CN206378448U - Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods - Google Patents

Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods Download PDF

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Publication number
CN206378448U
CN206378448U CN201621433655.9U CN201621433655U CN206378448U CN 206378448 U CN206378448 U CN 206378448U CN 201621433655 U CN201621433655 U CN 201621433655U CN 206378448 U CN206378448 U CN 206378448U
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line
resistivity
measuring
geophysical prospecting
structure based
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许丽萍
胡绕
黄永进
李韬
马文亮
朱黎明
王蓉
陆礼训
贾兆磊
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Shanghai Survey Design And Research Institute Group Co ltd
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Shanghai Geotechnical Investigations and Design Institute Co Ltd
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Abstract

The utility model is specifically related to a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods, it is characterised in that:The detection arrangement of measuring-line structure includes some geological radar surveys line being arranged in the Polluted area, high-density resistivity survey line and resistivity CT surveys line, and the end of the end of the geological radar survey line, the end of the high-density resistivity survey line and the resistivity CT surveys line is extended in the uncontaminated region of the Polluted area periphery.The utility model has the advantages that:Collection period is shorter, input cost is relatively low, operating efficiency greatly improved, and testing result is combined synthetic determination for a variety of geophysical prospecting methods and obtained, and is presented with planar or body shape form, is compared to single detection method, the testing result degree of accuracy is higher.

