CN106646624A - Asymmetric electrical method-based sounding method - Google Patents
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- CN106646624A CN106646624A CN201611213671.1A CN201611213671A CN106646624A CN 106646624 A CN106646624 A CN 106646624A CN 201611213671 A CN201611213671 A CN 201611213671A CN 106646624 A CN106646624 A CN 106646624A
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Abstract
An asymmetric electrical method-based sounding method is disclosed. A series of equal interval power supply points that are symmetric about only one fixed point are designed, underground power supply can be realized via two power supply points symmetric about the fixed point through an electrical method exploration transmitter, the electrical method exploration transmitter is used for simultaneously receiving electric field signals of all measurement points on an exploration line, and apparent resistivity and induced polarization parameters of each measurement point are obtained when each pair of symmetric power supply points are used for power supply. Via the method disclosed in the invention, workloads of power supply point arrangement can be greatly reduced, a plurality of sounding points can be subjected to sounding operation via a multichannel electrical method instrument or a plurality of electrical method instruments, and exploration efficiency of a two dimensional or three dimensional electrical method can be improved. In a three dimensional asymmetric electrical method sounding mode, exploration efficiency and exploration effects can be improved due to adoption of the three dimensional electrical method sounding mode.
Description
Technical field
The present invention relates to a kind of electrical method depth detecting method in Key words exploration geophysics field.
Background technology
There are symmetrical four-pole sounding, dipole-dipole depth measurement and middle terraced section bathymetry etc. in two-dimentional electrical prospecting at present.
Symmetrical four-pole sounding method arranges that approximate log is powered at equal intervals away from the two-dimentional electrical method of realization using each measurement point
Exploration depth measurement, the advantage of the method is that each measurement point arranges symmetrical powering pole relative to measurement point, and measuring electrode away from
Less than 1/3 polar distance of supplying power, realizing that measurement point measurement signal is presented level field trend from control, GEOLOGICAL INTERPRETATION is simple.But due to
Each measurement point is required to arrange a series of supply terminals, often arranges a series of supply terminals, is only capable of measuring single measurement point, therefore work
Efficiency is too low.Assume that a certain bar exploration line arranges n symmetrical quadrupole measurement point, according to the single measurement of symmetrical quadrupole shown in table 1
Point polar distance of supplying power and measuring electrode, then in order to the depth measurement for completing all measurement points works, need arrangement 16 × 2 away from parameter list arrangement
× n supply terminals, workload is excessive, therefore in actual investigation and prospecting, the quantity of symmetrical quadrupole measurement point can be as far as possible reduced, to subtract
Few exploration cost, but the reduction of exploration effects can be caused.
The single measurement point polar distance of supplying power of the symmetrical quadrupole of table 1 and measuring electrode are away from parameter list
Dipole-dipole bathymetry can realize the high efficiency of electrical method depth measurement using short polar distance of supplying power and measurement pole span.For reality
The depth measurement in existing deep, using interval coefficient is increased, with the increase of interval coefficient, and electric field signal is decayed quickly, in order to realize
Bigger depth of exploration, is only realized by increasing the power of electric power system, and will so cause electric power system heavy, is reduced
Exploration efficiency.
The pattern of middle terraced section bathymetry terraced section in borrowing, by the size of terraced polar distance of supplying power in change depth measurement is realized
Purpose, depth measurement work of the method for supply terminals beyond measurement point range adopt in terraced depth measurement pattern, can realize exploring and imitate
The raising of rate, but depth measurement work of the method for supply terminals in the range of measurement point adopts the symmetrical quadrupole of little pole span to each
The electric signal of measurement point is measured, so as to result in the need for carrying out the electrical prospecting of two methods to each measurement point, although energy
The depth measurement workload of big pole span is reduced, but increased the workload of little pole span.
