CN1904644A - Network tunnel real time continuous leading preinforming method and device - Google Patents
Network tunnel real time continuous leading preinforming method and device Download PDFInfo
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- CN1904644A CN1904644A CN 200610019942 CN200610019942A CN1904644A CN 1904644 A CN1904644 A CN 1904644A CN 200610019942 CN200610019942 CN 200610019942 CN 200610019942 A CN200610019942 A CN 200610019942A CN 1904644 A CN1904644 A CN 1904644A
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Abstract
The invention discloses a latticing tunnel real time continuously leading forecasting method and the device. It includes the following steps: adopting metal component locating outside tunnel, on tunnel inner wall or working face field to arrange infinite distance measuring electrode B, shield electrode A1 and main electrode A0, and using cable to connect host computer at locality; the host computer emitting homopolarity impulse current of different voltage and receiving electric signal of main electrode, after processing and A/D covert, the digital signal would be input to CPU of host computer; the CPU testing apparent resistivity and apparent induced polarization ratio of the target object; comparing the tested apparent resistivity and apparent induced polarization ratio with the preset value range, the target object would be identified and displayed and alarming.
Description
Technical field
The present invention relates to a kind of tunnel real-time continuous advanced prediction method and device of networking, belong to applied geophysics electrical survey (-ing) technical field, relate in particular in face of the tunnel piercing side and peripheral water content or other poorly the electrical method forward probe and the forecasting technique of plastid.
Background technology
The constructing tunnel advanced prediction is the topmost task of constructing tunnel geological work, and the main contents of tunnel advanced prediction comprise exposure position and the influence to constructing at front of tunnel heading and tunnel perimeter of shatter belt, solution cavity, underground water, coal measure strata and other unfavorable geology bodies.
Existing advanced prediction method mainly contains engineering geological survey method, advanced levels probing method, pilot heading method and geophysical method.The engineering geological survey method is the method for using in the advanced geology for tunnel construction forecast the earliest.This method be by inquiry with the engineering geological condition of analyzing in the face of land and the tunnel, understand the geological structure characteristic in location of living in, tunnel, infer the geological condition in the place ahead.This forecasting procedure is more shallow at edpth of tunnel, construct not too and under the complicated situation very high accuracy is arranged, but under structure more complicated area and the buried bigger situation in tunnel, this method work difficulty is bigger, and accuracy is relatively poor.Advanced levels probing method and pilot heading method be parallel with the tunnel or along the tunnel positive hole axis excavation pilot heading, directly verify the geological condition in the place ahead.This method accuracy rate height, but expense costliness.
In the geophysical method, the method that is used for the tunnel forward probe mainly contains ripple method, temperature field method and resistivity method
[1] [2]Using more in the ripple method is TSP method in the seismic wave method
[3]Geological radar method in (tunnel seismic event advanced prediction) and the electromagnetic wave method
[4]The distance that the TSP method is once forecast is longer, and is higher to fault belt structure forecast accuracy, but need take the engineering time during work, and insensitive to the water content reflection, signal is subject to disturb.Forecast has higher accuracy to geological radar method to fault belt, and forecast has certain accuracy to karst, but when the tunnel advanced prediction, need take the engineering time, the distance of prediction is shorter, is inconvenient to arrange in the tunnel, influence factor is many, is used for surface exploration more; High-density electric in the resistivity method is judged better water-bearing structure, can forecast fault belt, but need arrange a plurality of electrodes during work, is subjected to the restriction in space, working-yard in the tunnel, seldom adopts.
Searching document:
[1] " highway tunnel construction advance geologic prediction technical method present Research summary ", the magazine of publishing originally " highway communication science and technology ", 2005,22 (9): 126～128,136; Author: Zhang Zhi dragon, Wang Lansheng, Wang Yuefei.
[2] " tunnel and underground works advance geologic prediction technology ", the magazine of publishing originally " tunnel construction ", 2005,25 (3): 9～11; Author: Qi Chuansheng.
