CN103499841A - Roadway-hole transient electromagnetic device and measuring method - Google Patents
Roadway-hole transient electromagnetic device and measuring method Download PDFInfo
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- CN103499841A CN103499841A CN201310427474.XA CN201310427474A CN103499841A CN 103499841 A CN103499841 A CN 103499841A CN 201310427474 A CN201310427474 A CN 201310427474A CN 103499841 A CN103499841 A CN 103499841A
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Abstract
The invention relates to a roadway-hole transient electromagnetic device and a measuring method. The roadway-hole transient electromagnetic device comprises a transmitting device and a receiving device, wherein the transmitting device and the receiving device are connected with a host, a drilled hole and a roadway serve as a whole, when measurement is carried out, the transmitting device and the receiving device are arranged in the roadway and the drilled hole respectively, the host controls the transmitting device and the receiving device to be in time synchronization, and measurement is carried out on an abnormal body through a transient electromagnetic method. When measurement is carried out through the roadway-hole transient electromagnetic device, the roadway-hole transient electromagnetic device is closer to the abnormal body, influence caused by an artificial conductor on the roadway-hole transient electromagnetic device is low, and the signal to noise ratio is high; due to the fact that a transmitting coil is arranged in the roadway, compared with the narrow space of the drilled hole, the parameters such as the number of turns of the transmitting coil and the side length of the transmitting coil can be increased, the transmission magnetic moment can be increased, and the coefficient of mutual induction is almost zero; influence of the volume effect of roadway transient electromagnetic non-contact detection is effectively reduced; due to the fact that the design that a receiving coil with a plurality of components is adopted, the combination forms of the receiving coil can be multiple, and when the PCB receiving coil form is adopted, the effective receiving area can be effectively increased, the radius of detection can be increased, information of geologic bodies, within a certain range, around the drilled hole can be effectively obtained, and precision of judgment of the abnormal body is improved.
Description
Technical field
The present invention relates to geophysical survey device and measuring method field, particularly hole, a kind of lane transient electromagnetic device and measuring method.
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Background technology
Transient electromagnetic method (TEM) is a kind of important method faster of Exploration Domain development in recent years, for other geophysical methods, it has the advantages such as investigation depth is large, resolution is high, abundant information, and its range of application relates to the every field such as ore deposit, ground, oil, water conservancy.Mine TEM working method is varied, as sending and receiving apparatus in coincide-loop, center wire-retracting device, hole etc., they have its relative merits separately, shortcoming is mainly reflected in the following aspects: overlapping or center wire-retracting device resolution is relatively low, and be exposed in mine, be subject to the interference of the humanistic environments such as various extractive equipments, ventilation equipment in mine, had a strong impact on detection accuracy and the accuracy of instrument; The boring instantaneous change device is owing to launching in hole, and its shortcoming is that generally to launch magnetic moment little, and depth of exploration is less.During underground works is surveyed at present, main probing and the geophysical prospecting method of relying on detected disaster.Probing has the limitation of " a peephole view "; And underground space transient electromagnetic method is subject to the bulk effect impact, contactless detection geologic anomaly body precision is limited, while particularly surveying more remote anomalous body, therefore, in conjunction with probing, physical prospecting characteristics, proposes hole, lane transient electromagnetic detecting very necessary.
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Summary of the invention
The objective of the invention is the deficiency existed in order to solve the above-mentioned background technology, propose a kind ofly at the tunnel drilling orifice, to carry out the emission of the large coil of multiturn, carry out the reception of multiturn small coil in boring, use the transient electromagnetic method to carry out to anomalous body around boring hole, lane transient electromagnetic device and the measuring method effectively surveyed, thereby reach the purposes such as antijamming capability is strong, the emission magnetic moment is large, detection accuracy is high.
For achieving the above object, the present invention adopts following technical scheme: hole, lane transient electromagnetic device, comprise emitter and receiving trap, and both split and are connected with main frame respectively; Described emitter comprises multifrequency transmitter, transmitting coil, an A/D collecting unit and the primary scene programmable logic cells (hereinafter to be referred as a FPGA) connected successively, through first interface, with main frame, is connected; Described receiving trap comprises receiving coil, the 2nd A/D collecting unit and the secondary scene programmable logic cells (hereinafter to be referred as the 2nd FPGA) connected successively, through the second interface, with main frame, is connected; Described main frame carries out time synchronized, parameter setting and the data of receiving is shown and pre-service emission, receiving trap.
