CN106646622A - #-shaped three-dimensional electrical prospecting method - Google Patents
#-shaped three-dimensional electrical prospecting method Download PDFInfo
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- CN106646622A CN106646622A CN201611213032.5A CN201611213032A CN106646622A CN 106646622 A CN106646622 A CN 106646622A CN 201611213032 A CN201611213032 A CN 201611213032A CN 106646622 A CN106646622 A CN 106646622A
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Abstract
The invention discloses a #-shaped three-dimensional electrical prospecting method, and the method comprises the steps: carrying out the downward supplying of power based on the exploration target body characteristics and landform morphologic prominence characteristics of an electrical prospecting region through the arrangement of #-shaped three-dimensional electrical prospecting power supply points, an electrical prospecting emitter and electrodes of the power supply points; receiving electric field signals of all measurement points at the same time through employing an electrical prospecting receiver; solving the apparent resistivity and induced electrical parameters of all measurement points when each of #-shaped power supply points carries out the power supply, thereby achieving the #-shaped three-dimensional electrical prospecting. The method can iron out the defects that a two-dimensional electrical prospecting method is poorer in effect, and a conventional three-dimensional electrical prospecting method is low in efficiency; the method inherits the high efficiency of the two-dimensional electrical prospecting method and the good effect of the conventional three-dimensional electrical prospecting method, and achieves a better balance between the prospecting efficiency and prospecting effect.
Description
Technical field
The present invention relates to a kind of three-dimensional electrical prospecting method in Key words exploration geophysics field.
Background technology
In Key words exploration geophysics field, electrical prospecting is divided into one-dimensional, two and three dimensions electrical prospecting.One-dimensional electrical prospecting by
Low in surveying accuracy, effect is poor, does not use substantially at present；Two-dimentional electrical prospecting precision and effect be superior to it is one-dimensional, but explore effect
Rate is less than the latter；Conventional three-dimensional electrical prospecting is divided into the three-dimensional electrical method of completeness, right-angled intersection and Γ shapes arrangement measuring electrode and surveys
Visit, its precision and effect are superior to peacekeeping two dimension, but due on supply terminals and measurement point quantity far more than peacekeeping two dimension,
So as to cause conventional three-dimensional electrical prospecting efficiency far less than peacekeeping two dimension, therefore, although the method has exploration effect well
Really, but only adopt on a small quantity in the very crucial exploration area in part and in the case that funds are very sufficient.
Two-dimentional electrical prospecting needs to arrange electrical prospecting electric power system and measuring system in every exploration line, and rear issue
The data of every exploration line are individually processed as 2-D data according in processing procedure, because actual exploration area is seldom deposited
It is more three-dimensional geological anomalous body in real two dimension geological anomalous body, therefore two-dimentional electrical prospecting achievement is approximate achievement,
So as to cause its exploration effects poor.But because two-dimentional electrical prospecting is powered on the supply terminals of an exploration line, and only same
Carry out electrical method data acquisition in one exploration line, its exploration efficiency is higher, exploration effects are electricity conventional at present better than one-dimensional
Method exploitation method.But because every exploration line of the method is required to arrange electric power system, cause to arrange the workload of electric power system
It is larger；Often arrange that supply lines only measures a measurement line, if exploration area is with a varied topography, vegetation development, can cause to be difficult to
Even supply lines cannot be arranged, so as to the result for causing two-dimentional electrical prospecting to carry out, limit the method in complicated landform
Application.
Assume that certain two-dimentional every survey line in electrical prospecting area has m (m is the positive integer more than 1, same as below) individual supply terminals
With m measurement point, there is n (n is the positive integer more than 1, same as below) bar survey line, surveyed using one pole-monopolar operation device
Visit, then need to arrange m × n supply terminals in two-dimentional electrical prospecting, to gather the individual two-dimentional electrical prospecting data of n × m × (m-1)
(supply terminals itself is not measured).If being based on electrical prospecting principle of reciprocity, above-mentioned investigation and prospecting can be simplified, supply terminals
Number is individual for n × (m-1), and the two-dimentional electrical prospecting data of collection are n × (m-1) × (m-1)/2.If obtaining the electrical of more deep
Feature, then supply terminals need to be extended to beyond survey line end points, supply terminals quantity can accordingly increase, and reduce further the method
Exploration efficiency.
Completeness three-dimensional electrical prospecting method is that the supply terminals to whole exploration area is respectively powered once, and each is powered
During point power supply, need to all measurement point gathered datas in whole exploration area.The method is the geological anomalous body in actual exploration area
Consider as three-dimensional geological anomalous body, more meet actual geological condition.But due to the supply terminals of completeness three-dimensional electrical prospecting
Need to cover all measurement points in whole three-dimensional electrical prospecting area, and the quantity of supply terminals is equal to measurement point quantity, it is right to need
All supply terminals in whole exploration area are powered respectively, are needed when each supply terminals is powered to all in whole exploration area
Measurement point gathered data, due to supply terminals quantity excessively, so as to cause workload to be multiplied.
