CN105911150B - Recoverable country rock rupture monitoring acoustic emission sensor mounting device and method - Google Patents

Recoverable country rock rupture monitoring acoustic emission sensor mounting device and method Download PDF

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Publication number
CN105911150B
CN105911150B CN201610294524.5A CN201610294524A CN105911150B CN 105911150 B CN105911150 B CN 105911150B CN 201610294524 A CN201610294524 A CN 201610294524A CN 105911150 B CN105911150 B CN 105911150B
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China
Prior art keywords
sensor
recycling box
pipe
protection pipe
recoverable
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CN105911150A (en
Inventor
吴顺川
陈钒
黄小庆
许学良
严琼
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University of Science and Technology Beijing USTB
Powerchina Roadbridge Group Co Ltd
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University of Science and Technology Beijing USTB
Powerchina Roadbridge Group Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/223Supports, positioning or alignment in fixed situation

Abstract

A kind of recoverable country rock rupture monitoring acoustic emission sensor mounting device of present invention offer and method, belong to mine and tunnel safety monitoring technical field.The fixing hoop of the device is installed on fixed station, fixed station is installed on installation inside pipe wall, fixed block tongue is installed on recycling box back, sensor is placed in recycling box, sensor signal lines are pierced by recycling box, recycling box is fixed on fixed station by fixed block tongue with fixing hoop, and wire drawing is connected to outside recycling box.In use, the protection pipe equipped with sensor is placed in drilling, the coupling of protection pipe and drilling is carried out with binding material, and after completing monitoring, sensor is taken out with recycling box from protection pipe rear end;The device can effectively solve the problems such as sensor is difficult to recycle, is not easy to install, have many advantages, such as that reliability is high, monitoring signals are high-quality, quick and easy for installation and sensor recoverable, operation difficulty and economic cost are reduced, installation effectiveness is improved, is conducive to field popularization application.

