CN103064129B - Underground coal mine magnetic shake comprehensive survey instrument and magnetic shake composite geophysical methods - Google Patents
Underground coal mine magnetic shake comprehensive survey instrument and magnetic shake composite geophysical methods Download PDFInfo
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- CN103064129B CN103064129B CN201210588649.0A CN201210588649A CN103064129B CN 103064129 B CN103064129 B CN 103064129B CN 201210588649 A CN201210588649 A CN 201210588649A CN 103064129 B CN103064129 B CN 103064129B
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Abstract
Underground coal mine magnetic shake comprehensive survey instrument and magnetic shake composite geophysical methods.The present invention relates to a kind of underground coal mine magnetic shake comprehensive survey instrument, comprise transmitter and receiver, it is characterized in that: transmitter comprises emission power, countdown circuit, transmitting coil; Receiver comprises receiving coil, vibrations wave detector, Received signal strength conditioning circuit, ADC, reception power supply and data processing platform (DPP).This underground coal mine magnetic shake comprehensive survey instrument is particularly suitable for the geology harm such as detection coal mine gob, lava development area, tomography, shatter belt water-filling; With the structure of shallow earthquake method detection geologic body, the depth coefficient of transient electromagnetic method can be corrected, improves the precision of transient electromagnetic method; And can fill up transient electromagnetic method to structure insensitive flaw, reach Quan Ce district without blind spot.
Description
Technical field
The present invention relates to a kind of mine geophysical exploration equipment, particularly a kind of underground coal mine magnetic shake comprehensive survey instrument.
Background technology
Transient electromagnetic method sends transition primary field by transmitting coil to geologic body, and the electric field of this rapid decay responds to the vortex field (secondary field) made new advances in geologic body, and receiving trap detects geological anomalous body by the variation characteristic receiving secondary field.
Transient electromagnetic method major advantage is easy construction, clear to coal mine gob, lava development area, tomography, shatter belt water-filling inversion result.What detect due to transient electromagnetic method is the electrical feature signal of geologic body, so insensitive to the tectonic structure such as tomography, karst collapse col umn, thickness of coal seam of geologic body.
Shallow earthquake method is the transmission of application mine seismic wave, reflection, frequency dispersion principle, can the tectonic structure such as tomography, karst collapse col umn, thickness of coal seam of accurately inverting geologic body.What detect due to shallow earthquake method is the seismic wave of geologic body, so whether water-filling is insensitive to geological anomalous body such as coal mine gob, lava development area, tomography, shatter belts.
Conventional composite geophysical methods carries out data acquisition with Transient Electromagnetic Apparatus and shallow layer seismograph respectively, and carry out inverting to gathered data respectively, behind delineation abnormality district, independent one-tenth figure does contrast and examines.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, provide a kind of underground coal mine magnetic to shake comprehensive survey instrument, this underground coal mine magnetic shake comprehensive survey instrument is particularly suitable for the geology harm such as detection coal mine gob, lava development area, tomography, shatter belt water-filling; With the structure of shallow earthquake method detection geologic body, the depth coefficient of transient electromagnetic method can be corrected, improves the precision of transient electromagnetic method; And can fill up transient electromagnetic method to structure insensitive flaw, reach Quan Ce district without blind spot.
