Sustainability heterogeneous heterogeneous goals

Abstract

In the mines of the Baltic oil shale basin, extensive industrial tests of different variants of the chamber mining system have been carried out for several years. In order to correctly determine the parameters of the system, the manifestation of mining pressure was studied at the mine No. 3 of the Slantsy Combine, in particular, the stability of the pillars was investigated. The industrial oil shale bed with a total thickness of 2 -3 m is almost horizontal at a depth of 30-100 m in the conditions of the basin and consists of four layers of oil shale and three rock layers. In the roof and soil of the formation, limestones are interbedded with clay and oil shale.