Coal mine tunnel advanced detection device and method

Abstract

The invention discloses a coal mine tunnel advanced detection device and method, and relates to the field of coal mine detection. In the device, a first drilling probe and a second drilling probe are sequentially connected to form a probe structure; the control module controls the head of the probe structure to start to advance inwards from an inlet of a drill hole corresponding to a current roadway through the driving module until the head of the probe structure reaches the bottom of the drill hole, and first data detected by the first drill hole probe and second data detected by the second drill hole probe are obtained; determining geologic features in the detection radius range of the surrounding rock around the drill hole according to the first data, and determining whether a water-containing geologic body is included in the detection radius range of the surrounding rock according to the second data. According to the scheme, through integration and control of different drill hole probes, the geologic features in the detection radius range of the surrounding rock around the drill hole and whether the water-containing geologic body is included or not can be accurately and efficiently determined by combining detected data only through one-time detection propulsion.

Description

Technical Field

[0001] This invention relates to the field of coal mine detection technology, and in particular to a coal mine roadway advanced detection device and method. Background Technology

[0002] Complex geological conditions pose challenges to the deep mining of coal resources, necessitating advanced exploration of coal mine roadways. By probing along the roadway's direction of excavation and at the working face, the presence of hazardous geological structures, water-rich bodies, or water-conducting channels can be determined. Traditional geophysical methods for advanced exploration are conducted at the surface or the surface to be measured. However, due to the complex structures underground or within the measured body, traditional geophysical exploration methods are highly variable and require extensive correction processing. Relying solely on data obtained from these methods to infer information such as lithology and the location of geological bodies is difficult and lacks interpretability. Therefore, borehole geophysical methods, with their higher resolution and precision, are more suitable for advanced exploration of underground coal mine roadways. Specifically, this type of borehole exploration can get closer to deep geological structures and water-bearing bodies, obtaining stronger anomaly signals than those at the surface or the excavation face, thus improving the accuracy and effectiveness of the exploration information. However, current borehole geophysical methods have limited detection capabilities. To analyze the geological structures, water-bearing geological bodies, and lithology around the borehole, multiple explorations are required, which is inefficient and cannot meet the current demand for efficient and precise advanced exploration of coal mine roadways. Summary of the Invention

[0003] In view of this, the present invention provides a coal mine roadway advanced detection device and method. By integrating and controlling different borehole probes, the geological characteristics of the surrounding rock within the detection radius and whether it includes water-bearing geological bodies can be accurately and efficiently determined with only one detection advance.

[0004] To solve the above-mentioned technical problems, this application provides a coal mine roadway advanced detection device, including a control module, a first borehole probe, a second borehole probe and a drive module;

[0005] The first drilling probe and the second drilling probe are connected in sequence to form a probe structure, and the control module, the drive module and the probe structure are connected in sequence.

[0006] The control module is used to control the head of the probe structure to advance inward from the entrance of the borehole corresponding to the current roadway until the head reaches the bottom of the borehole, and to acquire first data obtained by the first borehole probe during the advancement process and second data obtained by the second borehole probe during the advancement process, so as to determine the geological features of the surrounding rock within the detection radius of the borehole based on the first data, and to determine whether the surrounding rock within the detection radius includes a water-bearing geological body based on the second data.

[0007] Furthermore, the operating frequency range of the first borehole probe during detection does not overlap with the operating frequency range of the second borehole probe during detection.

[0008] Furthermore, the first drilling probe includes a first storage module, which is used to store the first data obtained by the first drilling probe during the drilling process;

[0009] The second borehole probe includes a second storage module, which is used to store second data obtained by the second borehole probe during the drilling process.

[0010] Furthermore, the coal mine roadway advanced detection device also includes a third borehole probe for detecting the actual trajectory of the borehole during the advancement process;

[0011] The first drilling probe, the second drilling probe, and the third drilling probe are connected in sequence to form a probe structure.

[0012] Furthermore, the third borehole probe is a borehole gamma trajectory detection probe.

[0013] Furthermore, the first borehole probe includes a borehole surrounding rock analysis and imaging probe and a borehole radar detection probe; the second borehole probe includes a borehole pseudo-random excitation polarization detection probe and a borehole transient electromagnetic detection probe.