The present invention is achieved in that a kind of underground coal mine magnetic shake comprehensive survey instrument, and comprise transmitter and receiver, transmitter comprises emission power, countdown circuit, transmitting coil; Receiver comprises receiving coil, vibrations wave detector, Received signal strength conditioning circuit, ADC, reception power supply and data processing platform (DPP).Transmitter comprises emission power, countdown circuit, transmitting coil, and transmitting coil is connected to the output terminal of countdown circuit, and emission power is powered to countdown circuit; Countdown circuit produces bipolarity rect.p., launches exciting field by transmitting coil to geologic body; Receiver comprises receiving coil, vibrations wave detector, Received signal strength conditioning circuit, ADC, reception power supply and data processing platform (DPP), receiving coil and vibrations wave detector are connected to Received signal strength conditioning circuit input end, ADC input end is connected to signal conditioning circuit output terminal, ADC output terminal is connected to data processing applicator platform, and reception power supply is nursed one's health circuit, ADC and data processing platform (DPP) to Received signal strength and powered; Receiving coil receives the electromagnetic field of eddy current that geologic body produces, vibrations wave detector receives geologic body vibrations wave field, and electromagnetic field and shock wave field signal are done digital-to-analog conversion by delivering to ADC after the amplification of Received signal strength conditioning circuit, then do Inversion Calculation to data processing platform (DPP).
Described underground coal mine magnetic shake comprehensive survey instrument can be that independently Receiver And Transmitter association forms, and also can be that Receiver And Transmitter is integrated.
Wave detector can be two also can be multiple, for receiving geological data.
Underground coal mine magnetic shakes a comprehensive detection method, comprises the following steps:
A) underground coal mine magnetic shake comprehensive survey instrument is switched to shallow earthquake method, and excite man-made explosion by modes such as hammerings, wave detector obtains seismic method data;
B) underground coal mine magnetic shake comprehensive survey instrument is switched to transient electromagnetic method, and transmitting coil launches transition primary field to geologic body, and receiving coil receives geologic body secondary turbulence field, obtains the sampled data of transient electromagnetic method electrical method;
C) geologic body structural map is drawn with the inverting of shallow earthquake analytic method;
D) data of transient electromagnetic method calculate apparent resistivity by the algorithm of transient electromagnetic method, correct transient electromagnetic method depth coefficient with geologic body construction data, are finally inversed by the apparent resistivity isoline figure of different depth;
E) according to plastid landform practically, topographic correction is carried out to data;
F) Kriging regression method carries out interpolation, and inverting becomes complete 2-D data body.
Conventional composite geophysical methods carries out data acquisition with Transient Electromagnetic Apparatus and shallow layer seismograph respectively, and carry out inverting to gathered data respectively, behind delineation abnormality district, independent one-tenth figure does contrast and examines.
Underground coal mine magnetic shake comprehensive survey instrument of the present invention possesses transient electromagnetic method and shallow earthquake method function, carry out data acquisition by different device simultaneously, unification carries out inverting to gathered data, the mutual supplement with each other's advantages of shallow earthquake method and transient electromagnetic method, instead of both is combined simply.Tool has the following advantages:
1, can respectively with different measurement mechanism image data, real-time;
2, utilize shallow earthquake method can correct the depth coefficient of transient electromagnetic method, improve the inversion accuracy of transient electromagnetic method;
3, can with shallow earthquake method detection geologic body structure, make up transient electromagnetic method to structure insensitive flaw; With transient electromagnetic method detection geologic body water-filling district, make up shallow earthquake method to the abnormal insensitive flaw of rich water, reach Quan Ce district without blind spot.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structured flowchart of the transmitter of underground coal mine magnetic of the present invention shake comprehensive survey instrument.
Fig. 2 is the structured flowchart of the receiver of underground coal mine magnetic of the present invention shake comprehensive survey instrument.
Embodiment
Please refer to Fig. 1 and Fig. 2, be the structured flowchart of the transmitter and receiver of a kind of underground coal mine magnetic shake comprehensive survey instrument of the present invention, comprise transmitter and receiver, transmitter comprises emission power, countdown circuit, transmitting coil; Receiver comprises receiving coil, vibrations wave detector, Received signal strength conditioning circuit, ADC, reception power supply and data processing platform (DPP).
