CN104536040A - TSP sound-control triggering system - Google Patents
TSP sound-control triggering system Download PDFInfo
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- CN104536040A CN104536040A CN201410803787.5A CN201410803787A CN104536040A CN 104536040 A CN104536040 A CN 104536040A CN 201410803787 A CN201410803787 A CN 201410803787A CN 104536040 A CN104536040 A CN 104536040A
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- intermediate plate
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Abstract
The invention relates to a TSP sound-control triggering system. The TSP sound-control triggering system comprises a blasting machine, delay detonators, a sound control trigger, a TSP recording unit and a TSO receiving unit, wherein the blasting machine is connected with the delay detonators and controls explosion of the delay detonators, the sound control trigger is connected with the TSP recording unit, and the TSP recording unit is connected with the TSP receiving unit; after the blasting machine detonates the delay detonators, sound wave signals generated by the delay detonators open the sound control trigger, the sound control trigger sends a recording starting signal to the TSP recording unit, and the TSP recording unit begins to record earthquake wave data received by the TSP receiving unit. The situation that when the delay detonators is used for carrying out TSP geological forecast, initial recording signals are sent too early, so that reflection signals of earthquake waves are not recorded completely, and recording time errors are caused due to detonation time differences of the delay detonators is effectively avoided. In addition, the TSP initial recording signal sound control trigger has the advantages of being reasonable in structural design, convenient to operate, low in cost and the like.
Description
Technical field
The invention belongs to technical field of tunnel construction, particularly relate to a kind of TSP signal record acoustic control triggering system.
Background technology
Advance geologic prediction is as tunnel information dynamic design and indispensable part of constructing, timely forecast front of tunnel heading adverse geological condition, to adopt an effective measure in advance, avoids the generation of geologic hazard, guarantee the safety of constructing tunnel, obtain the extensive approval of engineering circles.Tunnel seismic prospecting method (TSP) is one of main method that can't harm long-term advance geologic prediction the construction time, has become one of most widely used forecasting procedure in major long tunnel information-aided construction.The method is that (focal point is usually located at the side abutment wall in tunnel at the focal point designed, 24 focus big gun holes are approximately set, the leaded explosive of band or detonator is placed in each detection big gun hole) excite generation seismic event with exploding on a small scale, seismic signal is propagated along direction, tunnel with the form of spherical wave, seismic signal seismic event in different rock-layers is propagated with different speed, when running into wave impedance of rock differential boundary, part seismic signal will be reflected, and another part seismic signal then transmission enters front medium continuation propagation.The seismic signal reflected will be received by high sensitivity geophone, then by TSP win software analysis front rock property, joint fissure distribution, soft stratum and water status etc., the angle that final display various country rock structural interface is crossing with tunnel axis to be presented and the distance apart from face, and can the parameter such as elastic modulus, density, Poisson ratio of Preliminary Determination rock for ginseng.Tunnel seismic prospecting method (TSP), in use only have employing immediately detonate electric detonator device time, the time of reception intactly receiving that just can accurately calculate reflected signal transmits, thus geological condition before correct analysis.But, due to the relevant regulations of the Ministry of Public Security, instantly the primer detonator that working-yard uses mostly is delay electric detonator, and due to the defect of manufacture craft, the priming network design time of each detonator is uneven, cause reflected signal pass back the time often exceed seismoreceiver receive time interval, cause most of reflected signal lack and the arrival time error that transmits, cause insoluble difficulty to the process of later stage TSP win software to data.
Summary of the invention
For defect of the prior art and deficiency, tunnel seismic prospecting method (TSP) is when using delayed ignition detonator as focus to the object of the present invention is to provide one to guarantee, seismoreceiver can be complete and receive a kind of TSP acoustic control triggering system of reflected signal accurately.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of TSP acoustic control triggering system, this system comprises det, delay detonator, acoustic control trigger, TSP record cell and TSP receiving element, wherein:
Described det is connected with delay detonator, controls the blast of delay detonator;
Described acoustic control trigger is connected with TSP record cell, and TSP record cell is connected with TSP receiving element;
After delay detonator is ignited by det, acoustic control trigger is opened by the acoustic signals that delay detonator produces, and acoustic control trigger sends start record signal to TSP record cell, and TSP record cell starts to record the seismic data that TSP receiving element receives.