[0014] The borehole surrounding rock analysis and imaging probe, the borehole pseudo-random excitation polarization detection probe, the borehole radar detection probe, the borehole transient electromagnetic detection probe, and the borehole gamma trajectory detection probe are connected in sequence to form a probe structure.

[0015] To address the aforementioned technical problems, this application also provides a method for advanced detection of coal mine roadways, applied to the control module of the advanced detection device for coal mine roadways as described above. The method for advanced detection of coal mine roadways includes:

[0016] S11: The drive module in the coal mine roadway advanced detection device controls the head of the probe structure in the coal mine roadway advanced detection device to advance inward from the entrance of the borehole corresponding to the current roadway until the head reaches the bottom of the borehole.

[0017] S12: Obtain first data obtained by the first drilling probe in the probe structure during the propulsion process and second data obtained by the second drilling probe in the probe structure during the propulsion process;

[0018] S13: Determine the geological features within the detection radius of the surrounding rock around the borehole based on the first data; determine whether the detection radius of the surrounding rock includes a water-bearing geological body based on the second data.

[0019] Furthermore, prior to step S11, the following steps are also included:

[0020] Configure the operating parameters of the first drilling probe and start the first drilling probe after time synchronization;

[0021] After configuring the operating parameters of the second borehole probe and synchronizing the time, the second borehole probe is started.

[0022] Furthermore, the first drilling probe includes a first storage module, and the second drilling probe includes a second storage module;

[0023] After the head of the probe structure reaches the bottom of the borehole, it also includes:

[0024] The drive module controls the probe structure to exit the borehole;

[0025] Step S12 includes:

[0026] The first data stored in the first storage module of the first borehole probe and the second data stored in the second storage module of the second borehole probe are obtained through wired communication.

[0027] Furthermore, the first data is the detection data obtained by the first borehole probe at each first working time point, and the second data is the detection data obtained by the second borehole probe at each second working time point;

[0028] The drive module of the coal mine roadway advanced detection device includes a drive motor and a drill rod, and the control module, the drive motor, the drill rod and the probe structure are connected in sequence.

[0029] Step S11 includes:

[0030] The drive motor controls the drill rod to advance into the borehole corresponding to the current roadway, so as to drive the head of the probe structure to advance into the borehole from the entrance of the borehole, and record the relationship between time and drill rod advance distance.

[0031] Before step S13, the following are also included:

[0032] The first and second data are calibrated and organized according to the time-drill rod advance distance correspondence to obtain first and second data corresponding to different drilling depths.

[0033] This application provides a coal mine roadway advanced detection device and method. The device includes a control module, a first borehole probe, a second borehole probe, and a drive module. The first and second borehole probes are connected sequentially to form a probe structure, and the control module, drive module, and probe structure are connected sequentially. The control module controls the head of the probe structure to advance inward from the entrance of the corresponding borehole in the current roadway until the head reaches the bottom of the borehole. It acquires first data obtained by the first borehole probe during its advancement and second data obtained by the second borehole probe during its advancement. Based on the first data, it determines the geological features within the detection radius of the surrounding rock around the borehole, and based on the second data, it determines whether the detection radius includes a water-bearing geological body. Therefore, this solution, through the integration and control of different borehole probes, requires only one detection advance to combine the detected data, accurately and efficiently determining the geological features within the detection radius of the surrounding rock around the borehole and whether it includes a water-bearing geological body, which is beneficial for practical applications.

[0034] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0036] Figure 1 This is a schematic diagram of the structure of a coal mine roadway advanced detection device provided by the present invention;

[0037] Figure 2 A schematic diagram of another advanced detection device for coal mine roadways provided by the present invention;

[0038] Figure 3A schematic diagram of the structure of a control module provided by the present invention;

[0039] Figure 4 A schematic diagram of the structure of a borehole surrounding rock analysis imaging probe provided by the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of a borehole pseudo-random excitation polarization detection probe provided by the present invention;

[0041] Figure 6 This is a schematic diagram of the structure of a borehole radar detection probe provided by the present invention;

[0042] Figure 7 A schematic diagram of the structure of a borehole transient electromagnetic detection probe provided by the present invention;

[0043] Figure 8 A schematic diagram of the structure of a borehole gamma trajectory detection probe provided by the present invention;

[0044] Figure 9 The flowchart of a method for advanced detection of coal mine roadways provided by the present invention. Detailed Implementation

[0045] The core of this invention is to provide a coal mine roadway advanced detection device and method. By integrating and controlling different borehole probes, the geological characteristics of the surrounding rock within the detection radius and whether it includes water-bearing geological bodies can be accurately and efficiently determined with only one detection advance.

