Coal mine tunnel geological exploration device

Abstract

The utility model discloses a coal mine tunnel geological exploration device which comprises a mobile vehicle body, a coal mine tunnel inner cavity electromagnetic exploration unit and an outer shielding shell, in the using process of the coal mine tunnel geological exploration device, a horizontal probe is installed in a horizontal transmitting tube, and the horizontal transmitting tube can effectively reduce external interference before signals are released; the horizontal probes which are annularly and uniformly distributed effectively transmit signals, and in order to reduce interference of external metal objects in the horizontal direction, the magnetic detection module installed on the surface of the horizontal transmitting tube can detect the metal objects in the surrounding area, so that the influence of the metal objects in the surveying area on surveying data in the horizontal direction is effectively reduced; due to the fact that the included angles formed by the first launcher, the second launcher and the third launcher change, the signal launching position interval is increased, the position and the water yield property of the geological anomalous body in front can be effectively deduced through multi-angle observation, the problem that the signal position is single in the surveying process is solved, and roadway geological surveying data collection is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic exploration technology for coal mine roadways, specifically a geological exploration device for coal mine roadways. Background Technology

[0002] Rock tunnel exploration requires a focus on the stability of the surrounding rock, its structural features, and hydrogeological conditions. Its methodology encompasses both direct exploration and indirect geophysical techniques, specifically: direct exploration methods and indirect geophysical techniques. Indirect geophysical techniques include: Transient Electromagnetic Method (TEM), which uses electromagnetic induction to detect the water-bearing capacity of the roof and floor of the rock tunnel and concealed aquifers, suitable for hydrogeological condition assessment; High-Density Electrical Resistivity Method (HIR), which utilizes resistivity differences to identify faults, dikes, and other structures, showing significant effectiveness in detecting steeply dipping geological bodies; and Seismic Wave Method, which analyzes seismic wave reflection signals to locate rock strata interfaces and fracture zones, suitable for large-scale structural exploration. Transient Electromagnetic Method is frequently used in coal mine tunnel exploration, where measuring points are set on both sides and end faces of the tunnel excavation head to receive electromagnetic signals and achieve the exploration objective.

[0003] In the prior art, publication number "CN221443765U" discloses a geological exploration device for coal mine roadways, which relates to the field of geological exploration equipment technology. The device includes a base with a through hole in the center. A handle, multiple pulleys, a lifting mechanism, an adjusting mechanism, and a detector are mounted on the base. The pulleys are respectively located at the bottom of the base. The handle is rotatably mounted on the base. The lifting mechanism is located on both sides of the through hole. The adjusting mechanism is fixedly mounted on the lifting mechanism. The adjusting mechanism drives the detector to adjust its angle. This allows for effective angle adjustment of the detector, facilitating accurate angle detection of the geology in different geographical environments. The lifting mechanism also helps to raise the detector, preventing collisions with ground protrusions during the process and facilitating manual cleaning of the bottom of the detector.

[0004] However, existing technologies still have significant shortcomings, such as:

[0005] During the exploration process, it is necessary to arrange multiple survey and receiving points to achieve sufficient data collection. The aforementioned devices and existing technologies lack a method for arranging survey points for specific angles. Similarly, the transmitting points need to be synchronously configured with receiving points according to specific exploration requirements. Simply relying on mechanical adjustment mechanisms cannot guarantee precise control of the transmitting angle. At the same time, the mechanical control response speed cannot meet the needs of rapid electromagnetic signal collection, thus affecting the collection effect of actual electromagnetic survey data inside coal mine roadways. Utility Model Content

[0006] The purpose of this invention is to provide a geological exploration device for coal mine roadways to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a geological exploration device for coal mine roadways, comprising a mobile vehicle body, an electromagnetic exploration unit for the inner cavity of the coal mine roadway, and an outer shielding shell. The outer shielding shell is disposed on the top area of ​​the mobile vehicle body, and the electromagnetic exploration unit for the inner cavity of the coal mine roadway is disposed inside the outer shielding shell, for realizing geological exploration and detection at multiple locations inside the coal mine roadway.

[0008] Preferably, the electromagnetic survey unit for the inner cavity of the coal mine roadway includes a horizontal survey section, which includes a horizontal transmitting tube. The horizontal transmitting tube is configured in two sets, and the two sets of horizontal transmitting tubes are installed through the surface of the outer shield shell. The two sets of horizontal transmitting tubes are symmetrically arranged, and horizontal probes are arranged in a ring inside the inner cavity of the horizontal transmitting tube.

[0009] Preferably, the electromagnetic survey unit for the inner cavity of the coal mine roadway further includes a vertical survey unit, which includes a fixed base. The fixed base is installed at the bottom of the inner cavity of the outer shield shell. A transmitter is installed at an angle on the surface of the fixed base. The angle between the transmitter and the fixed base is set to 30°. The transmitter is symmetrically arranged in two groups, and a vertical probe is installed on the surface of each of the two groups of transmitters.

[0010] Preferably, a second launcher is provided between the two sets of launchers one. The second launcher is installed at an angle on the top of the fixed base. The angle between the second launcher and the fixed base is set to 60°. There are also two sets of second launchers. Vertical probes are installed on the surface of both sets of second launchers.