The content of the invention
The purpose of the present invention is, only with respect to a series of point-symmetric equidistant supply terminals of a certain fixation, to utilize by design
Electrical prospecting emitter by powering to underground relative to point-symmetric two supply terminals of the fixation, using electrical prospecting receiver
The electric field signal in all measurement points of exploration line is received simultaneously, asks for regarding for each measurement point when every a pair of symmetrical powerings point is powered
The parameters such as resistivity, sharp electricity, reduce the number of times that moves of electrical method depth measurement supply terminals, realize carrying out asymmetric electrical method to all measurement points
Depth measurement, improves electrical prospecting efficiency and exploration effects.
Based on the deficiency of the method such as symmetrical quadrupole and middle terraced section depth measurement, asymmetric electrical method depth measurement side proposed by the present invention
Method, by choose on certain survey line development in need measurement point centre position, arrange and a series of be symmetrical in the middle of this
The equidistant symmetrical powering point of position, while carrying out the asymmetric electrical method depth measurement exploration of all measurement points to exploration line.
The method is concretely comprised the following steps：
(1) the early stage Geological Achievements of look-ahead analysis exploration area, infer the distribution situation of main geologic anomalous body in area, setting
The exploration line direction of asymmetric electrical method depth measurement；
(2) required according to exploration, determine the length and quantity of exploration line, and according to corresponding spacing, determine that exploration area is joined
Number (m, n, t), wherein m is the measurement point quantity of every exploration line, and n is supply terminals quantity, and t is exploration line quantity；
(3) based on the exploration targets body characteristicses of exploration area, topography and geomorphology relief feature, using the survey of asymmetric electrical method depth measurement
Amount point and point coordinates layout rules of powering, determine the coordinate of all measurement points and supply terminals, and arrange measurement point and supply terminals；
(4) select every time to be powered using electrical prospecting emitter relative to two symmetrical supply terminals of the origin of coordinates,
Electrical method data measurement points in all exploration lines carry out electrical method data acquisition using electrical prospecting receiver, get power supply every time
When all electrical method data measurement points electrical method data；
(5) and then position relative to two symmetrical supply terminals of the origin of coordinates is changed, it is ensured that two supply terminals still phase
The relation symmetrical for the origin of coordinates, repeats power supply and data acquisition session above, gets the Asymmetric Electric of whole exploration area
Method depth measurement data；
(6) above-mentioned data are combined as Asymmetric Electric method depth measurement data, using electrical prospecting data process and interpretation software,
Follow-up data process and explanation are carried out, the asymmetric electrical method depth measurement achievement of whole exploration area is obtained.
The rule of exploration area parameter (m, n, t) is determined in the step of asymmetric electrical method depth detecting method proposed by the present invention (2)
It is divided into two kinds of situations：The first situation is, two-dimentional asymmetric electrical method depth measurement；Second situation be, three-dimensional asymmetric electrical method depth measurement.
A) if carrying out two-dimentional asymmetric electrical method depth measurement, the asymmetric electrical method depth measurement exploration line direction of exploration area two dimension is set
For X-direction, wherein X-direction is horizontal direction；Exploration line length be L, each measurement point spacing distance be a, maximum depth of exploration
For h, then measurement point quantity m of the exploration line is
Power supply
Putting quantity n is
Exploration
Line number amount t=1.
B) if carrying out three-dimensional asymmetric electrical prospecting, exploration area three-dimensional asymmetric electrical prospecting line direction is set as X-direction,
X-direction exploration line length is L, and the total spacing of Y-direction exploration line is Q, and wherein X-direction is vertical with Y-direction, and is horizontal direction；
At intervals of a, exploration distance between centers of tracks is b to each measurement point, and maximum depth of exploration is h, then measurement point quantity m of every exploration line is
Power supply
Putting quantity n is：
Entirely exploration area exploration line quantity t is：
In the step of asymmetric electrical method depth detecting method proposed by the present invention (3) using asymmetric electrical method depth measurement measurement point and
Power supply point coordinates layout rules are also classified into two kinds of situations：The first situation is, two-dimentional asymmetric electrical method depth measurement；Second situation
For three-dimensional asymmetric electrical method depth measurement.
