Fractured-Laminar Structure of Formations and Methods of Coal Loosening

Autor: Gabov, Viktor V., Zadkov, Denis A., Kuzkin, Andrey Yu., Elikhin, Aleksandr S.
Zdroj: Key Engineering Materials; April 2020, Vol. 836 Issue: 1 p90-96, 7p
Abstrakt: The paper analyzes the structure of coal beds. It is noted that coal beds belong to laminar massifs with characteristic oriented structure and pronounced anisotropy of strength properties, and include rock layers and consolidated hard inclusions. The quality criteria of the coal loosening process are highlighted. A selective method of separating coal from a massif by cutting along weakened surfaces is proposed as an alternative to the existing combine technology with continuous cutting of a massif from the surface.
Databáze: Supplemental Index