[0011] Preferably, a third launcher is provided between adjacent second launchers, the third launcher is vertically mounted on the top of the fixed base, and a vertical probe is mounted on the surface of the third launcher.

[0012] Preferably, a signal transceiver compartment is installed on the surface of the mobile vehicle body, and a magnetic detection module is provided on the surface of the horizontal transmitting tube. The magnetic detection module, the vertical probe, and the horizontal probe are electrically connected to the signal transceiver compartment.

[0013] Preferably, the mobile vehicle body is equipped with inflatable wheels at the bottom, a counterweight frame is installed on one side of the mobile vehicle body, and a handle is installed on one side of the counterweight frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. During use, when transmitting and collecting signals in the horizontal direction, signals can be transmitted to the horizontal probe installed in the horizontal transmitting tube through the signal transceiver compartment. The horizontal probe is installed inside the horizontal transmitting tube, which can effectively reduce external interference before the signal is released. The evenly distributed ring-shaped horizontal probes will effectively transmit the signal. In order to reduce the interference of external metal objects in the horizontal direction, the magnetic detection module installed on the surface of the horizontal transmitting tube can detect metal objects in the surrounding area, thereby effectively reducing the impact of metal objects in the survey area on the horizontal survey data and ensuring the collection of tunnel geological survey data.

[0016] 2. During use, when transmitting and collecting signals in the vertical direction, the signal transceiver compartment can be driven to transmit signals to the vertical probes in the areas of transmitter 1, transmitter 2, and transmitter 3 in the outer shielding shell. Due to the change in the included angle of transmitter 1, transmitter 2, and transmitter 3, the range of signal transmission positions is increased. This allows for effective inference of the location and water content of geological anomalies ahead through multi-angle observation, eliminating the problem of single signal position during the survey process and further ensuring the collection of geological survey data in the tunnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0018] Figure 2 This is a schematic diagram of the counterweight frame and handle in this utility model;

[0019] Figure 3 This is a schematic diagram of the horizontal transmitting tube, magnetic detection module, and horizontal probe in this utility model;

[0020] Figure 4 This is a schematic diagram of the three parts of the present invention: launcher one, launcher two, and launcher three.

[0021] In the diagram: 1. Mobile vehicle body; 11. Inflatable wheels; 2. Outer shielding shell; 3. Horizontal transmitting tube; 31. Magnetic detection module; 32. Horizontal probe; 4. Signal transceiver compartment; 5. Counterweight frame; 51. Handle; 6. Mounting base; 61. Transmitter frame one; 62. Transmitter frame two; 63. Transmitter frame three; 64. Vertical probe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] Example 1: A geological exploration device for coal mine roadways: including a mobile vehicle body 1, an electromagnetic exploration unit for the inner cavity of the coal mine roadway, and an outer shielding shell 2. The outer shielding shell 2 is located on the top area of ​​the mobile vehicle body 1, and the electromagnetic exploration unit for the inner cavity of the coal mine roadway is located inside the outer shielding shell 2, for realizing geological exploration and detection at multiple locations inside the coal mine roadway.

[0025] The bottom of the mobile vehicle body 1 is equipped with inflatable wheels 11, and a counterweight frame 5 is installed on one side of the mobile vehicle body 1. A handle 51 is installed on one side of the counterweight frame 5.

[0026] The electromagnetic survey unit inside the coal mine roadway includes a horizontal survey section, which includes a horizontal transmitting tube 3. The horizontal transmitting tube 3 is set in two groups, and the two groups of horizontal transmitting tube 3 are installed through the surface of the outer shield shell 2. The two groups of horizontal transmitting tube 3 are symmetrically arranged, and horizontal probes 32 are arranged in a ring inside the horizontal transmitting tube 3.

[0027] The electromagnetic survey unit inside the coal mine roadway also includes a vertical survey unit, which includes a fixed base 6. The fixed base 6 is installed at the bottom of the inner cavity of the outer shield shell 2. A transmitter 61 is installed at an angle on the surface of the fixed base 6. The angle between the transmitter 61 and the fixed base 6 is set to 30°. The transmitter 61 is symmetrically arranged in two groups. A vertical probe 64 is installed on the surface of each of the two groups of transmitter 61.

[0028] A second launcher 62 is provided between the two sets of launchers 61. The second launcher 62 is installed at an angle on the top of the fixed base 6. The angle between the second launcher 62 and the fixed base 6 is set to 60°. There are also two sets of second launchers 62. Vertical probes 64 are installed on the surface of both sets of second launchers 62.

[0029] A third launcher 63 is provided between adjacent launchers 2 62. The third launcher 63 is vertically installed on the top of the fixed base 6, and a vertical probe 64 is installed on the surface of the third launcher 63.

[0030] The surface of the mobile vehicle body 1 is equipped with a signal transceiver compartment 4, and the surface of the horizontal transmitting tube 3 is equipped with a magnetic detection module 31. The magnetic detection module 31, the vertical probe 64, and the horizontal probe 32 are electrically connected to the signal transceiver compartment 4.

