CN103630946A - Single-hole electromagnetic wave tomography advanced detection device and method - Google Patents
Single-hole electromagnetic wave tomography advanced detection device and method Download PDFInfo
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Abstract
The invention designs a single-hole electromagnetic wave tomography advanced detection device and method. A probe is disposed in a borehole. A field main unit controls the probe to transmit, receive, acquire, and transfer signals. Geological formation conditions of different-radius rock formations around the borehole where the probe locates are detected by transmitting and receiving a group of electromagnetic waves different in frequency; apparent resistivities of the different-radius formations around the borehole where the probe locates are calculated by the field main unit; the probe is advanced by a push bar; the steps above are repeatedly performed on each measuring spot, so that the apparent resistivities of the different-radius formations around the borehole at the different-depth measuring spots in the bore can be detected, a map of apparent resistivities of the different-radius formations around the whole borehole is generated, geographical features of the cylindrical space centering on the axis of the borehole can be judged according to the map of apparent resistivities, and analysis and judgment for whether or not the formations are water-logged stratums or contain water-logged geological structures and the like can be made.
Description
Technical field
The present invention relates to applied geophysics electromagnetic surveying technical field, refer to particularly a kind of single hole electromagnetic wave tomography forward probe device and method.
Technical background
Forward probe be mainly digging laneway meet head on to utilize direct or indirect method to tunnel, tunnelling direction surveys, survey the place ahead and whether have harmful tectonic structure or rich water body and conduit pipe, for the safety in tunnel, tunnel detailed detection information is provided.
Direct method for colliery forward probe is probing method at present, and indirect method is geophysical prospecting, although the result that the method for wherein drilling is drilled is reliable, construction period is longer, and expense is higher, larger to the normal Influence of production in tunnel, tunnel.
The geophysical prospecting that can be used at present forward probe mainly contains four kinds, is respectively three electrode method forward probe method, Mine Transient Electromagnetic Method, seismic wave method and underground geological radar method.Wherein seismic wave method mainly solves the problem at tectonic structure interface, to the watery of structure, cannot make an explanation; Mining geological radar is now mainly in the research trial period, and its investigation depth is less.
These geophysical methods are all a kind of forward probe methods of tunnel, tunnel or workplace above, because tunnel or workplace disturb larger, the various metallic facilities such as the development machine in tunnel, tunnel, the rail of base plate, H-shaped steel supporting, bolt supporting, travelling belt support are larger on observed result impact, simultaneously, Field design, data observation and Analysis on Results are more complicated, and detecting parameter is single, only utilized parameter of resistivity, getting rid of multi-solution ability, there is multi-solution in result.If adopt above-mentioned several different methods to be used in combination, greatly increased again the forecast cost of advanced prediction.
List of references: < < electromagnetic sounding method principle > > nineteen ninety, Geology Publishing House, Piao Huarong work; < < TDEM principle > > Central South University in 2007 publishes, and the vessel used to hold grain at the imperial sacrifice of ox is write.
Summary of the invention
Object of the present invention will provide a kind of single hole electromagnetic wave tomography forward probe device and method exactly, by these apparatus and method, the boring that can meet head on to driving tunnel and tunnel around the rich water body within the scope of 30～50 meters and conduit pipe etc. deleteriously plastid carry out meticulous effective detection forecast.
