CN107085240A - A kind of side slope magnetic fluid detection system and method - Google Patents
A kind of side slope magnetic fluid detection system and method Download PDFInfo
- Publication number
- CN107085240A CN107085240A CN201710202864.5A CN201710202864A CN107085240A CN 107085240 A CN107085240 A CN 107085240A CN 201710202864 A CN201710202864 A CN 201710202864A CN 107085240 A CN107085240 A CN 107085240A
- Authority
- CN
- China
- Prior art keywords
- spectrum
- detection
- data
- electrode
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The present invention provides a kind of side slope magnetic fluid detection system, and the electric field data and magnetic field data of present position point are obtained by detection instrument；Data acquisition equipment collects the electric field data and magnetic field data for the present position point that whole detection instruments are obtained, and the electric field data and magnetic field data of the present position point obtained according to whole detection instruments generate time series data；Data processing equipment calculates the analysis of spectrum sequence for obtaining each detection channels according to time series data；Calculate spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels；Calculate tensor impedance and the son that inclines；Obtain the Carnot model and phase information of each detection instrument；According to analysis of spectrum sequence, spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels, the Carnot model and phase information of tensor impedance, incline son and each detection instrument, the underground data of side slope test zone is generated, fast and effectively Underground water aggregation situation is realized.
Description
Technical field
The present invention relates to groundwater exploration technical field, more particularly to a kind of side slope magnetic fluid detection system and method.
Background technology
Slope project is one of major project of Highway Construction in Mountainous Area, and slope monitoring and analysis are side slope prospectings, commented
Valency slope stability, adjustment construction, the important means for ensureing construction safety.
At present, during the Slope Construction of China, some monitoring instruments can be set, for monitoring the shape of side slope in side slope
State.Side slope for having built completion, has the groundwater seep artificially set and is used for side slope with the underground water of inner region
It is externally discharged, it is to avoid because the accumulation of underground water causes side slope water damage.The flow direction of underground water and remittance after side slope is completed
Collection will not changed with the wish of people, and under the changeable environment of landform, the monitoring instrument in side slope can not accurately be anti-
The flow direction and flow of underground water in side slope should be gone out.Therefore one kind is needed more for some monitorings for the side slope of underground water seepage occur
Added with effect, detection method accurate, easy to operate.
The content of the invention
The present invention provides a kind of side slope magnetic fluid detection system and method, for realizing that fast and effectively Underground water gathers
Collection situation.
One side of the invention provides a kind of side slope magnetic fluid detection system, including：At least one set of detection channels, data
Collecting device, data processing equipment；
Wherein, detection channels described in every group include at least two detection instruments, and the detection instrument includes electrode sensor
And Magnetic Sensor；The distance between detection instrument described in each two is less than or equal to the first distance threshold；
The detection instrument, electric field data and magnetic field data for obtaining present position point；
The data acquisition equipment, the electric field number for collecting all present position points that the detection instrument is obtained
According to and magnetic field data, and given birth to according to the electric field data and magnetic field data of all present position points that the detection instruments are obtained
Into time series data；
The data processing equipment, the spectrum of each detection channels is obtained for being calculated according to the time series data
Analytical sequence；Calculate spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels；Calculate tensor
Impedance and the son that inclines；Obtain the Carnot model and phase information of each detection instrument；According to the analysis of spectrum sequence, often
The spectrum demarcation of the analysis of spectrum sequence of the individual detection channels, auto-power spectrum and crosspower spectrum, the tensor impedance, it is described incline son with
And the Carnot model and phase information of each detection instrument, generate the underground data of side slope test zone.
It is preferred that the detection instrument is included：Four electrodes, three Magnetic Sensors and detecting devices, described in three
Magnetic Sensor is connected by cable with the detecting devices, and four electrodes are connected by cable with the detecting devices, and three
The individual Magnetic Sensor pairwise orthogonal is arranged in the ground of present position point, and the distance between Magnetic Sensor described in each two is big
In or equal to second distance threshold value；Wherein, the first Magnetic Sensor in three Magnetic Sensors points to direct north；Three institutes
The second Magnetic Sensor stated in Magnetic Sensor points to due east direction；The 3rd Magnetic Sensor in three Magnetic Sensors points to ground
The heart；
First electrode and second electrode in four electrodes are set along east-west direction, the first electrode and described
Two electrodes are used for the electric field component of east-west direction；The 3rd electrode and the 4th electrode in four electrodes are set along North and South direction
Put, the 3rd electrode and the 4th electrode are used for the electric field component of North and South direction.