Concrete, described acoustic control trigger is for connect trigger with audio-switch, and by the unlatching of audio-switch control trigger, the MIC microphone model of audio-switch is ECM4015-L.
In addition, this system also comprises acoustic control igniter bracket, described acoustic control igniter bracket comprises connecting link, slidably fastener and fixed fastener, slidably fastener is arranged on one end of connecting link perpendicular to the axis of connecting link, fixed fastener is arranged on the other end of connecting link perpendicular to the axis of connecting link, acoustic control trigger is arranged on the connecting link slidably between fastener and fixed fastener, slidably fastener is fixed in the inoperative borehole that work borehole is adjacent, and fixed fastener is fastened in work borehole;
On work borehole, the acoustic signals of delay detonator passes to acoustic control trigger by acoustic control igniter bracket.
Concrete, described connecting link is the reeded rod component of band, and the groove of this rod component is arranged along the axis of rod component, and along the chute that is axially arranged with of groove;
Described slidably fastener comprises the first intermediate plate, the second intermediate plate, slide plate and chute, first intermediate plate is arranged by the axis of slide plate perpendicular to connecting link, and the first intermediate plate slides along chute by slide plate, second intermediate plate and the first intermediate plate be arranged in parallel, and the second intermediate plate slides along chute by slide plate;
Described fixed fastener comprises the 3rd intermediate plate, and the 3rd intermediate plate is arranged perpendicular to the axial restraint of connecting link.
Further, be fixed with spring between the first described intermediate plate and the second intermediate plate, and the junction of the second intermediate plate and slide plate is provided with hinge.
Or the first described intermediate plate, the second intermediate plate are identical with the shape of the 3rd intermediate plate and be half slot component.
Or the first described intermediate plate outside is provided with anti-skid rubber cushion, the second described intermediate plate outside is provided with anti-skid rubber cushion, and the 3rd described intermediate plate outside is provided with anti-skid rubber cushion.
Compared with prior art, the invention has the advantages that:
(1) TSP signal record acoustic control triggering system provided by the invention, audio-switch is adopted to replace manually operated rotary switch, start TSP repacking instantaneously at blasting cap detonation to trigger box and send a home record signal accurately to record cell, the seismic reflection signal that blast is produced is by accurate and complete documentation; Wall is exempted from TSP and is triggered box and send original records signal prematurely and the error of reflected signal writing time that causes reflected signal to exceed dropout caused by writing time time of arrival and cause due to delay detonator burst time different in size.
(2) by the setting of acoustic control igniter bracket, acoustic control trigger is arranged on accurately between big gun hole to be measured and idle big gun hole, effectively can avoid the damage of blast to TSP acoustic control trigger on a small scale, and receive explosive sound signal with bee-line, reduce the acoustic signals delivery time.
Accompanying drawing explanation
Fig. 1 is TSP signal record acoustic control triggering system schematic diagram of the present invention;
Fig. 2 is the scheme of installation that TSP signal record acoustic control triggering system of the present invention uses in reality;
Fig. 3 is acoustic control trigger structure figure of the present invention;
Fig. 4 is acoustic control flip-flop circuit figure of the present invention;
Fig. 5 is acoustic control igniter bracket structure front elevation of the present invention;
Fig. 6 is acoustic control igniter bracket structural representation of the present invention;
In figure, each label represents: 1-det, 2-delay detonator, 3-acoustic control trigger, 301-trigger, 302-audio-switch, 4-TSP signal recording unit, 5-TSP signal receiving unit, 6-acoustic control igniter bracket, 601-connecting link, 602-first intermediate plate, 603-second intermediate plate, 604-the 3rd intermediate plate, 605-slide plate, 606-hinge, 607-spring, 608-chute;
Below in conjunction with specification drawings and specific embodiments, the present invention will be described.
