Authors: D.G. Sokol

Title of the article: Principal directions of the development of mining methods for potash seams

Year: 2018, Issue: 4, Pages: 93-98

Branch of knowledge: Earth sciences

Index UDK: 622.272.6

DOI: 10.26730/1999-4125-2018-4-93-98

Abstract: The article shows main directions of the development of the mining industry at the Starobinskoe potassium deposit and the factors which promote the possible causes of the propagation of water-conducting fractures in the waterproof rock strata between the underground mining workings and waterbearing stratum. It shows the absence of factors constraining the large-scale implementation of technological schemes with selective mining. It describes the main drawbacks of the current technological scheme with pillarless selective mining of the Third potash seam which involves reuse of two workings of adjacent longwall. A future-proof technological scheme with pillarless selective mining for layers 2, 2-3, 3 of the Third potash seam with the goave packing has been proposed; whereby the preliminary development is carried out by haulage and belt roadways through the use of service roadway, while the haulage roadway is passed from the side of the rock mass, leaving a tem-porary protective pillar, which is later extracted by a shearer of adjacent longwall. This technological scheme implies the reuse of the haulage roadway of the adjacent longwall as an air or stowage working; it also implies goave packing of service roadways.

Key words: potash deposits underground mines mining method risk reduction of potash mines flooding

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