Solov'ev V. A., Aptukov V. N., Tarasov V. V. – Ural Research and Development Institute of Halurgy (Galurgia JSC),
Perm, the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Kotliar E. K. – Uralkali PJSC, Berezniki, Perm region, the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
General facts are introduced about the support state in mine shafts intersections with adjoining mine workings in saliferous
rocks in the process of their exploitation in mines of Verkhnekamskoye deposit of potassium salts. The directions of
intersections protection are examined at the stage of design and construction of mining enterprises with the choice of
mine shafts site and dimensional layout drawings of neighboring workings of shaft bottom (dosing chambers, loading and
ventilation workings) with their parameters estimation. With the use of licensed ANSYS software mathematical modeling
of different variants of adjoining mine workings arrangement and parameters is fulfilled. The character of temporal
changing of the quantity of support pressure and hoop stress in concrete support of intersections is determined. It is
stated that the most acceptable variant of intersections support is one-level arrangement of dosing chambers and the
presence of a yielding layer in intersections support with rating 0.3–0.4 m, made of foam polystyrenes of “Penoplex Roof”
type (“Penoplex-35”). Engineering solutions examined and recommended are implemented in construction plans of nine
mine shafts at Verkhnekamskoye deposit of potassium salts.
Key words: saliferous rocks; mine shafts; mine shafts intersections; three-layer support; yielding layer.
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