[3] " TSP2003 geology advanced prediction SYSTEM SUMMARY and application thereof ", the magazine of publishing originally " railway construction journal ", 2004, (4): 27～30; Author: Shi Baisheng.
[4] " application of geological radar in vcehicular tunnel short-term geology advanced prediction ", the magazine of publishing originally " rock-soil mechanics ", 2003,24 (increasing 1): 154～157; Author: Wu Jun, Mao Hai and, Ying Song etc.
More than these geophysical methods all be a kind of forward probe method of discontinuity, can't the on-the-spot geological condition that obtains to survey the place ahead, the signal analysis difficulty is big, and there is multi-solution in the result, the normal measure of adopting is that several different methods is used in combination, but has increased the advanced prediction expense greatly so again.
Summary of the invention
The objective of the invention is to propose a kind of tunnel real-time continuous advanced prediction method and device of networking, by this method, can real-time continuous survey the geological condition that forecasts the place ahead, to plastid Realtime Alerts jeopardously such as water content, and testing result uploaded to remote control center by network real-time, realize remote monitoring and decision-making.
Technology of the present invention: the tunnel real-time continuous advanced prediction method of networking of the present invention comprises the collection and the processing of electrode detector data, and concrete steps are as follows:
(1), adopt outside the tunnel, the metalwork at tunnel inwall or workplace scene arranges infinite distance potential electrode B, guarded electrode A respectively according to the site operation concrete condition
1With central electrode A
0, and link to each other with on-the-spot main frame with cable;
(2) on-the-spot main frame is by guarded electrode A
1With central electrode A
0The loop that forms with infinite distance potential electrode B receives the electric signal of central electrode simultaneously with the pulse current of time domain or the different voltage same polarities of frequency field mode of operation synchronized transmissions, and treated and A/D is converted to digital signal, is input to host Central Processing Unit (CPU);
(3) on-the-spot host Central Processing Unit (CPU) is calculated the apparent resistivity of detection of a target body and is looked the induced polarization rate;
(4) compare according to the apparent resistivity that calculates in the step (3) and the numerical range of looking the apparent resistivity of induced polarization rate and the plurality of target body that presets and looking the induced polarization rate, with apparent resistivity with look the scope zone that the induced polarization rate falls into jointly and come recognition objective body object and visualization display and warning.
The tunnel real-time continuous advanced prediction method of described networking, by the apparent resistivity of step (3) gained with look the induced polarization rate and calculate and look specific inductive capacity, compare with the numerical range of looking specific inductive capacity of the plurality of target body that presets, determine primary election objective body scope, then in primary election objective body scope, (4) method recognition objective body object set by step.
The tunnel real-time continuous advanced prediction method of described networking, on-the-spot main frame receive electric signal synchronously by central electrode by guarded electrode and central electrode synchronized transmissions pulse current the time, the overall process of record charge and discharge.
The tunnel real-time continuous advanced prediction method of described networking, on-the-spot main frame and remote monitoring center transmit data and instruction by network interface.
Be used for the tunnel real-time continuous advanced prediction device of the networking of described method, comprise electrode system and on-the-spot main frame, electrode system comprises guarded electrode A
1, central electrode A
0, infinite distance potential electrode B, three class electrodes all adopt on-the-spot metalwork, central electrode A
0With guarded electrode A
1Form closed loop circuit with infinite distance potential electrode B, the position relation of guarded electrode and central electrode is, with the electrode vertical projection to the detection direction plane the time, and guarded electrode encirclement central electrode.
The tunnel real-time continuous advanced prediction device of described networking, guarded electrode A
1Adopt the steel arch or the anchor pole of tunnel inwall; Central electrode A
0Adopt driving head, drilling jumbo, drilling rod or anchor pole; Infinite distance potential electrode B adopts outside the tunnel or anchor pole in the tunnel or metal rod.