Transmitting coil is connected to the output terminal of countdown circuit, and emission power is powered to countdown circuit; Countdown circuit produces bipolarity rect.p., launches exciting field (abbreviation primary field) by transmitting coil to geologic body; Receiver comprises receiving coil, vibrations wave detector, Received signal strength conditioning circuit, ADC, reception power supply and data processing platform (DPP), receiving coil and vibrations wave detector are connected to Received signal strength conditioning circuit input end, ADC input end is connected to signal conditioning circuit output terminal, ADC output terminal is connected to data processing applicator platform, and reception power supply is nursed one's health circuit, ADC and data processing platform (DPP) to Received signal strength and powered.Receiving coil receives the electromagnetic field of eddy current (abbreviation secondary field) that geologic body produces, and vibrations wave detector receives geologic body vibrations wave field.Deliver to ADC after electromagnetic field and shock wave field signal are amplified by Received signal strength conditioning circuit and do digital-to-analog conversion, then do Inversion Calculation to data processing platform (DPP).
Underground coal mine magnetic shake comprehensive survey instrument can be that independently Receiver And Transmitter association forms, and also can be that Receiver And Transmitter is integrated.Transmitting coil launches the transient electromagnetic field of different frequency; Wave detector can be two also can be multiple, receive geological data; Receiving coil receives the transition secondary field of underground deep.
Geological data and secondary field data can gather by described underground coal mine magnetic shake comprehensive survey instrument simultaneously, real-time; With the structure of shallow earthquake method detection geologic body, correct the depth coefficient of transient electromagnetic method, improve the precision of transient electromagnetic method; The data of transient electromagnetic method calculate apparent resistivity by the algorithm of transient electromagnetic method, correct with depth Conversion Coefficient during geologic body structural map pair, calculate the apparent resistivity isoline figure of different depth; According to plastid landform practically, topographic correction is carried out to data; Carry out interpolation by Kriging regression method, go into complete 2-D data body, the existence of inverting geologic body exception and distribution.
Underground coal mine magnetic of the present invention shakes comprehensive detection method, comprises the following steps:
A) underground coal mine magnetic shake comprehensive survey instrument is switched to shallow earthquake method, and excite man-made explosion by modes such as hammerings, wave detector obtains seismic method data;
B) underground coal mine magnetic shake comprehensive survey instrument is switched to transient electromagnetic method, and transmitting coil launches transition primary field to geologic body, and receiving coil receives geologic body secondary turbulence field, obtains the sampled data of transient electromagnetic method electrical method;
C) geologic body structural map is drawn with the inverting of shallow earthquake analytic method;
D) data of transient electromagnetic method calculate apparent resistivity by the algorithm of transient electromagnetic method, correct transient electromagnetic method depth coefficient with geologic body construction data, are finally inversed by the apparent resistivity isoline figure of different depth;
E) according to plastid landform practically, topographic correction is carried out to data;
F) Kriging regression method carries out interpolation, and inverting becomes complete 2-D data body.
Underground coal mine magnetic shake comprehensive survey instrument of the present invention possesses transient electromagnetic method and shallow earthquake method function, carry out data acquisition by different device simultaneously, unification carries out inverting to gathered data, the mutual supplement with each other's advantages of shallow earthquake method and transient electromagnetic method, instead of both are combined simply, be particularly suitable for the geology harm such as detection coal mine gob, lava development area, tomography, shatter belt water-filling.
