CN212483889U - Micro-seismic sensor device for monitoring mine geological disasters - Google Patents
Micro-seismic sensor device for monitoring mine geological disasters Download PDFInfo
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- CN212483889U CN212483889U CN202021252355.7U CN202021252355U CN212483889U CN 212483889 U CN212483889 U CN 212483889U CN 202021252355 U CN202021252355 U CN 202021252355U CN 212483889 U CN212483889 U CN 212483889U
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Abstract
The utility model discloses a microseism sensor device for monitoring of mine geological disasters. The microseism sensor device comprises a microseism sensor, a shell, a signal wire, a forming die and a vibration sensing device. The vibration sensing device is placed in the forming die, and the forming die is filled with the anchoring agent, so that the micro-vibration sensor device can be conveniently fixed on the inner wall of the underground roadway through the anchoring agent without drilling, and time and labor are saved. Furthermore, the device connecting rod of the vibration sensing device is in threaded connection with the shell, so that the shell and the vibration sensor inside the shell can be conveniently detached, the recycling of the sensor is realized, and the microseismic monitoring cost is greatly saved.
Description
Technical Field
The utility model relates to an engineering geology microseismic monitoring technology field especially relates to a microseismic sensor device for monitoring of mine geological disasters.
Background
Microseismic Monitoring technology (MS) is based on acoustic emission and seismology and has been developed as a new high-tech Monitoring technology. The method is a geophysical technology for monitoring the influence, effect and underground state of the micro earthquake events generated in the production activities by observing and analyzing the micro earthquake events. When the underground rock is cracked and moved due to human factors or natural factors, weak seismic waves are generated and transmitted to the periphery, a plurality of groups of micro-seismic sensing monitoring equipment are arranged in the space around the cracking area, micro-seismic data are collected in real time, after data processing, the position where cracking occurs can be determined by adopting a vibration positioning principle, and the position where cracking occurs is displayed on a three-dimensional space.
In the surrounding rock excavation construction process of underground mine engineering, in order to accurately predict possible surrounding rock deformation damage and dynamic disasters, the micro-seismic monitoring sensor needs to be fixed in a monitored surrounding rock area in advance before engineering excavation. And accurately determining the parts possibly subjected to surrounding rock damage and dynamic disasters by using a microseismic technology. The existing method for installing the micro-seismic sensor mainly comprises the steps of putting the micro-seismic sensor into a pre-drilled drill hole, and then sealing and fixing the micro-seismic sensor in the drill hole by using an adhesive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a slight shock sensor device for monitoring of mine geological disasters to solve current slight shock sensor installation and waste time and energy and the sensor can not take out the problem of carrying out recycle.
In order to achieve the above object, the utility model provides a following scheme:
a microseismic sensor device for mine geological disaster monitoring, the microseismic sensor device comprising: the device comprises a micro-vibration sensor, a shell, a signal wire, a forming die and a vibration sensing device;
the microseismic sensor is fixedly arranged in the shell; one end of the shell is provided with a wiring hole, and the other end of the shell is provided with a threaded hole; one end of the signal wire is connected with the microseismic sensor; the other end of the signal wire is led out from the wiring hole of the shell; the vibration sensing device is placed in the forming die and attached to the inner wall of the forming die; the forming die is horn-shaped; the forming die is filled with an anchoring agent; the open end of the forming die is attached to the inner wall of the underground roadway; a through hole is formed in the closed end of the forming die; a device connecting rod of the vibration sensing device is provided with threads; the device connecting rod of the vibration sensing device is in threaded connection with the shell through the through hole.
Optionally, the vibration sensing device comprises a connecting ring, an anchor rod connecting rod and a device connecting rod;
the outer diameter of the connecting ring is the same as the inner diameter of the closed end of the forming die; one end of the anchor rod is rigidly connected with the connecting ring; the other end of the anchor rod and the opening end of the forming die are positioned on the same plane; one end of the anchor rod connecting rod is rigidly connected with one end of the anchor rod; the other end of the anchor rod connecting rod is rigidly connected with the device connecting rod; the anchor rod connecting rod and the connecting ring are positioned on the same plane; the device connecting rod is perpendicular to the anchor rod connecting rod.