The tunnel real-time continuous advanced prediction device of described networking, on-the-spot main frame comprises the guarded electrode pulse current transmitter module that is connected with guarded electrode, the central electrode pulse current transmitter module that is connected with central electrode and central electrode receiver module, the output terminal of synchronizing circuit is connected with the input end of guarded electrode pulse current transmitter module and the control input end of data acquisition module with central electrode pulse current transmitter module, and the input end of synchronizing circuit is connected with system bus through interface circuit; The output terminal of central electrode receiver module is connected with system bus with the A/D modular converter through amplifying attenuator circuit, and system bus is connected with CPU (central processing unit).
System bus also is connected with warning circuit with demonstration with network interface.
The beneficial effect of the invention:
Use the present invention and can realize tunnel real-time continuous forward probe and forecast.Than existing advanced prediction equipment, beneficial effect of the present invention mainly shows:
(1) guarded electrode, central electrode and infinite distance potential electrode directly adopt existing material in the tunnel, therefore without any need for impulsing and holing, do not increase any extra quantities, and be simple; Can adjust electrode position flexibly, change investigative range and improve the detection accuracy rate; Tunnel excavating process also is a detection process simultaneously, can realize continuous probe, progressively approaches the objective body of surveying forecast simultaneously, and accuracy of the forecast and reliability can improve constantly, and verifies the forecast result gradually.
(2) guarded electrode and pulse current mission controller thereof, central electrode and pulse current mission controller thereof and reception controller are set, can adjust the emission voltage and the supply current of guarded electrode and central electrode flexibly, improve and measure the current focusing effect and survey forecast accuracy; Adjust transmission frequency flexibly, realize time domain mode of operation or frequency field mode of operation.
(3) utilize apparent resistivity, look the induced polarization rate and look three parametric synthesis such as specific inductive capacity and judge detection of a target bodies, can improve determination rate of accuracy.
(4) guarded electrode pulse current emission control module and central electrode pulse current emission control module synchronous working help measuring the stable of electric current and focusing on; Receive synchronously the central electrode electric signal, charging process and discharge process that can the complete documentation system.
(5) by network and software systems, will survey being connected of on-the-spot and remote monitoring center, can realize that data in real time shares and long-range expert diagnosis, help the expert in time according to field condition Adjustment System running parameter or mode of operation, improve the detection forecast accuracy; Help the decision maker and optimize tunnel piercing and supporting measure, take preventive measures, improve security and work efficiency, save cost.
Description of drawings
Fig. 1 is apparatus of the present invention hardware system logic diagram.
Fig. 2 is that on-the-spot exploring electrode is arranged principle schematic.
Fig. 3 system work process process flow diagram.
Fig. 4 field software workflow diagram.
Embodiment:
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, system's composition, hardware logic and the workflow of the embodiment of the invention is described.
Among Fig. 1, collection in worksite and warning system mainly are made up of electrode system 1 and on-the-spot main frame 2, and electrode system 1 comprises guarded electrode A
1, central electrode A
0With infinite distance potential electrode B, different according to on-the-spot support pattern and construction technology, guarded electrode A
1Can adopt the steel arch or the anchor pole of tunnel inwall, central electrode A
0Can adopt driving head, drilling jumbo, drilling rod or anchor pole, infinite distance potential electrode B can adopt anchor pole or the metal rod outside the tunnel or in the tunnel.
On-the-spot main frame 2 comprises built-in guarded electrode pulse current emission control module 3, central electrode pulse current emission control module 4, central electrode receiver module 5, electrode ground 6, digital sampling and processing 7, CPU (central processing unit) 8 and power interface 9.
CPU (central processing unit) 8 comprises central processing unit, as high performance singlechip microprocessor (MCU), digital signal processing chip (DSP) or central controller (CPU) etc.; The input end of central processing unit is connected with system bus, and the output of central processing unit is connected with print circuit, network interface etc. with storer, keyboard and mouse, demonstration.
Digital sampling and processing 7 comprises synchronizing circuit, I/O interface circuit, amplifies attenuator circuit and A/D modular converter, one road I/O interface circuit connects synchronizing circuit and system bus, the synchronizing circuit output terminal is connected with the input end of central electrode pulse current transmitter module 4 and the control input end of data acquisition module with guarded electrode pulse current transmitter module 3, control electrode is synchronized transmissions pulse current and acquisition module synchronous acquisition electric signal, one road I/O interface circuit connects amplification attenuator circuit and system bus, the amplification of control signal and decay.
