CN101614828A - Automatically the method for determining of high-density electric dykes and dams position of exploration cavity - Google Patents
Automatically the method for determining of high-density electric dykes and dams position of exploration cavity Download PDFInfo
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- CN101614828A CN101614828A CN200910054813A CN200910054813A CN101614828A CN 101614828 A CN101614828 A CN 101614828A CN 200910054813 A CN200910054813 A CN 200910054813A CN 200910054813 A CN200910054813 A CN 200910054813A CN 101614828 A CN101614828 A CN 101614828A
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Abstract
The present invention relates to a kind of method of determining automatically of high-density electric dykes and dams position of exploration cavity.High-density electric apparent resistivity sectional drawing that the high-density electric survey data that its utilization is gathered obtains and the apparent resistivity index slip information that shows apparent resistivity, extract and the corresponding apparent resistivity index slip of dykes and dams cavity apparent resistivity half-tone information, seek whether there is the zone that is complementary with dykes and dams cavity apparent resistivity index slip half-tone information; Judge whether dykes and dams exist the cavity, and definite cavity position.The present invention can overcome present artificial judgment, and the not only consuming time but also deficiency that influenced by human factor determines automatically whether dykes and dams exist cavity and positional information thereof simply, apace.
Description
Technical field
The present invention relates to a kind of method of determining automatically of high-density electric dykes and dams position of exploration cavity, distinctly with current methods be, this method is utilized the apparent resistivity sectional drawing that the high-density electric measured data obtains and is shown the apparent resistivity index slip information of apparent resistivity, automatically determine whether dykes and dams exist cavity and position thereof, belong to the intelligent information processing technology field.
Background technology
Along with the develop rapidly of national economy, administer as the dykes and dams of the main barrier of defending flood and storm tide and more and more to cause people's great attention.The reason that causes the dykes and dams geologic hazard is varied, below the subsideing of sloping body landing, slump, goaf, ground crack, shatter belt, solution cavity, dyke (dam), washed in a pan sky etc. by seawater, these hidden danger bring very big influence, even injure personal safety for people's production, life.This just requires the stability of dykes and dams abnormal area, position, scope, border etc. are reconnoitred and estimated, and in time according to evaluation result, formulates feasible program.Development along with geophysical exploration technology, high-density electric is low with its production cost, characteristics such as work efficiency height, based on the electrical property difference between detected target body and the surrounding medium, analyze dykes and dams ground electrical information, declare knowledge and whether have hidden danger such as cave or crack, in engineering geological survey, the dam foundation and bridge pier addressing, the goaf, numerous engineering investigations such as detection of hidden troubles in dams field, obtain tangible geologic prospecting effect and significant social economic benefit, and surveyed underground structure, seek metal and nonmetallic minerals, archaeology and hydrological engineering geology aspect have obtained widespread use.Though the process software of many moneys high-density electric has been arranged at present both at home and abroad, but, the function of these softwares only is with the imaging of high-density electric measurement data, these images are not further explained, more do not determine abnormal area and out-of-the way position thereof automatically, definite employing of abnormal area is artificial to be analyzed and judgement, and time-consuming, effort is influenced greatly by main body knowledge and human factor.
Summary of the invention
The objective of the invention is to determine automatically at existing method whether dykes and dams exist cavity and position thereof, a kind of method of determining automatically of high-density electric dykes and dams position of exploration cavity is provided.
For achieving the above object, design of the present invention is: have different electric conductivities according to different medium, when the dykes and dams quality evenly, do not have cavity, soil property all for the moment, the apparent resistivity isoline in the apparent resistivity sectional drawing is evenly distributed; When having above-mentioned hidden danger, the apparent resistivity isoline is closed circle, graded is big.Therefore judge that whether dykes and dams exist the cavity, can be converted in the apparent resistivity sectional drawing and seek the corresponding region.In the apparent resistivity sectional drawing, therefore the apparent resistivity size that different colours (or gray scale) region representation is different, according to apparent resistivity sectional drawing colouring information, can determine automatically whether dykes and dams exist cavity and position thereof.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of method of determining automatically of high-density electric dykes and dams position of exploration cavity, it is characterized in that utilizing the high-density electric survey data of collection, obtain the apparent resistivity index slip information of high-density electric apparent resistivity sectional drawing and demonstration apparent resistivity, extract and the corresponding index slip half-tone information of dykes and dams cavity apparent resistivity, whether seek the zone that is complementary with dykes and dams cavity apparent resistivity index slip half-tone information, judge whether dykes and dams exist cavity and definite cavity position.
