A microseismic monitoring sensor device suitable for railway tunnels and a method of use

Abstract

The present invention relates to the field of tunnel engineering technology, and specifically to a microseismic monitoring sensor device suitable for railway tunnels and a method of use. The microseismic monitoring sensor device suitable for railway tunnels includes a base and a cavity, wherein the cavity is used to accommodate a sensor, and the base is provided with a prompter and a locking member, wherein the locking member is used to fix the base, and moving the base can make the prompter approach the sensor, and when the prompter abuts against the sensor, the prompter can send a prompt signal. Through the above-mentioned arrangement, it is convenient to judge the degree of fit between the sensor and the contact surface of the installation position, and the degree of fit between the sensor and the contact surface of the installation position can be improved when the sensor is installed, thereby improving the monitoring accuracy of the sensor, and at the same time reducing the probability of the sensor being damaged, avoiding the complex environment in the installation hole hindering the installation of the sensor, and improving the convenience of installation.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and in particular to a microseismic monitoring sensor device suitable for railway tunnels and a use method thereof. Background Art

[0002] Microseismic monitoring sensors are sensors that can monitor and record tiny vibration events in real time. They are widely used in many fields. Among them, velocity-type seismic sensors are mainly used to monitor the propagation speed of seismic waves. It usually consists of a sensor and an amplifier. The sensor is responsible for receiving seismic wave signals and converting them into electrical signals. The electrical signals are then amplified by the amplifier and transmitted to a recorder or computer for processing. The main feature of velocity-type seismic sensors is that they have a wide detection range, can cover a large area, and can provide relatively accurate seismic wave propagation velocity data. These data can help understand the properties and structure of underground rocks, and then infer the distribution and reserves of underground mineral resources.

[0003] Velocity-type seismic sensors usually need to work for a long time, so their accuracy and precision need to be guaranteed to avoid malfunctions or errors.

[0004] In the prior art, when installing the sensor, it is difficult to determine the degree of fit between the sensor and the contact surface of the mounting position after the installation is completed because the sensor is installed in a small space. When the degree of fit between the sensor and the contact surface of the mounting position is poor, the accuracy of detecting tiny seismic waves will be reduced. Secondly, during long-term use, the sensor is easily loosened or even dropped due to the influence of external natural conditions, causing great losses to the detection of seismic waves. At the same time, the sensor is usually permanently fixed in the mounting position after installation and cannot be removed and recycled for secondary use, which imposes a huge cost burden on seismic wave detection.

[0005] Therefore, it is necessary to study a microseismic monitoring sensor device suitable for railway tunnels and a method of use to solve the above problems. Summary of the invention

[0006] The purpose of the invention is to solve the problem that when installing sensors in the prior art, it is difficult to determine the degree of fit between the sensor and the contact surface of the installation position after the installation is completed because the sensor is installed in a small space. When the degree of fit between the sensor and the contact surface of the installation position is poor, the accuracy of detecting tiny seismic waves will be reduced. The present invention provides a microseismic monitoring sensor device suitable for railway tunnels and a method of use, which can improve the degree of fit between the sensor and the contact surface of the installation position when the sensor is installed, and improve the monitoring accuracy of the sensor.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a microseismic monitoring sensor device suitable for railway tunnels, comprising a base and a cavity, the cavity is used to accommodate the sensor, the base is provided with a prompter and a locking piece, the locking piece is used to fix the base, moving the base can make the prompter close to the sensor, when the prompter abuts against the sensor, the prompter can send a prompt signal.

[0008] By setting up the cavity, the sensor can be installed at the corresponding position of the tunnel through the component with the cavity. The protection of the cavity can reduce the probability of the sensor being damaged during installation, and at the same time avoid the complex environment in the installation hole hindering the installation of the sensor, thereby improving the convenience of installation; by moving the base, the indicator can be brought close to the sensor, thereby driving the sensor to be close to the inner wall of the cavity; due to the restriction of the inner wall of the cavity, when the indicator sends a signal, it means that the indicator has abutted against the sensor and the sensor is abutted against the inner wall of the cavity, that is, the degree of adhesion between the sensor and the inner wall of the cavity is improved. The degree of fit between the sensor and the inner wall of the cavity is relatively high; when the structure with the cavity is installed in the installation hole, the sensor is in indirect contact with the contact surface of the installation position through the inner wall of the cavity. Since the sensor fits the inner wall of the cavity relatively well, the sensor can better receive the vibration signal through the installation hole; when the prompter sends a signal, the relative position of the base and the cavity can be kept fixed by the locking member, such as connecting the base to the cavity wall or connecting the base to the surrounding environment, so as to keep the sensor in contact with the inner wall of the cavity, which is convenient for the sensor to keep in contact during the monitoring process. Through the above-mentioned settings, the degree of fit between the sensor and the contact surface of the installation position can be improved when the sensor is installed, and it is convenient to judge the degree of fit, thereby improving the monitoring accuracy of the sensor.

