CN110609316A - Protection device for microseismic monitoring sensor in tunnel and use method thereof - Google Patents
Protection device for microseismic monitoring sensor in tunnel and use method thereof Download PDFInfo
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- CN110609316A CN110609316A CN201911003907.2A CN201911003907A CN110609316A CN 110609316 A CN110609316 A CN 110609316A CN 201911003907 A CN201911003907 A CN 201911003907A CN 110609316 A CN110609316 A CN 110609316A
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- inner core
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 77
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000004873 anchoring Methods 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/162—Details
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A protection device for a microseismic monitoring sensor in a tunnel and a using method of the protection device comprise a protective shell, an inner core, an obstruction card, an annular anti-stretching strip and a pulling and pressing hook, wherein the obstruction card is fixed on one side in the protective shell, the annular anti-stretching strip stretches into the protective shell from the other side, the inner core is limited between the obstruction card and the annular anti-stretching strip, a hook is arranged at the rear end of the inner core, and the sensor is installed at the front end of the inner core. Compared with the prior art, the invention has the beneficial effects that: on the premise of ensuring the monitoring effect, the invention can effectively avoid the damage of the sensor caused by spray protection, and meanwhile, the device is convenient and quick to install and disassemble, does not need professional personnel and has high installation efficiency; the required material is simple, and installation device and sensor can used repeatedly, practice thrift the cost greatly.
Description
Technical Field
The invention relates to the field of rock engineering, in particular to a protection device for a microseismic monitoring sensor in a tunnel and a using method thereof.
Background
In the working environment of tunnel TBM construction, the micro-seismic monitoring system needs to keep a short distance between a sensor and a tunnel face as much as possible in order to better receive a micro-seismic signal near the working face, and is influenced by the construction process, the position of the sensor after the installation is finished needs to be protected and reinforced by mortar spraying, the sensor is easily damaged in the spraying and protecting process, the normal operation of the micro-seismic monitoring system is influenced, the continuity and effectiveness of micro-seismic data cannot be guaranteed, and property loss caused by equipment is damaged.
Disclosure of Invention
The invention aims to provide a protection device for a microseismic monitoring sensor in a tunnel and a use method thereof, which can effectively avoid the damage of the sensor caused by spray protection on the premise of ensuring the monitoring effect, and meanwhile, the device is convenient and quick to mount and dismount, and the mounting device and the sensor can be repeatedly recycled, thereby greatly saving the cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a microseism monitoring sensor protection device in tunnel, includes protective housing, inner core, hinders the card, cyclic annular prevents flexible strip, draws the pressure hook, hinder one side that the card was fixed in the protective housing, cyclic annular prevents that flexible strip stretches into from the opposite side of protective housing, and the inner core is spacing in hindering the card and cyclic annular prevents between the flexible strip, is equipped with the crotch at the rear end of inner core, and the sensor is installed at the front end of inner core.
The inner core is a cylinder with two-stage diameters, one end with a large diameter is matched with the inner diameter of the protective shell, one end with a small diameter is provided with an external thread, the end face of one end with a small diameter is provided with an inner hexagonal groove, and the inner hexagonal groove is connected with a cap in a threaded mode.
The protective housing comprises a protective cover A, a protective cover B and an anchor sheet, wherein the protective cover A is in threaded connection with one end of the protective housing, the protective cover B is in threaded connection with the other end of the protective housing, and the anchor sheet is fixed to the outer side of the protective housing.
The tension and compression hook comprises a hook head and a plurality of sections of hook rods, the hook head is hinged with the plurality of sections of hook rods, and the hinged points are connected through screws and nuts.