A) if carrying out two-dimentional asymmetric electrical method depth detecting method, its measurement point coordinates xpiPower point coordinates with A poles supply terminals
xAi, B poles power point coordinates xBiLayout rules are as follows：
The centre position for choosing the exploration line is the origin of coordinates, then all electrical method DATA REASONINGs of two-dimentional asymmetric electrical method depth measurement
The coordinate x of pointpiFor：
The coordinate of all two-dimentional asymmetric electrical method depth measurement supply terminals of the exploration line is divided into two kinds of situations, sets X negative direction cloth
A poles supply terminals is put, X positive directions arrange B poles supply terminals, then the coordinate x of A poles supply terminalsAiFor：
The coordinate x of B poles supply terminalsBiFor：
B) if carrying out three-dimensional asymmetric electrical method depth detecting method, its measurement point coordinates (xpi,ypj) and A poles supply terminals power
Point coordinates (xAi,yAi), B poles power point coordinates (xBi,yBi) layout rules are as follows：
The central point for choosing the exploration rectangle region is the origin of coordinates, then all electrical method data of three-dimensional asymmetric electrical method depth measurement are surveyed
Coordinate (the x of amount pointpi,ypj) be：
The coordinate of all three-dimensional asymmetric electrical method depth measurement supply terminals in the exploration area is divided into two kinds of situations, sets X negative directions as A
Pole supply terminals, X positive directions are B poles supply terminals, then coordinate (the x of A poles supply terminalsAi,yAi) be：
Then coordinate (the x of B poles supply terminalsBi,yBi) be：
Electrical method data measurement unit in the method can be carried out using one pole or dipole measurement apparatus, such that it is able to segment
For：Two dimension or three-dimensional asymmetric electrical method depth measurement one pole or dipole measurement apparatus.
The method that the invention is proposed only needs arrangement a series of relative to certain point-symmetric supply terminals of fixation, dot spacing of powering
Equal to measurement dot spacing, power to a pair symmetrical current electrodes every time, and while gathering all measurements in all exploration lines
The electric field signal of point, because supply terminals is only with respect to certain fixation point symmetry, differing to be set to for measurement point is arranged symmetrically,
Therefore this method is named as asymmetric electrical method depth detecting method.
Because above-mentioned asymmetric electrical method depth detecting method relative to each as symmetrical four-pole sounding method arrangement is a series of without the need for surveying
Point-symmetric supply terminals is measured, the middle terraced depth measurement not only arranged outside measurement point without terraced section bathymetry in picture arrangement measurement point model again
Interior little pole span symmetrical four-pole sounding is enclosed, therefore method proposed by the present invention substantially reduce the number the workload of arrangement supply terminals, so as to
Improve two dimension or three-dimensional electrical prospecting efficiency.In three-dimensional asymmetric electrical method depth measurement pattern, due to using three-dimensional electrical method depth measurement
Pattern, had both improve exploration efficiency, and exploration effects can be improved again.
Description of the drawings
Fig. 1 is two-dimentional asymmetric electrical prospecting one pole measurement apparatus figure；
Fig. 2 is three-dimensional asymmetric electrical prospecting one pole measurement apparatus figure；
Fig. 3 is two-dimentional asymmetric electrical prospecting dipole measurement apparatus figure；
Fig. 4 is three-dimensional asymmetric electrical prospecting dipole measurement apparatus figure.
Specific embodiment
Below in conjunction with Fig. 1, Fig. 2 and embodiment, the present invention will be further described.
The electric power system of this method and the completely compatible existing electrical exploration equipment at present of electrical method data measurin system energy, and
Electrical method data measurin system can be using multichannel electrical method data measurin system or many set electrical method data measurin systems.
