A. M. Yannikov, I. A. Karateev (PJSC «ALROSA»)

CHANGES IN CRYO-HYDROGEOLOGICAL CONDITIONS OF THE QUARRY FIELD OF THE YUBILEINAYA KIMBERLITE PIPE (NORTHERN YAKUTIA)

In 2021, new areas of areal and local water sources were recorded on the northern side of the Yubileinaya pipe quarry (Northern Yakutia). In winter, these areas formed thin areal ice, which negatively affects the stability of the quarry sides. During the opencast mining of the quarry, a number of natural and man-made factors encouraged the formation of a suprapermafrost non-through natural and man-made talik of fresh water genetically related to the waters of the seasonally thawed layer. The recorded changes in the cryo-hydrogeological conditions of the quarry field require a set of anti-icing measures including controlled water drainage to ensure safe operation of the deposit.

Keywords: Alakit-Markha kimberlite field, Yubileinaya pipe, permafrost, fresh water, ice, suprapermafrost taliks