(wherein m is the grid of one measurement line of X-direction for m × n to assume certain three-dimensional electrical prospecting rectangle region grid number
Number, n is the grid number of one measurement line of Y-direction), explored using one pole-monopolar operation device, then completeness three-dimensional electrical method
Need to arrange m × n supply terminals, collection m × n × (m × n-1) individual measurement data in exploration (supply terminals itself is not measured).
Based on electrical prospecting principle of reciprocity, half, as m × n × (m × n-1)/2 can be reduced to above-mentioned field data collection amount
Data.
Completeness three-dimensional electrical prospecting data volume and workload are much larger than two-dimentional electrical prospecting, so as to cause in actual exploration
During need to put into substantial amounts of human and material resources and time, efficiency is low, high cost.In addition, in the wild in actual exploration process,
Due to three-dimensional electrical prospecting workload greatly, it is difficult to complete the workload of whole exploration area within one day, once need complete across day
Into, then be required to daily arrange and reclaim the electric power system and measuring system of whole exploration area, exist very big human and material resources and
Waste of time, also results in that its exploration efficiency is lower, and applicability is not strong.Be additionally, since completeness three-dimensional electrical prospecting for
The landform in ground observation area has high demands, if with a varied topography, vegetation development, to arrangement electrical prospecting electric power system and measuring system
Bring very big difficulty, it is possible to lead to not carry out complete three-dimensional electrical prospecting work.Therefore, completeness three-dimensional electrical method
Although exploration has obvious advantage in effect and precision, because its efficiency is too low, high cost was required landform
Height, so as to cause the method actual investigation and prospecting in the wild in seldom adopt.
Based on completeness three-dimensional electrical prospecting efficiency is very low, the shortcoming that applicability is not strong, current someone have studied cross
Intersect the three-dimensional electrical prospecting method that measuring electrode is arranged with Γ shapes.Its starting point is mainly powered by reducing certain supply terminals
When measured measurement point quantity, so as to realize reducing field work amount, reach the purpose for improving exploration efficiency.But right-angled intersection
The three-dimensional electrical prospecting method of shape measuring electrode and Γ shape measuring electrodes does not reduce supply terminals, the power supply of its three-dimensional electrical prospecting
Point remains a need for covering all measurement points in whole three-dimensional electrical prospecting area, and the physical points quantity of supply terminals is equal to the thing of measurement point
Reason point quantity, due to supply terminals quantity excessively, and current power supply technique uses timesharing branch and powers, and is only capable of every time to one
Supply terminals is powered, so as to the workload for causing electric power system cannot be reduced.Select when the method is powered only with certain supply terminals
Part measurement point collection electrical method data, but to complete data collection task when all supply terminals are powered, whole exploration area each
The physical points of measurement point are required to arrangement, when simply some supply terminals are powered, have part measurement point not gather electrical method data, not
It is reduced the physical points arrangement of measurement point.Therefore above-mentioned cruciform shape measuring electrode and Γ shapes measuring electrode three-dimensional electrical prospecting side
Method increases relative to the exploration efficiency of completeness three-dimensional electrical prospecting method, but reduces certain supply terminals confession by then passing through
Measurement point quantity measured when electric, therefore remain a need for carrying out all supply terminals of whole exploration area time sharing power supply, and need
The physical points of whole exploration area measurement point are arranged, therefore its exploration efficiency improves unobvious.
(wherein m is the grid of one measurement line of X-direction for m × n to assume certain three-dimensional electrical prospecting rectangle region grid number
Number, n is the grid number of one measurement line of Y-direction), electrical prospecting is carried out using one pole-monopolar operation device, then cruciform shape
Need to arrange (m × n-1) individual supply terminals, collection in measuring electrode three-dimensional electrical prospecting
Individual measurement data；Need also exist for arranging (m × n-1) individual supply terminals, collection in the three-dimensional electrical prospecting of Γ shapes measuring electrodeIndividual electrical method data.The data acquisition amount of both the above method is still very big, and efficiency is carried
It is high unobvious.
The content of the invention
The purpose of the present invention is based on exploration targets body characteristicses, the topography and geomorphology relief feature in electrical prospecting area, by cloth
The electrical prospecting supply terminals of groined type is put, conventional three-dimensional electrical prospecting supply terminals quantity is reduced, realizes that groined type three-dimensional electrical method is surveyed
Spy method, improves three-dimensional electrical prospecting efficiency and effect.
Because electrical prospecting electric power system is only capable of powering a supply terminals every time, at present cannot be by increasing many set power supplies
System is powered simultaneously, realizes reducing time and the cost of arrangement electrical prospecting electric power system.For conventional three-dimensional electrical prospecting
Speech, arranges the high labor intensive of electric power system, and efficiency is low, if therefore can realize the quantity of reduction supply terminals, three can be significantly improved
Dimension electrical prospecting efficiency.It is another because electric power system is to meet the quality requirement that electrical prospecting gathers signal, its supply lines and power supply
It is extremely complicated than electrical prospecting measuring system and heavy, therefore the quantity of supply terminals is reduced, adopt relative to the data for reducing measurement point
For collection amount, its exploration efficiency improvement becomes apparent from.