[0046] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0047] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0048] Please refer to Figure 1 and Figure 2 , Figure 1This is a schematic diagram of the structure of a coal mine roadway advanced detection device provided by the present invention. Figure 2 This is a schematic diagram of another advanced detection device for coal mine roadways provided by the present invention.

[0049] The advanced detection device for coal mine roadways includes a control module 1, a first borehole probe 211, a second borehole probe 212, and a drive module 214.

[0050] The first drilling probe 211 and the second drilling probe 212 are connected in sequence to form a probe structure 213. The control module 1, the drive module 214 and the probe structure 213 are connected in sequence.

[0051] The control module 1 is used to control the head of the probe structure 213 to advance from the entrance of the borehole 9 corresponding to the current tunnel 111 inward until the head reaches the bottom of the borehole 9 through the drive module 214. It acquires the first data obtained by the first borehole probe 211 during the advancement process and the second data obtained by the second borehole probe 212 during the advancement process. Based on the first data, it determines the geological features within the detection radius of the surrounding rock 10 around the borehole 9, and based on the second data, it determines whether the detection radius of the surrounding rock 10 includes a water-bearing geological body.

[0052] In this embodiment, a borehole 9 needs to be pre-drilled in the current tunnel 111. The drilling depth can be flexibly set according to actual needs so that the subsequent probe structure 213 can penetrate the borehole 9 to detect the geological features within the detection radius of the surrounding rock 10 around the borehole 9 and whether it includes water-bearing geological bodies. Specifically, the control module 1 here can be any module capable of realizing the above-mentioned control and analysis functions, and the processor can be set inside the tunnel 111, such as... Figure 2 As shown, please also refer to Figure 3 , Figure 3 The present invention provides a schematic diagram of the structure of a control module 1, which may include a central processing unit 11, a memory 12, a human-machine interaction device 13, a communication port 14 and a system bus 15. The central processing unit 11 can communicate with the drive module 214, the first drilling probe 211 and the second drilling probe 212 through the system bus 15 and the communication port 14.

[0053] like Figure 2 As shown, the drive module 214 here may include a drive motor 8 and a drill rod 7 (the drill rod 7 may specifically be a metal drill rod). The control module 1, drive motor 8, drill rod 7 and probe structure 213 are connected in sequence. By controlling the drill rod 7 to move into the borehole 9 through the drive motor 8, the probe structure 213 can be moved synchronously.

[0054] The first borehole probe 211 is used to detect geological features within the detection radius of the surrounding rock 10 around the borehole 9. These geological features include lithological features and / or geological structural features. The first borehole probe 211 can autonomously perform detection work after configuration. The second borehole probe 212 is used to detect whether the surrounding rock 10 around the borehole 9 includes a water-bearing geological body within its detection radius. The second borehole probe 212 can autonomously perform detection work after configuration. Furthermore, in some embodiments, the operating frequency range of the first borehole probe 211 during detection does not overlap with the operating frequency range of the second borehole probe 212 during detection, to ensure that the probes do not interfere with each other during detection.

[0055] In summary, this application provides a coal mine roadway advanced detection device. By integrating and controlling different borehole probes, it can accurately and efficiently determine the geological characteristics and whether water-bearing geological bodies are included within the detection radius of the surrounding rock around the borehole by combining the detected data with a single detection advance. This is beneficial for detecting whether there are harmful geological structures, water-rich bodies, or water-conducting channels ahead, providing detailed detection data for the safe tunneling of subsequent coal mines, and is conducive to practical application.

[0056] In some embodiments, the first drilling probe 211 includes a first storage module, which is used to store first data obtained by the first drilling probe 211 during the drilling process;

[0057] The second borehole probe 212 includes a second storage module, which is used to store second data obtained by the second borehole probe 212 during the drilling process.