Claims (3)
1. the underground coal mine magnetic utilizing underground coal mine magnetic shake comprehensive survey instrument to use shakes comprehensive detection method, described underground coal mine magnetic shake comprehensive survey instrument, comprise transmitter and receiver, transmitter comprises emission power, countdown circuit, transmitting coil, transmitting coil is connected to the output terminal of countdown circuit, and emission power is powered to countdown circuit; Countdown circuit produces bipolarity rect.p., launches exciting field by transmitting coil to geologic body; Receiver comprises receiving coil, vibrations wave detector, Received signal strength conditioning circuit, ADC, reception power supply and data processing platform (DPP), receiving coil and vibrations wave detector are connected to Received signal strength conditioning circuit input end, ADC input end is connected to Received signal strength conditioning circuit output end, ADC output terminal is connected to data processing platform (DPP), and reception power supply is nursed one's health circuit, ADC and data processing platform (DPP) to Received signal strength and powered; Receiving coil receives the electromagnetic field of eddy current that geologic body produces, vibrations wave detector receives geologic body vibrations wave field, and electromagnetic field and shock wave field signal are done digital-to-analog conversion by delivering to ADC after the amplification of Received signal strength conditioning circuit, then do Inversion Calculation to data processing platform (DPP), it is characterized in that: the method comprises the following steps:
A) underground coal mine magnetic shake comprehensive survey instrument is switched to shallow earthquake method, excites man-made explosion with hammer mode, and vibrations wave detector obtains seismic method data;
B) underground coal mine magnetic shake comprehensive survey instrument is switched to transient electromagnetic method, and transmitting coil launches transition exciting field to geologic body, and receiving coil receives geologic body secondary vortex flow electromagnetic field, obtains the sampled data of transient electromagnetic method;
C) geologic body structural map is drawn with the inverting of shallow earthquake analytic method;
D) sampled data of transient electromagnetic method calculates apparent resistivity by the algorithm of transient electromagnetic method, corrects transient electromagnetic method depth coefficient with geologic body construction data, is finally inversed by the apparent resistivity isoline figure of different depth;
E) according to plastid landform practically to steps d) in the data that obtain carry out topographic correction;
F) Kriging regression method carries out interpolation, and inverting becomes complete 2-D data body.
2. the underground coal mine magnetic utilizing underground coal mine magnetic shake comprehensive survey instrument to use according to claim 1 shakes comprehensive detection method, it is characterized in that: described underground coal mine magnetic shake comprehensive survey instrument can be that independently Receiver And Transmitter association forms, and also can be that Receiver And Transmitter is integrated.
3. according to claim 1 utilize underground coal mine magnetic to shake underground coal mine magnetic that comprehensive survey instrument uses shakes comprehensive detection method, it is characterized in that: vibrations wave detector can be two also can be multiple, for receiving seismic method data.
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| CN103336315A (en) * | 2013-06-07 | 2013-10-02 | 中国水电顾问集团昆明勘测设计研究院 | Method adopting transient electromagnetic method and seismic imaging method to detect gold prospecting holes |
| CN103792461B (en) * | 2013-11-21 | 2016-08-17 | 国家电网公司 | A kind of grounded screen breaking point diagnosis method of transient electromagnetic method |
| CN104133254A (en) * | 2014-08-11 | 2014-11-05 | 福州华虹智能科技股份有限公司 | Electric and seismic comprehensive detection instrument for underground coal mine |
| CN104237970B (en) * | 2014-09-23 | 2017-07-07 | 中国石油天然气集团公司 | Electromagnetism of Earthquake joint exploration system and its data acquisition device and collecting method |
| CN104965229A (en) * | 2015-06-10 | 2015-10-07 | 山东科技大学 | Method used for determining range of old mined-out area of coal mine |
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| CN108761524B (en) * | 2018-05-21 | 2019-03-26 | 山东大学 | A kind of portable tunnel seismic wave forward probe system and method |
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| CN111679316B (en) * | 2020-06-19 | 2023-04-28 | 中煤科工集团西安研究院有限公司 | Time alignment method and system for mining multi-seismic acquisition system |
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Address after: 350000 Fourth Floor of Building 3, F District, Fuzhou Software Park, 89 Software Avenue, Gulou District, Fuzhou City, Fujian Province Patentee after: FUZHOU HUAHONG INTELLIGENT TECHNOLOGY CO., LTD. Address before: 350003 Floor 1, Building 6, Fuzhou Software Park B, 89 Software Avenue, Gulou District, Fuzhou City, Fujian Province Patentee before: Fuzhou Huahong Intelligent Technology Co., Ltd. |