Description

Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods
Technical field
The utility model is related to rock and soil engineering detection and testing field, and in particular to a kind of dirt based on comprehensive geophysical prospecting methods Dye soil detection arrangement of measuring-line structure.
Background technology
Manufacturing industry scale constantly expands now, and the level of urbanization is improved constantly, and social economy is flourished.But In scientific and technological level development, while living standards of the people are improved, environmental pollution is but increasingly serious, is caused seriously to the ecosystem Destruction, have impact on the quality of life of the mankind, healthy and life activity, and cause a series of social concern, make About expanding economy;In major pollution problems, the problem of land pollution also turns into more severe, wherein occur it is most, The maximum species of harm have heavy metal, petroleum hydrocarbon, persistence organic pollutant, other industrial chemicals, eutrophic discarded object, Radioactive element and pathogenic organisms etc., for contaminated soil and place, it is necessary to be visited using detection technique to contaminated area Survey makes A+E immediately, has reached easily assessment, the purpose administered and developed again.
Current Domestic is still more single on the detection technique means of Polluted Soil, relies primarily on the progress of boring and coring sample Lab analysis determines the pollution level and approximate range of Polluted Soil, however, the method for drill hole sampling analysis is only capable of embodying single The Polluted Soil information of point position, collection, analytical cycle are longer, and cost is higher, and limited amount, without representativeness, has with point The suspicion in general face.At present, some units also carry out the detection of pollutant using single geophysical prospecting method, but due to geophysical prospecting method Indirect and multi-solution, are limited to detection scene various disturbing factors that may be present, and the detection of single geophysical prospecting method may be deposited In certain error.
The content of the invention
The purpose of this utility model is based on comprehensive geophysical prospecting methods according to above-mentioned the deficiencies in the prior art there is provided a kind of Polluted Soil detects arrangement of measuring-line structure, and the detection arrangement of measuring-line structure is surveyed by using high-density resistivity survey line, resistivity CT Line and geological radar survey line collection Polluted area and its a variety of state properties in the uncontaminated region of surrounding, are realized in Polluted area The distribution of pollutant judges.
The utility model purpose is realized and completed by following technical scheme:
A kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods, for detecting the pollution in Polluted area Thing distribution situation, it is characterised in that:The detection arrangement of measuring-line structure includes some geology being arranged in the Polluted area Radar survey line, high-density resistivity survey line and resistivity CT surveys line, the end of the geological radar survey line, high-density resistivity The end of survey line and the end of the resistivity CT surveys line are extended in the uncontaminated region of the Polluted area periphery.
Each geological radar survey line is crisscross to distribute as net shape.
Individually be disposed with the geological radar survey line in the uncontaminated region of Polluted area periphery, it is described highly dense Spend resistivity survey line and the resistivity CT surveys line.
Each high-density resistivity survey line is crisscross to distribute as net shape.
The high-density resistivity survey line includes the cable of some detecting electrodes and each detecting electrode of connection, institute State detecting electrode to be vertically inserted in soil, the spacing between the adjacent detecting electrode is 0.2-2.0m.
Each resistivity CT surveys line are crisscross to distribute as net shape.
The resistivity CT surveys line include some detection holes being spaced apart along a straight line and are arranged at the detection hole In detecting electrode string, the detecting electrode string include some detecting electrodes for being vertically spaced apart and successively will it is each described in The cable of detecting electrode connection.
Spacing between the detecting electrode is 0.2-1.0m.
Pitch of holes between the detection hole is less than the 1/2 of the detection hole depth.
Each geological radar survey line, high-density resistivity survey line and resistivity CT surveys line are overlapped on plan-position.
Advantage of the present utility model is:Collection period is shorter, input cost is relatively low, operating efficiency greatly improved, and Collection result is combined synthetic determination for a variety of geophysical prospecting methods and obtained, and is presented with planar or body shape form, is compared to single Detection method, the testing result degree of accuracy is higher.
Brief description of the drawings
Fig. 1 detects arrangement of measuring-line structural representation for the Polluted Soil of the utility model comprehensive geophysical prospecting methods;
Fig. 2 is the high-density resistivity arrangement of measuring-line structural representation in the present embodiment;
Fig. 3 is the resistivity CT arrangement of measuring-line structural representations in the present embodiment;
Fig. 4 is the geological radar arrangement of measuring-line structural representation in the present embodiment.
Embodiment
The utility model feature and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, In order to the understanding of technical staff of the same trade:
As Figure 1-4, mark 1-7 is respectively in figure:High-density resistivity survey line 1, resistivity CT surveys line 2, geology thunder Up to survey line 3, detecting electrode 4, detection hole 5, uncontaminated region 6, Polluted area 7.
Embodiment:As Figure 1-4, the present embodiment is specifically related to a kind of Polluted Soil detection survey based on comprehensive geophysical prospecting methods Line arrangement, by the Polluted area 7 to be measured and high-density resistivity survey line 1, resistivity are arranged in peripheral uncontaminated region 6 CT surveys line 2 and geological radar survey line 3, judge the detection that Polluted Soil in Polluted area 7 is distributed so as to realize.Examined in the present embodiment The arrangement for surveying survey line is specific as follows:
First, the high-density resistivity survey line 1 in region to be measured
As shown in Figure 1-2, in Polluted area 7 to be measured arrangement high-density resistivity survey line 1, the knot of high-density resistivity survey line 1 Structure includes some detecting electrodes 4, cable, and each detecting electrode 4 connects and composes a high-density resistivity survey line by cable 1;In Polluted area 7 to be measured(In circle)Some high-density resistivity surveys line 1 are laid with crisscross lattice-shaped, and it is some The two ends of high-density resistivity survey line 1 are extended in the uncontaminated region 6 of periphery(Circle is outer);In uncontaminated area 6(Circle is outer)Arrangement Four high-density resistivity surveys line 1, to by the resistivity anomaly value of Polluted area 7 in resistivity measurement result can with it is uncontaminated The normal resistance rate background value in region 6 is compared, so as to judge the actual exact extension of Polluted area 7.