A use method of a protection device of a microseismic monitoring sensor in a tunnel comprises the following steps:
1) stretching in the protective shell from the bottom of the protective shell by using a pulling and pressing hook, pushing the inner core to the head of the protective shell, screwing a nut on one end of a bolt matched with the sensor, putting the nut into the inner hexagonal groove of the inner core, penetrating through the cap, screwing the cap on the external thread of the inner core, and fixing the bolt and the nut;
2) screwing the sensor on the bolt, hooking a hook at the rear end of the inner core by using a pulling and pressing hook, and pulling the inner core to a blocking position;
3) the annular anti-stretching strip is installed from the front end of the protective shell, a cable at the bottom of the sensor penetrates through the protective cover A, the protective cover A is screwed at the front end of the protective shell, the annular anti-stretching strip is in contact with the inner core, the inner core is fixed between the annular anti-stretching strip and the blocking card, and the sensor is fixed in the protective device.
The use method of the pulling and pressing hook comprises the following steps: loosening the screw and the nut, straightening the hook head and the sections of the hook rods, and fixing the straightened hook head and the sections of the hook rods by tightening the screw and the nut; after the screw and the nut are unscrewed, the pulling and pressing hook is folded and placed at the bottom of the protective shell, and the protective cover B is screwed on the protective shell.
Compared with the prior art, the invention has the beneficial effects that:
on the premise of ensuring the monitoring effect, the invention can effectively avoid the damage of the sensor caused by spray protection, and meanwhile, the device is convenient and quick to install and disassemble, does not need professional personnel and has high installation efficiency; the required material is simple, and installation device and sensor can used repeatedly, practice thrift the cost greatly.
Drawings
Fig. 1 is a schematic structural diagram of a protection device for a microseismic monitoring sensor in a tunnel according to the present invention.
Fig. 2 is a schematic structural view of the tension/compression hook of the present invention.
Fig. 3 is a schematic view of the installation position of the protection device for the microseismic monitoring sensor in the tunnel according to the present invention.
In the figure: 1-protective shell; 2-protective cover A; 3-protective cover B; 4-an anchor tab; 5-inner core; 6-a nut; 7-hooking; 8-capping; 9-a sensor; 10-ring-shaped anti-telescoping strips; 11-cable wires; 12-a barrier card; 13-pulling and pressing the hook; 14-surrounding rock.
Detailed Description
The present invention will be described in detail below, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-3, a protection device for a tunnel microseismic monitoring sensor comprises a protective shell 1, an inner core 5, a blocking card 12, an annular anti-stretching strip 10 and a pulling and pressing hook 13, wherein the blocking card 12 is fixed on one side of the protective shell 1, the annular anti-stretching strip 10 extends from the other side of the protective shell 1, the inner core 5 is limited between the blocking card 12 and the annular anti-stretching strip 10, a hook 7 is arranged at the rear end of the inner core 5, and a sensor 9 is arranged at the front end of the inner core 5.
The inner core 5 is a cylinder with two-stage diameters, one end with a large diameter is matched with the inner diameter of the protective shell 1, one end with a small diameter is provided with an external thread, the end face of one end with a small diameter is provided with an inner hexagonal groove, and the inner hexagonal groove is connected with a cap 8 in a threaded mode. The cap 8 is provided with a through hole having a diameter matching the diameter of the bolt to which the sensor 9 is attached.
The protective shell 1 comprises a protective cover A2, a protective cover B3 and an anchor piece 4, wherein the protective cover A2 is in threaded connection with one end of the protective shell 1, the protective cover B3 is in threaded connection with the other end of the protective shell 1, and the anchor piece 4 is fixed on the outer side of the protective shell 1. When the protective cover A2 is screwed, the annular anti-telescoping strip 10 is tightly pressed against the inner core 5, so that the inner core 5 is prevented from sliding to influence the work of the sensor 9.
The pull-press hook 13 comprises a hook head and a plurality of sections of hook rods, the hook head is hinged with the plurality of sections of hook rods, and the hinged points are connected through screws and nuts.
A use method of a protection device of a microseismic monitoring sensor in a tunnel comprises the following steps:
1) the pulling and pressing hook 13 is used for stretching into the protective shell 1 from the bottom, the inner core 5 is pushed to the head of the protective shell 1, a nut is screwed at one end of the bolt matched with the sensor 9, the nut is placed into the inner hexagonal groove of the inner core 5 and then penetrates through the cap 8, and the cap 8 is screwed on the external thread of the inner core 5 to fix the bolt and the nut.