It is preferred that the detection instrument is included：The detection instrument is included：Four electrodes, two Magnetic Sensors and
Detecting devices, two Magnetic Sensors are connected by cable with the detecting devices, and four electrodes pass through cable and institute
The first Magnetic Sensor stated in detecting devices connection, two Magnetic Sensors points to direct north, two Magnetic Sensors
In the second Magnetic Sensor point to due east direction；The distance between first Magnetic Sensor and second Magnetic Sensor are more than
Or equal to second distance threshold value；
First electrode and second electrode in four electrodes are set along east-west direction, the first electrode and described
Two electrodes are used for the electric field component of east-west direction；The 3rd electrode and the 4th electrode in four electrodes are set along North and South direction
Put, the 3rd electrode and the 4th electrode are used for the electric field component of North and South direction.
It is preferred that the first electrode and the second electrode at intervals of 50m；3rd electrode and the 4th electricity
Pole at intervals of 100m.
It is preferred that the second distance threshold value is 5m.
It is preferred that the first distance threshold 20m.
Second aspect of the present invention provides a kind of side slope magnetic fluid detection method, including：
Obtain the electric field data and magnetic field data of present position point；
The electric field data and magnetic field data of all present position points that the detection instrument is obtained are collected, and according to complete
Electric field data and magnetic field data the generation time series data for the present position point that detection instrument described in portion is obtained；
The analysis of spectrum sequence for obtaining each detection channels is calculated according to the time series data；Calculate each described
Spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of detection channels；
Calculate tensor impedance and the son that inclines；
Obtain the Carnot model and phase information of each detection instrument；
According to the analysis of spectrum sequence, the spectrum demarcation of the analysis of spectrum sequence of each detection channels, auto-power spectrum and mutually
Power spectrum, the tensor impedance, the Carnot model and phase information of sub and each detection instrument that inclines, generation
The underground data of side slope test zone.
It is preferred that before the electric field data and magnetic field data of the acquisition present position point, in addition to：
Noise monitoring periodically is carried out to detection channels described in every group, when noise data exceedes threshold value, points out to update ginseng
Number configuration.
It is preferred that before the electric field data and magnetic field data of the acquisition present position point, in addition to：
The initial time and end time, detection cycle and the detection channels number used of detection mission are set.
Side slope magnetic fluid detection system and system provided in an embodiment of the present invention, residing position is obtained by the detection instrument
Put electric field data and magnetic field data a little；The data acquisition equipment collects the residing position that all detection instruments are obtained
Electric field data and magnetic field data a little is put, and according to the electric field data of all present position points that the detection instrument is obtained
Time series data is generated with magnetic field data；The data processing equipment calculates according to the time series data and obtains each institute
State the analysis of spectrum sequence of detection channels；Calculate the spectrum demarcation of the analysis of spectrum sequence of each detection channels, auto-power spectrum and mutually
Power spectrum；Calculate tensor impedance and the son that inclines；Obtain the Carnot model and phase information of each detection instrument；According to institute
Analysis of spectrum sequence is stated, spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels, the tensor
Impedance, the Carnot model and phase information of sub and each detection instrument that inclines, generation side slope test zone
Underground data, realizes fast and effectively Underground water aggregation situation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of side slope magnetic fluid detection system provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of wall scroll side line formula detection instrument dividing mode provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of a plurality of side line formula detection instrument dividing mode provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of cover type detection instrument dividing mode provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of the road MT fields wire laying mode of standard 5 provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram of the road MT fields wire laying mode of standard 4 provided in an embodiment of the present invention；
Fig. 7 is a kind of schematic flow sheet of side slope magnetic fluid detection method provided in an embodiment of the present invention.
Embodiment
Fig. 1 is a kind of structural representation of side slope magnetic fluid detection system provided in an embodiment of the present invention, and reference picture 1 should
System includes：At least one set of detection channels, data acquisition equipment, data processing equipment；
Wherein, detection channels described in every group include at least two detection instruments, and the detection instrument includes electrode sensor
And Magnetic Sensor；The distance between detection instrument described in each two is less than or equal to the first distance threshold；
The detection instrument, electric field data and magnetic field data for obtaining present position point；
Specifically, each detection instrument is correspondingly arranged on a measuring point.
The data acquisition equipment, the electric field number for collecting all present position points that the detection instrument is obtained
According to and magnetic field data, and given birth to according to the electric field data and magnetic field data of all present position points that the detection instruments are obtained
Into time series data；
The data processing equipment, the spectrum of each detection channels is obtained for being calculated according to the time series data
Analytical sequence；Calculate spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels；Obtain each
The Carnot model and phase information of the detection instrument；According to the analysis of spectrum sequence, the spectrum of each detection channels
Spectrum demarcation, auto-power spectrum and the crosspower spectrum of analytical sequence, the tensor impedance, sub and each detection instrument that inclines
Carnot model and phase information, generate side slope test zone underground data.