Because electrical prospecting measuring system can realize collection simultaneously, by multichannel electrical prospecting measuring system or multiple
Electrical prospecting measuring system, it is possible to achieve whole three-dimensional electrical prospecting data acquisition time and cost are reduced, so as to improve field
Exploration efficiency, reduces exploration cost；And due to not reducing the data acquisition amount of all measurement points of three-dimensional electrical prospecting, and can protect
The three-dimensional electrical prospecting effect of card.
The present invention is based on using the excellent advantage of two-dimentional electrical prospecting efficiency high, conventional three-dimensional electrical prospecting precision and effect
The exploration targets body characteristicses in electrical prospecting area, topography and geomorphology relief feature, by groined type three-dimensional electrical prospecting supply terminals arrangement
Rule, reduces three-dimensional electrical prospecting supply terminals quantity, implements the three-dimensional electrical prospecting to all measurement points in exploration area, realizes carrying
High three-dimensional electrical prospecting efficiency and the purpose for improving exploration effects.The present invention can overcome two-dimentional electrical prospecting effect poor, conventional
The low shortcoming of three-dimensional electrical prospecting efficiency, inherits excellent excellent of two-dimentional electrical prospecting efficiency high, conventional three-dimensional electrical prospecting effect again
Point, in exploration efficiency and exploration effects a more excellent equalization point is found between the two.
Groined type three-dimensional electrical prospecting method proposed by the present invention is concretely comprised the following steps：
(1) the early stage Geological Achievements of look-ahead analysis exploration area, infer the trend or main shaft square of main geologic anomalous body in area
To, the X-direction of groined type three-dimensional electrical prospecting is set approximately perpendicular to trend or major axes orientation, it is approximately parallel to trend or main shaft
The Y-direction of direction setting groined type three-dimensional electrical prospecting, wherein X-direction is mutually perpendicular to Y-direction, and is horizontal direction；
(2) required according to exploration, determine the X-direction of exploration area and the exploration length of Y-direction, and determine X side in exploration area
The numerical value of dot spacing d is measured to measurement dot spacing c and Y-direction, so that it is determined that the numerical value of exploration area mesh parameter a and b；
(3) based on the exploration targets body characteristicses of exploration area, topography and geomorphology relief feature, supplied using the electrical prospecting of groined type
Electric dot grid coordinate (x, y) and actual relative coordinate (XC,YC) computation rule, determine all power supplies of groined type three-dimensional electrical prospecting
Dot grid coordinate (x, y) and actual relative coordinate (XC,YC), and arrange supply terminals；
(4) based on the exploration targets body characteristicses of exploration area, topography and geomorphology relief feature, will according to exploration in whole exploration area
Ask and X-direction measures the numerical value that dot spacing c, Y-direction measure dot spacing d, mesh parameter a and b, arrange that complete three-dimensional electrical method is surveyed
Visit measurement point；
(5) each supply terminals on above-mentioned selected groined type three-dimensional electrical prospecting supply lines is powered respectively, using many
Passage electrical prospecting measuring system or multiple electrical prospecting measuring systems are to the groined type three-dimensional electrical prospecting in whole exploration area
Measurement point carries out electrical method data acquisition, gets the groined type three-dimensional electrical method of all measurement points in exploration area when each supply terminals is powered
Survey data；
(6) all electrical prospecting measurement data are integrated into groined type three-dimensional electrical prospecting data, carry out groined type three-dimensional
Electrical data processing, obtains the groined type three-dimensional electrical prospecting achievement of whole exploration area, so as to realize the well word of whole exploration area
Shape three-dimensional electrical prospecting.
The X-direction of near normal trend or major axes orientation setting groined type three-dimensional electrical prospecting wherein in step (1), closely
The concrete meaning of Y-direction of groined type three-dimensional electrical prospecting is set like parallel trend or major axes orientation as X-direction and main geologic
The trend or major axes orientation angle of anomalous body is tried one's best close or equal to 90 degree between 45～135 degree；Y-direction with mainly
The trend or major axes orientation angle of matter anomalous body is tried one's best close or equal to 0 degree between -45～45 degree；Wherein X-direction and Y
Direction is mutually perpendicular to, and is horizontal direction.
The numerical value of exploration area mesh parameter a and b is established rules then as follows really wherein in step (2)：If groined type three-dimensional electrical method
The long L rice of exploration rectangle region X-direction, the long M rice of Y-direction, X-direction measurement dot spacing is c rice in exploration area, and Y-direction measures dot spacing
For d rice, as origin, then mesh parameter a, b of whole exploration area X-direction and Y-direction was calculated the central point with whole exploration area
Journey is as follows：If
Groined type three-dimensional electrical prospecting supply terminals layout rules are divided into two kinds of situations wherein in step (3)：The first situation
For, groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length reach exploration targets body 2 times of predicted width and more than；
Second situation is that groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length is 2 times of the predicted width of exploration targets body
Below.
1st, the first situation, when groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length reaches exploration targets body
2 times of predicted width and during the above, the groined type three-dimensional electrical prospecting supply terminals layout rules of the present invention are as follows：
If the grid lower-left angular coordinate of the exploration rectangle region is (- a ,-b), upper right angular coordinate is (a, b), then groined type three
Mesh coordinate (x, the y) formula of dimension electrical prospecting supply terminals position is set to：
X, y, a, b, i, j wherein in formula (2) and (3) is integer.