For realizing this object, the single hole electromagnetic wave tomography forward probe device that the present invention is designed, it is characterized in that: it comprises on-the-spot main frame, probe, be arranged on the transmitting coil in probe, receiving coil, radiating circuit, receiving circuit, single-chip microcomputer, battery, probe network interface, wherein, the signal output part of described radiating circuit is connected with the signal input part of transmitting coil, the signal input part of receiving circuit is connected with the signal output part of receiving coil, the communication ends of described radiating circuit and receiving circuit is all connected with the communication ends of single-chip microcomputer, the data communication end of described single-chip microcomputer is connected with the data communication end of on-the-spot main frame by probe network interface, described battery is respectively to radiating circuit, receiving circuit and single-chip microcomputer power supply,
Described radiating circuit and transmitting coil can be launched the detection electromagnetic wave of different frequency around to boring to be measured under the control of single-chip microcomputer, described receiving circuit and receiving coil are used for receiving boring to be measured around to surveying electromagnetic response electromagnetic wave signal, and this response electromagnetic wave signal has a plurality of different frequencies corresponding with surveying electromagnetic wave phase;
Described monolithic function will respond electromagnetic wave signal digitized processing, and the response electromagnetic wave signal after digitized processing is transported to on-the-spot main frame by probe network interface, described on-the-spot main frame is for obtaining the apparent resistivity value of detection electromagnetic response and the radius of investigation of corresponding frequencies of each frequency according to the response electromagnetic wave digital signal of different frequency and corresponding frequency computation part, and by the detection electromagnetic wave of all different frequencies and with each, survey apparent resistivity value that wave frequency is corresponding and the radius of investigation of corresponding frequencies generates the boring to be measured apparent resistivity collection of illustrative plates of different radii country rock around.
Utilize above-mentioned single hole electromagnetic wave tomography forward probe device to carry out a method for boring forward probe to be measured, it is characterized in that, it comprises the steps:
Step 1: probe is placed in to drilling orifice to be measured;
Step 2: on-the-spot main frame makes the detection electromagnetic wave of transmitting coil transmitting different frequency by Single-chip Controlling radiating circuit;
Step 3: the detection electromagnetic wave of different frequency forms the response electromagnetic wave of different frequency in boring to be measured, receiving coil receives the response electromagnetic wave of above-mentioned different frequency, and by the response electromagnetic transmission of this different frequency to receiving circuit;
Step 4: receiving circuit carries out Signal Pretreatment to the response electromagnetic wave of the different frequency receiving, and the response electromagnetic wave of different frequency being converted to the response electromagnetic wave digital signal of different frequency, receiving circuit is transferred to on-the-spot main frame by the response electromagnetic wave digital signal of described different frequency by single-chip microcomputer;
Step 5: on-the-spot main frame obtains the apparent resistivity value of detection electromagnetic response and the radius of investigation of corresponding frequencies of each frequency according to the response electromagnetic wave digital signal of above-mentioned different frequency and corresponding frequency computation part, on-the-spot main frame surveys by the detection electromagnetic wave of all different frequencies and with each apparent resistivity value that wave frequency is corresponding and the radius of investigation of corresponding frequencies generates the boring to be measured apparent resistivity collection of illustrative plates of different radii country rock around;
Step 6: according to the apparent resistivity collection of illustrative plates obtaining in step 5, whether infer in probe surrounding space exists post non of low resistance body abnormal, if exist post non of low resistance body abnormal, according to post non of low resistance body abnormal results, analyze in probe surrounding space whether have water content or moisture tectonic structure, so just realized the forward probe of boring to be measured.
Beneficial effect of the present invention:
Application the present invention can realize the boring of tunnel, tunnelling is carried out to forward probe forecast.Than existing advanced prediction equipment and method, beneficial effect of the present invention is mainly manifested in:
(1) adopt the present invention, electromagnetic wave is launched to receiving transducer to be arranged in boring, by one group of electromagnetic wave of transmitting height different frequency, survey the boring rock stratum geologic feature of different radii distance around, judgement boring has or not the deleteriously plastid such as water content around in certain limit.Probe is advanced in boring and survey with certain sensing point distance, can make full use of the degree of depth of whole boring, survey the whole boring stratum characteristic in column around, investigative range is large, information is many, and the test result of adjacent measuring point can be verified mutually, accurately and reliably, has eliminated the multi-solution that result of detection exists.In addition, the present invention can greatly reduce the quantity of surveying boring, saves time and cost, improves working efficiency, has also improved the elimination ability of the latent flood of coal mine down-hole tunnel driving simultaneously.
(2) adopt the present invention, realize one group of electromagnetic wave transmitting of different frequency, detection data amount is many, in boring, avoid again the artificial strong jamming background in down-hole (due to boring, around country rock is single simultaneously, the various metallic facilities such as rail, H-shaped steel supporting, bolt supporting, travelling belt support that there is no development machine, base plate), improve identification and the processing power of feeble signal, can guarantee result of detection accurately and reliably like this, eliminated the multi-solution that result of detection exists, for instructing tunnelling that more scientific foundation is provided.