A described FPGA also accesses the first random access memory (hereinafter to be referred as a RAM), and the data that a described RAM processes a FPGA are stored, then read by first interface and deposit main frame in it.Described transmitting coil is powered by excitation power supply.
Described the 2nd FPGA also accesses respectively the second random access memory (hereinafter to be referred as the 2nd RAM) and for the electronic compass of real time record receiving trap angle information.
Described receiving coil can be single or many components receiving coil, list or many components receiving transducer, and each component receiving coil or component receiving transducer are separately fixed on one of them face of pedestal.Described single or many components receiving coil employing PCB receiving coil.
Described first and second interface adopts RS485 or network interface.
Another object of the present invention is to provide the transient electromagnetic measuring method of this device, comprises the following steps:
(1) emitter is positioned in tunnel, wherein, the normal direction of transmitting coil is parallel to the drilling axis direction; By pvc pipe (as Φ 50 or Φ 40), receiving trap is sent in specified measurement boring;
(2) emission is set in main frame, receives parameter and to time synchronized order under main frame;
(3) measure the angle information of one-component receiving coil or one-component receiving transducer by electronic compass, the angle of other coil is obtained by structural relation;
(4) by excitation power supply, to transmitting coil, power, list/many components receiving coil obtains anomalous body secondary field induced signal by the 2nd A/D collecting unit, signal is sent into to the primary scene programmable logic cells and deposited the first random access memory in, and after reading the first random access memory data with the primary scene programmable logic cells, deposit main frame in through RS485 or network interface, shown and pre-service by main frame;
(5) in boring, receiving trap is sent into to diverse location by pvc pipe (as Φ 50 or Φ 40), carry out work according to above-mentioned (3)-(4) step, obtain the corresponding induced signal of different depth, form the physical property infomation of diverse location.
In step (2), described emission, reception parameter are transmission frequency, emitting voltage, sampling interval ,Ce road number, stacking fold, sampling time; Described main frame is shown and pre-service the data of receiving.
In step (3), described angle information be position angle, roll angle and bow, elevation information.
From above-mentioned technical approach; The present invention will hole, tunnel is done as a wholely, will launch, receiving trap separates, and by host computer control emission, receiving trap time synchronized, uses the transient electromagnetic method to be measured anomalous body.
beneficial effect of the present invention:with respect to tunnel device (as coincide-loop, center wire-retracting device), apparatus of the present invention more are close to anomalous body, and receiving trap is positioned in boring, affected by artificial conductor little, and signal to noise ratio (S/N ratio) is high; Transmitting coil is positioned in tunnel, with respect to very narrow and small borehole space, can strengthen the parameters such as the number of turn, the length of side of transmitting coil, improves the emission magnetic moment, and the transmitting coil normal direction is perpendicular to the drilling axis direction, and coefficient of mutual inductance is almost nil; The design of emission, receiving trap, can effectively reduce the bulk effect impact of the contactless detection of tunnel transient electromagnetic; The design of many components receiving coil, its array configuration can be various, as adopted PCB receiving coil form, can increase capture area, improve radius of investigation, thereby can effectively obtain the boring interior geologic body information of certain limit on every side, greatly improve the precision that anomalous body is differentiated.
The accompanying drawing explanation
Fig. 1 is principle of the invention block diagram.
Fig. 2 is the structural representation of the embodiment of the present invention one.
Fig. 3 is receiving trap structural representation in the embodiment of the present invention one.
In figure, 1. tunnel, 2. emitter (each device label of emitter: 21. multifrequency transmitters, 22. excitation power supply, 23. transmitting coil, a 24. A/D collecting unit, a 25. FPGA, a 26. RAM, 27. power supply A, 28. first interface), 3. boring, 4. receiving trap, (each device label of receiving trap: 41. receiving coil 42. electronic compasss, 43. the 2nd RAM, 44. the 2nd A/D collecting unit, 45. the 2nd FPGA, 46. power supply B, 47. the second interface), 5. transmitting loop cable, 6. pedestal, 7. drilling depth scale mark, 8. emission goes between, 9. main frame.
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Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Embodiment mono-:
As shown in Figure 1, Figure 2 and Figure 3, hole, lane transient electromagnetic device comprises main frame 9, reaches the emitter 2 and the receiving trap 4 that are attached thereto respectively.When measuring, emitter 2 and receiving trap 4 are positioned over respectively in tunnel 1 and boring 3.The present invention will hole, tunnel is done as a wholely, will launch, receiving trap separates, and by host computer control emission, receiving trap time synchronized, uses the transient electromagnetic method to be measured anomalous body.