Side slope magnetic fluid detection system provided in an embodiment of the present invention, present position point is obtained by the detection instrument
Electric field data and magnetic field data；The data acquisition equipment collects the present position point that all detection instrument is obtained
Electric field data and magnetic field data, and according to all electric field data for the present position point that the detection instrument is obtained and magnetic field
Data generate time series data；The data processing equipment is calculated according to the time series data obtains each detection
The analysis of spectrum sequence of passage；Calculate spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels；
According to the analysis of spectrum sequence, spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels, institute
State tensor impedance, the Carnot model and phase information of sub and each detection instrument that inclines, generation side slope test
The underground data in region, realizes fast and effectively Underground water aggregation situation.
The distribution mode of detection instrument is illustrated below by specific embodiment.
Fig. 2 is a kind of schematic diagram of wall scroll side line formula detection instrument dividing mode provided in an embodiment of the present invention, and Fig. 3 is this
A kind of schematic diagram for a plurality of side line formula detection instrument dividing mode that inventive embodiments are provided, Fig. 4 provides for the embodiment of the present invention
A kind of cover type detection instrument dividing mode schematic diagram, reference picture 3 to 4, described side slope detection instrument division methods, draw
Point detection instrument the inner case of whole tested side slope can be reflected, the present embodiment by the way of single-point is detected,
Measuring point (detection instrument) in tested side slope not only can will effectively represent whole region, and the position of division measuring point will have
Rule；The number of measuring point is determined according to side slope situation, for generaI investigation, measuring point quantity should not in whole tested region
Ask too many, i.e. the distance between measuring point and measuring point is than larger, and general control is surveyed between 50m-100m, and for detailed survey
The distance between point is smaller, and the quantity of measuring point is relatively more in tested region, can accomplish when inside side slope in detail
Reflection, the control of the distance between general measuring point and measuring point is within 20 meters；According to field operation situation, measuring point is allowed as much as possible
Well-regulated figure is formed, measuring point one survey line of formation is most common method, and can be arranged for the larger side slope of area
A plurality of survey line；The coordinate or longitude and latitude of measuring point need to record during measurement, and are not considering what GPS location was brought
In the case of error, there is continuity in all measuring point coordinates or the size of longitude and latitude, and this is also established for the data inversion in later stage
Basis is determined.
For the implementation of a detection instrument, the present invention provides two kinds of possible implementations：
Mode 1：The road MT fields wire laying mode of standard 5；
Mode 22：4 road MT fields wire laying modes；
Fig. 5 is a kind of schematic diagram of the road MT fields wire laying mode of standard 5 provided in an embodiment of the present invention, reference picture 5, when adopting
During with 5 road MT fields wire laying mode of standard, the detection instrument is included：Four electrodes, three Magnetic Sensors and detection are set
Standby, three Magnetic Sensors are connected by cable with the detecting devices, and four electrodes pass through cable and the detection
Equipment is connected, and three Magnetic Sensor pairwise orthogonals are arranged in the ground of present position point, Magnetic Sensor described in each two
The distance between be more than or equal to second distance threshold value；Wherein, the first Magnetic Sensor in three Magnetic Sensors is pointed to just
The north to；The second Magnetic Sensor in three Magnetic Sensors points to due east direction；The 3rd in three Magnetic Sensors
Magnetic Sensor points to the earth's core；
First electrode and second electrode in four electrodes are set along east-west direction, the first electrode and described
Two electrodes are used for the electric field component of east-west direction；The 3rd electrode and the 4th electrode in four electrodes are set along North and South direction
Put, the 3rd electrode and the 4th electrode are used for the electric field component of North and South direction.
Fig. 6 is a kind of schematic diagram of the road MT fields wire laying mode of standard 4 provided in an embodiment of the present invention, reference picture 6, when adopting
During with 4 road MT fields wire laying mode of standard, the detection instrument is included：The detection instrument is included：Four electrodes, described in two
Magnetic Sensor and detecting devices, two Magnetic Sensors are connected by cable with the detecting devices, and four electrodes lead to
Cross cable to be connected with the detecting devices, the first Magnetic Sensor in two Magnetic Sensors points to direct north, two institutes
The second Magnetic Sensor stated in Magnetic Sensor points to due east direction；Between first Magnetic Sensor and second Magnetic Sensor
Distance be more than or equal to second distance threshold value；
First electrode and second electrode in four electrodes are set along east-west direction, the first electrode and described
Two electrodes are used for the electric field component of east-west direction；The 3rd electrode and the 4th electrode in four electrodes are set along North and South direction
Put, the 3rd electrode and the 4th electrode are used for the electric field component of North and South direction.
