Mayat placer, Almazy Anabara, Yakutsk, Russia:

S. P. Nikolaev, Head of Drilling and Blasting

Ammosov North-Eastern federal University, Yakutsk, Russia:
B. N. Zarovnyaev, Director of the Mining Institute, Doctor of Engineering Sciences, mine_academy@mail.ru

Chersky Institute of Mining of the North, Siberian Branch. Russian Academy of Sciences, Yakutsk, Russia:
L. L. Fedorova, Leading researcher, Candidate of Engineering Sciences
G. A. Kulyandin, Junior Researcher

The Far Eastern Federal District has enormous natural resources. In the region, 95% of Russia’s diamonds and considerable part of gold is produced. Mining in the region is complicated by permafrost, difficult geological conditions and complex structure of rock mass. Mining operations in permafrost sediments requires preliminary drilling and blasting. The extensive research aimed to improve drilling and blasting technology in complex-structure rock masses disregards features of permafrost, presence of thaw zones, ice and other hydrogeological phenomena of frozen ground. In order to reveal the frozen ground hydrogeology, the authors propose to carry out GPR studies of complex-structure rock masses with a view to selecting rational design of drilling and blasting. This will ensure the required quality of rock fragmentation by blasting.
The authors are grateful to Associate Professor, Candidate of Engineering Sciences G. V. Shubin, Head of Laboratory M. P. Sobakina and Assistant M. E. Budikina from the Ammosov North-Eastern Federal University fort the participation in these studies.

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