Emitter comprises multifrequency transmitter 21, excitation power supply 22, transmitting coil 23, an A/D collecting unit 24, a FPGA25 and the first interface 28 connected successively.The one FPGA also accesses a RAM26 and power supply A27.Excitation power supply 22 is to transmitting coil 23 power supplies, and power supply A27 powers to a FPGA25.
Receiving trap 4 comprises receiving coil 41, the 2nd A/D collecting unit 44, the 2nd FPGA45 and the second interface 47 connected successively.The 2nd FPGA also accesses electronic compass 42, the 2nd RAM43 and power supply B46.Access electronic compass 42 is for the angle information of real time record stationary installation, as position angle, roll angle and the angle of pitch etc.Excitation power supply 22 is to transmitting coil 23 power supplies, and power supply B46 powers to the 2nd FPGA.First interface 28 and the second interface 47 all adopt RS485 or network interface.Receiving coil 41 adopts many components receiving coil, and each component receiving coil is separately fixed on one of them face of pedestal 6.The number of the component that the 2nd A/D collecting unit can adopt according to receiving coil is determined the number of A/D acquisition channel.The design of many components receiving coil, its array configuration can be various, as adopted PCB receiving coil form, can increase capture area, improve radius of investigation, thereby can effectively obtain the boring interior geologic body information of certain limit on every side, improve the discrimination precision to anomalous body.
The PCB receiving coil is to be provided with the coil that single or multiple lift cloth copper forms through etching on the PCB body, and coil is connected and forms the PCB coil board by serial or parallel connection, and through the connector access excite, in receiving circuit.
In transmitter-receiver device, FPGA is for controlling the A/D collecting unit, as controlled sampling rate, filter factor etc.; The A/D collecting unit is sent the signal of collection into FPGA and is processed; RAM is stored for the data that FPGA is processed, then deposits main frame in through the RS485 interface after reading with FPGA.
Embodiment bis-:
Be receiving trap with the difference of embodiment mono-, receiving coil is receiving transducer, adopts the three-component form.Also can adopt simple component receiving transducer form.
Embodiment tri-: with the difference of embodiment mono-, be the design of simple component receiving coil, as adopt PCB receiving coil form, and can increase capture area, improve radius of investigation, thereby can effectively obtain the boring interior geologic body information of certain limit on every side, greatly improve the precision that anomalous body is differentiated.
Embodiment tetra-: be the parallel placement of many components receiving coil with the difference of embodiment mono-, corresponding, the pedestal of fixed reception coil has two faces at least, and according to the real work needs, pedestal can be tetrahedron, hexahedron, octahedron, even more polyhedron.
Hole, lane transient electromagnetic measuring method comprises the following steps:
(1) emitter is positioned in tunnel, wherein, the normal direction of transmitting coil is parallel to the drilling axis direction; By pvc pipe (as Φ 50 or Φ 40), receiving trap is sent in specified measurement boring;
(2) emission is set in main frame, receives parameter and to time synchronized order under main frame;
(3) measure the angle information of one-component receiving coil or one-component receiving transducer by electronic compass, the angle of other coil is obtained by structural relation;
(4) by excitation power supply, to transmitting coil, power, list/many components receiving coil obtains anomalous body secondary field induced signal by the 2nd A/D collecting unit, signal is sent into to the primary scene programmable logic cells and deposited the first random access memory in, and after reading the first random access memory data with the primary scene programmable logic cells, deposit main frame in through RS485 or network interface, shown and pre-service by main frame;
(5) in boring, receiving trap is sent into to diverse location by pvc pipe (as Φ 50 or Φ 40), carry out work according to above-mentioned (3)-(4) step, obtain the corresponding induced signal of different depth, form the physical property infomation of diverse location.
Above are only embodiments of the invention, to one skilled in the art, the present invention has multiple change and variation.Allly within invention thought of the present invention and principle, make any modification, be equal to replacement, improve etc., within all should being included in protection scope of the present invention.
Claims (9)
1. hole, lane transient electromagnetic device, it is characterized in that: comprise emitter and receiving trap, both split and are connected with main frame respectively; Described emitter comprises multifrequency transmitter, transmitting coil, an A/D collecting unit and the primary scene programmable logic cells connected successively, through first interface, with main frame, is connected; Described receiving trap comprises receiving coil, the 2nd A/D collecting unit and the secondary scene programmable logic cells connected successively, through the second interface, with main frame, is connected.