Above-mentioned steps (1) reads the high-density electric measured data, and the concrete steps of obtaining apparent resistivity sectional drawing and apparent resistivity index slip thereof are as follows:
1) it is average two adjacent data section laps to be carried out data, and along profile direction do 53 times level and smooth;
2) adopt the linear fit mode to carry out data interpolating, form the partial data section, overcome incomplete linking of two adjacent data sections in the real work and the deficiency of formation data vacancy;
3) adopt smooth filtering method, reject the false point in the data section, overcome because of reasons such as electrode loose contact or other interference cause the data section falseness to occur and put or catastrophe point, cause the sectional falseness of apparent resistivity unusual;
4) adopt the apparent resistivity ratioing technigue, overcome because of topographic relief causes detection of a target apparent resistivity abnormal morphology and position the influence of distortion and displacement takes place with landform;
5) adopt apparent resistivity grade sectional view or apparent resistivity inversion imaging method to carry out the apparent resistivity cross-sectional imaging;
A) apparent resistivity grade profiles: in specifying section, utilize the measured data result after the above-mentioned steps,, be divided into 17 different brackets according to the size of apparent resistivity value; Observation device when working according to high-density electric is drawn the apparent resistivity sectional drawing; According to the apparent resistivity value of 17 different brackets, draw corresponding apparent resistivity index slip;
B) apparent resistivity inversion imaging method: will survey hatch region and be considered as being constituted by 17 different brackets and apparent resistivity value rectangular block by constant, adopt the least square method under the level and smooth qualifications, by iteration nonlinear optimization method, determine the apparent resistivity value of each rectangular block; According to the apparent resistivity value of 17 different brackets, draw corresponding apparent resistivity index slip.
The concrete steps of the index slip half-tone information of the corresponding dykes and dams of above-mentioned steps (2) extraction cavity apparent resistivity are as follows:
1) the apparent resistivity sectional drawing is carried out rim detection, less than the sectional rectangle frame of apparent resistivity, determine apparent resistivity index slip position according to the rectangle frame of apparent resistivity index slip;
2), determine the bar shaped frame of 17 different brackets apparent resistivities according to apparent resistivity index slip position;
3) according to the size of dykes and dams cavity apparent resistivity value, utilize 17 grade apparent resistivity values being divided, determine bar shaped frame position corresponding and corresponding index slip half-tone information thereof with dykes and dams cavity apparent resistivity.
Above-mentioned steps (3) judges whether dykes and dams exist the cavity and determine that the concrete steps of dykes and dams cavity position are as follows:
1) the apparent resistivity sectional drawing is carried out rim detection,, determine apparent resistivity sectional drawing position according to the rectangle frame of the sectional rectangle frame of apparent resistivity greater than the apparent resistivity index slip;
2) utilize the index slip half-tone information of the dykes and dams cavity apparent resistivity that step (2) extracts, in the apparent resistivity sectional drawing, seek whether to exist the zone consistent with the index slip half-tone information of this apparent resistivity;
3) if there is above-mentioned zone, then this zone is defined as the dykes and dams hole region, shows that there is the cavity in dykes and dams; Otherwise dykes and dams do not have the cavity;
4) the dykes and dams hole region is carried out connected component analysis, determine left and right, the upper and lower bounds of each connected region, this bounds is the positional information in corresponding dykes and dams cavity.
The present invention compared with prior art, have following conspicuous outstanding substantive distinguishing features and remarkable advantage: have different electric conductivities according to different medium, if there is the cavity in dykes and dams, then it can directly be reflected in the apparent resistivity sectional drawing, therefore judge that whether dykes and dams exist the cavity, can be converted in the apparent resistivity sectional drawing and seek respective regions; In the apparent resistivity sectional drawing, therefore the apparent resistivity size that different colours (or gray scale) region representation is different, according to apparent resistivity sectional drawing colouring information, can determine automatically whether dykes and dams exist cavity and position thereof; Overcome present artificial judgment, the not only consuming time but also deficiency that influenced by human factor determines automatically whether dykes and dams exist cavity and positional information thereof simply, apace.
Description of drawings
Fig. 1 is the flowsheet of the inventive method.
Fig. 2 is the high-density electric dykes and dams measured data apparent resistivity sectional drawing of one embodiment of the invention.
Fig. 3 is that the dykes and dams hole region of one embodiment of the invention is extracted displayed map as a result.
Embodiment
One embodiment of the present of invention are that the apparent resistivity sectional drawing (Fig. 2) that high-density electric exploration dykes and dams measured data is handled after editing carries out determining automatically of dykes and dams cavity position.
Referring to Fig. 2, automatically the method for determining of this high-density electric dykes and dams position of exploration cavity, it is characterized in that utilizing the high-density electric survey data of collection, obtain the apparent resistivity index slip information of high-density electric apparent resistivity sectional drawing and demonstration apparent resistivity, extract and the corresponding index slip half-tone information of dykes and dams cavity apparent resistivity, whether seek the zone that is complementary with dykes and dams cavity apparent resistivity index slip half-tone information, judge whether dykes and dams exist cavity and definite cavity position; Its operation steps is as follows:
(1) read the high-density electric measured data, obtain apparent resistivity sectional drawing and apparent resistivity index slip thereof: read the high-density electric measured data, measured data is handled editor, obtain apparent resistivity sectional drawing and apparent resistivity index slip thereof, its concrete steps are as follows:
1) it is average two adjacent data section laps to be carried out data, and along profile direction do 53 times level and smooth;
2) adopt the linear fit mode to carry out data interpolating, form the partial data section, overcome incomplete linking of two adjacent data sections in the real work and the deficiency of formation data vacancy;
3) adopt smooth filtering method, reject the false point in the data section, overcome because of reasons such as electrode loose contact or other interference cause the data section falseness to occur and put or catastrophe point, cause the sectional falseness of apparent resistivity unusual;
4) adopt the apparent resistivity ratioing technigue, overcome because of topographic relief causes detection of a target apparent resistivity abnormal morphology and position the influence of distortion and displacement takes place with landform;
5) adopt apparent resistivity grade sectional view or apparent resistivity inversion imaging method to carry out the apparent resistivity cross-sectional imaging;
A) apparent resistivity grade profiles: in specifying section, utilize the measured data result after the above-mentioned steps,, be divided into 17 different brackets according to the size of apparent resistivity value; Observation device when working according to high-density electric is drawn the apparent resistivity sectional drawing; According to the apparent resistivity value of 17 different brackets, draw corresponding apparent resistivity index slip;
B) apparent resistivity inversion imaging method: will survey hatch region and be considered as being constituted by 17 different brackets and apparent resistivity value rectangular block by constant, adopt the least square method under the level and smooth qualifications, by iteration nonlinear optimization method, determine the apparent resistivity value of each rectangular block; According to the apparent resistivity value of 17 different brackets, draw corresponding apparent resistivity index slip.
(2) the index slip half-tone information of the corresponding dykes and dams of extraction cavity apparent resistivity: according to apparent resistivity reflection dykes and dams stratum different medium electric conductivity, in the sectional apparent resistivity index slip of apparent resistivity, determine and the corresponding apparent resistivity index slip half-tone information of dykes and dams cavity apparent resistivity; Concrete steps are as follows:
1) the apparent resistivity sectional drawing is carried out rim detection, less than the sectional rectangle frame of apparent resistivity, determine apparent resistivity index slip position according to the rectangle frame of apparent resistivity index slip;
2), determine the bar shaped frame of 17 different brackets apparent resistivities according to apparent resistivity index slip position;
3) according to the size of dykes and dams cavity apparent resistivity value, utilize 17 grade apparent resistivity values being divided, determine bar shaped frame position corresponding and corresponding index slip half-tone information thereof with dykes and dams cavity apparent resistivity.
(3) judge whether dykes and dams exist the cavity and determine the dykes and dams cavity position, and concrete steps are as follows:
1) the apparent resistivity sectional drawing is carried out rim detection,, determine apparent resistivity sectional drawing position according to the rectangle frame of the sectional rectangle frame of apparent resistivity greater than the apparent resistivity index slip;
2) utilize the index slip half-tone information of the dykes and dams cavity apparent resistivity that step (2) extracts, in the apparent resistivity sectional drawing, seek whether to exist the zone consistent with the index slip half-tone information of this apparent resistivity;
3) if there is above-mentioned zone, then this zone is defined as the dykes and dams hole region, shows that there is the cavity in dykes and dams; Otherwise dykes and dams do not have the cavity;
4) the dykes and dams hole region is carried out connected component analysis, determine left and right, the upper and lower bounds of each connected region, this bounds is the positional information in corresponding dykes and dams cavity.
Fig. 3 extracts the result for the dykes and dams hole region, and the figure Oxford gray is dykes and dams hole region border with the light grey greyish white colo(u)r streak that has a common boundary, and the figure below is a dykes and dams cavity position information.
Claims (4)
1. the method for automatically determining of a high-density electric dykes and dams position of exploration cavity, it is characterized in that utilizing the high-density electric survey data of collection, obtain the apparent resistivity index slip information of high-density electric apparent resistivity sectional drawing and demonstration apparent resistivity, extract and the corresponding index slip half-tone information of dykes and dams cavity apparent resistivity, whether seek the zone that is complementary with dykes and dams cavity apparent resistivity index slip half-tone information, judge whether dykes and dams exist cavity and definite cavity position; Its operation steps is as follows:
(1) reads the high-density electric measured data, obtain apparent resistivity sectional drawing and apparent resistivity index slip thereof;
(2) the index slip half-tone information of the corresponding dykes and dams of extraction cavity apparent resistivity;
(3) judge whether dykes and dams exist the cavity and determine the dykes and dams cavity position.
2. the method for determining automatically of high-density electric dykes and dams position of exploration cavity according to claim 1, it is characterized in that described step (1) reads the high-density electric measured data, obtain the apparent resistivity sectional drawing and show that the concrete steps of apparent resistivity index slip of apparent resistivity are as follows:
1) it is average two adjacent data section laps to be carried out data, and along profile direction do 53 times level and smooth;
2) adopt the linear fit mode to carry out data interpolating, form the partial data section, overcome incomplete linking of two adjacent data sections in the real work and the deficiency of formation data vacancy;
3) adopt smooth filtering method, reject the false point in the data section, overcome because of reasons such as electrode loose contact or other interference cause the data section falseness to occur and put or catastrophe point, cause the sectional falseness of apparent resistivity unusual;
4) adopt the apparent resistivity ratioing technigue, overcome because of topographic relief causes detection of a target apparent resistivity abnormal morphology and position the influence of distortion and displacement takes place with landform;
5) adopt apparent resistivity grade sectional view or apparent resistivity inversion imaging method to carry out the apparent resistivity cross-sectional imaging;
A) apparent resistivity grade profiles: in specifying section, utilize the measured data result after the above-mentioned steps,, be divided into 17 different brackets according to the size of apparent resistivity value; Observation device when working according to high-density electric is drawn the apparent resistivity sectional drawing; According to the apparent resistivity value of 17 different brackets, draw corresponding apparent resistivity index slip;
B) apparent resistivity inversion imaging method: will survey hatch region and be considered as being constituted by 17 different brackets and apparent resistivity value rectangular block by constant, adopt the least square method under the level and smooth qualifications, by iteration nonlinear optimization method, determine the apparent resistivity value of each rectangular block; According to the apparent resistivity value of 17 different brackets, draw corresponding apparent resistivity index slip.
3. the method for automatically determining of high-density electric dykes and dams position of exploration cavity according to claim 1, it is as follows to it is characterized in that described step (2) is extracted the concrete steps of index slip half-tone information of corresponding dykes and dams cavity apparent resistivity:
1) the apparent resistivity sectional drawing is carried out rim detection, less than the sectional rectangle frame of apparent resistivity, determine apparent resistivity index slip position according to the rectangle frame of apparent resistivity index slip;
2), determine the bar shaped frame of 17 different brackets apparent resistivities according to apparent resistivity index slip position;
3) according to the size of dykes and dams cavity apparent resistivity value, utilize 17 grade apparent resistivity values being divided, determine bar shaped frame position corresponding and corresponding index slip half-tone information thereof with dykes and dams cavity apparent resistivity.
4. the method for determining automatically of high-density electric dykes and dams position of exploration cavity according to claim 1 is characterized in that described step (3) judges whether dykes and dams exist the cavity and determine that the concrete steps of dykes and dams cavity position are as follows:
1) the apparent resistivity sectional drawing is carried out rim detection,, determine apparent resistivity sectional drawing position according to the rectangle frame of the sectional rectangle frame of apparent resistivity greater than the apparent resistivity index slip;
2) utilize the index slip half-tone information of the dykes and dams cavity apparent resistivity that step (2) extracts, in the apparent resistivity sectional drawing, seek whether to exist the zone consistent with the index slip half-tone information of this apparent resistivity;
3) if there is above-mentioned zone, then this zone is defined as the dykes and dams hole region, shows that there is the cavity in dykes and dams; Otherwise dykes and dams do not have the cavity;
4) the dykes and dams hole region is carried out connected component analysis, determine left and right, the upper and lower bounds of each connected region, this bounds is the positional information in corresponding dykes and dams cavity.
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| CN2009100548138A CN101614828B (en) | 2009-07-15 | 2009-07-15 | Automatic confirmation method for probing cavity position in dam by high density electrical method |
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| CN105467461A (en) * | 2015-12-01 | 2016-04-06 | 长江地球物理探测（武汉）有限公司 | Method for recognizing geological anomalous body through employing two-dimensional apparent resistivity data |
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| CN105467461A (en) * | 2015-12-01 | 2016-04-06 | 长江地球物理探测（武汉）有限公司 | Method for recognizing geological anomalous body through employing two-dimensional apparent resistivity data |
| CN105467461B (en) * | 2015-12-01 | 2017-11-17 | 长江地球物理探测（武汉）有限公司 | A kind of method that geological anomalous body is identified using two-dimentional apparent resistivity data |
| CN107255837A (en) * | 2017-07-14 | 2017-10-17 | 贵州省地质调查院 | A kind of two dimensional terrain forward modeling and correcting method |
| CN110297015A (en) * | 2018-03-22 | 2019-10-01 | 中国石油化工股份有限公司 | A kind of beach sea sea wall defect inspection method based on high density resistivity prospecting technology |
| CN109782357A (en) * | 2019-02-18 | 2019-05-21 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of method of ground Pumping Magnetic Resonance Method and high-density electric combined detection dam leakage |
| CN111522066A (en) * | 2020-05-08 | 2020-08-11 | 上海应用技术大学 | Pile body quality electrical method detection method |
| CN112462432A (en) * | 2020-11-16 | 2021-03-09 | 新疆维吾尔自治区煤田灭火工程局 | High-precision detection method and device for coal field fire area cavity |
| CN112462432B (en) * | 2020-11-16 | 2024-02-02 | 新疆维吾尔自治区煤田灭火工程局 | High-precision detection method and device for fire area cavity of coal field |
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