Embodiment 1
In figure 1 is electrical prospecting emitter, and 2 is A poles supply lines, and 3 is B poles supply lines, and the circle symbol of 4 indications is electricity
Field signal measuring electrode point, the hollow cross symbol of 5 indications is A poles supply terminals, and the solid cruciform symbol of 6 indications is B poles
Supply terminals, 7 is electric field signal measure traverse line, and 8 is electrical prospecting receiver, and 9 are electric field signal infinity measure traverse line and electrode,
A and dotted arrow represent that A poles supply terminals runs extreme direction, and B and dotted arrow represent that B poles supply terminals runs extreme direction.
The specific embodiment of this method is divided into two-dimentional asymmetric electrical method depth measurement one pole measurement apparatus and three-dimensional asymmetric electricity
Method depth measurement one pole two kinds of situations of measurement apparatus are described separately.
1st, the first situation, two-dimentional asymmetric electrical method depth measurement one pole measurement apparatus embodiment
1) required based on exploration, selecting certain needs to carry out the exploration line X-direction and length L, measurement point of two-dimentional electrical prospecting
Spacing distance a, maximum depth of exploration h, according to formula (1)
It is determined that two-dimentional asymmetric electrical method depth measurement measurement point quantity m；
2) according to formula (2)
Determine all supply terminals quantity n of the asymmetric electrical prospecting of exploration line two dimension；
3) according to formula (3)
Determine the coordinate x of all measurement points of the asymmetric electrical prospecting of exploration line two dimensionpi；
4) according to formula (4) and (5)
Determine the coordinate x of all A poles supply terminals of the asymmetric electrical prospecting of exploration line two dimensionAiWith the coordinate of B poles supply terminals
xBiCoordinate；
5) all parameters asked for according to more than, determine in the wild and arrange supply terminals, measurement point in exploration line；
6) electrical prospecting emitter 1 is arranged according to Fig. 1；A poles supply lines 2 is arranged, and with A poles supply terminals 5 (such as Fig. 1
Shown A1) connection；B poles supply lines 3 is arranged, and is connected with B poles supply terminals 6 (B1 as shown in Figure 1)；By 7, wire
All measuring electrode points 4 are connected with electrical prospecting receiver 8；Arrangement electric field signal collection infinity measure traverse line and electrode 9, and
It is connected with electrical prospecting receiver 8；
7) electrical prospecting emitter 1 is (as shown in Figure 1 by A poles supply terminals 5 (A1 as shown in Figure 1) and B poles supply terminals 6
B1) two electrode power supplies；
8) all measuring electrode points 4 of electrical prospecting receiver 8 pairs carry out electrical method DATA REASONING, obtain corresponding asymmetric two
Dimension electrical prospecting data；
9) mobile A poles supply lines 2 and A poles supply terminals 5,6 two supply terminals of B poles supply lines 3 and B poles supply terminals and electric wire are arrived
Other positions (as shown in Figure 1 A2 and B2), repeat the 8th step, until A poles supply terminals 5 and 6 two supply terminals of B poles supply terminals
Position reach An/2 and Bn/2 supply terminals position, so as to obtain the two-dimentional asymmetric electrical method depth measurement data of whole piece exploration line；
10) above-mentioned all two-dimentional asymmetric electrical method depth measurement data are carried out with data process and interpretation, whole piece exploration line is obtained
Two-dimentional asymmetric electrical method depth measurement achievement.
If the L=400 rice in above-mentioned specific embodiment, a=40 rice, h=300 rice, then measurement point m=11, powers
Points n=40, it may be determined that two-dimentional asymmetric electrical method depth measurement A, B power pole coordinate parameter table and two-dimentional asymmetric electrical method depth measurement
Measuring electrode coordinate parameters table is respectively as shown in table 2 below and 3.To complete the depth measurement work of 11 measurement points of above-mentioned exploration line,
Need to lay 40 (20 pairs) symmetrical powering points, farthest AB length is 1560 meters.
