inner side coal seam and the outer side coal seam of the tunnel by using the amplitude comparison method to determine whether the reflected wave comes from the inner side direction or the outer side direction of the tunnel; The method for processing the transmission and reflection seismic data of the working face in the step 3 is as follows: the seismic data of the coal seams and the roof and floor plates at different vertical heights on the inner and outer sides of the tunnel are jointly processed and interpreted by the data feature analysis method and the anomaly intersection analysis method; the amplitude characteristics and dispersion characteristics of the seismic data at different vertical heights are analyzed by the data feature analysis method; the anomaly intersection of longitudinal waves, transverse waves, trough waves and detection results at different vertical heights is analyzed by the anomaly intersection analysis method to give the anomaly overlapping area and the maximum anomaly range; the amplitude characteristics, dispersion characteristics and anomaly intensity and range of the seismic data at each vertical height are analyzed, and the correspondence between the anomaly characteristics of the seismic data at each vertical height and the anomaly characteristics in the imaging results and the known geological anomaly bodies is clarified in combination with the geological anomaly body information that has been revealed, so as to form the key constraint information for the interpretation of the geological anomaly body.

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