The middle part of the inner core 5 is provided with an inner hexagonal groove, so that bolts and nuts with positive and negative threads can be freely replaced to adapt to the sensors 9 with threads in different directions, and the application range of the invention is wider.
2) The sensor 9 is screwed on the bolt, the hook 7 at the rear end of the inner core 5 is hooked by the pulling and pressing hook 13, and the inner core 5 is pulled to the position of the blocking clamp 12.
3) The annular anti-telescoping strip 10 is installed from the front end of the protective shell 1, the cable 11 at the bottom of the sensor 9 penetrates through the protective cover A2, the protective cover A2 is screwed at the front end of the protective shell 1, the annular anti-telescoping strip 10 is in contact with the inner core 5, the inner core 5 is fixed between the annular anti-telescoping strip 10 and the blocking card 12, and the fixing of the sensor 9 in the protective device is completed.
And (3) placing the protection device at a proper position, and connecting the anchoring sheet 4 with the cave wall rock mass by using an anchoring agent to complete the installation of the protection device.
When the sensor is disassembled, the anchoring agent is broken by using an iron hammer, the protection device is taken down, and then the sensor is taken down in the step opposite to the step of installing the sensor, so that the disassembly of the sensor is completed.
The use method of the pulling and pressing hook 13 comprises the following steps: loosening the screw and the nut, straightening the hook head and the sections of the hook rods, and fixing the straightened hook head and the sections of the hook rods by tightening the screw and the nut; after the screw and the nut are unscrewed, the pulling and pressing hook 13 is folded and placed at the bottom of the protective shell 1, and the protective cover B3 is screwed on the protective shell 1. The pulling and pressing hook 13 can be folded, so that the storage and the taking are convenient.
The protective shell 1, the inner core 5, the tension and compression hook 13 and the annular anti-telescoping strip 10 are all made of steel materials. The steel material is adopted, the processing and the manufacturing are simple and convenient, the manufacturing cost is low, the weight is light, the strength is high, and the steel material can continuously work in a high-temperature high-humidity environment.
The device of the invention can ensure that the sensor can smoothly receive the microseismic signal of the rock mass without influencing the waveform quality.
Example 1:
the inner diameter of the protective shell 1 is 100mm, the length of the protective shell is 300mm, the heights of the protective covers A2 and B3 are 20mm, the thickness of the annular anti-telescoping strip 10 is 5mm, the diameter of the annular anti-telescoping strip is 10mm smaller than the inner diameter of the protective shell 1, the distance between the blocking card 12 and the bottom of the protective shell 1 is 40mm, the width of the anchoring piece 4 is 50mm, and the height of the anchoring piece is 100.
The length of the inner core 5 is 50mm, the radius of the head within the length range of 20mm is 25mm, the radius of the rear 30mm length is 50mm, the diameter of a middle hole of the cap 8 is 8mm, the diameter of the middle hole is matched with the diameter of a bolt, the length of the hook 7 is 40mm, and the hook and the inner core are connected into a whole.
The tension and compression hook 13 is 200mm in length and 5mm in diameter, and is provided with a hinge point every 40 mm.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a microseism monitoring sensor protection device in tunnel, its characterized in that includes protective housing, inner core, hinders the card, cyclic annular flexible strip, draws the pressure hook of preventing, hinder one side that the card was fixed in the protective housing, cyclic annular flexible strip of preventing stretches into from the opposite side of protective housing, and the inner core is spacing between hindering card and cyclic annular flexible strip of preventing, is equipped with the crotch at the rear end of inner core, and the sensor is installed at the front end of inner core.