The rule according to more than, draws when three-dimensional electrical prospecting rectangle region X-direction measurement line length is the pre- of exploration targets body
Survey 2 times of width and during the above, the central point with whole exploration area as origin, the reality of groined type three-dimensional electrical prospecting supply terminals position
Border relative coordinate (XC,YC) formula is as follows：
(XC,YC)=(x × c, y × d) (4)
X, y wherein in formula (4) is the result of calculation of formula (2) and (3).
2nd, second situation, when groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length is exploration targets body
When below 2 times of predicted width, the groined type three-dimensional electrical prospecting supply terminals layout rules of the present invention are as follows：
If exploration area landform limits more, groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length is exploration mesh
Then it is the boundary effect for further reducing exploration area boundary survey point below 2 times of the predicted width of standard type, improves whole exploration area
Surveying accuracy, all supply terminals take and are arranged with measurement point identical spacing distance in exploration area.
If the grid lower-left angular coordinate of the exploration area is (- a ,-b), upper right angular coordinate is (a, b), then the three-dimensional electricity of groined type
Mesh coordinate (x, the y) formula of method exploration supply terminals position is set to：
X, y, a, b wherein in formula (5) and (6) is integer.
The rule according to more than, draw when X-direction measure line length for less than 2 times of exploration targets body predicted width when, with
The central point of whole exploration area is origin, the actual relative coordinate (X of groined type three-dimensional electrical prospecting supply terminals positionC,YC) formula
It is as follows：
(XC,YC)=(x × c, y × d) (7)
X, y wherein in formula (7) is the result of calculation of formula (5) and (6).
The groined type three-dimensional electrical prospecting electric supply installation of the present invention adopts single-pole device, i.e., using in electrical prospecting meaning
Used as a fixed current electrode of three-dimensional electrical prospecting, another current electrode is then according to this to one infinity current electrode
The mobile current electrode of the groined type three-dimensional electrical prospecting supply terminals layout rules arrangement that invention is proposed.
The groined type three-dimensional electrical prospecting measurement apparatus of the present invention can be using two kinds of one pole and dipole measurement apparatus.One pole
Measurement apparatus are using an infinity measuring electrode in electrical prospecting meaning as a fixed three-dimensional electrical prospecting measurement
Electrode, another measuring electrode is the three-dimensional electrical prospecting measuring electrode moved in exploration area.Dipole measurement apparatus are then two
Electrical prospecting measuring electrode is the three-dimensional electrical prospecting measuring electrode moved in exploration area.
To reduce, exploration area boundary survey point data amount is few to be led groined type three-dimensional electrical prospecting method proposed by the present invention
The Boundary Effect problem of cause, proposes that the supply terminals of groined type three-dimensional electrical prospecting is arranged into beyond exploration area, surveys to increase
The data volume of exploratory area boundary survey point, so as to weaken the exploration area boundary survey point that boundary effect causes surveying accuracy reduce
Problem.
Groined type three-dimensional electrical prospecting method proposed by the present invention on straight line, has due to all supply terminals location arrangements
Beneficial to the change that a position is powered in actual investigation and prospecting, current supply line can be also saved, improve and change supply terminals position
Operating efficiency and save exploration cost.
Groined type three-dimensional electrical prospecting method proposed by the present invention, by choosing groined type three-dimensional electrical prospecting supply terminals,
Reach reduce supply terminals quantity, evade electrical prospecting electric power system cannot and meanwhile power and heaviness inferior position；Proposition is not reduced
The mode of three-dimensional electrical prospecting measurement point quantity, fully excavates the advantage that electrical prospecting measuring system can be gathered simultaneously, and retains
The excellent advantage of three-dimensional electrical prospecting effect, so as to realize the high efficiency and more excellent exploration effects of groined type three-dimensional electrical prospecting.Should
Method has the advantages that the high accuracy exploration effects of the high exploration efficiency of two dimension and three-dimensional simultaneously.
(wherein m is the grid of one exploration line of X-direction for m × n to assume certain three-dimensional electrical prospecting rectangle region grid number
Number, n is the grid number of one exploration line of Y-direction), explored using one pole-monopolar operation device, when three-dimensional electrical prospecting square
When the length of shape area X-direction exploration line reaches 2 times of the predicted width and the above of exploration targets body, then groined type three-dimensional electrical prospecting
Need arrangementIndividual supply terminals, altogether collection Individual three-dimensional electrical prospecting data.
Groined type three-dimensional electrical prospecting method proposed by the present invention is remote due to substantially reduce the number power supply points, its exploration efficiency
Far above conventional three-dimensional electrical prospecting, but three-dimensional electrical prospecting pattern is adopted, its exploration effects is better than two-dimentional electrical prospecting.
If exploration area is excessive, multidomain treat-ment is carried out to exploration area, each little subregion carries out exploration area according to mentioned above principle
Mesh design, and carry out the groined type three-dimensional electrical prospecting of each little subregion, obtain the groined type three-dimensional electrical method of all little subregions
Survey data, finally carries out the groined type three-dimensional electrical prospecting data processing of whole exploration area, obtains the well word of whole exploration area
Shape three-dimensional electrical prospecting achievement.