Description

Recoverable country rock rupture monitoring acoustic emission sensor mounting device and method
Technical field
The present invention relates to mine and tunnel safety monitoring technical fields, particularly relate to a kind of recoverable country rock rupture monitoring Acoustic emission sensor mounting device and method.
Background technology
Underground passage tunnels and ore extraction all needs to deep rock mass excavate or explosion, and the excavation of rock mass and quick-fried It is broken to generate strong disturbance to protolith, cause tunnel or drilling surrounding rock body to generate phenomena such as rupturing.It is applied in mine working Work, chamber and deep tunnel excavate etc. in engineerings, deep tunnel and tunnel is disturbed by Excavation blasting or goaf is given a shock Disturbance etc., there may be dynamic disasters such as rock bursts, destructive power is very big, seriously threatens underground or tunneling operation personnel and equipment peace Entirely, the safety in production to mine and tunnel brings hidden danger.Sound emission monitoring technology and equipment can monitor inside rock mass in real time Micro rupture signal captures dynamic disaster and causes calamity precursor information, can be carried out to disasters such as rock burst, bumps through signal processing analysis Prediction.
Traditional country rock rupture monitoring acoustic emission sensor is installed on country rock surface mostly, not only can be by ambient noise Interference, also often touches off damage by construction personnel or machinery, influences monitoring effect.Another mounting means is to pacify sensor Loaded on bore inner, it although avoiding the above drawback, will cause sensor that can not recycle using which, and cause resource unrestrained Take.
Underground or tunnel monitoring sensor are close to country rock wall surface mostly at present or it is axially installed towards along drilling, And sensor is mostly unidirectional transducer, the acoustic emission signal reception that this installation method ruptures borehole circumference is weaker, The problems such as presence signal identification is low.However, the dynamic disasters such as country rock rock burst or bump mostly occur in greatly country rock near surface, Country rock near zone acoustic emission signal is monitored so should focus on.Other undergrounds or tunnel monitoring sensor install patent Such as 104407059A, 204086563U, 103558630A are only capable of installing a sensor in bore inner, due to sensor The interference etc. of not coupling contact, signals transmission sensor failure or signal recognition degree may be led to problems such as low.
To avoid the deficiency of traditional acoustic emission sensor installation method, need one kind suitable for the environment such as underground or tunnel Recoverable and calamity signal the acoustic emission sensor installation method and device that are effectively received can be caused to country rock near field.
Invention content
The technical problem to be solved in the present invention is to provide a kind of recoverable country rocks to rupture monitoring acoustic emission sensor installation Device and method, to make up the deficiency under conventional well or in a manner of tunnel surrounding rupture acoustic emission monitor(ing).
The device includes protection pipe, fixed station, fixing hoop and retracting device, and protection pipe includes tube head, installing pipe and company It takes over, protection pipe front end is tube head, and protection pipe middle section is alternately connected by connecting tube and installing pipe to be formed, and protection pipe rear end is Connecting tube, retracting device include fixed block tongue, recycling box, spring and wire drawing;Fixing hoop is mounted on fixed station, fixed station peace Mounted in the inner wall of installing pipe, and with the inner wall coupling contact of installing pipe, fixed block tongue is mounted on the back of recycling box, sensor peace In recycling box, sensor is connect with sensor signal lines, and sensor signal lines are pierced by recycling box from recycling box grooving, recycling Box is mounted on by fixing hoop and fixed block tongue clamping on fixed station, and wire drawing is connected to outside recycling box, and spring is mounted on back It receives inside box.
Spring provides extruding force, so that sensor is in close contact with fixed station and couples.
Fixed station is mounted on installation inside pipe wall in the form of bonding or welding, and tube head, installing pipe and connecting tube pass through pre- Screw thread processed or sealing cushion rubber or bonding or the mode of welding are connected with each other, setting bonding coupling body outside protection pipe.
It is stretched out from protection pipe rear end after wire drawing and sensor signal wire arranging, protection pipe rear end is sealed using sealing agent, with Completely cut off external noise.
The installation method of the device is specific as follows:
A. sensor is installed on the fixed station of installing pipe;
B. the protection pipe equipped with sensor is placed in drilling, is protected using binding materials such as resin explosive roll or cement mortars The coupling of pillar and drilling;
C. after completing monitoring, sensor is taken out together with recycling box from protection pipe rear end, the recycling of sensor is completed.
Wherein, sensor vertical installing pipe is axially disposed.
Due to the limitation of mine working and tunnel width, tube head, installing pipe and connecting tube when being docked at in-site installation into Row, before protection pipe after docking is fixed, unitary rotation protection pipe, adjust sensor in drilling towards orientation.Tube head, installation Pipe and connecting tube are standard fitting, and when practical engineering application can be according to drillable length, monitoring regional extent, monitoring accuracy requirement Deng the quantity and its arrangement mode for rationally designing installing pipe and connecting tube, to meet engineering monitoring requirement.