The output terminal of central electrode receiver module is connected with system bus with the A/D modular converter through amplifying attenuator circuit, and system bus is connected with CPU (central processing unit).
Guarded electrode A
1Be connected central electrode A by cable with guarded electrode pulse current emission control module 3
0Be connected with central electrode pulse current emission control module 4 by cable, the electrode ground 6 in infinite distance potential electrode B and the main frame is connected.
Arrangement of electrodes synoptic diagram such as Fig. 2 of present embodiment,
Detection direction is the headwork direction, central electrode A
0Be connected to the heading end of on-the-spot driving chassis, guarded electrode A
1Be connected to the steel bow member of on-the-spot supporting, infinite distance potential electrode B is connected to the grounding anchor rod outside the tunnel, guarded electrode A
1With central electrode A
0Form closed loop circuit with infinite distance potential electrode B respectively, the position relation of guarded electrode and central electrode is, with the electrode vertical projection to the detection direction plane the time, and guarded electrode encirclement central electrode.Guarded electrode A
1The bucking current of emission makes by central electrode A
0The measurement current focusing of emission is to test surface the place ahead.
At the scene under the control of main frame, guarded electrode pulse current transmitter module 3 and central electrode pulse current transmitter module 4 are with the different voltage same polarity of time domain mode synchronized transmissions pulse current, central electrode receiver module 5 receives electric signal after amplification, be converted to digital signal synchronously by data acquisition module 7, be input to the microsystem Treatment Analysis.Be stored in the on-the-spot main frame during Measurement and analysis fructufy.Remote terminal links to each other with on-the-spot main frame 1 by network interface, realizes that remote information is shared and monitoring.
Central electrode can be arranged on the workplace, so that workplace the place ahead is surveyed; Also can be arranged on the tunnel madial wall, the both sides, tunnel are surveyed.According to investigative range and precision, can adjust the position of electrode flexibly.
The total system course of work on-the-spot is surveyed the software of forecasting flow process as shown in Figure 4 as shown in Figure 3.Before carrying out on-the-spot test,, arrange infinite distance potential electrode B, guarded electrode A respectively at the outside, tunnel, tunnel madial wall or workplace according to the site operation concrete condition
1With central electrode A
0, and cable linked to each other with on-the-spot main frame.During test, at first obtain the context parameter under this geologic condition, by system debug system operational parameters is set, systematic parameter comprises guarded electrode A
1With central electrode A
0Supply voltage and supply current, power-on time under the time domain mode of operation and discharge time, pulsed frequency under the frequency field mode of operation and pulse width etc., starting current emission synchronously and signals collecting, survey software of forecasting and calculate apparent resistivity automatically, look the induced polarization rate and look specific inductive capacity, the specific inductive capacity of looking that calculates is compared with the dielectric constant range of looking of the different target that presets, the type of preliminary judgement detection of a target body, the induced polarization rate of looking that to calculate then and apparent resistivity and the different target that presets look the induced polarization rate and the apparent resistivity scope is compared, last recognition objective body.Have water content then to report to the police if survey the place ahead, have other jeopardously plastid then highlight.When entering alarm module, show apparent resistivity in real time, look the induced polarization rate and look the specific inductive capacity curve, and represent the character of the detection of a target in the respective distance image.System preserves measured data and analysis result.Whether inquiry has network instruction, if network instruction is arranged, then judges and uploads data command or continuation probe instructions, if continue to survey, whether need change mode of operation or adjust running parameter, and carry out corresponding operating according to instruction if then judging.
Remote monitoring and analytic system are at first checked the work on the spot state, if real-time detection forecast state then sends instruction, obtain the field measurement data, otherwise can read the data of having preserved, and graphic presentation.But, also can implement control to the work on the spot process according to long-range decision maker's consultation of doctors result to measured data secondary analysis, preservation or print result.