Preferably, the first electrode and the second electrode at intervals of 50m；3rd electrode and the 4th electricity
Pole at intervals of 100m.
Preferably, the second distance threshold value is 5m.
Specifically, for the road MT fields wire laying mode of standard 5, three Magnetic Sensor pairwise orthogonals are buried in the earth, in order to keep away
Exempt to interfere, the distance between two Magnetic Sensors should be maintained at more than 5m, the distance of Magnetic Sensor and survey meter is also big
In 5m；Before soil that Magnetic Sensor is nuzzled, it is necessary to it is good with cable connection, it is necessary to precisely to place Magnetic Sensor, sensing
The bottom (being that one end for not connecing cable) of device shell must accurately point to corresponding direction：X- Magnetic Sensors Hx- refers to
To due north, Y- Magnetic Sensors Hy- points to due east, and Z- Magnetic Sensors Hz- is vertical downwardly directed to the earth's core；Using compass and two mark posts
Determine the correct direction of Magnetic Sensor：First man first inserts first mark post in soil, then commands second people with compass
Second mark post is inserted in soil along north-south, direct north is thus determined, due east direction can use same method to determine；
The horizontal and vertical of sensor is determined with horizon rule, must be careful during placement Magnetic Sensor, it is to avoid it is moved under microseism, because
The Magnetic Sensor of this horizontal positioned needs to be buried in the earth to fix, and general buried depth is in 30cm or so, and the sensor being disposed vertically
Need to be buried in the earth the length more than half；It is further noted that Magnetic Sensor cable must be fixed manually, it is to avoid
Deadweight and wind cause unnecessary interference；
For the described road MT fields wire laying mode of standard 5, mutually perpendicular electric field component Ex components and Ey points are measured
Amount, measuring each electric field component needs to use two electrodes, by they be embedded to or insertion soil in (concrete mode will be according to choosing
Electrode type is determined), electrode gap about 100m；The exact position of each electrode is made using compass or theodolite, south is write down
North and the distance of thing electrode, this distance are needed to use when setting instrument parameter, and electrode is buried in the earth into 20-30cm, it is ensured that
Electrode can be good at contacting with soil, need to add water into soil in the case of antecedent soil moisture；Typical grounding resistance is several
Between hundred ohm to 10k ohm, but in high resistance area, such as desert area, grounding resistance may be higher, in this case,
Recommend buffering cable, and should be noted electrode cable laying should not be too near to Magnetic Sensor (>1m)；
And for 4 road MT fields wire laying modes, reduced on 5 road MT fields wire laying modes, simply use two
Individual Magnetic Sensor (Hx and Hy), other and 5 road MT fields wire laying modes should be consistent.
Described detecting parameter is set, and before to parameter setting, electrode and Magnetic Sensor must be in strict accordance with above-mentioned cloth
Line mode carries out field installation, it also will be appreciated that the applicable gain ranging of measured zone and filter before the task that measures is set
Ripple device type, here, we are configured to 5 road standard MT field works, 10kHz frequency range is arrived in measurement 0.001；In order to
Obtain best data result, it is necessary to which the noise level for surveying area is detected, this is to reasonable selection yield value (particularly electric road
Yield value) it is extremely important, mainly the value of gain 1 is in general set, only when having used low pass filter or direct current inclined
Just increase the value of gain 2 when moving compensation；Self-inspection is carried out firstly the need of survey meter, all measure is checked in self-detection result
Whether miscue information alert row is 0, needs to be corrected according to details if there is miscue, for appearance
Warning message, illustrates that warning item can not be used but still can measured；For test noise in the wild, it can be surveyed to all
Road makes the record of one time one minute or so of relatively low sample rate, and gain 1 and 2 is both configured to 1, and low-frequency filter pass is opened in selection
Close low pass 4Hz wave filters etc.；Perform measurement task after should check all measuring channels, under normal circumstances the quality of data mainly by
Transmission of electricity line traffic control, but also some direct current offset, the input voltage range in electric road is ± 1.25v, magnetic track input voltage range
It is ± 10v, now should conscientiously checks the offset voltage amplitude of electric track data, winning out gain by this measurement is set and inclined
Shift correction；Data are overflow when ensuring to reserve electromagnetic field acute variation during enough amplitude rising spaces are avoided one day when setting
Go out, it is proposed that the signal that electric road amplifies on analog-digital converter does not exceed 250mV；Magnetic track need not typically set gain to amplify
Device, because bar magnet has a preamplifier in itself, electric road yield value could be arranged to 8, and generally too high yield value is to signal
The effect of Quality advance is not obvious, only when signal is very weak or just uses large gain values during almost no electrical drift；Close
In the selection of low-frequency filter, RF4 is typically chosen, only when ground connection electricity according to the grounding resistance situation of operation field on the spot
Resistance it is very big (>10K Ω) when just select RF2 or RF1；Have selected can just set the work of different sample rates after suitable parameter
Make task, it should be noted that time interval at least reserved 1 minute between two adjacent tasks, it is ensured that latter measurement is appointed
Business can be smoothed out, if what is utilized is that high frequency sampling may need the reserved longer time to ensure that previous measurement task is stayed in
Data in caching are all write in memory.
