CN105738955A - Direct-current-electric-method-based rapid electrode distribution system for advanced detection of water hazard in tunnel and detection method thereof - Google Patents
Direct-current-electric-method-based rapid electrode distribution system for advanced detection of water hazard in tunnel and detection method thereof Download PDFInfo
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- CN105738955A CN105738955A CN201410756004.2A CN201410756004A CN105738955A CN 105738955 A CN105738955 A CN 105738955A CN 201410756004 A CN201410756004 A CN 201410756004A CN 105738955 A CN105738955 A CN 105738955A
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Abstract
The invention discloses a direct-current-electric-method-based rapid electrode distribution system for advanced detection of a water hazard in a tunnel and a detection method thereof. The system comprises an infinity electrode and a host, wherein the electrode and the host are connected by a telescopic cable. Besides, the system also includes an automatic carry-bit multi-core testing wire connected with the host; the automatic carry-bit multi-core testing wire consists of a plurality of male and female head aviation plug groups; two male and female head aviation plug groups are connected by a plurality of wedge-shaped testing wires; and each male and female head aviation plug group is connected with a power supply measuring electrode correspondingly. According to the invention, the traditional cable electrode arrangement way is changed and a corresponding number of combined units of female head aviation plugs, wedge-shaped testing wires and female aviation plugs with the corresponding number are added, and thus re arrangement of all electrodes, the testing wire, and the host dost not required and one segment of testing wire, electrode and host need to be moved at a distance corresponding to a tunneling distance, so that the work becomes convenient with less time and effort. The traditional one-tunneling and one-detection mode is changed and real-time tracking and detection on the tunneling working face of the tunnel can be realized, so that the geological anomalous body can be detected timely by multiple times.
Description
Technical field
The present invention relates to mine geophysical method application, particularly a kind of quick cloth electrode systems of tunnel water damage forward probe based on DC electrical method and detection method thereof.
Background technology
Water damage is one of five big disasters affecting mine safety production.In coal mine roadway tunneling process, find out that position, rich water exceptions area, getting working face front is the key solving coal mine flood problem.Current common method includes probing and the big class of physical prospecting two.Wherein DC electrical method Roadway Leading Prospecting technology is widely adopted, and it is based on the feature of the resistivity contrasts such as rock, water body, utilizes the point source Electric Field Distribution in space for this characteristic of equipotentiality spheroid, reaches the target of forward probe.
The moisture abnormal common method in advance exploration front is for having:Three point source detection methods, namely arrange electrodes of A with a determining deviation near development end1、A2、A3, current electrode B is placed in infinite point.Measure electrode M, N in tunnel, move (Fig. 1) in a direction indicated by the arrow at certain intervals, often move one-shot measurement electrode, measure an A1、A2、A3Corresponding apparent resistivity value ρ1、ρ2、ρ3；7 electrode system methods of testing, the method is identical with three point source method of testing operation principles, and its current electrode number is seven (A1、A2、A3、A4、A5、A6、A7)；Multipole covers observation system, namely parallel electrical method test equipment is utilized once to arrange 64 electrodes, when arbitrary electrode power supply, all the other 63 electrode synchronous acquisition current potentials, multiple supply terminals three poles combined test can be completed at short notice, obtain substantial amounts of electrode points potential data, it is achieved multipole supplying DC electrical method forward probe (quotes document: Zhang Pingsong, Li Yongsheng etc. tunnelling advanced detection using DC resistivity technology Application research .2013,9(1): 136-138).But these common methods all ubiquities a problem: when development end front is tracked detecting by continuous print, article one, arrangement of measuring-line after having measured, need that all current electrodes and measurement electrode are re-started layout and just can carry out follow-up measurement, this way not only takes time and effort, and the concordance of electrode is affected, and data process and interpretation is made troubles.
Summary of the invention
The purpose of the present invention is contemplated to the deficiency solving exist in above-mentioned background technology, proposition one construction is simpler, work efficiency is higher, and development end front abnormal water-bearing body can carry out continuously the intelligence of automatic cloth pole of the water damage forward probe based on DC electrical method of tracking detection, quick detecting method.