[0058] Specifically, the above configuration allows the first drilling probe 211 and the second drilling probe 212 to independently complete the detection work and reliably store the detected data. This facilitates the subsequent exit of the probe structure 213 after its head is pushed to the bottom of the borehole 9, and its communication connection with the control module 1 to complete the acquisition and analysis of data.

[0059] In some embodiments, the coal mine roadway advance detection device further includes a third borehole probe for detecting the actual trajectory of borehole 9 during the advance process;

[0060] The first drilling probe 211, the second drilling probe 212 and the third drilling probe are connected in sequence to form the probe structure 213.

[0061] Specifically, considering that in practical applications, borehole 9 may be bent or tilted to a certain extent due to geological conditions such as uneven distribution of rock hardness and faults, and is not an ideal straight line, the setting of the third borehole probe is beneficial to grasp the actual trajectory of borehole 9 and to provide a spatial positioning reference for the data detected by the first borehole probe 211 and the second borehole probe 212.

[0062] More specifically, the third borehole probe is the borehole gamma trajectory detection probe 6.

[0063] In detail, the borehole gamma trajectory detection probe 6 can detect the gamma value within a range of 0 to 0.5 meters of the surrounding rock 10 around the borehole 9 and the actual trajectory of the borehole 9. The detection of the actual trajectory is helpful in accurately anchoring the data detected by the first borehole probe 211 and the second borehole probe 212 to the real stratigraphic space. In addition, the gamma value can be used for lithological analysis of the surrounding rock 10 around the borehole 9.

[0064] In some embodiments, the first borehole probe 211 includes a borehole surrounding rock analysis and imaging probe 2 and a borehole radar detection probe 4; the second borehole probe 212 includes a borehole pseudo-random excitation polarization detection probe 3 and a borehole transient electromagnetic detection probe 5.

[0065] The borehole surrounding rock analysis imaging probe 2, the borehole pseudo-random excitation polarization detection probe 3, the borehole radar detection probe 4, the borehole transient electromagnetic detection probe 5, and the borehole gamma trajectory detection probe 6 are connected in sequence to form probe structure 213.

[0066] Specifically, such as Figure 2The diagram illustrates the setup of the five probes. The borehole surrounding rock analysis imaging probe 2 is used for optical imaging of the surrounding rock 10 around borehole 9. The borehole radar detection probe 4 is used to detect the geological structure within a 0-30 meter range of the surrounding rock 10 around borehole 9, such as faults, goafs, and collapse columns. More specifically, by combining the first data (i.e., image data) acquired by the borehole surrounding rock analysis imaging probe 2, the first data acquired by the borehole radar detection probe 4, and the first data (here referring to gamma values) acquired by the borehole gamma trajectory detection probe 6, the geological features within the detection radius (i.e., 0-30 meters) of the surrounding rock 10 around borehole 9 can be accurately determined. Specifically, regarding the geological structure features, the data acquired by the borehole radar detection probe 4 can be analyzed using corresponding professional software. Regarding lithological features, considering the borehole surrounding rock analysis imaging probe... When borehole 9 is dry or has clear water, probe 2 can perform good analysis and imaging of the surrounding rock 10. However, the water in borehole 9 may be turbid and unclear. In this case, borehole gamma trajectory detection probe 6 can perform auxiliary analysis of lithology. Therefore, the analysis of surrounding rock 10 by borehole surrounding rock detection probe 2 and borehole gamma trajectory detection probe 6 are combined. The two complement each other and verify each other. That is, borehole surrounding rock 10 detection probe 2 identifies lithology through optical images (optical images can be processed by corresponding professional software to identify lithology), and gamma values ​​are used to assist in verification and refine lithology judgment through radioactive characteristics (gamma values ​​can be processed by corresponding professional software to identify lithology), so as to achieve complementary lithology analysis. It is also understandable that the results of this lithology analysis can also provide analysis information for borehole radar detection probe 4, borehole pseudo-random excitation polarization detection probe 3 and borehole transient electromagnetic detection probe 5.