Further, the first distance threshold 20m.
Fig. 7 is in a kind of schematic flow sheet of side slope magnetic fluid detection method provided in an embodiment of the present invention, this method
State side slope magnetic fluid detection system to perform, reference picture 7, this method includes：
Step 100, the electric field data and magnetic field data for obtaining present position point；
Step 101, the electric field data and magnetic field data for collecting all present position points that the detection instrument is obtained,
And time series number is generated according to the electric field data and magnetic field data of all present position points that the detection instrument is obtained
According to；
Step 102, the analysis of spectrum sequence according to each detection channels of time series data calculating acquisition；Calculate
Spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels；Calculate tensor impedance and the son that inclines；Obtain
Obtain the Carnot model and phase information of each detection instrument；
Specifically, wherein tensor impedance and the son that inclines is used to carry out data analysis.Detection instrument set with corresponding measuring point.
Step 103, according to the analysis of spectrum sequence, the spectrum demarcation of the analysis of spectrum sequence of each detection channels, from work(
Rate is composed and crosspower spectrum, the tensor impedance, the Carnot model and phase of sub and each detection instrument that inclines
Information, generates the underground data of side slope test zone.
Side slope magnetic fluid detection method provided in an embodiment of the present invention, by the electric field data and magnetic that obtain present position point
Field data；
The electric field data and magnetic field data of all present position points that the detection instrument is obtained are collected, and according to complete
Electric field data and magnetic field data the generation time series data for the present position point that detection instrument described in portion is obtained；According to institute
State time series data and calculate the analysis of spectrum sequence for obtaining each detection channels；Calculate the spectrum point of each detection channels
Analyse spectrum demarcation, auto-power spectrum and the crosspower spectrum of sequence；Calculate tensor impedance and the son that inclines；Obtain the card of each detection instrument
Buddhist nun's Asia resistivity and phase information；According to the analysis of spectrum sequence, the spectrum demarcation of the analysis of spectrum sequence of each detection channels,
Auto-power spectrum and crosspower spectrum, the tensor impedance, the Carnot model of sub and each detection instrument that inclines and
Phase information, generates the underground data of side slope test zone.Realize fast and effectively Underground water aggregation situation.
Optionally, before the electric field data and magnetic field data of the acquisition present position point, in addition to：
Noise monitoring periodically is carried out to detection channels described in every group, when noise data exceedes threshold value, points out to update ginseng
Number configuration.
Optionally, before the electric field data and magnetic field data of the acquisition present position point, in addition to：
The initial time and end time, detection cycle and the detection channels number used of detection mission are set.
Specifically, needing further to set software before data processing, demarcating file, newly-built side are selected
Line, (allocation project information can be automatically saved in system allocation project information, and be not limited to some engineering, so if adopting
The bar magnet collected used in data is constant, and direction is also constant, it is only necessary to which setting once just can be with if the bar magnet more renewed needs again
It is added), setting sensor, (sensor type in electric road only needs to selection one, and magnetic track sensor will add multiple right
The type and name answered), (software is handled single-point, it is necessary to add passage, and the road MT of standard 5 is wild for the selection and addition of passage
Outer arrangement needs 5 passages, and the road MT fields arrangement of standard 4 needs 4 passages), editor surveys road (to the passage of addition
Enter edlin, correspond to each electric road or magnetic track), MT points are created, measuring point is created, " .ats " formatted data is finally imported；
The data collected using survey meter are needed to copy in PC by manually by software come inverting, the data collected are " .ats "
Formatted data, they belong to time series file,
These time series files are imported in data processing software, are handled as follows：
S1, the analysis of spectrum sequence for carrying out each passage of FFT computings calculating first；
S2 and then spectrum demarcation and auto-power spectrum and the crosspower spectrum for calculating resulting each analysis of spectrum sequence；
S3 and then calculate tensor impedance and the parameter such as the son that inclines, it is final further to calculate other parameters, such as apparent resistivity and phase
Position etc..