Embodiment
Tunnel seismic wave method (tunnelseismicprediction is called for short TSP), its principle is that the seismic signal produced by small pit goaf explosion is propagated along direction, tunnel with the form of spherical wave, in different rock-layers, seismic event is propagated with different speed, reflected in its interface, and received by high-precision receiver.By computer software analysis front rock property, joint fissure distribution, soft stratum and water status etc., the angle that final display screen display various country rock structural interface is crossing with tunnel axis to be presented and the distance apart from face, and can the parameter such as elastic modulus, density, Poisson ratio of Preliminary Determination rock for reference.The present invention is directed to explode mistiming between seismic event and receiving system Received signal strength of causing of delay detonator in prior art causes the defect of recording error, is connected by det, controls the blast of delay detonator with delay detonator; Acoustic control trigger is connected with TSP record cell, and TSP record cell is connected with TSP receiving element; After delay detonator is ignited by det, acoustic control trigger is opened by the acoustic signals that delay detonator produces, and acoustic control trigger sends start record signal to TSP record cell, and TSP record cell starts to record the seismic data that TSP receiving element receives; Make the writing time of TSP record cell synchronous with the burst period of detonator, the data of reception are accurately available, and the constructing tunnel for reality provides analyzes data more accurately.
The present invention utilizes the transmission of sound wave, in conjunction with the control principle of audio-switch, trigger is perfectly combined with existing audio-switch device, reach the object of the Data Collection of the simultaneously seismic wave of blasting cap detonation, solve the time delay of delay detonator and the problem of TSP register system difference writing time.
In order to more accurately by delay detonator blast produce acoustic signals receive, acoustic control trigger is arranged on around big gun hole to be measured by the present invention, reaches this object by acoustic control igniter bracket.
Acoustic control igniter bracket passes through slidably fastener and the distance of fixed fastener adjustable support between adjacent two big gun holes, thus can different borehole spacings be adapted to, slidably fastener is arranged in idle big gun hole, fixed fastener is arranged in big gun hole to be measured, acoustic control trigger is arranged on the connecting link between two fasteners, when after the delay detonator blast in big gun hole to be measured, the strong voice signal produced passes to acoustic control trigger by air and acoustic control igniter bracket, makes trigger send the record that a signal of starting working carries out data to TSP record cell.
In addition, in order to acoustic control igniter bracket is firmly arranged on big gun hole, avoid the impact of intense impact ripple to support of delay detonator explosion time to make it fall causing the damage of device, the axis being parallel to connecting link between the first intermediate plate and the second intermediate plate arranges spring, first intermediate plate and the second intermediate plate are firmly pushed up and is combined in the idle big gun hole near apart from big gun Kongzui to be measured, and in order to the first intermediate plate and the position of the second intermediate plate on connecting link can easily be regulated, in the junction of the second intermediate plate and slide plate, hinge is set, the freedom of movement of the second intermediate plate is increased, thus coordinate the activity of the first intermediate plate more easily.
Further, in order to the respective outer side edges with tubular big gun hole, the shape of the first intermediate plate, the second intermediate plate and the 3rd intermediate plate is all set to half slot component, and in order to increase contact friction, all arranges anti-skid rubber cushion at the outside surface of the first intermediate plate, the second intermediate plate and the 3rd intermediate plate.
Below in conjunction with specific embodiment, the present invention is specifically described.