(3) adopt the present invention, in the time of can realizing on-the-spot host detection, show in real time that result of detection, automatic analysis one-tenth figure also forecast, without complicated artificial data analysis and processing stage; Can provide fast reliable analysis and prediction data for geology detecting personnel.Therefore, device of the present invention possesses the advantages such as operability, validity and practicality.
The present invention realizes tunnel boring forward probe, (hole in the place ahead at tunnelling face in advance to utilize tunnel, relative development end, boring forwards creep into) boring carry out physical prospecting, boring is around carried out to fine scanning proximity detection within the scope of 30～50 meters of radiuses, be probing and the organic combination of physical prospecting, so not only can improve the detection accuracy of physical prospecting but also can reduce the drilling hole amount of probing, accomplish the leading accurate detection of digging laneway.
Accompanying drawing explanation
Fig. 1 is the use view of structure division of the present invention;
Fig. 2 is the structured flowchart of on-the-spot host machine part in the present invention;
Fig. 3 is the structured flowchart of probe segment in the present invention;
Fig. 4 is the structured flowchart of transmitting coil triangle cylindricality mount pad part in the present invention;
Fig. 5 is the structured flowchart of receiving coil triangle cylindricality mount pad part in the present invention.
In figure, 1-on-the-spot main frame, 1.1-central processing unit, 1.2-storer, 1.3-human-computer interaction device, 1.4-main frame network interface, 1.5-system bus, 2-probe, 2.1-transmitting coil, 2.2-receiving coil, 2.3-radiating circuit, 2.4-receiving circuit, 2.5-single-chip microcomputer, 2.6-battery, 2.7-probe network interface, 3-netting twine cable, 4-push rod, 5-boring to be measured, 6-transmitting coil triangle cylindricality mount pad, 7-receiving coil triangle cylindricality mount pad, 8-tunnel, 9-country rock.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Single hole electromagnetic wave tomography forward probe device as described in Fig. 1 and Fig. 3, it comprises on-the-spot main frame 1, probe 2, be arranged on the transmitting coil 2.1 in probe 2, receiving coil 2.2, radiating circuit 2.3, receiving circuit 2.4, single-chip microcomputer 2.5, battery 2.6, probe network interface 2.7, wherein, the signal output part of described radiating circuit 2.3 is connected with the signal input part of transmitting coil 2.1, the signal input part of receiving circuit 2.4 is connected with the signal output part of receiving coil 2.2, the communication ends of described radiating circuit 2.3 and receiving circuit 2.4 is all connected with the communication ends of single-chip microcomputer 2.5, the data communication end of described single-chip microcomputer 2.5 is connected with the data communication end of on-the-spot main frame 1 by probe network interface 2.7, described battery 2.6 is respectively to radiating circuit 2.3, receiving circuit 2.4 and single-chip microcomputer 2.5 power supplies,
Described radiating circuit 2.3 and transmitting coil 2.1 can be launched the detection electromagnetic wave of different frequency around to boring 5 to be measured under the control of single-chip microcomputer 2.5, described receiving circuit 2.4 and receiving coil 2.2 are for receiving boring 5 to be measured around to surveying electromagnetic response electromagnetic wave signal, and this response electromagnetic wave signal has a plurality of different frequencies corresponding with surveying electromagnetic wave phase;
Described single-chip microcomputer 2.5 can be by response electromagnetic wave signal digitized processing, and the response electromagnetic wave signal after digitized processing is transported to on-the-spot main frame 1 by probe network interface 2.7, described on-the-spot main frame 1 is (above-mentioned according to the response electromagnetic wave digital signal of different frequency with corresponding frequency computation part obtains the apparent resistivity value of detection electromagnetic response of each frequency and the computation process of the radius of investigation of corresponding frequencies is prior art for obtain the apparent resistivity value of detection electromagnetic response of each frequency and the radius of investigation of corresponding frequencies according to the response electromagnetic wave digital signal of different frequency and corresponding frequency computation part, refer to list of references: < < electromagnetic sounding method principle > > nineteen ninety, Geology Publishing House, Piao Huarong work, < < TDEM principle > > Central South University in 2007 publishes, and the vessel used to hold grain at the imperial sacrifice of ox is write.), and by the detection electromagnetic wave of all different frequencies and with each, survey apparent resistivity value that wave frequency is corresponding and the radius of investigation of corresponding frequencies generates the boring 5 to be measured apparent resistivity collection of illustrative plates of different radii country rock 9 around.