Specifically, obtaining " .edi " file, these files carry the Carnot model and phase information at measuring point；
S4, integrated data processing inverting is carried out to these frequency domain files, obtain whole piece side line or whole survey each of area
Kind subsurface information (including side line or planar point position and scalar, plane vector, apparent resistivity, the phase of surveying area, incline son, constant
Amount, electric field and magnetic field, model, isogram)；
Processing routine is as follows：Review time sequence, power spectrum etc. are answered before handling each measuring point, rejecting has dry
The time series disturbed)；
Parameter setting guarantee to be repeated in processing procedure and handles out best observed result；Required according to job design
Handle required low-limit frequency, or less than requiring three to four frequencies of frequency；
It should analyze simultaneously, contrast and survey magnetotelluric sounding curve, determining the polarization mode (TE and TM) of every curve, adjusting
Whole polarization mode selects wrong data point；
20% of the frequency deleted on one curve no more than the total frequency number of the curve, it is impossible to continuously delete more than three
Frequency.The frequency of reservation, which should be maintained on whole piece curve the curve that is evenly distributed, irregular distortion distortion can not occurs；Curve
First branch is prevaricated by design code with tail, it is ensured that have enough data points；Data point poor continuity, the big point of standard deviation, Ying Can
Photograph varied curve is repeated smoothly, and it is objective reasonable to accomplish, smoothed curve form is met the general rule for surveying the change of area's inner curve
Rule；Data inversion, under being used for heuristically by inverting final choice repeatedly and the closest inversion result of actual geological model
The situation that geologic body is present.
In addition, ZFFT frequency spectrum refinements are carried out to the electric road information collected, to multidate information, crack information, Low value anomaly
It is identified, and then qualitative and quantitative analysis is carried out to interflow subsurface drainage, underground vacant areas, rift structure；With reference to the spy changed over time
Levy parameter (multidate information, crack information, Low value anomaly) and inverting obtains the aspect side slope magnetic fluid of isogram two and divided
Analysis, can greatly improve accuracy rate.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of side slope magnetic fluid detection system, it is characterised in that including：At least one set of detection channels, data acquisition equipment, number
According to processing equipment；
Wherein, detection channels described in every group include at least two detection instruments, and the detection instrument is passed including at least two electrodes
Sensor and two Magnetic Sensors；The distance between detection instrument described in each two is less than or equal to the first distance threshold；
The detection instrument, electric field data and magnetic field data for obtaining present position point；
The data acquisition equipment, for collect all electric field datas for the present position point that the detection instruments are obtained and
Magnetic field data, and during according to all electric field datas for the present position point that the detection instrument is obtained and magnetic field data generation
Between sequence data；
The data processing equipment, the analysis of spectrum of each detection channels is obtained for being calculated according to the time series data
Sequence；Calculate spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of each detection channels；Calculate tensor impedance
With the son that inclines；Obtain the Carnot model and phase information of each detection instrument；According to the analysis of spectrum sequence, Mei Gesuo
State spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of detection channels, the tensor impedance, the son and every of inclining
The Carnot model and phase information of the individual detection instrument, generate the underground data of side slope test zone.
2. system according to claim 1, it is characterised in that the detection instrument is included：Four electrodes, three magnetic
Sensor and detecting devices, three Magnetic Sensors are connected by cable with the detecting devices, and four electrodes pass through
Cable is connected with the detecting devices, and three Magnetic Sensor pairwise orthogonals are arranged in the ground of present position point, and every two
The distance between individual described Magnetic Sensor is more than or equal to second distance threshold value；Wherein, first in three Magnetic Sensors
Magnetic Sensor points to direct north；The second Magnetic Sensor in three Magnetic Sensors points to due east direction；Three magnetic
The 3rd Magnetic Sensor in sensor points to the earth's core；
First electrode and second electrode in four electrodes are set along east-west direction, the first electrode and second electricity
Pole is used for the electric field component of east-west direction；The 3rd electrode and the 4th electrode in four electrodes are set along North and South direction, institute
Stating the 3rd electrode and the 4th electrode is used for the electric field component of North and South direction.