[0009] As a preferred solution of the present invention, the indicator is connected with a guide member and an elastic retractor, the guide member is used to connect the sensor, and the guide member is used to limit the retractable direction of the elastic retractor.

[0010] By setting a guide member, the telescopic direction of the elastic telescope can be limited, so that when the indicator approaches and abuts against the sensor, the elastic telescope can move along the telescopic direction, thereby improving the pressure transmission effect when the indicator abuts against the sensor, thereby improving the accuracy of the prompt signal emitted by the indicator; by setting an elastic telescope, it can play a buffering role when the indicator abuts against the sensor, thereby improving the protection effect of the indicator and the sensor.

[0011] As a preferred embodiment of the present invention, the guide member includes a limit cylinder and a limit head, the limit cylinder is fixedly connected to the sensor, the elastic expander is installed in the limit cylinder, the indicator and the limit head are respectively arranged on both sides of the elastic expander, and the indicator is connected to the sensor through the guide member.

[0012] By setting a limit head, the contact area of ​​the contact surface of the elastic expander can be increased, so that the force of the elastic expander is stable; by setting a limit cylinder and installing the elastic expander in the limit cylinder, when the sensor abuts against the prompter, the elastic expander can be restricted by the limit head to be expanded and contracted in the limit cylinder, thereby improving the stability of the elastic expander during expansion and contraction.

[0013] As a preferred solution of the present invention, the limit head is provided with a buffer layer.

[0014] By providing a buffer layer, it is possible to prevent the limit head from directly contacting the inner wall of the cavity, which would cause scratches on the limit head, thereby extending the service life of the device.

[0015] As a preferred embodiment of the present invention, the base includes a holding part, an inner cylinder, a propulsion part and a guide rod, the holding part is sleeved on the outside of the inner cylinder, the inner cylinder is slidably sleeved on the guide rod, the propulsion part and the holding part are provided with limiting devices that cooperate with each other, and moving the propulsion part can make the propulsion part contact with the guide rod and thereby drive the prompter close to the sensor.

[0016] By providing a holding portion, it is convenient to hold and operate the base, thereby improving the convenience of using the device; by providing an inner tube and a guide rod, and sliding the inner tube onto the guide rod, the moving direction of the guide rod can be limited, thereby improving the stability of the guide rod when moving; by providing a propulsion portion, the movement of the guide rod can be operated conveniently; by moving the propulsion portion, the propulsion portion can be brought into contact with the guide rod and thereby drive the indicator close to the sensor, thereby further limiting the direction in which the indicator moves toward the sensor, thereby improving the accuracy of the indicator contacting the sensor; by providing a limit device, the positions of the propulsion portion and the holding portion can be relatively fixed after the indicator sends a prompt signal, thereby keeping the indicator in contact with the sensor, thereby keeping the sensor in contact with the inner wall of the cavity.

[0017] As a preferred solution of the present invention, the limiting device is an external thread provided on the outer surface of the propulsion portion, and an internal thread provided on the inner surface of the gripping portion and used in conjunction with the external thread of the propulsion portion.

[0018] By providing the external thread and the internal thread, when the propulsion part is used to move the guide rod, the propulsion part can be rotated to be threadedly connected with the gripping part, so that the guide rod is gradually moved, thereby improving the control accuracy of the guide rod.

[0019] As a preferred solution of the present invention, a buffer layer is provided between the propulsion portion and the guide rod.

[0020] By providing a buffer layer, the propulsion part is prevented from directly contacting the guide rod, which would cause scratches on the propulsion part and the guide rod, thereby extending the service life of the device.