The arrangement mode of installing pipe and connecting tube is according to sensor usage quantity and is installed on the location determination in drilling, Multiple connecting tubes can be used in the distance between installing pipe containing sensor and the installing pipe without sensor is adjusted.
The above-mentioned technical proposal of the present invention has the beneficial effect that:
Sensor is installed on inside wall rock drill-hole by the present invention using the acoustic emission sensor retracting device specially designed, is fitted Close any angle, random length drilling in use, and suitable for the rock masses fracturing sound of arbitrary orientation in varying strength country rock Launch monitor, can effectively solve that sensor is difficult to recycle, not easy to install, fitting depth is not in place, installation position is improper And monitoring signals quality it is relatively low the problems such as, have that reliability is high, monitoring signals are high-quality, isolation noise, quick and easy for installation And the advantages that sensor recoverable, operation difficulty and economic cost are reduced, installation effectiveness is improved, has and more preferably answers With effect, it is conducive to field popularization application.
Description of the drawings
Fig. 1 is the recoverable country rock rupture monitoring acoustic emission sensor mounting device structural schematic diagram of the present invention;
Fig. 2 is in Fig. 1Part partial enlarged view;
Fig. 3 is the A-A sectional views of Fig. 1;
Fig. 4 is the B-B sectional views of Fig. 2;
Fig. 5 is the C-C sectional views of Fig. 2.
Wherein:1- bonds coupling body;2- tube heads;3- connecting tubes;4- installing pipes;5- wire drawings;6- sensor signal lines;7- is sealed Blocking agent;8- fixed stations;9- recycling boxes;10- sensors;11- springs;12- recycling box groovings;13- fixing hoops;14- fixing cards Tongue;15- drills.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.
A kind of recoverable country rock rupture monitoring acoustic emission sensor mounting device of present invention offer and method.
As shown in Figure 1, for the overall structure diagram of the embodiment of the present invention, Fig. 2 is close-up schematic view in Fig. 1, figure 3, Fig. 4, Fig. 5 are respectively sectional view, and in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, protection pipe is by tube head 2, installing pipe 4 and connecting tube 3 It collectively constitutes, after protection pipe merging drilling 15, resin explosive roll, cement mortar or other binding materials can be used to form cohesive coupling Body 1 makes protection pipe and 15 coupling contacts of drilling, to reduce because of the uneven influence for rupturing acoustic emission signal to country rock of medium. Fixed station 8 bonds or is welded in 4 inner wall of installing pipe, and fixing hoop 13 is screwed in fixed station 8.Fixed block tongue 14 passes through spiral shell Silk is fixed on 9 back of recycling box, and spring 11 is installed on inside recycling box 9, the extruding force for being supplied to sensor 10 enough, returns Receipts box 9 is caught in fixing hoop 13 by fixed block tongue 14 and is tightly fastened on fixed station 8, and sensor signal lines 6 pass through recycling box Grooving 12 stretches out, and wire drawing 5 is connected in recycling box 9, with sensor signal lines 6 extend together 3 rear end of minor details connecting tube (namely Protection pipe rear end), while 3 rear end of minor details connecting tube is blocked using sealing agent 7, to completely cut off ambient noise.
When field operation, according to sensor mounting design construction requirement, concrete operation step is as follows:
(1) construction drill 15 in country rock;
(2) according to engineering demand, drilling depth, monitoring regional extent, monitoring accuracy etc. is determined, installing pipe 4 is rationally designed And connecting tube 3 quantity and its drilling 15 in mutual arrangement mode;
(3) fixing hoop 13 is installed on fixed station 8, and fixed station 8 is bonded or is welded on 4 inner wall of installing pipe;
(4) fixed block tongue 14 is installed on 9 back of recycling box, spring 11 is installed on inside recycling box 9, and sensor 10 disposes In withstanding spring 11 in recycling box 9, sensor signal lines 6 are stretched out by recycling box grooving 12, and wire drawing 5 is connected to outside recycling box 9 Portion is caught in fixing hoop 13 using fixed block tongue 14, the recycling box 9 comprising sensor 10 is installed on fixed station 8;
(5) step (3)~(4) are repeated, the sensor 10 of design quantity is installed in corresponding installing pipe 4;
(6) according to the mutual arrangement mode of designed installing pipe 4 and connecting tube 3, tube head 2 is stretched into drilling first, according to It is secondary that installing pipe 4 and connecting tube 3 connect, and connect with tube head 2, in composition protection pipe and sequence merging drilling 15, meanwhile, it will pass Sensor signal line 6 and wire drawing 5 are pierced by from 3 rear end of minor details connecting tube successively;
(7) rotate protection pipe, so that the direction of sensor 10 is met design orientation, using resin explosive roll, cement mortar or Other binding materials make protection pipe and 15 coupling contacts of drilling and fixation to form cohesive coupling body 1;
(8) sensor signal lines 6 and wire drawing 5 are made in order, and is completed end closure after minor details connecting tube 3 using sealing agent 7 The installation of sensor and retracting device.
After installing sensor according to above step, sensor signal lines 6 are connect with acoustic emission monitor(ing) host, into The real-time monitoring of row country rock destruction signals after completing monitoring, removes sealing agent 7, slowly pulls wire drawing 5 and sensor signal lines 6, So that fixed block tongue 14 is detached from fixing hoop 13, recycling box 9 and sensor 10 is pulled out from 3 rear end of minor details connecting tube in order, i.e., It can complete the recycling to sensor 10.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (7)