2. hole, lane according to claim 1 transient electromagnetic device, it is characterized in that: described primary scene programmable logic cells also accesses the first random access memory, the data that described the first random access memory is processed the primary scene programmable logic cells are stored, then read by first interface and deposit main frame in it.
3. hole, lane according to claim 1 transient electromagnetic device is characterized in that: described secondary scene programmable logic cells also accesses respectively the second random access memory and for the electronic compass of real time record receiving trap angle information.
4. hole, lane according to claim 1 transient electromagnetic device, is characterized in that: described first and second interface employing RS485 or network interface.
5. hole, lane according to claim 1 transient electromagnetic device, it is characterized in that: described receiving coil is single or many components receiving coil, or adopting single or many components receiving transducer, each component receiving coil/probe of described many components receiving coil/probe is separately fixed on one of them face of pedestal.
6. hole, lane according to claim 5 transient electromagnetic device, is characterized in that: described single or many components receiving coil employing PCB receiving coil.
7. the transient electromagnetic measuring method based on the described device of claim 1-6 any one is characterized in that: comprise the following steps:
(1) emitter is positioned in tunnel, wherein, the normal direction of transmitting coil is parallel to the drilling axis direction; The pvc pipe that is 40-50mm by diameter is sent into receiving trap in specified measurement boring;
(2) emission is set in main frame, receives parameter and to time synchronized order under main frame;
(3) measure the angle information of one-component receiving coil or one-component receiving transducer by electronic compass, the angle of other coil is obtained by structural relation;
(4) by excitation power supply, to transmitting coil, power, list/many components receiving coil obtains anomalous body secondary field induced signal by the 2nd A/D collecting unit, signal is sent into to the primary scene programmable logic cells and deposited the first random access memory in, and after reading the first random access memory data with the primary scene programmable logic cells, deposit main frame in through RS485 or network interface, shown and pre-service by main frame;
(5) in boring, the pvc pipe that is 40-50mm by diameter by receiving trap is sent into diverse location, according to above-mentioned (3)-(4) step, carries out work, obtains the corresponding induced signal of different depth, forms the physical property infomation of diverse location.
8. hole, lane according to claim 7 transient electromagnetic device is characterized in that: in step (2),
Described emission, reception parameter are transmission frequency, emitting voltage, sampling interval, stacking fold ,Ce road number, sampling time, and described main frame is shown and pre-service the data of receiving.
9. hole, lane according to claim 7 transient electromagnetic device is characterized in that: in step (3), described angle information be position angle, roll angle and bow, elevation information.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090306A (en) * | 2014-07-01 | 2014-10-08 | 中煤科工集团西安研究院有限公司 | Method for detecting radial water cut abnormal body in underground coal mine drilled hole |
| CN104714256A (en) * | 2015-03-18 | 2015-06-17 | 安徽惠洲地质安全研究院股份有限公司 | Quick well wall and wall back nondestructive detecting system based on transient electromagnetic method and detection method of the detection system |
| CN105717544A (en) * | 2016-04-26 | 2016-06-29 | 吉林大学 | Transient electromagnetic emitting-receiving system for real-time acquisition-storage and data mapping explanation |
| CN106033128A (en) * | 2015-03-18 | 2016-10-19 | 安徽惠洲地质安全研究院股份有限公司 | Safety helmet with top board water inrush early warning function |
| CN106970424A (en) * | 2017-03-17 | 2017-07-21 | 中煤科工集团西安研究院有限公司 | A kind of coal mine hole lane transient electromagnetic superposition forward probe device and method |
| CN107703552A (en) * | 2017-09-21 | 2018-02-16 | 武汉长盛煤安科技有限公司 | A kind of mining drilling three-dimensional orientation transient electromagnetic forward probe device and method |
| CN108227012A (en) * | 2017-12-27 | 2018-06-29 | 湖南五维地质科技有限公司 | Obtain the device and method of the ground end data of set depth in target area |
