CN108205003A - Polluted Soil rapid detection method and its arrangement of measuring-line structure based on electromagnetic induction method - Google Patents
Polluted Soil rapid detection method and its arrangement of measuring-line structure based on electromagnetic induction method Download PDFInfo
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- CN108205003A CN108205003A CN201810193060.8A CN201810193060A CN108205003A CN 108205003 A CN108205003 A CN 108205003A CN 201810193060 A CN201810193060 A CN 201810193060A CN 108205003 A CN108205003 A CN 108205003A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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Abstract
The invention discloses a kind of Polluted Soil rapid detection methods and its arrangement of measuring-line structure based on electromagnetic induction method, include the following steps：In the uncontaminated region of Polluted area and its periphery several measuring points of arrangement are preset with appropriate intervals；Utilize each measuring point acquisition conductivity data and phase data of the electromagnetic induction method Acquisition Instrument along calibration；Interpolation processing is carried out to the collected conductivity data of institute and phase data, draws corresponding conductivity isopleth plan view and phase isopleth plan view；It is compared being located in the Polluted area respectively with the conductivity data of the measuring point in the uncontaminated region and phase data, and with reference to the conductivity isopleth plan view and the phase isopleth plan view, judge the pollutant plane distributing scope in the Polluted area.It is an advantage of the invention that:All standing detection, collection period is shorter, input cost is relatively low and place is invaded, and collection result is presented in the form of planar without destruction, more representative.
Description
Technical field
The invention belongs to rock and soil engineering detection technical fields, and in particular to a kind of Polluted Soil based on electromagnetic induction method is quick
Detection method and its arrangement of measuring-line structure.
Background technology
Manufacturing industry scale constantly expands now, and the level of urbanization is continuously improved, and social economy is flourished.But
Develop in scientific and technological level, while living standards of the people improve, environmental pollution but getting worse causes seriously to the ecosystem
Destruction, affect the quality of life, health and life activity of the mankind, and cause a series of social concern, make
About expanding economy.In major pollution problem, land pollution also becomes the problem of more severe, wherein occur it is most,
The maximum type of harm have heavy metal, petroleum hydrocarbon, persistence organic pollutant, other industrial chemicals, eutrophic waste,
Radioactive element and pathogenic organisms etc..For contaminated soil and place, analysis and evaluation is made immediately, using detection skill
Art detects contaminated area, carries out assessment, the work administered and developed and used again.
Current Domestic is still more single about the detection technique means of Polluted Soil, relies primarily on drill hole sampling and carries out in fact
Room analysis is tested to determine the pollution level and approximate range of Polluted Soil, however, the method for drill hole sampling analysis is only capable of embodying single-point
The Polluted Soil information of position, acquisition, analytical cycle are longer, and cost is higher, and limited amount, without representativeness, have general to put
The suspicion in face.At present, it is more using layings such as conventional two-dimensional high-density electric, resistivity CT methods, geological radar methods there are also unit
Bar survey line carries out the detection of Polluted Soil, then a plurality of detection cross-sectional data is compared and analyzed, and determines the distribution of pollutant,
But due to section limited amount, final testing result also only reflects the situation at section, lack it is representative, and the implementation cycle compared with
It is long.
Invention content
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of pollutions based on electromagnetic induction method
Native rapid detection method and its arrangement of measuring-line structure, the detection method by Polluted area and its periphery uncontaminated region with
Appropriate intervals preset several measuring points of arrangement, and using electromagnetic induction method Acquisition Instrument sequentially acquire conductivity data on each measuring point and
Phase data, to judge pollutant plane distributing scope.