Optionally, the number of the anchor rods is multiple; a plurality of anchor rods are uniformly distributed on the connecting ring; the number of the anchor rod connecting rods is the same as that of the anchor rods.
Optionally, the number of the anchor rods is 2-4.
Optionally, the anchor rod is a steel pipe with a diameter of 10-20 mm.
Optionally, the device connecting rod is a high-strength deformed steel bar anchor rod with the diameter of 10-20mm and the length of 20-50 mm.
Optionally, the anchoring agent is an SH series cement-based anchoring agent.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model provides a slight shock sensor device for monitoring of mine geological disasters, slight shock sensor device includes slight shock sensor, casing, signal line, forming die and vibrations induction system. The vibration sensing device is placed in the forming die, and the forming die is filled with the anchoring agent, so that the micro-vibration sensor device can be conveniently fixed on the inner wall of the underground roadway through the anchoring agent without drilling, and time and labor are saved. Furthermore, the device connecting rod of the vibration sensing device is in threaded connection with the shell, so that the shell and the vibration sensor inside the shell can be conveniently detached, the recycling of the sensor is realized, and the microseismic monitoring cost is greatly saved.
In addition, the existing microseismic sensors can only collect vibration signals in one direction, and therefore need to be densely distributed in a downhole roadway. And the utility model discloses a microseism sensor is connected with many stocks, can gather the vibration signal of a plurality of directions simultaneously through many stocks to can reduce the microseism sensor quantity of arranging in the tunnel, further practice thrift the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings provided by the present invention without any creative effort.
Fig. 1 is a schematic structural view of a microseismic sensor device for monitoring mine geological disasters provided by the utility model;
fig. 2 is a schematic structural view of the vibration sensing device provided by the present invention;
the numbers in the figures are respectively: microseismic sensor 1, casing 2, signal line 3, forming die 4, vibrations induction system 5, anchoring agent 6, device connecting rod 7, connecting ring 8, stock connecting rod 9 and stock 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a slight shock sensor device for monitoring of mine geological disasters to solve current slight shock sensor installation and waste time and energy and the sensor can not take out the problem of carrying out recycle.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is the utility model provides a slight shock sensor device's for monitoring of mine geological disasters schematic structure. As shown in fig. 1, the microseismic sensor device includes: microseismic sensor 1, casing 2, signal line 3, forming die 4 and vibrations induction system 5.
One end (the left end in the figure 1) of the shell 1 is provided with a wiring hole, and the other end (the right end in the figure 1) of the shell 1 is provided with a threaded hole. One end of the signal wire 3 is connected with the microseismic sensor 1; the other end of the signal wire 1 is led out from the wiring hole of the shell 2. The vibration sensing device 5 is placed in the forming die 4 and attached to the inner wall of the forming die 4.
Specifically, the forming mold 4 is in a horn shape with one end open, and the shape is similar to an enlarged paper cup. The forming die 4 is made of paper cup-like material or plastic. And the forming die 4 is filled with an anchoring agent 6. The open end (figure 1 right-hand member) of forming die 4 and the inner wall laminating of underworkings, that is to say that anchoring agent 6 solidifies on the inner wall of underworkings, thereby will vibrations induction system 5 is fixed on the inner wall of underworkings, and then fixes whole microseismic sensor device on the inner wall of underworkings, need not drilling, labour saving and time saving.
Further, a through hole is formed in the closed end (the left end in fig. 1) of the forming die 4. And a device connecting rod 7 of the vibration sensing device 5 is provided with threads. And the device connecting rod 7 of the vibration sensing device 5 is in threaded connection with the shell 2 through the through hole. Therefore, when the microseismic sensor device is installed, the forming die 4 and the vibration sensing device 5 can be installed firstly, and then the shell 2 is screwed with the device connecting rod 7 of the vibration sensing device 5 through threads, so that the microseismic sensor 1, the shell 2 and the signal wire 3 are fixed. When the micro-seismic sensor is disassembled, the micro-seismic sensor 1 and the vibration sensing device 5 can be separated only by unscrewing the shell 2, so that the micro-seismic sensor 1 is recycled.
Fig. 2 is a schematic structural diagram of the vibration sensing device provided by the present invention. Referring to fig. 2, the vibration sensing device 5 specifically includes a device connecting rod 7, a connecting ring 8, an anchor rod connecting rod 9, and an anchor rod 10.