As shown in Fig. 2 the length of every high-density resistivity survey line 1 and the number of detecting electrode 4 are according in Polluted area 1 The precision for estimating depth and detection of pollutant distribution carry out choosing comprehensively determination, it is generally the case that detecting electrode away from for 0.2m-2.0m or so, meets that spacing between the requirement of detection accuracy, detecting electrode 4 is smaller, detection accuracy is higher, in detection Under conditions of the number of electrode 4 is certain, the length of high-density resistivity survey line 1 is longer, investigation depth is bigger, but precision is also lower. Generally, survey line length should be 6 times of pollutant depth or so.Pollutant distribution is estimated in the present embodiment in the 5 of soil Rice depth, the length of arrangement high-density resistivity survey line 1 is 30 meters, and from 60 detecting electrodes 4, electrode spacing is 0.5m.
The distance of soil to be measured is demarcated in this implementation process using tape measure, 60 detecting electrodes 4 are equidistantly inserted by 0.5m In the soil in the uncontaminated region 6 for entering Polluted area 7 and periphery, when needs are in the nothing in Polluted area 7 to be measured or uncontaminated region 6 In the area of soil domain arrange detecting electrode 4, then by outputed in without soil region corresponding hole site for insertion detecting electrode 4, or Person by neighbouring soil be placed on arrangement of measuring-line direction along for placing the insertion of detecting electrode 4, some detecting electrodes 4 insert Angle and depth in soil are consistent, and detecting electrode 4 is inserted perpendicularly into.
Before collecting work is carried out, the place that can be combined in detecting electrode 4 with soil pours into electrolyte, to increase leading for soil Electrical property, improves grounding requirement.
As shown in Fig. 2 after some high-density resistivity surveys line 1 are deployed, gathered data simultaneously carries out data processing, according to The operation of high-density resistivity acquisition instrument requires the resistivity number between each detecting electrode 4 on collection high-density resistivity survey line 1 According to after the data acquisition of one group of survey line 4 is complete, the number of remaining all high-density resistivity surveys line 1 is gathered in an identical manner According to;Above-mentioned collection result with planar form present, that is, express constituted respectively with every high-density resistivity survey line 1 it is corresponding The resistivity of the section of Polluted area 7, it is more representative, and if multiple sections intersect presence, such as the present embodiment figure simultaneously 1st, 2 crisscross lattice-shaped is shown, just some crossing sections can be combined analysis, so as to judge pollutant on ground Under distributed in three dimensions situation.
The resistivity data that high-density resistivity survey line 1 is collected obtains height after related software inversion procedure The resistivity profile in Polluted area 7 corresponding to the position of density resistance rate survey line 1, is explained point on this section Analysis.
2nd, the resistivity CT surveys line 2 in region to be measured
As shown in Figure 1, Figure 3, arrangement resistivity CT surveys line 2, the survey line structure includes some being spaced apart along a straight line Detection hole 5 and the detecting electrode string being arranged in detection hole 5, detecting electrode string include some detections being vertically spaced apart Electrode and the cable for successively connecting above-mentioned each detecting electrode;The detection hole 5 in the present embodiment to hand in length and breadth as described in Figure 3 Wrong lattice-shaped is arranged among Polluted area 7, keeps continuous alignment between each detection hole 5 on resistivity CT surveys line 2 as far as possible, And ensureing at least one end of resistivity CT surveys line 2, i.e., at least one detection hole 5 is arranged in uncontaminated region 6(Circle is outer), to incite somebody to action The resistivity anomaly value of Polluted area 7 and the normal resistance rate background value in uncontaminated region 6 are compared in test result, so that really Determine the actual exact extension of Polluted area 7.
The hole depth of each detection hole 6 need to be more than maximum investigation depth 5m estimated or so, the pitch of holes of detection hole 6 in this implementation The 1/2 of the depth of detection hole 6, and no more than 8m need to be less than;Across hole resistivity CT detecting electrode strings are respectively placed in adjacent two In detection hole 5, in detecting electrode string bottom counterweight to ensure that cable stretches vertically and naturally, the electrode spacing root in detecting electrode string According to the depth of detection hole 5 may be selected 0.2m, 0.5m or 1.0m, in the case that number of poles is certain in electrode array, electrode spacing it is big Small to be directly proportional to detection depth, the depth of detection is bigger, then electrode spacing is bigger.
Gather the data of above-mentioned resistivity CT surveys line 2 and carry out data processing, adjacent two are gathered by detecting electrode string Resistivity data between the hole of individual detection hole 5, after one group of data acquisition is finished, enters to remaining detection hole 5 in the same way Resistivity data is gathered between row hole, by the resistivity data collected after corresponding software is handled, as shown in figure 3, will be every Resistivity data is mutually stitched together to form one continuously between the hole for the detection hole 5 continuously arranged on bar resistivity CT surveys line 2 Resistivity profile, carries out interpretive analysis on this section.
3rd, the geological radar survey line 3 in region to be measured
As Figure 1 and Figure 4, arrangement geological radar survey line 3, as shown in figure 4, in Polluted area 7 to be measured(In circle)With vertical The wrong lattice-shaped of traversed by lays some geological radar surveys line 3, and the two ends of some geological radar surveys line 3 extend to periphery not dirt Contaminate in region 6, i.e., each geological radar survey line 4 corresponds with foregoing each high-density resistivity survey line 1 and overlaps setting;In addition, In uncontaminated area 6(Circle is outer)Four geological radar surveys line 4 are arranged, so as to by the electricity of Polluted area 7 in electromagnetic wave field test result Magnetic wave exceptional value can be compared with the normal electromagnetic wave field background value in uncontaminated region 6, so as to judge the reality of Polluted area 7 Exact extension.
The exploring antenna frequency of every geological radar method survey line 4 need to estimating according to the pollutant distribution in Polluted area 7 Depth and the precision of detection carry out choosing comprehensively determination, and antenna frequencies are higher, detection accuracy is higher, but investigation depth is more shallow, ground The exploring antenna frequency of matter radar method survey line 4 is lower, investigation depth is bigger, but precision is also lower.
When collecting work is carried out, acquisition mode need to be selected according to site contour situation, such as landform is flatter, can use car Continuity way is carried, such as hypsography is larger, then need the acquisition mode using point-to-point measurement, and carried out topographic survey, with Phase topographical correction after an action of the bowels.
The data that three of the above survey line is gathered carry out Treatment Analysis to the complex geophysical prospecting section of Polluted area 7 respectively, Distribution situation of the pollutant on different geophysical profiles is obtained, and carries out Comprehensive Comparison, so as to obtain more accurate dirt Contaminate three-dimensional spatial distribution situation under thing.