(above-mentioned by the detection electromagnetic wave of all different frequencies and with each radius of investigation of surveying apparent resistivity value that wave frequency is corresponding and corresponding frequencies generate boring 5 to be measured around the process of the apparent resistivity collection of illustrative plates of different radii country rock 9 be prior art, refer to list of references: < < electromagnetic sounding method principle > > nineteen ninety, Geology Publishing House, Piao Huarong work; < < TDEM principle > > Central South University in 2007 publishes, and the vessel used to hold grain at the imperial sacrifice of ox is write.）
In technique scheme, as shown in Figure 4 and Figure 5, it also comprises transmitting coil triangle cylindricality mount pad 6 and receiving coil triangle cylindricality mount pad 7, transmitting coil 2.1 and receiving coil 2.2 all have three groups, described three groups of transmitting coils 2.1 are separately positioned on three sides of transmitting coil triangle cylindricality mount pad 6, and described three groups of receiving coils 2.2 are separately positioned on three sides of receiving coil triangle cylindricality mount pad 7.Above-mentioned three groups of receiving coils 2.2 are connected in parallel and connect receiving circuit 2.4, and above-mentioned three groups of transmitting coils 2.1 are connected in parallel and connect radiating circuit 2.3.
Above-mentioned transmitting coil triangle cylindricality mount pad 6 and receiving coil triangle cylindricality mount pad 7 are epoxy bar mount pad.This design can make transmitting coil 2.1 and the comprehensive transmitting of receiving coil 2.2, receive electromagnetic wave signal, above-mentioned transmitting coil 2.1 and receiving coil 2.2 respectively form transmitting by three groups of coils and receive trihedral, three groups of transmitting coils are launched one group of electromagnetic wave of different frequencies, three groups of receiving coils receive the electromagnetic response signal of different frequency simultaneously simultaneously.Three groups of transmitting coils 2.1 are launched simultaneously, one group of electromagnetic wave of transmitting different frequency, three groups of receiving coils 2.2 receive the electromagnetic response signal of different frequency simultaneously, above-mentioned three groups of transmitting coils 2.1 and three groups of receiving coils 2.2 transmit and receive electromagnetic wave simultaneously and have high conformity, fireballing advantage, three groups of transmitting coils 2.1 and three groups of receiving coils 2.2 all adopt long 500～1000mm, the overlapping loop line arrangement form of rectangle of wide 20～30mm.The overlapping loop line arrangement form of above-mentioned rectangle has advantages of that response signal is strong.
In technique scheme, radiating circuit 2.3 is built in probe 2 with receiving coil 2.2 with transmitting coil 2.1, receiving circuit 2.4, the two adopts overlapping loop line (transmitting coil 2.1 is the same with receiving coil 2.2 large, puts together), can improve the antijamming capability that receives feeble signal.
In technique scheme, as shown in Figure 2, described on-the-spot main frame 1 comprises central processing unit 1.1, storer 1.2, human-computer interaction device 1.3, main frame network interface 1.4 and system bus 1.5, wherein, described storer 1.2, human-computer interaction device 1.3 and central processing unit 1.1 are all connected with system bus 1.5, and described system bus 1.5 connects probe network interface 2.7 by main frame network interface 1.4.Above-mentioned human-computer interaction device 1.3 comprises touch-screen, display screen, USB interface and photoelectricity knob (being equivalent to computer mouse).Above-mentioned main frame network interface 1.4 is connected by netting twine cable 3 with probe network interface 2.7.