[0031] In this embodiment, when transmitting and collecting signals in the vertical direction, the signal transceiver compartment 4 can transmit signals to the vertical probes 64 in the areas of transmitter 61, transmitter 62 and transmitter 63 in the outer shield shell 2. Due to the change in the included angle of transmitter 61, transmitter 62 and transmitter 63, the range of signal transmission positions is increased. It is possible to effectively infer the position and water content of the geological anomaly ahead through multi-angle observation, eliminate the problem of single signal position in the exploration process, and further ensure the collection of geological exploration data in the tunnel.

[0032] Working principle: When geological surveys are required, operators can use the handle 51 and inflatable wheels 11 to transport the mobile vehicle 1 into the coal mine roadway. After the mobile vehicle 1 is in place, the operators set up external measuring points along the mobile vehicle 1 and connect the measuring point probes to the signal transceiver compartment 4 through external wires. This allows the signal transceiver compartment 4 to collect data synchronously and facilitates data interaction between the external measuring point probes, magnetic detection module 31, vertical probe 64, horizontal probe 32 and the signal transceiver compartment 4, ensuring the validity of the geological exploration data of the coal mine roadway.

[0033] When transmitting and collecting signals in the horizontal direction, signals can be transmitted to the horizontal probes 32 installed in the horizontal transmitting tube 3 through the signal transceiver compartment 4. The horizontal probes 32 are installed inside the horizontal transmitting tube 3, which can effectively reduce external interference before the signal is released. The evenly distributed ring-shaped horizontal probes 32 can effectively transmit the signal. In order to reduce the interference of external metal objects in the horizontal direction, the magnetic detection module 31 installed on the surface of the horizontal transmitting tube 3 can detect metal objects in the surrounding area, thereby effectively reducing the impact of metal objects in the survey area on the horizontal survey data and ensuring the collection of tunnel geological survey data.

[0034] When transmitting and collecting signals in the vertical direction, the signal transceiver compartment 4 can transmit signals to the vertical probes 64 in the areas of transmitter 1 61, transmitter 2 62, and transmitter 3 63 in the outer shield shell 2. Due to the change in the included angle of transmitter 1 61, transmitter 2 62, and transmitter 3 63, the range of signal transmission positions is increased. This allows for effective inference of the location and water content of geological anomalies ahead through multi-angle observation, eliminating the problem of single signal position during the survey process and further ensuring the collection of geological survey data in the tunnel.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal mine roadway geological exploration device, characterized in that: Including mobile car body (1), coal mine tunnel cavity electromagnetic survey unit and outer shielding shell (2), the outer shielding shell (2) is arranged in the top area of the mobile car body (1), the coal mine tunnel cavity electromagnetic survey unit is arranged inside the outer shielding shell (2), for realizing the geological exploration detection of multiple positions inside the coal mine tunnel.

2. The coal mine roadway geological exploration device according to claim 1, characterized in that: The coal mine tunnel cavity electromagnetic survey unit includes a horizontal surveying part, the horizontal surveying part includes horizontal emission tubes (3), the horizontal emission tubes (3) are arranged in two groups, and the two groups of horizontal emission tubes (3) are installed through the surface of the outer shielding shell (2), wherein the two groups of horizontal emission tubes (3) are symmetrically arranged, and the horizontal emission tubes (3) are arranged in a ring shape in the cavity and are provided with horizontal probes (32).

3. The coal mine roadway geological exploration device according to claim 2, characterized in that: The coal mine tunnel cavity electromagnetic survey unit further includes a vertical surveying part, the vertical surveying part includes a fixed seat (6), the fixed seat (6) is installed in the inner cavity of the outer shielding shell (2), and the surface of the fixed seat (6) is obliquely installed with an emission rack one (61), the included angle between the emission rack one (61) and the fixed seat (6) is 30°, the emission rack one (61) is symmetrically arranged in two groups, and the surface of the two groups of emission rack one (61) is provided with vertical probes (64).

4. The coal mine roadway geological exploration device according to claim 3, characterized in that: The emission rack two (62) is obliquely installed on the top of the fixed seat (6), the included angle between the emission rack two (62) and the fixed seat (6) is 60°, and the emission rack two (62) is also arranged in two groups, and the surface of the two groups of emission rack two (62) is provided with vertical probes (64).

5. The coal mine roadway geological exploration device according to claim 4, characterized in that: The emission rack three (63) is vertically installed on the top of the fixed seat (6), and the surface of the emission rack three (63) is provided with a vertical probe (64).

6. The coal mine roadway geological exploration device according to claim 3, characterized in that: The surface of the mobile car body (1) is provided with a signal transceiver bin (4), the surface of the horizontal emission tube (3) is provided with a magnetic detection module (31), the magnetic detection module (31), the vertical probe (64), the horizontal probe (32) and the signal transceiver bin (4) are electrically connected.

7. The coal mine roadway geological exploration device according to claim 1, characterized in that: The bottom of the mobile car body (1) is provided with an inflatable wheel (11), one side of the mobile car body (1) is provided with a counterweight frame (5), and one side of the counterweight frame (5) is provided with a handle (51).

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