[0067] The borehole transient electromagnetic detection probe 5 is used to detect the formation resistivity information of the surrounding rock 10 within a range of 3 to 30 meters around the borehole 9. Water-bearing geological bodies have lower resistivity than coal-rock bodies; therefore, based on this formation resistivity information, the presence of water-bearing geological bodies within the 3 to 30 meter range of the surrounding rock 10 can be determined using corresponding professional software. The borehole pseudo-random excitation polarization detection probe 3 is used to detect the formation resistivity and excitation polarization information of the surrounding rock 10 within a range of 0 to 3 meters around the borehole 9. Based on this formation resistivity information, the presence of water-bearing geological bodies within the 0 to 3 meter range of the surrounding rock 10 can be determined using corresponding professional software. This, combined with the borehole transient electromagnetic detection... By combining the second data detected by probe 5 (i.e., the formation resistivity information within the range of 3 to 30 meters) with the second data detected by borehole pseudo-random excitation polarization probe 3 (i.e., the formation resistivity information within the range of 0 to 3 meters), it is possible to accurately determine whether the surrounding rock 10 around borehole 9 includes water-bearing geological bodies within the detection radius range (i.e., the range of 0 to 30 meters). It can be seen that this setup utilizes the good detection effect of borehole pseudo-random excitation polarization probe 3 in the near-hole section to compensate for the detection blind zone in the 0 to 3 meter range of the near-hole section caused by the transmission turn-off delay of borehole transient electromagnetic probe 5, which is conducive to achieving complete detection of water-bearing geological bodies within the range of 0 to 30 meters.

[0068] It is evident that by setting up the above five types of borehole probes, the geological characteristics of the surrounding rock 10 within a range of 0 to 30 meters around borehole 9 and whether it includes water-bearing geological bodies can be accurately, efficiently, and completely determined with a single detection, which is beneficial for providing better safety assurance for coal mine geological exploration.

[0069] It should also be noted that the five borehole probes mentioned in this application are all probes that can autonomously perform detection work after configuration. Please refer to... Figure 4 , Figure 4 This is a schematic diagram of the structure of a borehole surrounding rock analysis imaging probe provided by the present invention. The borehole surrounding rock analysis imaging probe 2 includes an optical camera 21, an imaging acquisition circuit 22, a three-dimensional electronic compass 23, a memory 24, a microcontroller 25, a communication port 26, and a battery 27. The control module 1 can communicate with the communication port 26 of the borehole surrounding rock analysis imaging probe 2 through the communication port 14 to configure the working mode of the borehole surrounding rock analysis imaging probe 2 or to acquire the data stored in the memory 24 of the borehole surrounding rock analysis imaging probe 2. The battery 27 is used to power the memory 24, the microcontroller 25, the three-dimensional electronic compass 23, and the imaging acquisition circuit 22. The microcontroller 25 controls the imaging acquisition circuit 22 and the optical camera 21 to perform optical imaging and store the imaging results in the memory 24, as well as store the probe orientation data measured by the three-dimensional electronic compass 23 in the memory 24.

[0070] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the structure of a borehole pseudo-random excitation polarization detection probe 3 provided by the present invention. The borehole pseudo-random excitation polarization detection probe 3 includes a receiving electrode 31, a transmitting electrode 32, a pseudo-random receiving circuit 33, a pseudo-random transmitting circuit 34, a microcontroller 35, a memory 36, a communication port 37, and a battery 38. The control module 1 can communicate with the communication port 37 of the borehole pseudo-random excitation polarization detection probe 3 through the communication port 14 to configure the working settings and start-up of the borehole pseudo-random excitation polarization detection probe 3, or to obtain the data stored in the memory 36 of the borehole pseudo-random excitation polarization detection probe 3. The battery 38 is used to power the memory 36, the microcontroller 35, the pseudo-random transmitting circuit 34, and the pseudo-random receiving circuit 33. The microcontroller 35 is used to control the pseudo-random transmitting circuit 34 to transmit pseudo-random current codes through the transmitting electrode 32, and to control the pseudo-random receiving circuit 33 to receive the pseudo-random current codes of the formation through the receiving electrode 31, and to process and store the received pseudo-random current codes in the memory 36.