[0021] As a preferred embodiment of the present invention, a microseismic monitoring sensor suitable for railway tunnels further comprises an anchor bolt, the anchor bolt is provided with the cavity, the shape of the anchor bolt is a spindle cone, and the anchor bolt is made of corrosion-resistant material.

[0022] By providing an anchor bolt with a cavity, the cavity can be inserted into the mounting hole by installing the anchor bolt, thereby improving the convenience of installation; by providing the anchor bolt with a spindle cone shape, the anchor bolt can be easily installed into the mounting hole; by providing the anchor bolt with a corrosion-resistant material, the service life of the device can be extended.

[0023] As a preferred solution of the present invention, the outer wall of the anchor bolt is provided with a water-blocking portion and an anti-slip portion, and the water-blocking portion is provided with a drainage port.

[0024] By providing a water-blocking portion, the probability of the anchor bolt being flushed out due to water gushing out of the installation hole can be reduced. By providing an anti-slip portion, the contact area between the cavity and the installation hole can be increased, the friction force can be increased, and the installation can be made more secure. By providing a drain outlet, the water gushing out of the installation hole can be converted into flowing water and discharged, which reduces the flow rate of the water, weakens the impact force of the water, and effectively improves the stability of the anchor bolt installation, avoiding water erosion to cause the device to loosen, thereby affecting the seismic wave monitoring work.

[0025] While providing the above structural solution, the present invention also provides a method for using a microseismic monitoring sensor device suitable for a railway tunnel, comprising the following steps:

[0026] S1: Fill quick-drying cement into the installation hole;

[0027] S2: installing the structure having the cavity into the installation hole;

[0028] S3: moving the base to the prompter to send out a prompt signal;

[0029] S4: using the locking member to fix the relative position of the base and the cavity;

[0030] S5: Monitor the vibration signal and complete the monitoring.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] 1. The present invention sets a movable base to send out a prompt signal to the prompt device, and then uses a locking member to keep the relative position of the base and the cavity fixed, so that the sensor is kept in contact with the inner wall of the cavity, which can improve the degree of contact between the sensor and the installation position contact surface when the sensor is installed, and improve the monitoring accuracy of the sensor.

[0033] 2. The present invention can reduce the probability of the anchor bolt being flushed out due to water gushing out of the installation hole by providing a water-blocking portion, and can increase the contact area between the cavity and the installation hole by providing an anti-slip portion, thereby increasing the friction and making the installation more secure; and can convert the water gushing out of the installation hole into flowing water and discharge it by providing a drain outlet, thereby reducing the flow rate of the water, weakening the impact force of the water, and effectively improving the stability of the anchor bolt installation, thereby avoiding loosening of the device caused by water erosion and affecting the seismic wave monitoring work.

[0034] 3. The present invention provides a method for using a microseismic monitoring sensor device suitable for a railway tunnel. The method comprises installing a structure having the cavity into a mounting hole and fixing it in the mounting hole with quick-drying cement, so that the sensor is in indirect contact with the mounting hole through the inner wall of the cavity. After use, the base can be disassembled and the sensor can be recovered for secondary use, thereby reducing the cost of seismic wave detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a main schematic diagram of a microseismic monitoring sensor device suitable for railway tunnels according to the present invention.

[0036] Figure 2 It is a schematic diagram of the state where the base and the cavity of the microseismic monitoring sensor device suitable for railway tunnels of the present invention are not connected (without adding threads).

[0037] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the proposed A.

[0038] Figure 4 It is a schematic diagram of the cross-sectional structure of the base of the microseismic monitoring sensor device suitable for railway tunnels of the present invention (without adding threads).

[0039] Figure 5 The figure is a schematic diagram of the cavity structure of the microseismic monitoring sensor device suitable for railway tunnels of the present invention.

[0040] Figure 6 The present invention is a flow chart of a method for using a microseismic monitoring sensor device suitable for a railway tunnel.

[0041] Markings in the figure: 1-base; 11-grip part; 12-inner cylinder; 13-propelling part; 14-guide rod; 2-sensor; 21-guide piece; 211-limiting cylinder; 212-limiting head; 22-prompt device; 23-elastic retractor; 3-cavity; 31-water blocking part; 32-anti-slip part; 33-drainage outlet. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and 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.