Table 2 two-dimentional asymmetric electrical method depth measurement A, B power pole coordinate parameter table
The two-dimentional asymmetric electrical method depth measurement measuring electrode coordinate parameters table of table 3
| Sequence number | Measuring electrode coordinate |
| 1 | -200 |
| 2 | -160 |
| 3 | -120 |
| 4 | -80 |
| 5 | -40 |
| 6 | 0 |
| 7 | 40 |
| 8 | 80 |
| 9 | 120 |
| 10 | 160 |
| 11 | 200 |
2nd, second situation, three-dimensional asymmetric electrical method depth measurement one pole measurement apparatus embodiment：
1) required based on exploration, select exploration area X, Y-direction and corresponding length L, Q for needing to carry out three-dimensional electrical prospecting；
2) the measurement point spacing distance a and exploration distance between centers of tracks b, maximum depth of exploration h of exploration area are determined, according to formula (6)
Determine measurement point quantity m of three-dimensional asymmetric electrical method every exploration line of depth measurement；
3) according to formula (7)
Determine three-dimensional asymmetric electrical method depth measurement supply terminals quantity n；
4) according to formula (8)
Determine three-dimensional asymmetric electrical method depth measurement exploration line quantity t；
5) according to formula (9)
Determine the coordinate (x of all measurement points of the exploration area three-dimensional asymmetric electrical method depth measurementpi,ypj)；
6) according to formula (10) and (11)
Determine the coordinate (x of the A poles supply terminals of all three-dimensional asymmetric electrical method depth measurements in the exploration areaAi,yAi) and B poles power
Coordinate (the x of pointBi,yBi) coordinate；
7) all parameters asked for according to more than, in exploration area supply terminals, measurement point are determined and arrange；
8) electrical prospecting emitter 1 is arranged according to Fig. 2；A poles supply lines 2 is arranged, and with A poles supply terminals 5 (such as Fig. 2
Shown A1) connection；B poles supply lines 3 is arranged, and is connected with B poles supply terminals 6 (B1 as shown in Figure 2)；By 7, wire
All measuring electrode points 4 are connected with electrical prospecting receiver 8；Arrangement electric field signal collection infinity measure traverse line and electrode 9, and
It is connected with electrical prospecting receiver 8；
9) electrical prospecting emitter 1 is (as shown in Figure 2 by A poles supply terminals 5 (A1 as shown in Figure 2) and B poles supply terminals 6
B1) two electrode power supplies；
10) all measuring electrode points 4 of electrical prospecting receiver 8 pairs carry out electrical method DATA REASONING, obtain corresponding asymmetric
Three-dimensional electrical prospecting data；
11) mobile A poles supply lines 2 and A poles supply terminals 5,6 two supply terminals of B poles supply lines 3 and B poles supply terminals and electric wire
To other positions (A as shown in Figure 22And B2), repeat the 8th step, until A poles supply terminals 5 and 6 two supply terminals of B poles supply terminals
Position reach An/2And Bn/2Supply terminals position, so as to obtain the three-dimensional asymmetric electrical method depth measurement data of whole exploration area；
12) above-mentioned all three-dimensional asymmetric electrical method depth measurement data are carried out with data process and interpretation, whole exploration area is obtained
Three-dimensional asymmetric electrical method depth measurement achievement.
Exploration efficiency contrast experiment
To contrast the exploration efficiency of two-dimentional asymmetric electrical method depth measurement and symmetrical four-pole sounding, it is assumed that certain exploration area has long 400
The exploration line of rice needs to carry out two-dimentional electrical method depth measurement, measures 40 meters of dot spacing, and maximum depth of exploration is 300 meters.Will according to more than
Ask, having 11 measurement points needs to carry out two-dimentional electrical method depth measurement.
If 11 measurement points are carried out with symmetrical four-pole soundings, the symmetrical quadrupole measurement point polar distance of supplying power according to table 1 and
Away from parameter list, each measurement point needs arrangement 15 pairs relative to each point-symmetric supply terminals of measurement, 11 measurements to measuring electrode
Point needs to arrange 165 pairs of supply terminals altogether.