The object of the invention realization is completed by following technical scheme：
A kind of Polluted Soil rapid detection method based on electromagnetic induction method, it is characterised in that the detection method includes following step
Suddenly：In the uncontaminated interregional every default several measuring points of arrangement of Polluted area and its periphery；Utilize electromagnetic induction method Acquisition Instrument edge
Each measuring point acquisition conductivity data and phase data of arrangement；The collected conductivity data of institute and phase data are carried out
Interpolation processing draws corresponding conductivity isopleth plan view and phase isopleth plan view；The pollution will be located at respectively
The conductivity data and phase data of the measuring point in the region and uncontaminated region are compared, and with reference to the electricity
Conductance isopleth plan view and the phase isopleth plan view judge the pollutant plane distribution model in the Polluted area
It encloses.
The measuring point is distributed in point cloud, and the spacing between the adjacent measuring point is between 0-10 meters.
The electromagnetic induction method Acquisition Instrument carries out data acquisition successively in ground in face of each measuring point, sequentially acquires each described
The route of measuring point is in one kind in arc type survey line, Back Word type survey line, parallel survey line.
The method for judging the pollutant plane distributing scope in the Polluted area is：It calculates each in the uncontaminated region
The conductivity average value and phase average of the measuring point；When the conductivity value and phase of measuring point described in the Polluted area
Value is considered as abnormal measuring point when being at least 1.5 times of the uncontaminated region internal conductance rate average value and phase average, with reference to
The conductivity isopleth plan view and the phase isopleth plan view, if the exception measuring point is at least three or more
During region clustering, the aggregation zone that can determine that the abnormal measuring point is pollution risk region.
Calculate the phase average of each measuring point in the pollution risk region；When institute each in the pollution risk region
The phase average of measuring point is stated relative to the change rate △ of the phase average of each measuring point in the uncontaminated regionPhase valueGreatly
When 0.8, then the pollution risk region is heavy metal pollution risk zones；When institute each in the pollution risk region
The phase average of measuring point is stated relative to the change rate △ of the phase average of each measuring point in the uncontaminated regionPhase valueGreatly
In or equal to 0.5 and less than 0.8 when, then the pollution risk region be organic pollution risk zones or petroleum hydrocarbon contaminated risk
Region.
A kind of arrangement of measuring-line structure for being related to any above-mentioned Polluted Soil rapid detection method based on electromagnetic induction method, it is special
Sign is that the arrangement of measuring-line structure includes several measuring points being arranged in the uncontaminated region of Polluted area and its periphery, wherein one
Electromagnetic induction method Acquisition Instrument is disposed on a measuring point.
Each measuring point is sequentially connected one formed in arc type survey line, Back Word type survey line, parallel survey line in point cloud distribution
Kind.
It is an advantage of the invention that：All standing detection, collection period is shorter, input cost is relatively low and place is invaded without destruction
Enter, and collection result is presented in the form of planar, more representative and reasonability.
Description of the drawings
Fig. 1 is to arrange the schematic diagram of measuring point in the uncontaminated region of Polluted area and its periphery in the present invention；
The floor map that it is in arc type survey line in the present invention that Fig. 2, which is,；
The floor map that it is in Back Word type survey line in the present invention that Fig. 3, which is,；
Fig. 4 is the floor map of parallel survey line in the present invention.
Specific embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, with
Convenient for the understanding of technical staff of the same trade：
Such as Fig. 1-4, label 1-4 is respectively in figure：Uncontaminated region 1, Polluted area 2, measuring point 3, survey line 4.