Claims (10)

1. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods, for detecting the pollutant in Polluted area Distribution situation, it is characterised in that:The detection arrangement of measuring-line structure includes some geology thunders being arranged in the Polluted area Up to survey line, high-density resistivity survey line and resistivity CT surveys line, the end of the geological radar survey line, high-density resistivity are surveyed The end of line and the end of the resistivity CT surveys line are extended in the uncontaminated region of the Polluted area periphery.
2. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 1, its feature It is:Each geological radar survey line is crisscross to distribute as net shape.
3. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 1, its feature It is:The geological radar survey line, the high density are individually disposed with the uncontaminated region of the Polluted area periphery Resistivity survey line and the resistivity CT surveys line.
4. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 1, its feature It is:Each high-density resistivity survey line is crisscross to distribute as net shape.
5. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 1 or 4, it is special Levy and be:The high-density resistivity survey line includes the cable of some detecting electrodes and each detecting electrode of connection, institute State detecting electrode to be vertically inserted in soil, the spacing between the adjacent detecting electrode is 0.2-2.0m.
6. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 1, its feature It is:Each resistivity CT surveys line are crisscross to distribute as net shape.
7. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 6, its feature It is:The resistivity CT surveys line include some detection holes being spaced apart along a straight line and are arranged in the detection hole Detecting electrode string, the detecting electrode string includes some detecting electrodes being vertically spaced apart and successively by each detection The cable of electrode connection.
8. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 7, its feature It is:Spacing between the detecting electrode is 0.2-1.0m.
9. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 7, its feature It is:Pitch of holes between the detection hole is less than the 1/2 of the detection hole depth.
10. a kind of Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods according to claim 1, its feature It is:Each geological radar survey line, high-density resistivity survey line and resistivity CT surveys line are overlapped on plan-position.
CN201621433655.9U 2016-12-26 2016-12-26 Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods Active CN206378448U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108287368A (en) * 2018-03-09 2018-07-17 上海岩土工程勘察设计研究院有限公司 Polluted Soil all standing detection method based on complex geophysical prospecting and its arrangement of measuring-line structure
CN109001822A (en) * 2018-06-15 2018-12-14 山东大学 Vehicle-mounted removable resistivity detection system and working method suitable for urban environment
CN109001839A (en) * 2018-06-15 2018-12-14 山东大学 A kind of vehicle-mounted Comprehensive Geophysics detection system in city and working method
CN111173518A (en) * 2020-01-07 2020-05-19 上海市基础工程集团有限公司 Method for detecting holes and water leakage in soil body reinforcing area of shield tunnel portal
CN115420778A (en) * 2022-09-02 2022-12-02 北京建工环境修复股份有限公司 Method and system for quickly investigating and positioning shallow soil pollution

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108287368A (en) * 2018-03-09 2018-07-17 上海岩土工程勘察设计研究院有限公司 Polluted Soil all standing detection method based on complex geophysical prospecting and its arrangement of measuring-line structure
CN109001822A (en) * 2018-06-15 2018-12-14 山东大学 Vehicle-mounted removable resistivity detection system and working method suitable for urban environment
CN109001839A (en) * 2018-06-15 2018-12-14 山东大学 A kind of vehicle-mounted Comprehensive Geophysics detection system in city and working method
CN111173518A (en) * 2020-01-07 2020-05-19 上海市基础工程集团有限公司 Method for detecting holes and water leakage in soil body reinforcing area of shield tunnel portal
CN115420778A (en) * 2022-09-02 2022-12-02 北京建工环境修复股份有限公司 Method and system for quickly investigating and positioning shallow soil pollution
CN115420778B (en) * 2022-09-02 2023-11-03 北京建工环境修复股份有限公司 Quick investigation and positioning method and system for shallow soil pollution

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