In technique scheme, it also comprises the push rod 4 that is arranged on probe 2 tail ends.
Utilize above-mentioned single hole electromagnetic wave tomography forward probe device to carry out a method for boring forward probe to be measured, it comprises the steps:
Step 1: probe 2 is placed in to boring to be measured 5 apertures;
Step 2: on-the-spot main frame 1 controls by single-chip microcomputer 2.5 the detection electromagnetic wave that radiating circuit 2.3 makes transmitting coil 2.1 transmitting different frequencies;
Step 3: the detection electromagnetic wave of different frequency is at the response electromagnetic wave of the interior formation different frequency of boring 5 to be measured, receiving coil 2.2 receives the response electromagnetic wave of above-mentioned different frequency, and by the response electromagnetic transmission of this different frequency to receiving circuit 2.4;
Step 4: the response electromagnetic wave of 2.4 pairs of different frequencies that receive of receiving circuit carries out Signal Pretreatment, and the response electromagnetic wave of different frequency being converted to the response electromagnetic wave digital signal of different frequency, receiving circuit 2.4 is transferred to on-the-spot main frame 1 by the response electromagnetic wave digital signal of described different frequency by single-chip microcomputer 2.5;
Step 5: it is (above-mentioned according to the response electromagnetic wave digital signal of different frequency with corresponding frequency computation part obtains the apparent resistivity value of detection electromagnetic response of each frequency and the computation process of the radius of investigation of corresponding frequencies is prior art that on-the-spot main frame 1 obtains the apparent resistivity value of detection electromagnetic response of each frequency and the radius of investigation of corresponding frequencies according to the response electromagnetic wave digital signal of above-mentioned different frequency and corresponding frequency computation part, refer to list of references: < < electromagnetic sounding method principle > > nineteen ninety, Geology Publishing House, Piao Huarong work, < < TDEM principle > > Central South University in 2007 publishes, and the vessel used to hold grain at the imperial sacrifice of ox is write.), on-the-spot main frame 1 by the detection electromagnetic wave of all different frequencies and with each radius of investigation of surveying apparent resistivity value that wave frequency is corresponding and corresponding frequencies generate boring 5 to be measured around the apparent resistivity collection of illustrative plates of different radii country rock 9 (above-mentioned and by the detection electromagnetic wave of all different frequencies and with each radius of investigation of surveying apparent resistivity value that wave frequency is corresponding and corresponding frequencies generate boring 5 to be measured around the process of the apparent resistivity collection of illustrative plates of different radii country rock 9 be prior art, refer to list of references: < < electromagnetic sounding method principle > > nineteen ninety, Geology Publishing House, Piao Huarong work, < < TDEM principle > > Central South University in 2007 publishes, and the vessel used to hold grain at the imperial sacrifice of ox is write.) (" skin effect " theory according to electromagnetic wave on stratum, the electromagnetic wave detection near distance of high frequency, the electromagnetic wave detection distance of low frequency; Therefore,, by one group of electromagnetic wave of transmitting different frequency, can survey and generate the boring formation apparent resistivity collection of illustrative plates of different radii around.）；
Step 6: according to the apparent resistivity collection of illustrative plates obtaining in step 5, whether infer in probe 2 surrounding spaces exists post non of low resistance body abnormal, if exist post non of low resistance body abnormal, according to post non of low resistance body abnormal results, analyze probe and whether have water content or moisture tectonic structure (if the apparent resistivity collection of illustrative plates that boring generates has low-resistivity region, then analyze together and cause the reason in low-resistivity region to infer whether there is water content according to boring geologic information around) in 2 surrounding spaces around; (above-mentionedly according to post non of low resistance body abnormal results, analyze probe whether to have water content or moisture architectonic process in 2 surrounding spaces be prior art, refer to list of references: < < electromagnetic sounding method principle > > nineteen ninety, Geology Publishing House, Piao Huarong work; < < TDEM principle > > Central South University in 2007 publishes, and the vessel used to hold grain at the imperial sacrifice of ox is write.）。
Step 7: utilize push rod 4 will pop one's head in 2 by boring to be measured 5 apertures to iterative method at the bottom of hole, and utilize the boring forward probe method to be measured described in step 2～step 6 to carry out point by point scanning detection to boring 5 to be measured, generate the apparent resistivity collection of illustrative plates by all sensing points at the bottom of boring to be measured 5 apertures to hole.