The outer diameter of the connecting ring 8 is the same as the inner diameter of the closed end of the forming die 4. One end of the anchor rod 10 is rigidly connected to the connecting ring 8. When the vibration sensing device 5 is placed in the forming die 4, the connecting ring 8 is tightly attached to the closed end of the forming die 4, and the other end of the anchor rod 10 and the open end of the forming die 4 are located on the same plane. The one end of stock connecting rod 9 with the one end rigid connection of stock 10, it is specific, the one end of stock connecting rod 9 is connected stock 10 with on the tie point of clamping ring 8. The other end of the anchor rod connecting rod 9 is rigidly connected with the device connecting rod 7. The anchor rod connecting rod 9 and the connecting ring 8 are positioned on the same plane; i.e. the anchor rod 9 is also in close proximity to the closed end of the forming die 4. The device connecting rod 7 is perpendicular to the anchor rod connecting rod 9.
In order to sense vibration signals in different directions, the number of the anchor rods 10 is multiple; the anchor rods 10 are uniformly distributed on the connecting ring 8, the number of the anchor rod connecting rods 9 is the same as that of the anchor rods 10, and the anchor rod connecting rods 9 are rigidly connected with the corresponding anchor rods 10.
Preferably, the number of the anchor rods 10 is 2-4. In the embodiment shown in fig. 2, the number of the anchor rods 10 is 2, and 2 anchor rods 10 are arranged opposite to each other, so that vibration signals in two directions can be sensed, and the difference between the two directions is 180 degrees. In the embodiment shown in fig. 1, the number of the anchor rods 10 is 4 (1 is blocked and not shown), the corresponding 4 anchor rod connecting rods 9 are arranged in a cross shape, and an included angle between two adjacent anchor rod connecting rods 9 is 90 degrees, so that vibration signals in four directions can be sensed. In practical application, the number of the anchor rods 10 can be 3, so that vibration signals in three directions are sensed, and the difference between every two of the three directions is 120 degrees. The number of the anchor rods 10 is related to the roadway area and the number of monitoring points, but it is certain that the conventional micro-seismic monitoring sensor can only sense a vibration signal in one direction, and therefore the arrangement is more intensive. And the utility model discloses a microseism sensor 1 can respond to the vibration signal of a plurality of directions simultaneously, consequently can arrange comparatively sparsely to reduce microseism sensor 1's use quantity, thereby reduce microseism monitoring cost. And because the arrangement of multi-direction stock 10, even lay the quantity unanimously, the utility model discloses a microseism sensor 1 is also than traditional microseism monitoring sensor sensitivity will be high.
In practical applications, the microseismic sensor 1 may be any commercially available microseismic sensor, such as HT356B01 type microseismic sensor with a signal wire having a certain length. The signal wire can be connected with a ground data receiving and processing platform to realize real-time online microseismic monitoring in the well. The shell 2 is made of stainless steel. The anchoring agent 6 may employ SH series cement-based anchoring agents. The device connecting rod 7 adopts a high-strength deformed steel anchor rod with the diameter of 10-20mm and the length of 20-50 mm. The anchor rod 10 is a steel pipe with the diameter of 10-20 mm. The connecting ring 8 and the anchor rod connecting rod 9 are also made of steel materials.
The utility model discloses installation use of microseism sensor device as follows:
firstly, the vibration sensing device 5 shown in fig. 2 is placed in the forming die 4, and a device connecting rod 7 of the vibration sensing device is ensured to penetrate out of a through hole at the closed end of the forming die 4. The size of the through hole is consistent with the size of the periphery of the device connecting rod 7, and the sealing performance of the closed end is guaranteed. And uniformly stirring the anchoring agent 6, pouring the anchoring agent into the forming die 4, filling the forming die 4, and tightly attaching the opening end of the forming die 4 to the inner wall of the underground roadway. Because the forming die 4 is made of materials similar to paper cups or plastics and can deform to a certain extent, pressure can be slightly applied to the closed end of the forming die 4 to slightly deform the forming die 4, so that the anchoring agent 6 in the forming die 4 can be ensured to be in close contact with the inner wall of the roadway. And keeping the opening end of the forming die 4 and the tight fit state of the anchoring agent 6 and the inner wall of the roadway until the anchoring agent 6 is completely solidified. After the anchoring agent 6 is solidified, the forming die 4 and the vibration sensing device 5 can be stably bonded on the inner wall of the roadway. At the moment, the shell 2 with the microseismic sensor 1 and the signal wire 3 is connected with the device connecting rod 7 of the vibration sensing device 5 through threads, and the installation of the whole microseismic sensor device can be realized. It is visible the utility model discloses microseism sensor device's installation need not drilling, can not cause any influence to underworkings' structure and mechanical properties, and the simple installation, labour saving and time saving. Furthermore, because the device connecting rod 7 of the vibration sensing device 5 is in threaded connection with the shell 2, the shell 2 and the vibration sensor 1 inside the shell can be conveniently detached together, the recycling of the sensor 1 is realized, and the microseismic monitoring cost is greatly saved.