Claims (8)
1. the tunnel real-time continuous advanced prediction method of a networking comprises the collection and the processing of electrode detector data, it is characterized in that concrete steps are as follows:
(1), adopt outside the tunnel, the metalwork at tunnel inwall or workplace scene arranges infinite distance potential electrode B, guarded electrode A respectively according to the site operation concrete condition
1With central electrode A
0, and link to each other with on-the-spot main frame with cable;
(2) on-the-spot main frame is by guarded electrode A
1With central electrode A
0The loop that forms with infinite distance potential electrode B receives the electric signal of central electrode simultaneously with the pulse current of time domain or the different voltage same polarities of frequency field mode of operation synchronized transmissions, and treated and A/D is converted to digital signal, is input to host Central Processing Unit (CPU);
(3) on-the-spot host Central Processing Unit (CPU) is calculated the apparent resistivity of detection of a target body and is looked the induced polarization rate;
(4) compare according to the apparent resistivity that calculates in (3) and the numerical range of looking the apparent resistivity of induced polarization rate and the plurality of target body that presets and looking the induced polarization rate, with apparent resistivity with look the scope zone that the induced polarization rate falls into jointly and come recognition objective body object and visualization display and warning.
2. the tunnel real-time continuous advanced prediction method of networking according to claim 1, it is characterized in that: by the apparent resistivity of (3) step gained with look the induced polarization rate and calculate and to look specific inductive capacity, compare with the numerical range of looking specific inductive capacity of the plurality of target body that presets, determine primary election objective body scope, then in primary election objective body scope, by (4) one step process recognition objective body object.
3. the tunnel real-time continuous advanced prediction method of networking according to claim 1 and 2, it is characterized in that: on-the-spot main frame is by guarded electrode and central electrode synchronized transmissions pulse current the time, receive electric signal synchronously by central electrode, the overall process of record charge and discharge.
4. according to the tunnel real-time continuous advanced prediction method of claim 1 or 2 or 3 described networkings, it is characterized in that: on-the-spot main frame and remote monitoring center transmit data and instruction by network interface.
5. a tunnel real-time continuous advanced prediction device that is used for a kind of networking of the described method of claim 1 comprises electrode system and on-the-spot main frame, and it is characterized in that: electrode system comprises guarded electrode A
1, central electrode A
0, infinite distance potential electrode B, three class electrodes all adopt on-the-spot metalwork, central electrode A
0With guarded electrode A
1Form closed loop circuit with infinite distance potential electrode B, the position relation of guarded electrode and central electrode is, with the electrode vertical projection to the detection direction plane the time, and guarded electrode encirclement central electrode.
6. the tunnel real-time continuous advanced prediction device of networking according to claim 5 is characterized in that: guarded electrode A
1Adopt the steel arch or the anchor pole of tunnel inwall; Central electrode A
0Adopt driving head, drilling jumbo, drilling rod or anchor pole; Infinite distance potential electrode B adopts outside the tunnel or anchor pole in the tunnel or metal rod.
7. according to the tunnel real-time continuous advanced prediction device of claim 5 or 6 described networkings, it is characterized in that: on-the-spot main frame comprises the guarded electrode pulse current transmitter module that is connected with guarded electrode, the central electrode pulse current transmitter module that is connected with central electrode and central electrode receiver module, the output terminal of synchronizing circuit is connected with the input end of guarded electrode pulse current transmitter module and the control input end of data acquisition module with central electrode pulse current transmitter module, and the input end of synchronizing circuit is connected with system bus through interface circuit; The output terminal of central electrode receiver module is connected with system bus with the A/D modular converter through amplifying attenuator circuit, and system bus is connected with CPU (central processing unit).
8. the tunnel real-time continuous advanced prediction device of networking according to claim 7, it is characterized in that: system bus is connected with warning circuit with network interface, demonstration.