If geological condition is few known to exploration area, it is difficult to judge the trend or major axes orientation of main geologic anomalous body, then can be with
First initial analysis is carried out to exploration area, it is appropriate to increase X-direction measurement dot spacing c and Y-direction measurement dot spacing d, select suitable position
Put development groined type three-dimensional electrical prospecting and sound out sex work, after obtaining initial achievements, then reduction X-direction is carried out to main abnormal area
The ciphering type groined type three-dimensional electrical prospecting of measurement dot spacing c and Y-direction measurement dot spacing d, to realize exploration efficiency and to survey
Visit the optimization of effect.
Description of the drawings
Fig. 1 is the groined type three-dimensional electrical prospecting field arrangement schematic diagram of the present invention；
Fig. 2 is the two-dimentional electrical prospecting resistivity inversion achievement of No. 1 earth-electricity model one pole-one pole numerical simulation result；
Fig. 3 is the two-dimentional electrical prospecting resistivity inversion achievement of No. 1 earth-electricity model one pole-dipole numerical simulation result；
Fig. 4 be No. 1 earth-electricity model one pole-one pole numerical simulation result groined type three-dimensional electrical prospecting resistivity inversion into
Really；
Fig. 5 be No. 1 earth-electricity model one pole-dipole numerical simulation result groined type three-dimensional electrical prospecting resistivity inversion into
Really；
Fig. 6 be No. 1 earth-electricity model one pole-one pole numerical simulation result completeness three-dimensional electrical prospecting resistivity inversion into
Really；
Fig. 7 be No. 1 earth-electricity model one pole-dipole numerical simulation result completeness three-dimensional electrical prospecting resistivity inversion into
Really.
Specific embodiment
Below in conjunction with Fig. 1 and embodiment, the present invention will be further described, below illustrates to be surveyed using groined type three-dimensional electrical method
Visit one pole to power-one pole measurement apparatus.
The electric power system of this method and the completely compatible existing electrical exploration equipment at present of measuring system energy, and measuring system
Can be using multichannel electrical prospecting measuring system or many set electrical prospecting measuring systems.
Embodiment 1
In Fig. 11 is infinity current electrode, and 2 is infinity supply lines, and 3 is electrical prospecting emitter, and 4 survey for connection
The supply lines of exploratory area supply terminals, the cross symbol of 5 indications moves the supply terminals of power pole, the circle of 6 indications for electrical prospecting
Symbol is the measurement point of electrical prospecting measuring electrode, part supply terminals and measurement point location overlap.
Assume the long L=400 rice of three-dimensional electrical prospecting rectangle region X-direction, the long M=400 rice of Y-direction, X-direction survey in exploration area
Amount dot spacing c=40 rice, Y-direction measurement dot spacing d=40 rice, the predicted width of exploration targets body is 100 meters in exploration area, by
4 times of the predicted width that line length reaches exploration targets body is measured in three-dimensional electrical prospecting rectangle region X-direction, then according to formula (1)
Try to achieve a=5, b=5, then the grid lower-left angular coordinate of the exploration area be (- 5, -5), upper right angular coordinate for (5,5).
According to formula (2) and (3)
X, y, a, b, i, j wherein in formula (2) and (3) is integer.A, b numerical value is substituted into, the three-dimensional electricity of groined type is tried to achieve
Method explores the mesh coordinate (x, y) of supply terminals position
X, y, i, j wherein in formula (8) and (9) is integer.
According to obtained as above, the groined type three-dimensional electrical prospecting supply terminals position with whole exploration area central point as origin is drawn
Actual relative coordinate (the X for puttingC,YC) be：
(XC,YC)=(x × 40, y × 40) (10)
X, y wherein in formula (10) is the result of calculation of formula (8) and (9).
Result of calculation according to more than, groined type three-dimensional electrical prospecting one pole is powered the-concrete operations of one pole metering system
Step is as follows：
(1) the early stage Geological Achievements of exploration area are analyzed, the trend or major axes orientation of main geologic anomalous body in area is inferred, is hung down
The trend of straight main geologic anomalous body or the X-direction of major axes orientation setting groined type three-dimensional electrical prospecting, parallel main geologic is different
Often the trend or major axes orientation of body sets the Y-direction of groined type three-dimensional electrical prospecting, and wherein X is mutually perpendicular to Y-direction, and is
Horizontal direction；
(2) groined type three-dimensional electrical prospecting supply terminals mesh coordinate (x, y) asked for according to more than and actual relative coordinate
(XC,YC), and with reference to exploration area actual conditions, the confession of the mobile current electrode on exploration area and periphery reasonable Arrangement supply lines
Electricity point 5；
(3) according to electrical prospecting principle and require to select infinity supply terminals outside exploration area, and lay infinity and power
Electrode 1 and supply lines 2；
(4) select the supply terminals 5 of some groined type three-dimensional electrical prospecting movement current electrode (as shown in Figure 1
XA(-13,2)) lay current supply line 4 and mobile current electrode；
(5) electrical prospecting infinity measurement point is selected according to electrical prospecting principle and requirement outside exploration area, and lays nothing
Poor remote measuring electrode and wire；
(6) measurement point 6 that network style arranges all groined type three-dimensional electrical prospecting measuring electrodes is pressed in exploration area, and
Arrangement measuring electrode and wire；
(7) by the way that electrical prospecting emitter 3 is to infinity current electrode 1 and moves the supply terminals 5 of current electrode (such as Fig. 1
Shown XA(-13,2)) on electrode power supply, power supply current value is recorded, using multichannel or many set electrical prospecting measuring system notes
Electrical method number when the lower supply terminals of record is powered in exploration area between the measurement point 6 and infinity measuring electrode of each measuring electrode
According to, it is to be collected to finish, then notify that electric power system changes the position of the supply terminals 5 (XA as shown in Figure 1 of current electrode(-9,2)、
XA(-7,2)、XA(-5,2)、XA(-4,2)、……YA(2,5)、YA(2,7)、YA(2,9)、YA(2,13)Deng), repeat above-mentioned electrical method data acquisition
Process, until having gathered the electrical method data of all measurement points when each supply terminals is powered；
(8) get above-mentioned all groined type three-dimensional electrical prospecting supply terminals, the electrical method of all electrical prospecting measurement points to survey
After visiting data, the apparent resistivity of groined type three-dimensional electrical prospecting is asked for or regarding the electrical method parameter such as sharp electricity, by later data process,
Groined type three-dimensional electrical prospecting achievement required for getting.