For achieving the above object, the present invention adopts the following technical scheme that a kind of quick cloth electrode systems of the water damage forward probe based on DC electrical method, including infinite electrode and main frame, both are connected by retractable cable, and described main frame for carrying out parameter setting, data acquisition, data management and becoming map analysis to system；Also including the automatic carry multicore survey line being connected with main frame, described automatic carry multicore survey line includes some groups of male and female head air plugs, is connected by some wedge shape surveys line between two groups of male and female head air plugs, often one electrode of corresponding connection on group male and female head air plug.
Distance between two described electrodes is 2-10m, and male and female head air plug group quantity is for and rounding divided by electrode spacing from boring head face (boring head face and driving face) detection target range farthest.
It is a further object of the present invention to provide the water damage forward probe method of this system, comprise the following steps:
(1) according to forward probe demand, in conjunction with relevant geologic information, measuring method (resistivity method, induced polarization method, natural electric field method) is selected；
(2) cable is layered on roadway floor, electrode is fixed on automatic carry multicore survey line, infinite electrode is positioned over the distance rear (meeting head on as front in tunnel) of the detection survey line of 5 times, electrode is placed in base plate, automatic carry multicore survey line, scalable cable are connected with main frame, press host power supply, after relevant parameter is set, system starts；
Article (3) one, survey line has been measured, and after data preserve, system is positioned over original position and waits；
(4) after work surface has tunneled certain distance again, observation system is rearranged, its arrangement is: entirety pulls up later again " female air plug, wedge shape survey line and the male air plug " combination on automatic carry multicore survey line and electrode, by on male air plug the most forward for the described combined inserting pulled up to the automatic carry multicore survey line not moved, the electrode moved forward accordingly is installed, extend scalable cable, move forward main frame and connect main frame, after pressing host power supply, reset relevant parameter, measurement；
(5), after measuring and preserve data, lower subjob is carried out according to (3)-(4) step.
In step (1), described measuring method adopts three point source methods of testing, 7 electrode system methods of testing or multipole to cover observation system method of testing.
As shown from the above technical solution: number of poles is determined according to detection demand, and such as three point source methods of testing and 7 electrode system methods of testing, current electrode is 3 or 7, measuring electrode is 2, and infinite electrode is 1；It can be N number of that multipole covers the number of observation system electrode；The length of described automatic carry multicore survey line is determined according to detection demand.The automatic carry multicore survey line of the present invention changes tradition " wire type " cabled manner, internal survey line is distributed in " wedge shape " and increases N number of male and female head air plug, 1 " female air plug, wedge shape survey line and male air plug " combination correspondence connects 1 electrode, and the selection of its number of poles specifically can be determined according to the detection of roadway head.Described scalable cable is used for connecting main frame and infinite electrode；Described automatic carry multicore survey line, scalable cable are connected with main frame, and electrode rubber band, plugging clamp or plug are fixed on automatic carry multicore survey line, and infinite electrode rubber band, plugging clamp or plug are fixed on scalable cable.
The invention has the beneficial effects as follows:Change traditional cable arrangement, add " female air plug, wedge shape survey line and male air plug " combination of corresponding number, have an advantage in that, first, need not rearranging each electrode, survey line and main frame, only need to move corresponding with driving distance section survey line, electrode and main frame, work more convenient and quicker, time saving and energy saving, the coupling condition of N-1 electrode is all constant；Second, change a traditional pick one spy pattern, roadway head can be carried out real-time tracking detection by the efficient and convenient of the present invention, both moving ahead along with boring head, pixel by pixel track traveling electrode, improve work efficiency, can guarantee that again driving face front geological anomalous body is by time, repeatedly find.
Accompanying drawing explanation
Fig. 1 is three point source method of testing Construction Arrangement signals.
Fig. 2 is multi-fold observation system layout drawing.
Fig. 3 is present configuration schematic diagram.
Fig. 4 (a) is automatic carry multicore survey line structural representation of the present invention (before mobile).
Fig. 4 (b) is automatic carry multicore survey line structural representation of the present invention (after mobile).