Embodiment：As shown in Figs 1-4, the present embodiment is quickly detected more particularly to a kind of Polluted Soil based on electromagnetic induction method
Method and its arrangement of measuring-line structure, Polluted Soil rapid detection method specifically include following steps：
（1）As shown in Figure 1, selecting region to be measured, region to be measured should include the uncontaminated region 1 of Polluted area 2 and its periphery,
Several measuring points 3 of uniformly distributed label in region to be measured make measuring point 3 in point cloud distribution, the quantity and adjacent measuring point 3 of measuring point 3 it
Between spacing according in Polluted area 2 pollutant distribution estimate with detection accuracy requirement carry out choosing comprehensively determine, this implementation
In example, the spacing between adjacent measuring point 3 is not preferably greater than 10m；Under normal conditions, lime or special label can be used in measuring point 3
Object is identified；
（2）As shown in Figure 2,3, 4, it after label measuring point 3 is laid, determines the path of survey line 4, can be bow as shown in Figure 2
Font survey line 4 or Back Word type survey line 4 as shown in Figure 3 can be parallel surveys line 4 as shown in Figure 4；According to reality
The requirement of engineering on border if you need to increase accuracy of detection, then can continue arrangement encryption survey line 4；
（3）As shown in Figs 1-4, on the ground, using electromagnetic induction method Acquisition Instrument along identified survey line 4, successively to each survey
Point 3 carries out data acquisition, including conductivity data and phase data, utilizes the collected tables of data of electromagnetic induction method Acquisition Instrument institute
What is levied is the integrated data at corresponding 3 position of measuring point on entire depth direction；
（4）Interpolation processing will be carried out in the collected conductivity data in each 3 place of measuring point and phase data, and draw corresponding electricity
Conductance isopleth plan view and phase isopleth plan view, so as to intuitively show conductivity data and phase in plan view
Data；At the same time, conductivity data and phase data at each measuring point 3 in uncontaminated region 1 are calculated, it is uncontaminated so as to obtain
Conductivity average value and phase average in region 1；
（5）The judgement in pollution risk region is carried out, specific decision criteria is：With reference to aforementioned conductivity isopleth plan view and phase
Position isopleth plan view, when the conductivity value of measuring point 3 and phase value are that uncontaminated 1 internal conductance rate of region is put down in Polluted area 2
It is considered as abnormal measuring point at least 1.5 times of mean value and phase average, if abnormal measuring point is in the area of at least three or more quantity
When domain is assembled, then the aggregation zone that can determine that these abnormal measuring points is pollution risk region；
（6）After screening determines above-mentioned pollution risk region in Polluted area 2, to the pollution type in pollution risk region
Judged；Calculate the phase average of each measuring point 3 in pollution risk region；
When measuring point 3 each in pollution risk region phase average relative to each measuring point 3 in uncontaminated region 1 phase average
Change rate △Phase valueWhen >=0.8, then judge pollution risk region for heavy metal pollution risk zones；
When measuring point 3 each in pollution risk region phase average relative to each measuring point 3 in uncontaminated region 1 phase average
Change rate △Phase valueDuring more than or equal to 0.5 and less than 0.8, then judge pollution risk region for organic pollution risk zones
Or petroleum hydrocarbon contaminated risk zones；
It should be noted that aforementioned change rate △Phase valueComputational methods be：
△Phase value=（iPollution risk region-iUncontaminated region）/iUncontaminated region
Wherein, iUncontaminated regionFor the phase average in uncontaminated region 1；iPollution risk regionFor the phase average in pollution risk region
Value.
Claims (7)
1. a kind of Polluted Soil rapid detection method based on electromagnetic induction method, it is characterised in that the detection method includes following step
Suddenly：In the uncontaminated interregional every default several measuring points of arrangement of Polluted area and its periphery；Utilize electromagnetic induction method Acquisition Instrument edge
Each measuring point acquisition conductivity data and phase data of calibration；The collected conductivity data of institute and phase data are carried out
Interpolation processing draws corresponding conductivity isopleth plan view and phase isopleth plan view；The pollution will be located at respectively
The conductivity data and phase data of the measuring point in the region and uncontaminated region are compared, and with reference to the electricity
Conductance isopleth plan view and the phase isopleth plan view judge the pollutant plane distribution model in the Polluted area
It encloses.
A kind of 2. Polluted Soil rapid detection method based on electromagnetic induction method according to claim 1, it is characterised in that institute
It states measuring point to be distributed in point cloud, the spacing between the adjacent measuring point is between 0-10 meters.