Jing exploration efficiencies contrast experiment of the present invention, numerical simulation exploration effects contrast experiment, it can be found that the invention is proposed
Method be significantly improved in exploration efficiency and exploration effects, relevant information is as follows：
Exploration efficiency contrast experiment
Assume that two dimension, completeness three-dimensional, cruciform shape measuring electrode three are carried out in the stress and strain model exploration area to 11 × 11
Dimension, the three-dimensional electrical prospecting of the peacekeeping groined type of Γ shapes measuring electrode three, then the workload that every kind of method is carried out is to the such as institute of table 1
Show.
More than 1 kinds of electrical prospecting workload contrast table of table
From upper table, it is apparent that the electrical prospecting of groined type three-dimensional is evaded mainly by reducing supply terminals quantity as far as possible
The inferior position that cannot be powered simultaneously using multiple stage electric power system simultaneously, so as to improve the efficiency for laying supply terminals；By not reducing survey
The method of amount point, excavates the advantage that multichannel measuring system or multiple measuring systems can be measured simultaneously as far as possible, it is ensured that three-dimensional exploration
Exploration effects and improve operating efficiency.Although the measurement data amount of groined type three-dimensional electrical prospecting is close to two dimension electrical prospecting
Six times, but because the method only lays 64 supply terminals, and the method using three-dimensional electrical prospecting pattern, its exploration effects compares two
Dimension exploration results are truer.If the geological anomalous body of exploration area has multiple trends or major axes orientation, two-dimentional electrical prospecting needs
Exploration line is arranged in multiple directions, the quantity of its supply terminals will be multiplied than what upper table was counted, and its achievement reliability is not high.
Therefore groined type three-dimensional electrical prospecting realizes that efficiency high, effect are excellent by carrying out three-dimensional electrical prospecting with few supply terminals of trying one's best
Exploration.
Numerical simulation exploration effects contrast experiment
To contrast groined type three-dimensional electrical prospecting and two-dimentional electrical prospecting, and groined type three-dimensional electrical prospecting and completeness
The exploration effects of three-dimensional electrical prospecting, ad hoc fixed No. 1 earth-electricity model：300 × 300 meters of exploration area, X-direction measurement dot spacing c
Be 20 meters with Y-direction measurement dot spacing d, powered using one pole-electric-method exploration device of one pole measurement carry out numerical simulation and
Inverting.Shoulder-bed resistivity (SBR) is 1000 ohm meters, and low-resistance exception body resistivity is 10 ohm meters.Low-resistance anomalous body is a length of side
For 100 meters of cube, low-resistance anomalous body horizontal positioned, its plane coordinates scope is for (- 50, -50)～(50,50), top is buried
It is deep 20 meters, 100 meters of thickness.
This only carries out indoor numerical simulation and inverting contrast to X-direction.
To No. 1 earth-electricity model by numerical simulation obtain one pole power-one pole measurement and one pole power-dipole measure electrical method
Survey data, then to the data preparation that obtains for corresponding two dimension electrical prospecting data, groined type three-dimensional electrical prospecting data with
And completeness three-dimensional electrical prospecting data, and two-dimentional electrical prospecting inversion program and three-dimensional electrical prospecting inversion program is respectively adopted
Inverting is carried out, the inverting achievement of three kinds of methods, two kinds of devices is got.
From the inverting result map of three kinds of methods, two kinds of devices, (Fig. 2,3,4,5,6,7, the isopleth in figure is that resistivity is equivalent
Line) can draw, two-dimentional electrical prospecting inverting achievement is substantially accurate for low-resistance anomalous body morphological reaction, but for the electricity of country rock
There is obvious distortion phenomenon in the reaction of resistance rate.And groined type three-dimensional electrical prospecting inverting achievement is for low-resistance exception volume morphing
Better than two-dimentional electrical prospecting achievement, similar with completeness three-dimensional electrical prospecting achievement, the low-resistance abnormal morphology of acquisition is basic for reaction
Upper is a rectangle low-resistance anomalous body, similar with No. 1 earth-electricity model actual conditions；For the reaction of shoulder-bed resistivity (SBR) is than two-dimentional electrical method
Exploration results are truer, obvious distortion phenomenon do not occur, with No. 1 earth-electricity model goodness of fit apparently higher than two-dimentional electrical prospecting into
Really.
