North-Eastern Federal University named after M. K. Ammosov (Yakutsk, Russia):

Solovev E. E., Head of a Chair, Candidate of Geological and Mineralogical Sciences, e-mail: solov.evg@yandex.ru

Fridovskiy V. Yu., Prorector for the Engineering Area, Professor, Doctor of Geological and Mineralogical Sciences, e-mail: 710933@list.ru

Adarov T. D., Post-graduate Student, e-mail: atdsakha@rambler.ru

Kychkin V. A., Post-graduate Student, e-mail: v.a.kychkin_14@mail.ru

«Yakutniproalmaz» Institute (Mirnyy, Russia):

Dolgikh S. N., Head of Department, Chief Project Engineer, Candidate of Engineering Sciences, e-mail: DolgikhSN@alrosa.ru

Exploitation of hydrotechnical constructions in the Far North has the certain peculiarities, which are determined by the extreme climatic conditions and cryogenic processes. In order to prevent the emergency situations at tailing dumps, it is necessary to carry out the following operations:
-monitoring of the physical state and position of the boundaries of permafrost rocks;
-monitoring of the presence and dynamics of the filtration flow. Geophysical inspection methods of the safe exploitation of hydrotechnical constructions have a high efficiency of information obtaining about the physical state of the researched environment, and make it possible to forecast the potentially dangerous processes.
The methods of pulsed electrical exploration were applied, taking into account the characteristics of cryogenic and hydrogeological structure of the object, and sub-horizontal bedding of the resistivity contrasting rocks. The dipole-axial installation was selected from the research methods of the geoelectric section on the direct current. The electrical profiling measurements made it possible to establish the linear anomaly of low values of apparent resistivity, which corresponds to the filtration zone of mineralized waters. The frozen soils and talik zones were defined in the geoelectric sections, according to the data of dipole-axial and transient-electromagnetic probing. There was observed the qualitative correlation of thermo- and electrometry data. There was established the talik zone migration, which indicates the presence of hidden filtration flow at a considerable depth, in the right side of a bund wall.

This research work was held with the financial support of the Ministry of Education and Science of Russian Federation, within the project No. 2010-218-01-001 “Creation of complex innovation environmentally safe technology of extraction and processing of diamondiferous ores in the Far North”, which is being held with the participation of North-Eastern Federal University named after M. K. Ammosov and “ALROSA” JSC.

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