In figure, 1. underground passage, 2. development end, 3. main frame, 4. scalable cable, 5. infinite electrode, 6. electrode, 7. automatic carry multicore survey line, 8. female air plug, 9. wedge shape survey line, 10. male air plug.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As it is shown on figure 3, the invention mainly comprises main frame 3, automatic carry multicore survey line 7, electrode 6, scalable cable 4, infinite electrode 5.Main frame 3 for carrying out parameter setting, data acquisition, data management and becoming map analysis etc. to whole system.Automatic carry multicore survey line 7, scalable cable 4 are connected with main frame 3 respectively, and electrode 6 rubber band, plugging clamp or plug are fixed on automatic carry multicore survey line 7, and infinite electrode 5 rubber band, plugging clamp or plug are fixed on scalable cable 4.
As shown in Figure 4 (a), for 6 electrodes, for embodying the special feature of the present invention, automatic carry multicore survey line 7 changes tradition " wire type " cabled manner, the distribution in " wedge shape " of internal survey line, being 6 male and female head air plugs therebetween, one section " female air plug 8, wedge shape survey line 9 and male air plug 10 " combination correspondence connects an electrode (6#, 5#, 4#, 3#, 2#, 1#)；The selection of number of poles N specifically can be determined according to the detection of roadway head, and male and female head air plug hop count amount N or number of poles N and rounds divided by electrode spacing for detecting target range farthest from boring head face.If electrode spacing is 10m, farthest detection target range is 63m, and both are divided by and round numbers is 6, namely arranges 6 electrodes, and if desired for 3 as current electrode in 6 electrodes, electrode is measured in 5 conducts, by mian engine changeover.
As shown in Figure 4 (b), when one section of " female air plug 8, wedge shape survey line 9 and male air plug 10 " the most rearward combines and the corresponding electrode 6# entirety connected is removed to the male air plug the most forward to " female air plug 8, wedge shape survey line 9 and the male air plug 10 " combination do not moved, automatic carry multicore survey line entirety sequence number structure is constant；Namely the 6# electrode sequence number moved is 1, and follow-up electrode enters 1 (1#-2,2#-3,3#-4,4#-5,5#-6) automatically.
In specific implementation process, the operating procedure of the present invention is:
(1) according to forward probe distance requirement, in conjunction with relevant geologic information, select suitable measuring method, as shown in Figure 1, Figure 2, detect including resistivity method, induced polarization method and self-potential method；
(2) after going into the well, lay cable, cable is layered on roadway floor, electrode 6 is fixed on automatic carry multicore survey line 7, after infinite electrode 5 is positioned over 5 times of detection ranges, and electrode is placed in base plate, automatic carry multicore survey line 7, scalable cable 4 are connected with main frame 3, press host power supply, after relevant parameter is set, system starts；
Article (3) one, survey line has been measured, and after data preserve, arrangement system is positioned over original position and waits；
Etc. (4) underground work personnel are again after work surface has tunneled certain distance, observation system is rearranged, its arrangement is: entirety pulls up final stage " the female air plug 8 on automatic carry multicore survey line 7, wedge shape survey line 9 and male air plug 10 " combine and electrode 6, " the female air plug 8 that will pull up, wedge shape survey line 9 and male air plug 10 " combination move to " the female air plug 8 not moved, wedge shape survey line 9 and male air plug 10 " combine on the most forward male air plug, move forward corresponding electrode 6 and install accordingly, extend scalable cable, move forward main frame and connect main frame, after pressing host power supply, reset relevant parameter, measurement；
(5), after measuring and preserve data, lower subjob is carried out according to (3)-(4) step.
Above are only embodiments of the invention, it will be apparent to those skilled in the art that the present invention has multiple change and change.All within inventive concept and principle, make any amendment, equivalent replacement, improvement etc., all should include within the protection domain of invention.
Claims (4)
1. based on the quick cloth electrode systems of tunnel water damage forward probe of DC electrical method, including infinite electrode and main frame, both are connected by retractable cable, and described main frame for carrying out parameter setting, data acquisition, data management and becoming map analysis to system；It is characterized in that: also include the automatic carry multicore survey line being connected with main frame, described automatic carry multicore survey line includes some groups of male and female head air plugs, connected by some wedge shape surveys line between two groups of male and female head air plugs, often one electrode of corresponding connection on group male and female head air plug.