When using, stock 10 is used for responding to the vibration signal of a plurality of directions, and stock connecting rod 9, device connecting rod 7 and casing 2 play the effect of transmission vibration signal, guarantee that vibration signal can be gathered by microseismic sensor 1. The existing microseismic sensor can only collect vibration signals in one direction, so that the microseismic sensor needs to be densely distributed in a downhole roadway. And the utility model discloses a microseism sensor 1 is connected with many stock 10, can gather the vibration signal of a plurality of directions simultaneously through many stock 10 to can reduce the microseism sensor quantity of arranging in the tunnel, further practice thrift the cost, and improve microseism sensor 1's sensitivity.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the device and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. A microseismic sensor device for mine geological disaster monitoring, the microseismic sensor device comprising: the device comprises a micro-vibration sensor, a shell, a signal wire, a forming die and a vibration sensing device;
the microseismic sensor is fixedly arranged in the shell; one end of the shell is provided with a wiring hole, and the other end of the shell is provided with a threaded hole; one end of the signal wire is connected with the microseismic sensor; the other end of the signal wire is led out from the wiring hole of the shell; the vibration sensing device is placed in the forming die and attached to the inner wall of the forming die; the forming die is horn-shaped; the forming die is filled with an anchoring agent; the open end of the forming die is attached to the inner wall of the underground roadway; a through hole is formed in the closed end of the forming die; a device connecting rod of the vibration sensing device is provided with threads; the device connecting rod of the vibration sensing device is in threaded connection with the shell through the through hole.
2. The microseismic sensor device of claim 1 wherein the shock sensing device comprises a connecting ring, an anchor rod connecting rod and a device connecting rod;
the outer diameter of the connecting ring is the same as the inner diameter of the closed end of the forming die; one end of the anchor rod is rigidly connected with the connecting ring; the other end of the anchor rod and the opening end of the forming die are positioned on the same plane; one end of the anchor rod connecting rod is rigidly connected with one end of the anchor rod; the other end of the anchor rod connecting rod is rigidly connected with the device connecting rod; the anchor rod connecting rod and the connecting ring are positioned on the same plane; the device connecting rod is perpendicular to the anchor rod connecting rod.
3. The microseismic sensor device of claim 2 wherein the number of anchors is plural; a plurality of anchor rods are uniformly distributed on the connecting ring; the number of the anchor rod connecting rods is the same as that of the anchor rods.
4. The microseismic sensor device of claim 3 wherein the number of anchors is 2-4.
5. The microseismic sensor device of claim 2 wherein the anchor is a steel tube having a diameter of 10-20 mm.
6. The microseismic sensor device of claim 2 wherein the device connecting rod is a high strength deformed steel anchor rod of 10-20mm diameter and 20-50mm length.
7. The microseismic sensor device of claim 1 wherein the anchoring agent is an SH series cement based anchoring agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021252355.7U CN212483889U (en) | 2020-06-30 | 2020-06-30 | Micro-seismic sensor device for monitoring mine geological disasters |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021252355.7U CN212483889U (en) | 2020-06-30 | 2020-06-30 | Micro-seismic sensor device for monitoring mine geological disasters |
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| CN212483889U true CN212483889U (en) | 2021-02-05 |
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| CN202021252355.7U Active CN212483889U (en) | 2020-06-30 | 2020-06-30 | Micro-seismic sensor device for monitoring mine geological disasters |
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