Two-dimentional electrical prospecting, groined type three-dimensional electrical prospecting and the three-dimensional electricity of completeness by this to No. 1 earth-electricity model
The method numerical simulation that carries out of exploration and inverting, it is found that groined type three-dimensional electrical prospecting achievement and the actual feelings of No. 1 earth-electricity model
The goodness of fit of condition is better than two-dimentional electrical prospecting achievement, illustrates that the former exploration effects are more excellent.Groined type three-dimensional electrical prospecting into
Fruit is similar with completeness three-dimensional electrical prospecting achievement, high with No. 1 earth-electricity model goodness of fit, but the former exploration efficiency is higher than the latter.
The exploration efficiency of various methods is contrasted by more than, as a result the contrast of numerical simulation exploration effects all demonstrates this
The groined type three-dimensional electrical prospecting method that invention is proposed is significantly improved in exploration efficiency and exploration effects.
Claims (4)
1. groined type three-dimensional electrical prospecting method, it is characterised in that：Based on the exploration targets body characteristicses in electrical prospecting area, landform ground
Looks relief feature, arranges the electrical prospecting supply terminals of groined type, using electrical prospecting emitter by the electrode of supply terminals to ground
Lower power supply, using electrical prospecting receiver the electric field signal of each measurement point in a plurality of exploration line is received simultaneously, asks for each confession
The apparent resistivity and parameters of electrical induction of all measurement points, realizes groined type three-dimensional electrical prospecting during electricity point power supply, concretely comprises the following steps：
(1) the early stage Geological Achievements of look-ahead analysis exploration area, infer the trend or major axes orientation of main geologic anomalous body in area, closely
Like the X-direction perpendicular to trend or major axes orientation setting groined type three-dimensional electrical prospecting, trend or major axes orientation are approximately parallel to
The Y-direction of setting groined type three-dimensional electrical prospecting, wherein X-direction is mutually perpendicular to Y-direction, and is horizontal direction；
(2) required according to exploration, determine the X-direction of exploration area and the exploration length of Y-direction, and determine that X-direction is surveyed in exploration area
Amount dot spacing c and Y-direction measure the numerical value of dot spacing d, so that it is determined that the numerical value of exploration area mesh parameter a and b；
(3) based on the exploration targets body characteristicses of exploration area, topography and geomorphology relief feature, using the electrical prospecting supply terminals of groined type
Mesh coordinate (x, y) and actual relative coordinate (XC,YC) computation rule, determine all supply terminals nets of groined type three-dimensional electrical prospecting
Lattice coordinate (x, y) and actual relative coordinate (XC,YC), and arrange supply terminals；
(4) based on the exploration targets body characteristicses of exploration area, topography and geomorphology relief feature, in whole exploration area according to exploration require and
The numerical value of X-direction measurement dot spacing c, Y-direction measurement dot spacing d, mesh parameter a and b, arranges that complete three-dimensional electrical prospecting is surveyed
Amount point；
(5) power respectively to each supply terminals on above-mentioned selected groined type three-dimensional electrical prospecting supply lines, using multichannel
Electrical prospecting measuring system or multiple electrical prospecting measuring systems are to the groined type three-dimensional electrical prospecting measurement in whole exploration area
Point carries out electrical method data acquisition, gets the groined type three-dimensional electrical prospecting of all measurement points in exploration area when each supply terminals is powered
Data；
(6) all electrical prospecting measurement data are integrated into groined type three-dimensional electrical prospecting data, carry out groined type three-dimensional electrical method
Data processing, obtains the groined type three-dimensional electrical prospecting achievement of whole exploration area, so as to realize the groined type three of whole exploration area
Dimension electrical prospecting.
2. groined type as claimed in claim 1 three-dimensional electrical prospecting method, it is characterised in that：Near normal in step (1)
In trend or the X-direction of major axes orientation setting groined type three-dimensional electrical prospecting, trend or major axes orientation setting well are approximately parallel to
The concrete meaning of the Y-direction of font three-dimensional electrical prospecting is the trend or major axes orientation angle of X-direction and main geologic anomalous body
Between 45～135 degree, and as far as possible close or equal to 90 degree；Y-direction is pressed from both sides with the trend or major axes orientation of main geologic anomalous body
Try one's best close or equal to 0 degree between -45～45 degree at angle；Wherein X-direction is mutually perpendicular to Y-direction, and is level side
To.