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| CNB200610019942XA CN100510780C (en) | 2006-08-08 | 2006-08-08 | Network tunnel real time continuous leading preinforming method and device |
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| CNB200610019942XA CN100510780C (en) | 2006-08-08 | 2006-08-08 | Network tunnel real time continuous leading preinforming method and device |
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| CN101251605B (en) * | 2008-04-17 | 2010-06-02 | 中铁二局股份有限公司 | Method for forecasting advanced geology for tunnel construction |
| CN102012508A (en) * | 2010-09-28 | 2011-04-13 | 中国水电顾问集团华东勘测设计研究院 | Method for advanced prediction of U-shaped geology by ground penetrating radar |
| CN101672930B (en) * | 2009-09-22 | 2011-04-20 | 山东大学 | Induced polarization time domain receiver equipment for advance geologic prediction for tunnel or underground tunnel |
| CN102176059A (en) * | 2011-01-18 | 2011-09-07 | 山东大学 | Composite induced polarization instrument for advanced geological prediction of tunnel or gallery |
| CN102508303A (en) * | 2011-11-23 | 2012-06-20 | 山东大学 | Advanced detection method for focusing chromatography induced polarization of underground engineering |
| CN103076635A (en) * | 2013-01-07 | 2013-05-01 | 山东大学 | Advanced detection system and method for TBM (Tunnel Boring Machine) tunnel construction based on forward three-dimensional induced polarization |
| CN103267977A (en) * | 2013-04-24 | 2013-08-28 | 山东理工大学 | Underground construction surrounding rock disaster whole time interval induced polarization monitoring method |
| WO2014110689A1 (en) * | 2013-01-15 | 2014-07-24 | 山东大学 | Three-dimensional focus induced polarization device for advanced geological forecast of water burst source in underground construction |
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| CN108594310A (en) * | 2018-06-13 | 2018-09-28 | 中国电子科技集团公司第二十二研究所 | Geologic prediction equipment |
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| CN101672930B (en) * | 2009-09-22 | 2011-04-20 | 山东大学 | Induced polarization time domain receiver equipment for advance geologic prediction for tunnel or underground tunnel |
| CN102012508A (en) * | 2010-09-28 | 2011-04-13 | 中国水电顾问集团华东勘测设计研究院 | Method for advanced prediction of U-shaped geology by ground penetrating radar |
| CN102176059A (en) * | 2011-01-18 | 2011-09-07 | 山东大学 | Composite induced polarization instrument for advanced geological prediction of tunnel or gallery |
| CN102176059B (en) * | 2011-01-18 | 2013-03-06 | 山东大学 | Composite induced polarization instrument for advanced geological prediction of tunnel or gallery |
| CN102508303A (en) * | 2011-11-23 | 2012-06-20 | 山东大学 | Advanced detection method for focusing chromatography induced polarization of underground engineering |
| CN102508303B (en) * | 2011-11-23 | 2013-06-05 | 山东大学 | Advanced detection method for focusing chromatography induced polarization of underground engineering |
| CN103076635A (en) * | 2013-01-07 | 2013-05-01 | 山东大学 | Advanced detection system and method for TBM (Tunnel Boring Machine) tunnel construction based on forward three-dimensional induced polarization |
| US9256003B2 (en) | 2013-01-15 | 2016-02-09 | Shan Dong University | Three-dimensional focusing induced polarization equipment for advanced geological prediction of water inrush disaster source in underground engineering |
| WO2014110689A1 (en) * | 2013-01-15 | 2014-07-24 | 山东大学 | Three-dimensional focus induced polarization device for advanced geological forecast of water burst source in underground construction |
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| CN113391359A (en) * | 2021-07-26 | 2021-09-14 | 中铁工程装备集团有限公司 | Real-time detection electric advanced geological prediction system and method |
| CN113391359B (en) * | 2021-07-26 | 2022-03-11 | 中铁工程装备集团有限公司 | Real-time detection electric advanced geological prediction system and method |
| CN117270062A (en) * | 2023-11-22 | 2023-12-22 | 山东大学 | TBM induced polarization advanced water detection device and method based on annular electrode emission |
| CN117270062B (en) * | 2023-11-22 | 2024-02-09 | 山东大学 | TBM induced polarization advanced water detection device and method based on annular electrode emission |
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