3. system according to claim 1, it is characterised in that the detection instrument is included：The detection instrument is included：Four
Individual electrode, two Magnetic Sensors and detecting devices, two Magnetic Sensors are connected by cable with the detecting devices,
Four electrodes are connected by cable with the detecting devices, and the first Magnetic Sensor in two Magnetic Sensors is pointed to just
The north is to the second Magnetic Sensor in two Magnetic Sensors points to due east direction；First Magnetic Sensor and described
The distance between two Magnetic Sensors are more than or equal to second distance threshold value；
First electrode and second electrode in four electrodes are set along east-west direction, the first electrode and second electricity
Pole is used for the electric field component of east-west direction；The 3rd electrode and the 4th electrode in four electrodes are set along North and South direction, institute
Stating the 3rd electrode and the 4th electrode is used for the electric field component of North and South direction.
4. the system according to Claims 2 or 3, it is characterised in that the interval of the first electrode and the second electrode
For 50m；3rd electrode and the 4th electrode at intervals of 100m.
5. the system according to Claims 2 or 3, it is characterised in that the second distance threshold value is 5m.
6. system according to claim 1, it is characterised in that the first distance threshold 20m.
7. a kind of side slope magnetic fluid detection method, methods described is visited by the side slope magnetic fluid described in claim 1 to 6 any one
Examining system is performed, it is characterised in that including：
Obtain the electric field data and magnetic field data of present position point；
The electric field data and magnetic field data of all present position points that the detection instrument is obtained are collected, and according to whole institutes
State the electric field data and magnetic field data generation time series data of the present position point of detection instrument acquisition；
The analysis of spectrum sequence for obtaining each detection channels is calculated according to the time series data；Calculate each detection
Spectrum demarcation, auto-power spectrum and the crosspower spectrum of the analysis of spectrum sequence of passage；
Calculate tensor impedance and the son that inclines；
Obtain the Carnot model and phase information of each detection instrument；
According to the analysis of spectrum sequence, spectrum demarcation, auto-power spectrum and the cross-power of the analysis of spectrum sequence of each detection channels
Spectrum, the tensor impedance, the Carnot model and phase information of sub and each detection instrument that inclines, generates side slope
The underground data of test zone.
8. method according to claim 7, it is characterised in that electric field data and magnetic field in the acquisition present position point
Before data, in addition to：
Noise monitoring periodically is carried out to detection channels described in every group, when noise data exceedes threshold value, points out undated parameter to match somebody with somebody
Put.
9. method according to claim 7, it is characterised in that electric field data and magnetic field in the acquisition present position point
Before data, in addition to：
The initial time and end time, detection cycle and the detection channels number used of detection mission are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202864.5A CN107085240B (en) | 2017-03-30 | 2017-03-30 | Slope magnetofluid detection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202864.5A CN107085240B (en) | 2017-03-30 | 2017-03-30 | Slope magnetofluid detection system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107085240A true CN107085240A (en) | 2017-08-22 |
| CN107085240B CN107085240B (en) | 2020-01-10 |
Family
ID=59615123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710202864.5A Active CN107085240B (en) | 2017-03-30 | 2017-03-30 | Slope magnetofluid detection system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107085240B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375801A (en) * | 2018-02-07 | 2018-08-07 | 吉林大学 | Ground Nuclear Magnetic Resonance movable type three-component magnetic surveying device and magnetic survey method |
| CN110133727A (en) * | 2019-06-10 | 2019-08-16 | 周丹 | Ultra-deep oil and gas reservoir high-precision electromagnetism spectrum detection method |
| CN111580169A (en) * | 2020-05-29 | 2020-08-25 | 河海大学 | Anti-interference detection system and method for leakage channel of weir dam |
| CN114200529A (en) * | 2021-12-10 | 2022-03-18 | 湖南五维地质科技有限公司 | Overwater earth electromagnetic measurement mode and corresponding data processing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080228401A1 (en) * | 2003-12-25 | 2008-09-18 | Renan Zhou | Method and Apparatus for Measuring the Resistivity of Electromagnetic Waves of the Earth |
| WO2010082868A1 (en) * | 2009-01-13 | 2010-07-22 | Общество С Ограниченной Ответственностью "Эмишэн" | Geophysical exploration method and device for recording parameters of the natural pulsed electromagnetic field of the earth |