A kind of 3. Polluted Soil rapid detection method based on electromagnetic induction method according to claim 1, it is characterised in that institute
It states electromagnetic induction method Acquisition Instrument and carries out data acquisition successively in face of each measuring point in ground, sequentially acquire the route of each measuring point
In one kind in arc type survey line, Back Word type survey line, parallel survey line.
4. a kind of Polluted Soil rapid detection method based on electromagnetic induction method according to claim 1, it is characterised in that sentence
The method of pollutant plane distributing scope broken in the Polluted area is：Calculate each measuring point in the uncontaminated region
Conductivity average value and phase average；When the conductivity value and phase value of measuring point described in the Polluted area are described
It is considered as abnormal measuring point at least 1.5 times of uncontaminated region internal conductance rate average value and phase average, with reference to the conductivity
Isopleth plan view and the phase isopleth plan view, if the exception measuring point is at least three or more region clustering
When, the aggregation zone that can determine that the abnormal measuring point is pollution risk region.
A kind of 5. Polluted Soil rapid detection method based on electromagnetic induction method according to claim 4, it is characterised in that meter
Calculate the phase average of each measuring point in the pollution risk region；When the phase of the measuring point each in the pollution risk region
Position average value relative to the phase average of each measuring point in the uncontaminated region change rate △Phase valueIt is greater than or equal to
When 0.8, then the pollution risk region is heavy metal pollution risk zones；When the measuring point each in the pollution risk region
Phase average relative to the phase average of each measuring point in the uncontaminated region change rate △Phase valueIt is greater than or equal to
0.5 and less than 0.8 when, then the pollution risk region be organic pollution risk zones or petroleum hydrocarbon contaminated risk zones.
6. a kind of survey line cloth for being related to any Polluted Soil rapid detection method based on electromagnetic induction method in claim 1-5
Put structure, it is characterised in that the arrangement of measuring-line structure includes several be arranged in the uncontaminated region of Polluted area and its periphery
Measuring point is disposed with electromagnetic induction method Acquisition Instrument on one of them described measuring point.
7. a kind of arrangement of measuring-line knot of Polluted Soil rapid detection method based on electromagnetic induction method according to claim 6
Structure, it is characterised in that each measuring point is sequentially connected in point cloud distribution and forms arc type survey line, Back Word type survey line, parallel survey line
In one kind.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810193060.8A CN108205003A (en) | 2018-03-09 | 2018-03-09 | Polluted Soil rapid detection method and its arrangement of measuring-line structure based on electromagnetic induction method |
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| CN201810193060.8A CN108205003A (en) | 2018-03-09 | 2018-03-09 | Polluted Soil rapid detection method and its arrangement of measuring-line structure based on electromagnetic induction method |
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| CN107544097A (en) * | 2017-06-27 | 2018-01-05 | 上海市环境科学研究院 | A kind of soil pollution based on geophysical probing technique is accurately positioned and accurate evaluation method |
| CN107544094A (en) * | 2017-06-27 | 2018-01-05 | 上海市环境科学研究院 | A kind of place all standing pollution quick screening method based on frequency domain electromagnetic inductance gauge |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222668A (en) * | 2008-03-18 | 2009-10-01 | Ritsumeikan | Method for estimating oil contamination distribution of soil and applying result thereof to bioremediation |
| CN103207412A (en) * | 2012-09-27 | 2013-07-17 | 核工业北京化工冶金研究院 | Method for detecting solution leaching and groundwater pollution scope of acid in-situ leaching of uranium |
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| CN206348292U (en) * | 2016-12-26 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | Polluted Soil detection arrangement of measuring-line structure based on three-dimensional high-density resistivity method |
| CN107544097A (en) * | 2017-06-27 | 2018-01-05 | 上海市环境科学研究院 | A kind of soil pollution based on geophysical probing technique is accurately positioned and accurate evaluation method |
| CN107544094A (en) * | 2017-06-27 | 2018-01-05 | 上海市环境科学研究院 | A kind of place all standing pollution quick screening method based on frequency domain electromagnetic inductance gauge |
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