[0044] As attached Figure 1-5 As shown, this embodiment provides a microseismic monitoring sensor device suitable for railway tunnels, including a base 1 and a cavity 3, wherein the cavity 3 is used to accommodate a sensor 2, wherein the sensor 2 is arranged on the base 1, and the indicator 22 is arranged on the sensor, and the base 1 is provided with a locking member, wherein the locking member is used to fix the base 1, and moving the base 1 can enable the sensor 2 and the indicator 22 to enter the cavity 3, and continuing to move the base 1 allows the sensor 2 to abut against the inner wall of the cavity 3 through the indicator 22 until the indicator 22 sends a prompt signal. When the indicator 22 sends a signal, it indicates that the sensor 2 and the inner wall of the cavity 3 have reached the degree of fit required for work, and at this time, the base 1 is connected to the wall of the cavity 3 through the locking member.

[0045] Furthermore, the locking member can be an external thread provided on the base 1, and an internal thread provided on the inner wall of the cavity 3 that can be used in conjunction with the external thread. Of course, those skilled in the art can also set the locking member as a snap-on connector or a plug-in connector that can connect the base 1 and the wall of the cavity 3, or set the locking member as a plug-in connector that can connect the base 1 to the surrounding environment, etc.

[0046] Furthermore, those skilled in the art may configure the sensor as a velocity-type seismic detector, an acceleration-type seismic detector, or the like.

[0047] Furthermore, the prompter 22 is a buzzer. Of course, those skilled in the art may also configure the prompter 22 to be a wireless signal transmitter or the like.

[0048] The indicator 22 is connected to a guide member 21 and an elastic retractor 23 . The guide member 21 is used to be connected to the sensor 2 . The guide member 21 is used to limit the retracting direction of the elastic retractor 23 .

[0049] Furthermore, the guide member 21 includes a limit cylinder 211 and a limit head 212, the limit cylinder 211 is fixedly connected to the sensor 2, the elastic expander 23 is installed in the limit cylinder 211, and the prompter 22 and the limit head 212 are respectively arranged on both sides of the elastic expander 23, and the prompter 22 is connected to the sensor 2 through the guide member 21.

[0050] Furthermore, the limiting cylinder 211 is a cylindrical component with an opening at one end, and the outer wall of the unopened end of the limiting cylinder 211 is fixedly connected to the sensor 2, the prompter 22 is arranged on the inner wall of the unopened end of the limiting cylinder 211, the elastic retractor 23 is arranged inside the limiting cylinder 211, and one side of the elastic retractor 23 is fixedly connected to the prompter 22, the elastic retractor 23 is limited by the inner wall of the limiting cylinder 211, so that the elastic retractor 23 moves along the retracting direction, and the elastic retractor 23 is fixedly connected to the prompter 22. One side of the retractor 23 is fixedly connected to the limit head 212. When the indicator 22 moves toward the cavity 3, the limit head 212 contacts the inner wall of the cavity 3, thereby increasing the contact area and making the elastic retractor 23 evenly and stably stressed. When the indicator 22 abuts against the inner wall of the cavity 3, the limit head 212 drives the elastic retractor 23 to move and compress the elastic retractor 23, and then the elastic retractor 23 transmits the force to the indicator 22 until the indicator 22 sends a prompt signal.

[0051] Furthermore, the elastic expander 23 is a spring. Of course, those skilled in the art may also configure the elastic compression device 23 as an elastic rubber pad or an elastic diaphragm.

[0052] The limiting head 212 is provided with a buffer layer.

[0053] Furthermore, the buffer layer is arranged on the surface where the limit head 212 contacts the inner wall of the cavity 3 , and the buffer layer is a sponge pad. Of course, those skilled in the art may also arrange the buffer layer as a rubber pad, a polypropylene pad, etc.

[0054] The base 1 includes a holding portion 11, an inner tube 12, a propulsion portion 13 and a guide rod 14. The holding portion 11 is sleeved on the outside of the inner tube 12, and the inner tube 12 is slidably sleeved on the guide rod 14. The propulsion portion 13 and the holding portion 11 are provided with limiting devices that cooperate with each other. Moving the propulsion portion 13 can make the propulsion portion 13 contact with the guide rod 14 and thereby drive the indicator 22 to approach the sensor 2.