| CN101872026A (en) * | 2010-06-21 | 2010-10-27 | 岳棋拄 | Natural electromagnetic radiation sounding multichannel detection method |
| CN104570131A (en) * | 2014-12-10 | 2015-04-29 | 中国船舶重工集团公司第七二二研究所 | Method and device for estimating magnetotelluric parameters |
| US20150252668A1 (en) * | 2014-03-07 | 2015-09-10 | Baker Hughes Incorporated | Method and Apparatus for Hydraulic Fracture Geometry Evaluation |
-
2017
- 2017-03-30 CN CN201710202864.5A patent/CN107085240B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080228401A1 (en) * | 2003-12-25 | 2008-09-18 | Renan Zhou | Method and Apparatus for Measuring the Resistivity of Electromagnetic Waves of the Earth |
| WO2010082868A1 (en) * | 2009-01-13 | 2010-07-22 | Общество С Ограниченной Ответственностью "Эмишэн" | Geophysical exploration method and device for recording parameters of the natural pulsed electromagnetic field of the earth |
| CN101872026A (en) * | 2010-06-21 | 2010-10-27 | 岳棋拄 | Natural electromagnetic radiation sounding multichannel detection method |
| US20150252668A1 (en) * | 2014-03-07 | 2015-09-10 | Baker Hughes Incorporated | Method and Apparatus for Hydraulic Fracture Geometry Evaluation |
| CN104570131A (en) * | 2014-12-10 | 2015-04-29 | 中国船舶重工集团公司第七二二研究所 | Method and device for estimating magnetotelluric parameters |
Non-Patent Citations (3)
| Title |
|---|
| 俞历 等: "新型GMS-07eMT仪和张量CSAMT", 《第十届中国国际地球电磁学术讨论会论文集》 * |
| 刘国栋: "《刘国栋文集》", 31 March 2014, 地震出版社 * |
| 李浩 等: "地下磁流体探测原理研究", 《建筑资讯》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375801A (en) * | 2018-02-07 | 2018-08-07 | 吉林大学 | Ground Nuclear Magnetic Resonance movable type three-component magnetic surveying device and magnetic survey method |
| CN110133727A (en) * | 2019-06-10 | 2019-08-16 | 周丹 | Ultra-deep oil and gas reservoir high-precision electromagnetism spectrum detection method |
| CN111580169A (en) * | 2020-05-29 | 2020-08-25 | 河海大学 | Anti-interference detection system and method for leakage channel of weir dam |
| CN114200529A (en) * | 2021-12-10 | 2022-03-18 | 湖南五维地质科技有限公司 | Overwater earth electromagnetic measurement mode and corresponding data processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107085240B (en) | 2020-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101520517B (en) | Method for accurately evaluating targets containing oil gas in clastic rock basin | |
| CN103869371B (en) | Manual field source frequency domain full-gradient electromagnetic measuring method | |
| CN107085240A (en) | A kind of side slope magnetic fluid detection system and method | |
| CN104020496B (en) | A kind of surface controllable source electromagnetic exploration method of mode axially in line | |
| CN111781651B (en) | Karst detection method combining three geophysical prospecting methods and two geological methods | |
| CN102171588A (en) | Differential gradiometric magnetometer, system and method of use | |
| CN206378448U (en) | Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods | |
| CN103207412A (en) | Method for detecting solution leaching and groundwater pollution scope of acid in-situ leaching of uranium | |
| WO2004068172A1 (en) | Systems and methods for resistivity measurement | |
| US20230333276A1 (en) | Method and system for exploring hidden karst pipelines | |
| CN104714254A (en) | Coal mine water-accumulating gob detection method and device based on transient electromagnetic method | |
| KR100944096B1 (en) | System for streamer electrical resistivity survey and method for analysis of underground structure below a riverbed | |
| Brown et al. | A comparative integrated geophysical study of Horseshoe Chimney Cave, Colorado Bend State Park, Texas | |
| JP2939334B2 (en) | Sub-audio low-frequency magnetometer | |
| CN108761540B (en) | A kind of frequency domain natural electric field three-dimensional exploitation method | |
| CN111175832B (en) | Frequency domain electromagnetic induction exploration method for estimating three-dimensional flow characteristics of underground water | |
| CN111175831B (en) | Conduction electrical prospecting method for estimating horizontal flow characteristics of underground water | |
| RU2650084C2 (en) | Method of monitoring control of the physical state of a geological environment | |
| Ullrich et al. | Geophysical prospection in the Southern Harz Mountains, Germany: settlement history and landscape archaeology along the interface of the Latène and Przeworsk cultures | |
| Seren et al. | Combined high‐resolution magnetics and GPR surveys of the roman town of Flavia Solva | |
| RU2678535C1 (en) | Method of monitoring state of diaphragm from boron-cutting alumina-cement concrete piles in earth dam by electrical tomography | |
| CA2782353C (en) | A system for scanning of earth's self-potential field | |
| US3309607A (en) | Method for the determination of direction of effective strike and dip from telluric potentials utilizing a tspread quadrupole electrode array | |
| Allen | Electrical conductivity imaging of aquifers connected to watercourses: A thesis focused on the Murray Darling Basin, Australia | |
| CN206331130U (en) | The arrangement of measuring-line structure positioned for large-scale draining pipe culvert |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |