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Geoinformatika 2015; 4(56) : 29-34 (in Russian)

INTERPRETATION OF GEOELECTRIC DATA USING PROBABILISTIC AND STATISTICAL CHARACTERISTICS IN SOLVING ENGINEERING-GEOLOGICAL  PROBLEMS

L.A. Hristenko, Y.I. Stepanov

Mining Institute of the Ural Branch of the Russian Academy of Sciences, 78а Sibirskaya Str., Perm 614007,
Russian Federation, e-mail: liudmila.hristenko@yandex.ru

Purpose. The purpose of the article is to study the possibility of applying the theory of assessments and methods of no-standard classifications to localize areas of possible geotechnical complications in interpreting electric methods of horizontal profiling (self-potential and resistance with a symmetric configuration of the electrodes).
Design/methodology/approach. For self-potential and apparent resistances (ra) statistical characteristics  were calculated, which were used as additional data at interpretation. Calculations were carried out by a program complex of the spectral and correlation analysis of “KOSKAD 3D” data. The complex is an effective computer technology of processing geologic-geophysical data. The “KOSKAD 3D” includes algorithms of probabilistic and statistical analysis and splitting of the analyzed square into uniform areas (classes). SP, ra and their statistics were united in a uniform space, its structure being analyzed by means of methods of no- standard classifications.
Findings. The results obtained in classification of geophysical parameters and their statistical characteristics allowed us to localize a number of zones of engineering-geological complications on sites of the railroad located within the developed space of a subsoil of the Verkhnekamsky salts field (Ural, Russia).
Practical value/implications. Statistical characteristics of geoelectric parameters and methods of classification of multidimensional data on formal grounds help to increase reliability of allocating of zones of engineering-geological complications.

Keywords: field of self-potential, apparent resistivity, statistical characteristics, classes, engineering-geological complications.

  The full text of papers

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