In the step 7 of technique scheme, by probe 2, by boring to be measured 5 apertures, to the step pitch of iterative method at the bottom of hole, it is 1～2 meter.
In technique scheme, described probe 2 is coaxially arranged with boring 5 to be measured, in described step 6, according to the apparent resistivity collection of illustrative plates obtaining in step 4, infer that probe 2 positions sentence axis centered by boring 5 to be measured, whether radius is to exist post non of low resistance body abnormal within the scope of the cylindrical space of 30～50 meters.
The electromagnetic frequency range of described detection is 50kHz～1kHz, and the electromagnetic frequency range of described response is 50kHz～1kHz, and described radius of investigation is 0.5～50 meter.
In specific implementation process: during transmitting 50kHz electromagnetic wave, it is 500 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 0.5 meter; During transmitting 40kHz electromagnetic wave, it is 550 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 2.0 meters; During transmitting 30kHz electromagnetic wave, it is 530 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 6.5 meters; During transmitting 20kHz electromagnetic wave, it is 510 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 10.5 meters; During transmitting 10kHz electromagnetic wave, it is 500 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 20.1 meters; During transmitting 5kHz electromagnetic wave, it is 200 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 30.0 meters; During transmitting 2.5kHz electromagnetic wave, calculating apparent resistivity is 150 ohm/meter, and radius of investigation is 35.5 meters; During transmitting 1kHz electromagnetic wave, it is 600 ohm/meter that the response electromagnetic signal of reception is calculated apparent resistivity, and radius of investigation is 48.5 meters; By launching the electromagnetic wave of 8 different frequencies, survey, the response electromagnetic signal receiving generates the apparent resistivity collection of illustrative plates of bore detecting different radii, in 30～40 meters of scope left and right of boring radius, there is a low-resistance region, then infer together whether have water content to exist according to geologic information.
The content that this instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. a single hole electromagnetic wave tomography forward probe device, it is characterized in that: it comprises on-the-spot main frame (1), probe (2), be arranged on the transmitting coil (2.1) in probe (2), receiving coil (2.2), radiating circuit (2.3), receiving circuit (2.4), single-chip microcomputer (2.5), battery (2.6), probe network interface (2.7), wherein, the signal output part of described radiating circuit (2.3) is connected with the signal input part of transmitting coil (2.1), the signal input part of receiving circuit (2.4) is connected with the signal output part of receiving coil (2.2), the communication ends of described radiating circuit (2.3) and receiving circuit (2.4) is all connected with the communication ends of single-chip microcomputer (2.5), the data communication end of described single-chip microcomputer (2.5) is connected with the data communication end of on-the-spot main frame (1) by probe network interface (2.7), described battery (2.6) is respectively to radiating circuit (2.3), receiving circuit (2.4) and single-chip microcomputer (2.5) power supply,
Described radiating circuit (2.3) and transmitting coil (2.1) can be launched the detection electromagnetic wave of different frequency around under the control of single-chip microcomputer (2.5) to boring to be measured (5), described receiving circuit (2.4) and receiving coil (2.2) are for receiving boring to be measured (5) around to surveying electromagnetic response electromagnetic wave signal, and this response electromagnetic wave signal has a plurality of different frequencies corresponding with surveying electromagnetic wave phase;
Described single-chip microcomputer (2.5) can be by response electromagnetic wave signal digitized processing, and the response electromagnetic wave signal after digitized processing is transported to on-the-spot main frame (1) by probe network interface (2.7), described on-the-spot main frame (1) is for obtaining the apparent resistivity value of detection electromagnetic response and the radius of investigation of corresponding frequencies of each frequency according to the response electromagnetic wave digital signal of different frequency and corresponding frequency computation part, and by the detection electromagnetic wave of all different frequencies and with each, survey apparent resistivity value that wave frequency is corresponding and the radius of investigation of corresponding frequencies generates boring to be measured (5) the apparent resistivity collection of illustrative plates of different radii country rock (9) around.