2. The protection device for the microseismic monitoring sensor in the tunnel according to claim 1, wherein the inner core is a cylinder with two-stage diameter, the end with large diameter is matched with the inner diameter of the protection shell, the end with small diameter is provided with an external thread, the end surface of the end with small diameter is provided with an inner hexagonal groove, and a cap is screwed on the end surface of the end with small diameter.
3. The protection device for the in-tunnel microseismic monitoring sensor as recited in claim 1, wherein the protective shell comprises a protective cover A, a protective cover B and an anchoring piece, the protective cover A is screwed at one end of the protective shell, the protective cover B is screwed at the other end of the protective shell, and the anchoring piece is fixed at the outer side of the shell of the protective shell.
4. The protection device for the in-tunnel microseismic monitoring sensor as recited in claim 1, wherein the pulling and pressing hook comprises a hook head and a plurality of sections of hook rods, the hook head and the plurality of sections of hook rods are hinged with each other, and the hinged points are connected through screws and nuts.
5. A use method of the protection device for the microseismic monitoring sensor in the tunnel according to any one of the claims 1 to 4, which is characterized by comprising the following steps:
1) stretching in the protective shell from the bottom of the protective shell by using a pulling and pressing hook, pushing the inner core to the head of the protective shell, screwing a nut on one end of a bolt matched with the sensor, putting the nut into the inner hexagonal groove of the inner core, penetrating through the cap, screwing the cap on the external thread of the inner core, and fixing the bolt and the nut;
2) screwing the sensor on the bolt, hooking a hook at the rear end of the inner core by using a pulling and pressing hook, and pulling the inner core to a blocking position;
3) the annular anti-stretching strip is installed from the front end of the protective shell, a cable at the bottom of the sensor penetrates through the protective cover A, the protective cover A is screwed at the front end of the protective shell, the annular anti-stretching strip is in contact with the inner core, the inner core is fixed between the annular anti-stretching strip and the blocking card, and the sensor is fixed in the protective device.
6. The use method of the protection device for the tunnel microseismic monitoring sensor of claim 5 wherein the use method of the tension and compression hook comprises the following steps: loosening the screw and the nut, straightening the hook head and the sections of the hook rods, and fixing the straightened hook head and the sections of the hook rods by tightening the screw and the nut; after the screw and the nut are unscrewed, the pulling and pressing hook is folded and placed at the bottom of the protective shell, and the protective cover B is screwed on the protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003907.2A CN110609316B (en) | 2019-10-22 | 2019-10-22 | Protection device for microseismic monitoring sensor in tunnel and application method of protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003907.2A CN110609316B (en) | 2019-10-22 | 2019-10-22 | Protection device for microseismic monitoring sensor in tunnel and application method of protection device |
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| CN110609316A true CN110609316A (en) | 2019-12-24 |
| CN110609316B CN110609316B (en) | 2024-06-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637913A (en) * | 2020-04-21 | 2020-09-08 | 中交第四公路工程局有限公司 | Comprehensive protection device for pre-embedded wired sensor |
| CN112554867A (en) * | 2020-12-23 | 2021-03-26 | 中南大学 | Recyclable embedded sensor mounting and fixing system and mounting method |
| CN112684496A (en) * | 2020-12-14 | 2021-04-20 | 大连理工大学 | Recoverable micro-seismic monitoring sensor anti-collapse hole protection device based on double-layer protection and use method |
| CN112925014A (en) * | 2021-01-28 | 2021-06-08 | 吉首大学 | Microseismic monitoring sensor assembly based on high-position installation and removal method thereof |
| CN112946731A (en) * | 2021-01-28 | 2021-06-11 | 吉首大学 | Dual-protection microseismic monitoring sensor assembly and mounting and dismounting method thereof |
| CN113640867A (en) * | 2021-07-23 | 2021-11-12 | 辽宁科技大学 | Installation device and installation method of water burst area micro-seismic sensor |
| CN114114398A (en) * | 2021-11-19 | 2022-03-01 | 大连理工大学 | Anti-collapse hole protection device of micro-seismic monitoring sensor, control method, medium and application |
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