Embodiment one:
Composition graphs 1, the TSP acoustic control triggering system of the present embodiment, comprise det, delay detonator, acoustic control trigger, TSP record cell and TSP receiving element, det is connected with delay detonator, controls the blast of delay detonator; Acoustic control trigger is connected with TSP record cell, and TSP record cell is connected with TSP receiving element; After delay detonator is ignited by det, acoustic control trigger is opened by the acoustic signals that delay detonator produces, and acoustic control trigger sends start record signal to TSP record cell, and TSP record cell starts to record the seismic data that TSP receiving element receives;
The det of the present embodiment is chosen as the FD200 type blasting machine of explosion-proof electrification company limited of Zhejiang Zhengan County production, delay detonator is chosen as half second delay electric detonator that Beijing detonator company produces, trigger is chosen as the trigger in the TSP203 system component of Amberg company of Switzerland development, TSP record cell is TSP203 record cell (it basic composition is electronic component and a portable computer of seismic signal A/D conversion) and the TSP win software of the development of Amberg company of Switzerland, TSP receiving element is the high sensitivity geophone (SS-20H type) in the TSP203 system component of Amberg company of Switzerland development,
Composition graphs 2, the TSP acoustic control triggering system of the present embodiment specifically comprises det 1, delay detonator 2, acoustic control trigger 3, TSP signal recording unit 4, TSP signal receiving unit 5 and acoustic control igniter bracket 6,
Composition graphs 3, acoustic control trigger 3 comprises trigger 301 and audio-switch 302, composition graphs 4, acoustic control trigger 3 circuit diagram in the present embodiment is connected with trigger by the sound controling switch circuit that IC-CD4011 integrated circuit forms, MIC microphone model in circuit is ECM4015-L, receive intensity of acoustic wave when reaching requirement, sending can for the voltage of circuit ON.
Composition graphs 5 and 6, acoustic control igniter bracket 6 comprises connecting link 601, first intermediate plate 602, second intermediate plate 603, the 3rd intermediate plate 604, slide plate 605, hinge 606, spring 607 and chute 608,
Connecting link 601 is the reeded rod component of band, and the groove of this rod component is arranged along the axis of rod component, and is axially arranged with chute 608 along groove; Slide plate 605 can be fixed by screw component and slidably be plugged on chute 608, and during tighten the screws, slide plate 605 maintains static, and when unclamping screw, slide plate 605 can slide along chute 608;
First intermediate plate 602 is arranged by the axis of slide plate 605 perpendicular to connecting link 601, and the first intermediate plate 602 slides along chute 608 by slide plate 605, second intermediate plate 603 and the first intermediate plate 602 be arranged in parallel, and the second intermediate plate 603 slides along chute by slide plate 605; 3rd intermediate plate 604 is arranged perpendicular to the axial restraint of connecting link 601;
Be installed with spring between the first intermediate plate 602 and the second intermediate plate 603, and the second intermediate plate 603 is provided with hinge 606 with the junction of slide plate 605; First intermediate plate 602, second intermediate plate 603 is identical with the shape of the 3rd intermediate plate 604 and be half slot component; The outside of the first intermediate plate 602, second intermediate plate 603 and the 3rd intermediate plate 604 is provided with anti-skid rubber cushion.
TSP acoustic control trigger installation process of the present invention is:
(1) first by big gun work, delay detonator 2 is loaded in big gun hole to be measured, and blasting cable is picked out (attention: in order to ensure personal security, blasting cable and initiator should remain open state), then acoustic control trigger 3 is connected with TSP record cell 4 with blasting cable by geologic prediction personnel, and acoustic control trigger 3 is arranged on acoustic control igniter bracket 6, wire is passed by the wire casing on acoustic control igniter bracket 6;
(2) the 3rd intermediate plate 604 is placed on in big gun hole to be measured, unclamp the fixed screw between slide plate 605 and chute 608, first intermediate plate 602 and the second intermediate plate 603 are closed up and inserts in adjacent idle big gun hole, big gun hole to be measured, the second intermediate plate 603 is regulated to make it be adjacent to big gun hole to be measured inwall again, tighten the fixed screw of slide plate 605, three intermediate plates are made firmly to be fastened on big gun hole wall, TSP receiving element 5 and TSP record cell 4 is connected with signal wire, connect det 1 and delay detonator 2, complete the installation process of TSP original records signal acoustic control trigger.
Claims (7)
1. a TSP acoustic control triggering system, is characterized in that, this system comprises det, delay detonator, acoustic control trigger, TSP record cell and TSP receiving element, wherein:
Described det is connected with delay detonator, controls the blast of delay detonator;
Described acoustic control trigger is connected with TSP record cell, and TSP record cell is connected with TSP receiving element;
After delay detonator is ignited by det, acoustic control trigger is opened by the acoustic signals that delay detonator produces, and acoustic control trigger sends start record signal to TSP record cell, and TSP record cell starts to record the seismic data that TSP receiving element receives.