1. a kind of recoverable country rock rupture monitoring acoustic emission sensor mounting device, it is characterised in that:Including protection pipe, fixation Platform (8), fixing hoop (13) and retracting device, protection pipe include tube head (2), installing pipe (4) and connecting tube (3), before protection pipe End is tube head (2), and protection pipe middle section is alternately connected by connecting tube (3) and installing pipe (4) to be formed, and protection pipe rear end is connection It manages (3), retracting device includes fixed block tongue (14), recycling box (9), spring (11) and wire drawing (5);Fixing hoop (13) is mounted on On fixed station (8), fixed station (8) be mounted on installing pipe (4) inner wall, and with the inner wall coupling contact of installing pipe (4), fixing card Tongue (14) is mounted on the back of recycling box (9), and sensor (10) is mounted in recycling box (9), and sensor (10) is believed with sensor The connection of number line (6), sensor signal lines (6) are pierced by recycling box (9) from recycling box grooving (12), and recycling box (9) passes through fixing card It binds round (13) and fixed block tongue (14) clamping is mounted on fixed station (8), wire drawing (5) is connected to recycling box (9) outside, spring (11) It is internal mounted on recycling box (9).
2. recoverable country rock rupture monitoring acoustic emission sensor mounting device according to claim 1, it is characterised in that: The spring (11) provides extruding force, so that sensor (10) is in close contact with fixed station (8) and couples.
3. recoverable country rock rupture monitoring acoustic emission sensor mounting device according to claim 1, it is characterised in that: The fixed station (8) is mounted on installing pipe (4) inner wall, tube head (2), installing pipe (4) and connection in the form of bonding or welding Pipe (3) is connected with each other by way of pre-threaded or sealing cushion rubber or bonding or welding, setting bonding coupling outside protection pipe Body (1).
4. recoverable country rock rupture monitoring acoustic emission sensor mounting device according to claim 1, it is characterised in that: The wire drawing (5) and sensor signal lines (6) are stretched out after making in order from protection pipe rear end, and protection pipe rear end is sealed using sealing agent (7) Mouthful.
5. the installation method of recoverable country rock rupture monitoring acoustic emission sensor mounting device according to claim 1, It is characterized in that:Include the following steps:
A. sensor (10) is installed on the fixed station (8) of installing pipe (4);
B. the protection pipe equipped with sensor (10) is placed in drilling (15), is carried out using resin explosive roll or cement mortar binding material The coupling of protection pipe and drilling (15);
C. after completing monitoring, sensor (10) is taken out together with recycling box (9) from protection pipe rear end, returning for sensor (10) is completed It receives.
6. recoverable country rock rupture monitoring acoustic emission sensor mounting device according to claim 1, it is characterised in that: Sensor (10) the right angle setting pipe (4) it is axially disposed.
7. the installation method of recoverable country rock rupture monitoring acoustic emission sensor mounting device according to claim 5, It is characterized in that:The tube head (2), installing pipe (4) are carried out with connecting tube (3) when being docked at in-site installation, the guarantor after docking Before pillar is fixed, unitary rotation protection pipe, adjust sensor (10) in drilling (15) towards orientation.
CN201610294524.5A 2016-05-05 2016-05-05 Recoverable country rock rupture monitoring acoustic emission sensor mounting device and method Active CN105911150B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288612B (en) * 2017-05-03 2020-09-18 同济大学 Mounting device for vibration test sensor in hole
CN107045018B (en) * 2017-06-23 2020-01-10 四川大学 Recovery type on-site acoustic emission sensor
CN107132281B (en) * 2017-06-23 2020-01-10 四川大学 Acoustic emission sensor
CN107255460B (en) * 2017-06-23 2019-11-22 核工业北京地质研究院 Spring acoustic emission sensor mounting device
CN107121697B (en) * 2017-06-23 2019-12-13 四川大学 Rock burst monitoring acoustic sensor
CN109100399A (en) * 2018-07-02 2018-12-28 中铁西北科学研究院有限公司 Subgrade soil tunnel surrounding moisture content monitoring method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101726544B (en) * 2009-12-23 2011-06-08 中国科学院武汉岩土力学研究所 Protecting, fixing and retracting integration device of an acoustic emission deep hole monitoring sensor
CN103558630A (en) * 2013-11-22 2014-02-05 中煤科工集团重庆研究院有限公司 Method for installing acoustic emission sensor on mine
CN204086563U (en) * 2014-09-12 2015-01-07 长沙有色冶金设计研究院有限公司 In acoustic emission sensor on mine boring, the fixing integrating device with reclaiming is installed
CN104407059B (en) * 2014-12-20 2017-02-22 中煤科工集团重庆研究院有限公司 Mounting method and device with acoustic emission sensor recycling capacity
CN204359754U (en) * 2015-01-16 2015-05-27 湖南科技大学 A kind of rock and rocks calibrate AE sensor stationary installation
CN104677994B (en) * 2015-02-09 2018-03-16 四川大学 Monoblock type acoustic emission test sensor positioner for damage of rock test
CN205720110U (en) * 2016-05-05 2016-11-23 北京科技大学 Recoverable country rock ruptures monitoring acoustic emission sensor erecting device

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