2. the quick cloth electrode systems of tunnel water damage forward probe based on DC electrical method according to claim 1, it is characterized in that: the distance between two described electrodes is 2-10m, male and female head air plug group quantity and rounds divided by electrode spacing for detecting target range farthest from boring head face.
3. the water damage forward probe method of system according to claim 1 or claim 2, it is characterised in that measuring method comprises the following steps:
(1) detect demand according to ore deposit side, in conjunction with relevant geologic information, select measuring method；
(2) cable is layered on roadway floor, electrode is fixed on automatic carry multicore survey line, after infinite electrode is positioned over 2 ~ 3 times of detection ranges, electrode is placed in base plate, automatic carry multicore survey line, scalable cable are connected with main frame, press host power supply, after relevant parameter is set, system starts；
Article (3) one, survey line has been measured, and after data preserve, system is positioned over original position and waits；
(4) after work surface has tunneled certain distance again, observation system is rearranged, its arrangement is: entirety pulls up last " female air plug, wedge shape survey line and the male air plug " combination on automatic carry multicore survey line and electrode, by on male air plug the most forward for the described combined inserting pulled up to the automatic carry multicore survey line not moved, the electrode moved forward accordingly is installed, extend scalable cable, move forward main frame and connect main frame, after pressing host power supply, reset relevant parameter, measurement；
(5), after measuring and preserve data, lower subjob is carried out according to (3)-(4) step.
4. water damage forward probe method according to claim 3, it is characterised in that in step (1), described measuring method is " three point source methods of testing ", " 7 electrode system method of testing " or " multipole covers observation system method of testing ".
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107219558A (en) * | 2017-08-08 | 2017-09-29 | 山东省煤田地质规划勘察研究院 | A kind of quick electrode installation aiding device and method available for geophysical measurement |
| CN107589462A (en) * | 2017-09-01 | 2018-01-16 | 中煤科工集团西安研究院有限公司 | A kind of underground coal mine direct current forward probe method based on drilling rod power supply |
| CN108828678A (en) * | 2018-08-25 | 2018-11-16 | 林光琴 | A kind of advanced geology for tunnel construction detection system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219558A (en) * | 2017-08-08 | 2017-09-29 | 山东省煤田地质规划勘察研究院 | A kind of quick electrode installation aiding device and method available for geophysical measurement |
| CN107219558B (en) * | 2017-08-08 | 2023-07-14 | 山东省煤田地质规划勘察研究院 | Rapid electrode layout device and method for geophysical prospecting measurement |
| CN107589462A (en) * | 2017-09-01 | 2018-01-16 | 中煤科工集团西安研究院有限公司 | A kind of underground coal mine direct current forward probe method based on drilling rod power supply |
| CN107589462B (en) * | 2017-09-01 | 2019-03-08 | 中煤科工集团西安研究院有限公司 | A kind of underground coal mine direct current forward probe method based on drilling rod power supply |
| CN108828678A (en) * | 2018-08-25 | 2018-11-16 | 林光琴 | A kind of advanced geology for tunnel construction detection system |
| CN108828678B (en) * | 2018-08-25 | 2020-05-29 | 安徽省公路工程检测中心 | Advanced geological detection system for tunnel construction |
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Denomination of invention: Direct-current-electric-method-based rapid electrode distribution system for advanced detection of water hazard in tunnel and detection method thereof Effective date of registration: 20180824 Granted publication date: 20171114 Pledgee: Hefei merchants bank innovation Avenue Branch Pledgor: ANHUI HUIZHOU GEOLOGY SECURITY INSTITUTE Co.,Ltd. Registration number: 2018340000433 |
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Date of cancellation: 20221026 Granted publication date: 20171114 Pledgee: Hefei merchants bank innovation Avenue Branch Pledgor: ANHUI HUIZHOU GEOLOGY SECURITY INSTITUTE Co.,Ltd. Registration number: 2018340000433 |