And if to the two-dimentional asymmetric electrical method depth measurement of 11 measurement points developments, the two-dimentional asymmetric electrical method according to table 2
Depth measurement A, B power pole coordinate parameter table and the two-dimentional asymmetric electrical method depth measurement measuring electrode coordinate parameters table shown in table 3 is provided
Parameter, 11 measurement points only lay 20 and (40) are supplied with regard to point-symmetric two-dimentional asymmetric electrical method depth measurement in the middle of exploration line altogether
It is electric, can just complete the two-dimentional asymmetric electrical method depth measurement of 11 measurement points.
Contrast both the above method lays the quantity of supply terminals, it can be found that supply terminals is laid in two-dimentional asymmetric electrical method depth measurement
Workload be considerably less than symmetrical quadrupole electrical method depth measurement, therefore the former exploration efficiency is higher than the latter.
Because electrical method data acquisition is carried out in two-dimentional asymmetric electrical method depth measurement to 11 measurement points simultaneously, therefore can adopt and lead to more
Road or many set electrical method receivers, realize carrying out data acquisition to multiple measurement points simultaneously, to improve overall exploration efficiency.And it is right
Claim quadrupole depth measurement to be only capable of carrying out electrical method data acquisition to a measurement point every time, then cannot be received using multichannel or many set electrical methods
Machine, so as to its exploration efficiency is low.
If exploration area has a plurality of parallel exploration line to need to carry out two-dimentional electrical method depth measurement, if the survey of three-dimensional asymmetric electrical method can be carried out
Deep, then the raising of its exploration efficiency can become apparent from for symmetrical quadrupole electrical method depth measurement, and due to using three-dimensional electricity
Method is explored, and its exploration effects is better than the two-dimentional achievement of symmetrical quadrupole electrical method depth measurement.
Claims (3)
1. asymmetric electrical method depth detecting method, it is characterised in that：It is point-symmetric a series of etc. only with respect to a certain fixation by design
Spacing supply terminals, using electrical prospecting emitter by powering to underground relative to point-symmetric two supply terminals of the fixation, adopts
The electric field signal in all measurement points of exploration line is received simultaneously with electrical prospecting receiver, is asked for every a pair of symmetrical powerings point and is powered
When each measurement point apparent resistivity and parameters of electrical induction, realize carrying out asymmetric electrical method depth measurement to all measurement points simultaneously；Specifically
Step is：
(1) the early stage Geological Achievements of look-ahead analysis exploration area, infer the distribution situation of main geologic anomalous body in area, and it is non-right to set
Claim the exploration line direction of electrical method depth measurement；
(2) required according to exploration, determine the length and quantity of exploration line, and according to corresponding spacing, determine exploration area parameter (m,
n、t)；Wherein, m is the measurement point quantity of every exploration line, and n is supply terminals quantity, and t is exploration line quantity；
(3) based on the exploration targets body characteristicses of exploration area, topography and geomorphology relief feature, using the measurement point of asymmetric electrical method depth measurement
With power supply point coordinates layout rules, the coordinate of all measurement points and supply terminals is determined, and arrange measurement point and supply terminals；
(4) select every time to be powered using electrical prospecting emitter relative to two symmetrical supply terminals of the origin of coordinates, own
Electrical method data measurement points in exploration line carry out electrical method data acquisition using electrical prospecting receiver, get when powering every time
The electrical method data of all electrical method data measurement points；
(5) then change relative to two symmetrical supply terminals of the origin of coordinates position, it is ensured that two supply terminals still in relation to
The origin of coordinates is symmetrical, repeats power supply and data acquisition above, gets the asymmetric electrical method depth measurement data of whole exploration area；
(6) above-mentioned data are combined as Asymmetric Electric method depth measurement data, using electrical prospecting data process and interpretation software, are carried out
Follow-up data process and analysis, obtain the asymmetric electrical method depth measurement achievement of whole exploration area.