2. single hole electromagnetic wave tomography forward probe device according to claim 1, it is characterized in that: it also comprises transmitting coil triangle cylindricality mount pad (6) and receiving coil triangle cylindricality mount pad (7), transmitting coil (2.1) and receiving coil (2.2) all have three groups, described three groups of transmitting coils (2.1) are separately positioned on three sides of transmitting coil triangle cylindricality mount pad (6), and described three groups of receiving coils (2.2) are separately positioned on three sides of receiving coil triangle cylindricality mount pad (7).
3. single hole electromagnetic wave tomography forward probe device according to claim 2, is characterized in that: described transmitting coil triangle cylindricality mount pad (6) and receiving coil triangle cylindricality mount pad (7) are epoxy bar mount pad.
4. single hole electromagnetic wave tomography forward probe device according to claim 1, is characterized in that: it also comprises the push rod (4) that is arranged on probe (2) tail end.
5. single hole electromagnetic wave tomography forward probe device according to claim 1, it is characterized in that: described on-the-spot main frame (1) comprises central processing unit (1.1), storer (1.2), human-computer interaction device (1.3), main frame network interface (1.4) and system bus (1.5), wherein, described storer (1.2), human-computer interaction device (1.3) and central processing unit (1.1) are all connected with system bus (1.5), and described system bus (1.5) connects probe network interface (2.7) by main frame network interface (1.4).
6. utilize single hole electromagnetic wave tomography forward probe device described in claim 1～5 any one to carry out a method for boring forward probe to be measured, it is characterized in that, it comprises the steps:
Step 1: will pop one's head in (2) are placed in boring to be measured (5) aperture;
Step 2: on-the-spot main frame (1) controls by single-chip microcomputer (2.5) the detection electromagnetic wave that radiating circuit (2.3) makes transmitting coil (2.1) transmitting different frequency;
Step 3: the detection electromagnetic wave of different frequency forms the response electromagnetic wave of different frequency in boring to be measured (5), receiving coil (2.2) receives the response electromagnetic wave of above-mentioned different frequency, and by the response electromagnetic transmission of this different frequency to receiving circuit (2.4);
Step 4: receiving circuit (2.4) carries out Signal Pretreatment to the response electromagnetic wave of the different frequency receiving, and the response electromagnetic wave of different frequency being converted to the response electromagnetic wave digital signal of different frequency, receiving circuit (2.4) is transferred to on-the-spot main frame (1) by the response electromagnetic wave digital signal of described different frequency by single-chip microcomputer (2.5);
Step 5: on-the-spot main frame (1) obtains the apparent resistivity value of detection electromagnetic response and the radius of investigation of corresponding frequencies of each frequency according to the response electromagnetic wave digital signal of above-mentioned different frequency and corresponding frequency computation part, on-the-spot main frame (1) surveys by the detection electromagnetic wave of all different frequencies and with each apparent resistivity value that wave frequency is corresponding and the radius of investigation of corresponding frequencies generates boring to be measured (5) the apparent resistivity collection of illustrative plates of different radii country rock (9) around;
Step 6: according to the apparent resistivity collection of illustrative plates obtaining in step 5, whether infer in probe (2) surrounding space exists post non of low resistance body abnormal, if exist post non of low resistance body abnormal, according to post non of low resistance body abnormal results, analyze in probe (2) surrounding space whether have water content or moisture tectonic structure, so just realized the forward probe of boring to be measured.
7. the method for boring forward probe to be measured according to claim 6, it is characterized in that: after described step 6, also comprise step 7: will pop one's head in (2) by boring to be measured (5) aperture to iterative method at the bottom of hole, and utilize the boring forward probe method to be measured described in step 2～step 6 to carry out point by point scanning detection to boring to be measured (5), generate the apparent resistivity collection of illustrative plates by all sensing points at the bottom of boring to be measured (5) aperture to hole.