[0071] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of a borehole radar detection probe provided by the present invention. The borehole radar detection probe 4 includes a transmitting antenna 41, a receiving antenna 42, a transmitting circuit 43, a receiving circuit 44, an inertial navigation system 45, a microcontroller 46, a memory 47, a communication port 48, and a battery 49. The control module 1 can communicate with the communication port 37 of the borehole radar detection probe 4 through the communication port 14 to configure the working settings and start-up of the borehole radar detection probe 4, or to obtain the data stored in the memory 47 of the borehole radar detection probe 4. The battery 49 is used to power the microcontroller 46, the inertial navigation system 45, the transmitting circuit 43, and the receiving circuit 44. The microcontroller 46 and the inertial navigation system 45 control the transmitting circuit 43 to transmit radar signals through the transmitting antenna 41. The microcontroller 46 controls the receiving circuit 44 to receive radar signals from the strata through the receiving antenna 42. Then, the received radar signals and the data collected by the inertial navigation system 45 are stored together in the memory 47.

[0072] Please refer to Figure 7 , Figure 7This is a schematic diagram of the structure of a borehole transient electromagnetic detection probe 5 provided by the present invention. The borehole transient electromagnetic detection probe 5 includes a receiving coil 51, a transmitting coil 52, a receiving circuit 53, a transmitting circuit 54, a three-dimensional electronic compass 55, a microcontroller 56, a memory 57, a communication port 58, and a battery 59. The control module 1 can communicate with the communication port 58 of the borehole transient electromagnetic detection probe 5 through the communication port 14 to configure the working settings and start-up of the borehole transient electromagnetic detection probe 5, or to obtain the data stored in the memory 57 of the borehole transient electromagnetic detection probe 5. The battery 59 is used to power the microcontroller 56, the three-dimensional electronic compass 55, the transmitting circuit 54, and the receiving circuit 53. The microcontroller 56 controls the transmitting circuit 54 to transmit transient electromagnetic signals through the transmitting coil 52. The microcontroller 56 controls the receiving circuit 53 to receive transient electromagnetic signals from the formation through the receiving coil 51. Then, the received transient electromagnetic signals and the data collected by the three-dimensional electronic compass 55 are stored together in the memory 57.

[0073] Please refer to Figure 8 , Figure 8 This is a schematic diagram of the structure of a borehole gamma trajectory detection probe 6 provided by the present invention. The borehole gamma trajectory detection probe 6 includes a gamma sensor 61, a receiving circuit 62, a three-dimensional electronic compass 63, an inertial navigation system 64, a microcontroller 65, a memory 66, a communication port 67, and a battery 68. The control module 1 can communicate with the communication port 67 of the borehole gamma trajectory detection probe 6 through the communication port 14 to configure the working settings and start-up of the borehole gamma trajectory detection probe 6, or to acquire the data stored in the memory 66 of the borehole gamma trajectory detection probe 6. The battery 68 is used to power the microcontroller 65, the inertial navigation system 64, the three-dimensional electronic compass 63, and the receiving circuit 62. The microcontroller 65 and the inertial navigation system 64 control the receiving circuit 62 to receive the data from the gamma sensor 61 and the three-dimensional electronic compass 63, and then store the received gamma signal, the data from the three-dimensional electronic compass 63, and the data collected by the inertial navigation system 64 into the memory 66.

[0074] In addition, the transmission and reception signal frequency range of the borehole radar detection probe 4 is 30MHz to 200MHz, the transmission and reception signal frequency range of the borehole transient electromagnetic detection probe 5 is 200Hz to 30KHz, and the transmission and reception signal frequency range of the borehole pseudo-random excitation polarization detection probe 3 is 10Hz to 100Hz. Their signal frequencies do not overlap, thus avoiding the problem of mutual interference.

[0075] In practical applications, the five probes are arranged according to... Figure 2The five probes are set up sequentially as shown, and their operation is set up and started through the communication port. This allows the probes to automatically detect and store the corresponding data in their respective memory without the need for control via cable control lines during subsequent probe advancement. When the head of the probe structure 213 reaches the bottom of the borehole, the detection is considered complete, and the entire probe structure 213 is withdrawn from the borehole. The control module 1 is then connected to each probe for data acquisition, thereby obtaining the detection results for the full borehole depth.

[0076] Please refer to Figure 9 , Figure 9 The flowchart of a method for advanced detection of coal mine roadways provided by the present invention.

[0077] The method for advanced detection of coal mine roadways is applied to the control module 1 of the advanced detection device for coal mine roadways as described above. The method includes:

[0078] S11: The drive module 214 in the coal mine roadway advance detection device controls the head of the probe structure 213 in the coal mine roadway advance detection device to advance inward from the entrance of the borehole 9 corresponding to the current roadway 111 until the head reaches the bottom of the borehole 9.