| CN113687428A (en) * | 2021-08-25 | 2021-11-23 | 天津市嘉信技术工程公司 | Accurate electromagnetic calibration method for ultra-deep underground pipeline position |
| CN114994772A (en) * | 2022-05-26 | 2022-09-02 | 山东大学 | Solid source transient electromagnetic auxiliary device and method suitable for rock wall internal seepage detection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247821A (en) * | 1978-07-20 | 1981-01-27 | Commonwealth Scientific And Industrial Research Organization | Transient electromagnetic prospecting apparatus possessing noise supression features |
| CN102353996A (en) * | 2011-06-28 | 2012-02-15 | 安徽惠洲地下灾害研究设计院 | Directional transient electromagnetic device in drill hole and measurement method thereof |
| CN202256697U (en) * | 2011-09-29 | 2012-05-30 | 北京先驱高技术开发公司 | Deep sea transient electromagnetic detection device |
| CN102681018A (en) * | 2011-03-10 | 2012-09-19 | 福州勘达源电子科技有限公司 | Transient electromagnetic instrument for mine and transient electromagnetic signal processing method |
| CN102707659A (en) * | 2012-06-05 | 2012-10-03 | 北京工业大学 | Master control system of transient electromagnetic detecting instrument and use method of master control system |
| CN203480045U (en) * | 2013-09-18 | 2014-03-12 | 安徽惠洲地下灾害研究设计院 | Roadway hole transient electromagnetic device |
-
2013
- 2013-09-18 CN CN201310427474.XA patent/CN103499841B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247821A (en) * | 1978-07-20 | 1981-01-27 | Commonwealth Scientific And Industrial Research Organization | Transient electromagnetic prospecting apparatus possessing noise supression features |
| CN102681018A (en) * | 2011-03-10 | 2012-09-19 | 福州勘达源电子科技有限公司 | Transient electromagnetic instrument for mine and transient electromagnetic signal processing method |
| CN102353996A (en) * | 2011-06-28 | 2012-02-15 | 安徽惠洲地下灾害研究设计院 | Directional transient electromagnetic device in drill hole and measurement method thereof |
| CN202256697U (en) * | 2011-09-29 | 2012-05-30 | 北京先驱高技术开发公司 | Deep sea transient electromagnetic detection device |
| CN102707659A (en) * | 2012-06-05 | 2012-10-03 | 北京工业大学 | Master control system of transient electromagnetic detecting instrument and use method of master control system |
| CN203480045U (en) * | 2013-09-18 | 2014-03-12 | 安徽惠洲地下灾害研究设计院 | Roadway hole transient electromagnetic device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090306A (en) * | 2014-07-01 | 2014-10-08 | 中煤科工集团西安研究院有限公司 | Method for detecting radial water cut abnormal body in underground coal mine drilled hole |
| CN104714256A (en) * | 2015-03-18 | 2015-06-17 | 安徽惠洲地质安全研究院股份有限公司 | Quick well wall and wall back nondestructive detecting system based on transient electromagnetic method and detection method of the detection system |
| CN106033128B (en) * | 2015-03-18 | 2018-07-10 | 安徽惠洲地质安全研究院股份有限公司 | A kind of safety cap with roof water inrush warning function |
| CN106033128A (en) * | 2015-03-18 | 2016-10-19 | 安徽惠洲地质安全研究院股份有限公司 | Safety helmet with top board water inrush early warning function |
| CN105717544B (en) * | 2016-04-26 | 2018-03-23 | 吉林大学 | The transient electromagnetic emitting-receiving system that collection storage in real time and data are released into diagram |
| CN105717544A (en) * | 2016-04-26 | 2016-06-29 | 吉林大学 | Transient electromagnetic emitting-receiving system for real-time acquisition-storage and data mapping explanation |
| CN106970424A (en) * | 2017-03-17 | 2017-07-21 | 中煤科工集团西安研究院有限公司 | A kind of coal mine hole lane transient electromagnetic superposition forward probe device and method |
| CN106970424B (en) * | 2017-03-17 | 2019-05-28 | 中煤科工集团西安研究院有限公司 | A kind of coal mine hole lane transient electromagnetic is superimposed forward probe device and method |
| CN107703552A (en) * | 2017-09-21 | 2018-02-16 | 武汉长盛煤安科技有限公司 | A kind of mining drilling three-dimensional orientation transient electromagnetic forward probe device and method |
| CN108227012A (en) * | 2017-12-27 | 2018-06-29 | 湖南五维地质科技有限公司 | Obtain the device and method of the ground end data of set depth in target area |
| CN113687428A (en) * | 2021-08-25 | 2021-11-23 | 天津市嘉信技术工程公司 | Accurate electromagnetic calibration method for ultra-deep underground pipeline position |
| CN113687428B (en) * | 2021-08-25 | 2023-07-14 | 天津市嘉信技术工程公司 | Precise electromagnetic calibration method for ultra-deep underground pipeline azimuth |
| CN114994772A (en) * | 2022-05-26 | 2022-09-02 | 山东大学 | Solid source transient electromagnetic auxiliary device and method suitable for rock wall internal seepage detection |
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