[0055] Furthermore, the holding portion 11 is a cylindrical component fixedly sleeved on the outside of the inner cylinder 12, the holding portion 11 extends outward along one end of the inner cylinder 12, the inner cylinder 12 is a cylindrical component with a through hole inside, the through hole penetrates the inner cylinder 12 axially along the inner cylinder 12, the guide rod 14 is a rod-shaped component slidably arranged in the through hole of the inner cylinder 12, the inner wall of the through hole of the inner cylinder 12 just fits with the guide rod 14 and the guide rod 14 can slide along the through hole of the inner cylinder 12, the propulsion portion 13 is a component that can contact the guide rod 14 and drive the guide rod 14 to slide, the limiting device is an external thread arranged on the outer surface of the propulsion portion 13, and an internal thread arranged on the inner surface of the holding portion 11 and used in conjunction with the external thread of the propulsion portion 13, the internal thread is arranged on the inner wall of the holding portion 11 at one end extending outward from the inner cylinder 12.

[0056] Furthermore, the sensor 2 is fixedly arranged on the guide rod 14, and the propulsion part 13 is rotated so that the propulsion part 13 is screwed with the holding part 11, and the propulsion part 13 is continuously rotated so that the propulsion part 13 can contact with the guide rod 14 and then drive the sensor 2 to abut against the inner wall of the cavity 3 through the indicator 22 until the indicator 22 sends a prompt signal, and then the rotation of the propulsion part 13 is stopped so that the positions of the propulsion part 13 and the holding part 11 are relatively fixed.

[0057] Furthermore, those skilled in the art may also configure the limiting device to be a buckle device, a pin device, etc. that can be used in conjunction with the limiting device.

[0058] Furthermore, the outer surface of the gripping portion 11 may be provided with an anti-slip device, which is a dot-shaped protrusion. Of course, those skilled in the art may also provide the anti-slip device as an annular protrusion, a grid-shaped protrusion, etc.

[0059] A buffer layer is provided between the propulsion portion 13 and the guide rod 14 .

[0060] Furthermore, the buffer layer can be arranged on the surface where the propulsion part 13 contacts the guide rod 14, or on the surface where the guide rod 14 contacts the propulsion part 13. The buffer layer is a sponge pad. Of course, those skilled in the art can also set the buffer layer to a rubber pad, a polypropylene pad, etc.

[0061] The microseismic monitoring sensor device suitable for railway tunnels also includes an anchor bolt, the anchor bolt is provided with the cavity 3, the shape of the anchor bolt is a spindle cone, and the anchor bolt is made of corrosion-resistant material.

[0062] Furthermore, those skilled in the art may also set the shape of the cavity 3 to be a cube, a cone, a sphere, etc.

[0063] Furthermore, the cavity 3 is made of polypropylene material. Of course, those skilled in the art may also set the material of the cavity 3 to polytetrafluoroethylene or polyester.

[0064] The outer wall of the anchor bolt is provided with a water blocking portion 31 and an anti-slip portion 32 , and the water blocking portion 31 is provided with a drainage port 33 .

[0065] Furthermore, the water blocking portion 31 is a strip-shaped membrane surrounding the outer wall of the cavity 3 . Of course, those skilled in the art may also configure the water blocking portion 31 to be an umbrella-shaped membrane surrounding the outer wall of the cavity 3 .

[0066] Furthermore, the anti-slip portion 32 is a dot-shaped protrusion integrally provided on the outer wall of the cavity 3. Of course, those skilled in the art may also configure the anti-slip portion 32 as an annular protrusion, a grid-shaped protrusion, etc. integrally provided on the outer wall of the cavity 3.

[0067] Furthermore, the drain port 33 is fan-shaped. Of course, those skilled in the art may also set the drain port 33 to be a square or circular through hole, or a plurality of through holes.