[0079] S12: Obtain the first data obtained by the first drilling probe 211 in the probe structure 213 during the propulsion process and the second data obtained by the second drilling probe 212 in the probe structure 213 during the propulsion process;

[0080] S13: Determine the geological features within the detection radius of the surrounding rock 10 around borehole 9 based on the first data; determine whether the detection radius of the surrounding rock 10 includes a water-bearing geological body based on the second data.

[0081] For a description of the coal mine roadway advanced detection method provided in this application, please refer to the above-described embodiment of the coal mine roadway advanced detection device; it will not be repeated here.

[0082] In some embodiments, prior to step S11, the method further includes:

[0083] After configuring the operating parameters of the first drilling probe 211 and synchronizing the time, the first drilling probe 211 is started.

[0084] After configuring the operating parameters of the second borehole probe 212 and synchronizing the time, the second borehole probe 212 is started.

[0085] Specifically, the operating parameters here include, but are not limited to, sampling frequency, etc., and are not specifically limited here. They can be flexibly configured according to actual application needs so that the first drilling probe 211 and the second drilling probe 212 can autonomously complete the detection during the advancement inside the drill hole 9 after configuration. Of course, the operating parameters of the third drilling probe also need to be configured and the third drilling probe is started after time synchronization.

[0086] In addition, the time synchronization here is intended to keep the control module 1, the first borehole probe 211, the second borehole probe 212 (and the third borehole probe) in the same time to ensure the accuracy of subsequent data processing and analysis.

[0087] In some embodiments, the first drilling probe 211 includes a first storage module, and the second drilling probe 212 includes a second storage module;

[0088] After the head of probe structure 213 reaches the bottom of borehole 9, it also includes:

[0089] The probe structure 213 is controlled to exit the borehole 9 by the drive module 214;

[0090] Step S12 includes:

[0091] The first data stored in the first storage module of the first borehole probe 211 and the second data stored in the second storage module of the second borehole probe 212 are obtained through wired communication.

[0092] Specifically, considering the potential for strong attenuation of wireless signals in the drilling environment, after the probe structure 213 is controlled by the drive module 214 to exit the borehole 9, reliable transmission of the first and second data is achieved via wired communication connected by a cable. Of course, if the wireless signal in the tunnel 111 meets the requirements for wireless communication transmission after the probe structure 213 exits the borehole 9, wireless communication can also be used for data transmission; no special limitations are imposed here.

[0093] In some embodiments, the first data is the detection data obtained by the first borehole probe 211 when it performs detection at each first working time point, and the second data is the detection data obtained by the second borehole probe 212 when it performs detection at each second working time point.

[0094] The drive module 214 in the advanced detection device for coal mine roadways includes a drive motor 8 and a drill rod 7. The control module 1, drive motor 8, drill rod 7 and probe structure 213 are connected in sequence.

[0095] Step S11 includes:

[0096] The drive motor 8 controls the drill rod 7 to advance into the borehole 9 corresponding to the current roadway 111, so as to drive the head of the probe structure 213 to advance from the entrance of the borehole 9 into the interior of the borehole 9, and record the relationship between time and drill rod advance distance.

[0097] Before step S13, the following are also included:

[0098] The first and second data are calibrated and organized according to the time-drill pipe advance distance correspondence to obtain the first and second data corresponding to different drilling depths.

[0099] Specifically, the time-drill rod advance distance correspondence reflects the actual advance depth of probe structure 213 in borehole 9 at different time points, which is beneficial for subsequent data calibration, organization and matching; the first data is the detection data corresponding to each first working time point, and the second data is the detection data corresponding to each second working time point. Calibration and matching are performed based on time, which can unify the originally scattered detection data to the actual depth of borehole 9. It also makes it easier for the detection results of different probes, such as lithology, geological structure and water-bearing conditions at the same depth, to be compared and cross-verified in spatial location, and finally obtain the geological characteristics of the surrounding rock 10 around borehole 9 within the detection radius and whether it includes water-bearing geological bodies.

