One year ago, Deilmann-Haniel Schachtostroj started sinking the 1st shaft at Uralkali’s Ust-Jaiwa mine in Beresniki, Russia.
The geological and hydro-geological conditions required to sink the first 245 m of the shaft by protection of a freeze wall. Shaft sinking in this water-bearing soil conditions claims this special procedure which is so far the only safe method to excavate to significant depths. In its 127-year history, Deilmann-Haniel built more than 190 freeze shafts and has been a significant driving force in developing freeze shaft technology.
Shaft sinking up to the freeze shaft level of 245 m, and exploration and injection works were completed successfully at Ust Jaiwa potash mine. The shaft No. 2 is at a depth of 230 m and reaches the freeze shaft level within a short time.
This was a pleasant situation which induced also our client ‘Uralkali’ to inform the public.
More details about the project: here
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