[0068] While providing the above structural solution, the present invention also provides a method for using a microseismic monitoring sensor device suitable for a railway tunnel, comprising the following steps:

[0069] S1: Fill quick-drying cement into the installation hole;

[0070] S2: Installing the structure having the cavity 3 into the installation hole;

[0071] S3: moving the base 1 so that the sensor 2 and the indicator 22 enter the cavity 3;

[0072] S4: rotating the propulsion portion 13 so that the propulsion portion 13 is screwed to the gripping portion 11;

[0073] S5: Continue to rotate the propulsion unit 13, so that the propulsion unit 13 drives the guide rod 14 to move toward the cavity 3, and the sensor 2 abuts against the inner wall of the cavity 3 through the indicator 22, until the indicator 22 sends a prompt signal;

[0074] S6: Stop rotating the propulsion portion 13 to fix the relative position of the gripping portion 11 and the propulsion portion 13;

[0075] S7: using the locking member to fix the relative position of the base 1 and the structure having the cavity 3;

[0076] S8: monitor the vibration signal and complete the monitoring;

[0077] S9: Release the connection of the locking member, disassemble the base 1 and separate it from the structure with the cavity 3.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0079] The drawings illustrate the relationship between each other, and their relative sizes do not represent the actual sizes, but are only for schematic representation of the positions. Not all components are fully expressed in the schematic diagram, and only the key parts are described in detail.

Claims

1. A microseismic monitoring sensor device suitable for railway tunnels, characterized in that: The invention comprises a base (1) and a cavity (3), wherein the cavity (3) is used to accommodate a sensor (2), the base (1) is provided with a prompter (22) and a locking member, the locking member is used to fix the base (1), and the base (1) can be moved so that the prompter (22) is close to the sensor (2), and when the prompter (22) abuts against the sensor (2), the prompter (22) can send out a prompt signal; The prompter (22) is connected to a guide member (21) and an elastic retractor (23); the guide member (21) is used to be connected to the sensor (2); and the guide member (21) is used to limit the retractable direction of the elastic retractor (23); The guide member (21) comprises a limiting cylinder (211) and a limiting head (212); the elastic expander (23) is installed in the limiting cylinder (211); the indicator (22) and the limiting head (212) are respectively arranged on both sides of the elastic expander (23) in a manner opposite to each other; the indicator (22) is connected to the sensor (2) via the guide member (21).

2. A microseismic monitoring sensor device suitable for railway tunnels as claimed in claim 1, characterized in that: The limiting head (212) is provided with a buffer layer.

3. A microseismic monitoring sensor device suitable for railway tunnels as claimed in claim 1, characterized in that: The base (1) comprises a holding portion (11), an inner tube (12), a propulsion portion (13) and a guide rod (14); the holding portion (11) is sleeved on the outside of the inner tube (12); the inner tube (12) is slidably sleeved on the guide rod (14); the propulsion portion (13) and the holding portion (11) are provided with limiting devices that cooperate with each other; moving the propulsion portion (13) can make the propulsion portion (13) contact with the guide rod (14) and thereby drive the indicator (22) to approach the sensor (2).

4. A microseismic monitoring sensor device suitable for railway tunnels as claimed in claim 3, characterized in that: The limiting device comprises an external thread provided on the outer surface of the propulsion portion (13) and an internal thread provided on the inner surface of the gripping portion (11) and used in conjunction with the external thread of the propulsion portion (13).

5. A microseismic monitoring sensor device suitable for railway tunnels as claimed in claim 4, characterized in that: A buffer layer is provided between the propulsion portion (13) and the guide rod (14).

6. A microseismic monitoring sensor device suitable for railway tunnels as described in any one of claims 1 to 5, characterized in that: It also comprises an anchor bolt, the anchor bolt being provided with the cavity (3), the anchor bolt being in the shape of a spindle cone, and the anchor bolt being made of a corrosion-resistant material.

7. A microseismic monitoring sensor device suitable for railway tunnels as claimed in claim 6, characterized in that: The outer wall of the anchor bolt is provided with a water blocking portion (31) and an anti-slip portion (32), and the water blocking portion (31) is provided with a drainage port (33).

8. A method for using a microseismic monitoring sensor device suitable for a railway tunnel, characterized in that: Using a microseismic monitoring sensor device suitable for a railway tunnel as described in any one of claims 1 to 7 comprises the following steps: S1: Fill quick-drying cement into the installation hole; S2: installing the structure having the cavity (3) into the installation hole; S3: moving the base (1) to the prompter (22) to send out a prompt signal; S4: using the locking member to fix the relative position of the base (1) and the cavity (3); S5: Monitor the vibration signal and complete the monitoring.

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