[0100] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. Relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0101] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal mine roadway advanced detection device, characterized in that, Includes a control module, a first drilling probe, a second drilling probe, and a drive module; The first drilling probe and the second drilling probe are connected in sequence to form a probe structure, and the control module, the drive module and the probe structure are connected in sequence. The control module is used to control the head of the probe structure to advance inward from the entrance of the borehole corresponding to the current roadway until the head reaches the bottom of the borehole, and to acquire first data obtained by the first borehole probe during the advancement process and second data obtained by the second borehole probe during the advancement process, so as to determine the geological features of the surrounding rock within the detection radius of the borehole based on the first data, and to determine whether the surrounding rock within the detection radius includes a water-bearing geological body based on the second data.

2. The coal mine roadway advanced detection device as described in claim 1, characterized in that, The operating frequency range of the first borehole probe during detection does not overlap with the operating frequency range of the second borehole probe during detection.

3. The coal mine roadway advanced detection device as described in claim 1, characterized in that, The first drilling probe includes a first storage module, which is used to store the first data obtained by the first drilling probe during the drilling process. The second borehole probe includes a second storage module, which is used to store second data obtained by the second borehole probe during the drilling process.

4. The coal mine roadway advanced detection device as described in any one of claims 1 to 3, characterized in that, The coal mine roadway advanced detection device also includes a third borehole probe for detecting the actual trajectory of the borehole during the advancement process. The first drilling probe, the second drilling probe, and the third drilling probe are connected in sequence to form a probe structure.

5. The coal mine roadway advanced detection device as described in claim 4, characterized in that, The third borehole probe is a borehole gamma trajectory detection probe.

6. The coal mine roadway advanced detection device as described in claim 5, characterized in that, The first borehole probe includes a borehole surrounding rock analysis and imaging probe and a borehole radar detection probe; the second borehole probe includes a borehole pseudo-random excitation polarization detection probe and a borehole transient electromagnetic detection probe. The borehole surrounding rock analysis and imaging probe, the borehole pseudo-random excitation polarization detection probe, the borehole radar detection probe, the borehole transient electromagnetic detection probe, and the borehole gamma trajectory detection probe are connected in sequence to form a probe structure.

7. A method for advanced detection of coal mine roadways, characterized in that, The control module is applied in the coal mine roadway advanced detection device as described in any one of claims 1 to 6, and the coal mine roadway advanced detection method includes: S11: The drive module in the coal mine roadway advanced detection device controls the head of the probe structure in the coal mine roadway advanced detection device to advance inward from the entrance of the borehole corresponding to the current roadway until the head reaches the bottom of the borehole. S12: Obtain first data obtained by the first drilling probe in the probe structure during the propulsion process and second data obtained by the second drilling probe in the probe structure during the propulsion process; S13: Determine the geological features within the detection radius of the surrounding rock around the borehole based on the first data; determine whether the detection radius of the surrounding rock includes a water-bearing geological body based on the second data.

8. The method for advanced detection of coal mine roadways as described in claim 7, characterized in that, Before step S11, the following are also included: Configure the operating parameters of the first drilling probe and start the first drilling probe after time synchronization; After configuring the operating parameters of the second borehole probe and synchronizing the time, the second borehole probe is started.

9. The method for advanced detection of coal mine roadways as described in claim 8, characterized in that, The first drilling probe includes a first storage module, and the second drilling probe includes a second storage module; After the head of the probe structure reaches the bottom of the borehole, it also includes: The drive module controls the probe structure to exit the borehole; Step S12 includes: The first data stored in the first storage module of the first borehole probe and the second data stored in the second storage module of the second borehole probe are obtained through wired communication.

10. The method for advanced detection of coal mine roadways as described in claim 8, characterized in that, The first data is the detection data obtained by the first borehole probe at each first working time point, and the second data is the detection data obtained by the second borehole probe at each second working time point; The drive module of the coal mine roadway advanced detection device includes a drive motor and a drill rod, and the control module, the drive motor, the drill rod and the probe structure are connected in sequence. Step S11 includes: The drive motor controls the drill rod to advance into the borehole corresponding to the current roadway, so as to drive the head of the probe structure to advance from the entrance of the borehole into the interior of the borehole, and record the relationship between time and drill rod advance distance; Before step S13, the following are also included: The first and second data are calibrated and organized according to the time-drill rod advance distance correspondence to obtain first and second data corresponding to different drilling depths.

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