3. groined type as claimed in claim 1 or 2 three-dimensional electrical prospecting method, it is characterised in that：Exploration area net in step (2)
The numerical value of lattice parameter a and b is established rules then as follows really：
If the long L rice of three-dimensional electrical prospecting rectangle region X-direction, the long M rice of Y-direction, X-direction measures dot spacing for c rice in exploration area, Y
Orientation measurement dot spacing is d rice, the central point with whole exploration area as origin, then the grid of whole exploration area X-direction and Y-direction
Parameter a and b calculating process are as follows：
4. groined type as claimed in claim 3 three-dimensional electrical prospecting method, it is characterised in that：Groined type electricity in step (3)
Method exploration supply terminals mesh coordinate (x, y) and actual relative coordinate (XC,YC) computation rule is as follows：
A when) the topography and geomorphology relief feature in electrical prospecting area does not affect the arrangement of exploration line, groined type three-dimensional electrical prospecting rectangle
The length of area X-direction measurement line reach 2 times of the predicted width of exploration targets body and more than, then the three-dimensional electrical prospecting of groined type is supplied
Electric dot grid coordinate (x, y) and actual relative coordinate (XC,YC) computation rule is as follows：If the grid lower left corner of the exploration rectangle region
Coordinate is (- a ,-b), and upper right angular coordinate is (a, b), then the mesh coordinate (x, y) of groined type three-dimensional electrical prospecting supply terminals position
It is set to：
X, y, a, b, i, j wherein in formula (2) and (3) is integer；
The rule according to more than, draws when groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length is that exploration targets body is pre-
When surveying 2 times of width and the above, the central point with whole exploration area as origin, groined type three-dimensional electrical prospecting supply terminals position
Actual relative coordinate (XC,YC) formula is as follows：
(XC,YC)=(x × c, y × d) (4)
X, y wherein in formula (4) is the result of calculation of formula (2) and (3)；
B when) the topography and geomorphology relief feature in electrical prospecting area affects the arrangement of exploration line, groined type three-dimensional electrical prospecting square is caused
Shape area X-direction measurement line length at less than 2 times of predicted width of exploration targets body, then the three-dimensional electrical prospecting supply terminals of groined type
Mesh coordinate (x, y) and actual relative coordinate (XC,YC) computation rule is as follows：If the grid lower-left angular coordinate of the exploration area for (-
A ,-b), upper right angular coordinate is (a, b), then the mesh coordinate (x, y) of groined type three-dimensional electrical prospecting supply terminals position is set to：
Work as x |≤2a (5)
Work as y |≤2b (6)
X, y, a, b wherein in formula (5) and (6) is integer；
The rule according to more than, draws when groined type three-dimensional electrical prospecting rectangle region X-direction measurement line length is that exploration targets body is pre-
When surveying less than 2 times of width, the central point with whole exploration area as origin, the reality of the three-dimensional electrical prospecting supply terminals position of groined type
Border relative coordinate (XC,YC) formula is as follows：
(XC,YC)=(x × c, y × d) (7)
X, y wherein in formula (7) is the result of calculation of formula (5) and (6).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458757A (en) * | 2020-04-10 | 2020-07-28 | 陕西省煤田物探测绘有限公司 | Mine underground electric construction process |
| CN113687425A (en) * | 2021-07-28 | 2021-11-23 | 中南大学 | Electrical prospecting method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2434251C1 (en) * | 2010-04-30 | 2011-11-20 | Общество с ограниченной ответственностью "Научно-Техническая Компания ЗаВеТ-ГЕО" | Method for marine electrical exploration and device for realising said method |
| CN103837898A (en) * | 2014-02-24 | 2014-06-04 | 吉林大学 | High-density electrical method near-end dipole electromagnetic sounding method |
| CN103941293A (en) * | 2014-04-30 | 2014-07-23 | 武汉普瑞通科技有限公司 | Dynamic electricity observing system for natural electric field |
| CN103955000A (en) * | 2014-04-02 | 2014-07-30 | 中国冶金地质总局山东正元地质勘查院 | Three-dimensional electrical sounding method |
-
2016
- 2016-12-25 CN CN201611213032.5A patent/CN106646622B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2434251C1 (en) * | 2010-04-30 | 2011-11-20 | Общество с ограниченной ответственностью "Научно-Техническая Компания ЗаВеТ-ГЕО" | Method for marine electrical exploration and device for realising said method |
| CN103837898A (en) * | 2014-02-24 | 2014-06-04 | 吉林大学 | High-density electrical method near-end dipole electromagnetic sounding method |
| CN103955000A (en) * | 2014-04-02 | 2014-07-30 | 中国冶金地质总局山东正元地质勘查院 | Three-dimensional electrical sounding method |
| CN103941293A (en) * | 2014-04-30 | 2014-07-23 | 武汉普瑞通科技有限公司 | Dynamic electricity observing system for natural electric field |
Non-Patent Citations (2)
| Title |
|---|
| ZHENGYONG REN ET AL.: "3D direct current resistivity modeling with unstructured mesh by adaptive finite-element method", 《GEOPHYSICS》 * |
| 张力等: "三维全空间坑道直流聚焦超前探测数值模拟", 《物探与化探》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458757A (en) * | 2020-04-10 | 2020-07-28 | 陕西省煤田物探测绘有限公司 | Mine underground electric construction process |
| CN113687425A (en) * | 2021-07-28 | 2021-11-23 | 中南大学 | Electrical prospecting method and system |
| CN113687425B (en) * | 2021-07-28 | 2022-05-27 | 中南大学 | Electrical prospecting method and system |
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