8. the method for boring forward probe to be measured according to claim 7, is characterized in that: in described step 7, by popping one's head in, (2) are 1～2 meter by boring to be measured (5) aperture to the step pitch of iterative method at the bottom of hole.
9. the method for boring forward probe to be measured according to claim 6, it is characterized in that: described probe (2) is coaxially arranged with boring to be measured (5), in described step 6, according to the apparent resistivity collection of illustrative plates obtaining in step 4, infer that probe (2) position sentences axis centered by boring to be measured (5), whether radius is to exist post non of low resistance body abnormal within the scope of the cylindrical space of 30～50 meters.
10. the method for boring forward probe to be measured according to claim 6, is characterized in that: the electromagnetic frequency range of described detection is 50kHz～1kHz, and the electromagnetic frequency range of described response is 50kHz～1kHz, and radius of investigation is 0.5～50 meter.
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| CN104656153A (en) * | 2015-01-29 | 2015-05-27 | 武汉长盛煤安科技有限公司 | While-drilling borehole electromagnetic wave tomography advanced detection device and method |
| CN104695941A (en) * | 2015-03-10 | 2015-06-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Intelligent imaging device for hole wall of horizontal hole |
| CN106940452A (en) * | 2015-09-21 | 2017-07-11 | 安徽理工大学 | It is a kind of that there is the exploitation method for drawing roadway surrounding rock three-dimensional geological variation diagram |
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| CN110244368A (en) * | 2019-07-09 | 2019-09-17 | 中国矿业大学(北京) | Scanning probe device and method in a kind of hole based on electromagnetic induction principle |
| CN111948645A (en) * | 2020-08-07 | 2020-11-17 | 武汉长盛煤安科技有限公司 | Coal mine roadway and tunnel drilling while drilling radar advanced detection device and method |
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| CN104360344A (en) * | 2014-11-21 | 2015-02-18 | 西安科技大学 | Algorithm for detecting thickness of upper protection layer on coal mine working face on basis of radio wave loss characteristics |
| CN104656153A (en) * | 2015-01-29 | 2015-05-27 | 武汉长盛煤安科技有限公司 | While-drilling borehole electromagnetic wave tomography advanced detection device and method |
| CN104656153B (en) * | 2015-01-29 | 2015-09-02 | 武汉长盛煤安科技有限公司 | With brill Borehole Electromagnetic Wave Techniques tomography forward probe device and method |
| CN104695941A (en) * | 2015-03-10 | 2015-06-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Intelligent imaging device for hole wall of horizontal hole |
| CN106940452A (en) * | 2015-09-21 | 2017-07-11 | 安徽理工大学 | It is a kind of that there is the exploitation method for drawing roadway surrounding rock three-dimensional geological variation diagram |
| 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 |
| CN108594313A (en) * | 2018-06-05 | 2018-09-28 | 中煤科工集团西安研究院有限公司 | Hand propelled time domain electromagnetic well logging apparatus and method in a kind of coal mine down-hole drilling |
| CN109884720A (en) * | 2019-03-21 | 2019-06-14 | 武汉长盛工程检测技术开发有限公司 | Determine the ground well three-dimensional combination frequency electromagnetic exploration apparatus and method of watery |
| CN109884720B (en) * | 2019-03-21 | 2021-07-30 | 武汉长盛工程检测技术开发有限公司 | Device and method for determining three-dimensional composite frequency electromagnetic detection of water-rich ground well |
| CN110244368A (en) * | 2019-07-09 | 2019-09-17 | 中国矿业大学(北京) | Scanning probe device and method in a kind of hole based on electromagnetic induction principle |
| CN110244368B (en) * | 2019-07-09 | 2024-04-26 | 中国矿业大学(北京) | In-hole scanning detection device and method based on electromagnetic induction principle |
| CN111948645A (en) * | 2020-08-07 | 2020-11-17 | 武汉长盛煤安科技有限公司 | Coal mine roadway and tunnel drilling while drilling radar advanced detection device and method |
| CN114495431A (en) * | 2022-01-14 | 2022-05-13 | 深圳市地质局 | Physical detection system for detecting geological structure |
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