2. asymmetric electrical method depth detecting method as claimed in claim 1, it is characterised in that：The step of asymmetric electrical method depth detecting method
(2) rule of determination exploration area parameter (m, n, t) is in：
When A) carrying out two-dimentional asymmetric electrical method depth measurement, then the asymmetric electrical method depth measurement exploration line direction of exploration area two dimension is set as X
Direction, wherein X-direction are horizontal direction；Exploration line length is L, and each measurement point spacing distance is a, and maximum depth of exploration is h,
Then measurement point quantity m of the exploration line is
Supply terminals quantity n is
Exploration line quantity t=1；
When B) carrying out three-dimensional asymmetric electrical prospecting, then exploration area three-dimensional asymmetric electrical prospecting line direction is set as X-direction, X side
It is L to exploration line length, the total spacing of Y-direction exploration line is Q, and wherein X-direction is vertical with Y-direction, and is horizontal direction；Each
At intervals of a, exploration distance between centers of tracks is b to measurement point, and maximum depth of exploration is h, then measurement point quantity m of every exploration line of X-direction is
Supply terminals quantity n is：
Entirely exploration area exploration line quantity t is：
3. asymmetric electrical method depth detecting method as claimed in claim 1 or 2, it is characterised in that：Asymmetric electrical method depth detecting method
Using the measurement point and power supply point coordinates layout rules of asymmetric electrical method depth measurement in step (3)：
When A) carrying out two-dimentional asymmetric electrical method depth detecting method, then it measures point coordinates xpiPower point coordinates x with A poles supply terminalsAi、B
Pole powers point coordinates xBiLayout rules are as follows：The centre position for choosing the exploration line is the origin of coordinates, then two-dimentional asymmetric electrical method
The coordinate x of all electrical method data measurement points of depth measurementpiFor：
The wherein integer (6) of i ∈ [1, m]
The coordinate of all two-dimentional asymmetric electrical method depth measurement supply terminals of the exploration line is divided into two kinds of situations, setting X negative direction arrangement A poles
Supply terminals, X positive directions arrange B poles supply terminals, then the coordinate x of A poles supply terminalsAiFor：
The wherein integer (7) of i ∈ [1, n/2]
The coordinate x of B poles supply terminalsBiFor：
The wherein integer (8) of i ∈ [1, n/2]
When B) carrying out three-dimensional asymmetric electrical method depth detecting method, then it measures point coordinates (xpi,ypj) and A poles supply terminals power point coordinates
(xAi,yAi), B poles power point coordinates (xBi,yBi) layout rules are as follows：The center for choosing the exploration rectangle region is that coordinate is former
Point, the coordinate (x of all electrical method data measurement points of three-dimensional asymmetric electrical method depth measurementpi,ypj) be：
The wherein integer of i ∈ [1, m], the integer (9) of j ∈ [1, t]
The coordinate of all three-dimensional asymmetric electrical method depth measurement supply terminals in the exploration area is divided into two kinds of situations, sets X negative directions and supplies as A poles
Electric, X positive directions are B poles supply terminals, then coordinate (the x of A poles supply terminalsAi,yAi) be：
The wherein integer (10) of i ∈ [1, n/2]
Then coordinate (the x of B poles supply terminalsBi,yBi) be：
The wherein integer (11) of i ∈ [1, n/2].
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| CN111239835A (en) * | 2020-01-29 | 2020-06-05 | 中南大学 | Orthogonal conduction electrical sounding method suitable for long and narrow landforms |
| CN111427092A (en) * | 2020-05-13 | 2020-07-17 | 天津华北地质勘查总院 | Method for improving geophysical prospecting electrical deep field construction efficiency |
| CN111856589A (en) * | 2020-06-18 | 2020-10-30 | 山东大学 | Three-dimensional imaging method and system for ground surface comprehensive geophysical prospecting |
| CN113093291A (en) * | 2021-04-06 | 2021-07-09 | 湖南省地质调查院(湖南省地质矿产勘查开发局油气资源调查中心) | Differential electrical prospecting method for detecting leakage of pollutants |
| CN114152989A (en) * | 2021-12-01 | 2022-03-08 | 中南大学 | Method for calculating coordinates of pseudo-section diagram of two-dimensional asymmetric quadrupole electrical method |
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