2. TSP acoustic control triggering system as claimed in claim 1, it is characterized in that, described acoustic control trigger is for connect trigger with audio-switch, and by the unlatching of audio-switch control trigger, and the MIC microphone model of audio-switch is ECM4015-L.
3. TSP acoustic control triggering system as claimed in claim 1 or 2, it is characterized in that, this system also comprises acoustic control igniter bracket (6), described acoustic control igniter bracket (6) comprises connecting link (601), slidably fastener and fixed fastener, slidably fastener is arranged on one end of connecting link (601) perpendicular to the axis of connecting link, fixed fastener is arranged on the other end of connecting link (601) perpendicular to the axis of connecting link, acoustic control trigger is arranged on the connecting link (601) slidably between fastener and fixed fastener, slidably fastener is fixed in the inoperative borehole that work borehole is adjacent, fixed fastener is fastened in work borehole,
On work borehole, the acoustic signals of delay detonator passes to acoustic control trigger by acoustic control igniter bracket (6).
4. TSP acoustic control triggering system as claimed in claim 3, it is characterized in that, described connecting link (601) is the reeded rod component of band, and the groove of this rod component is arranged along the axis of rod component, and is axially arranged with chute (608) along groove;
Described slidably fastener comprises the first intermediate plate (602), the second intermediate plate (603), slide plate (605) and chute (608), first intermediate plate (602) is arranged by the axis of slide plate (605) perpendicular to connecting link (601), and the first intermediate plate (602) slides along chute (608) by slide plate (605), second intermediate plate (603) and the first intermediate plate (602) be arranged in parallel, and the second intermediate plate (603) slides along chute (608) by slide plate (605);
Described fixed fastener comprises the 3rd intermediate plate (604), and the 3rd intermediate plate (604) is arranged perpendicular to the axial restraint of connecting link (601).
5. TSP acoustic control triggering system as claimed in claim 4, it is characterized in that, be fixed with spring (607) between described the first intermediate plate (602) and the second intermediate plate (603), and the second intermediate plate (603) is provided with hinge (606) with the junction of slide plate (605).
6. the TSP acoustic control triggering system as described in claim 4 or 5, is characterized in that, described the first intermediate plate (602), the second intermediate plate (603) are identical with the shape of the 3rd intermediate plate (604) and be half slot component.
7. the TSP acoustic control triggering system as described in claim 4 or 5, it is characterized in that, described the first intermediate plate (602) outside is provided with anti-skid rubber cushion, described the second intermediate plate (603) outside is provided with anti-skid rubber cushion, and the 3rd described intermediate plate (604) outside is provided with anti-skid rubber cushion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410803787.5A CN104536040B (en) | 2014-12-19 | 2014-12-19 | TSP acoustic controls trigger system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410803787.5A CN104536040B (en) | 2014-12-19 | 2014-12-19 | TSP acoustic controls trigger system |
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| CN104536040A true CN104536040A (en) | 2015-04-22 |
| CN104536040B CN104536040B (en) | 2017-08-01 |
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Cited By (3)
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| EP3287814A1 (en) * | 2016-08-23 | 2018-02-28 | Amberg Technologies AG | Method of exploration ahead and aside in tunnelling |
| CN108732615A (en) * | 2018-03-29 | 2018-11-02 | 中铁第六勘察设计院集团有限公司 | Seismic reflection method advanced geology prediction system blasting cap initiation alarming device |
| CN111931320A (en) * | 2020-07-21 | 2020-11-13 | 广芯微电子（广州）股份有限公司 | TSP algorithm-based power switch series connection scheme |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109375256B (en) * | 2018-09-03 | 2020-05-26 | 山东大学 | Detonation auxiliary device and method suitable for advanced geological prediction of TSP tunnel |
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Cited By (4)
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Granted publication date: 20170801 Termination date: 20181219 |