DefinePK

Abstract

The objective of the research is choosing and finding rational parameters of preparation and development of multiple seams of coal under the conditions of their cross-impact. Categories of adjacent seams interaction and their specifics were considered. Examples of wrongful and good impact of adjacent seams development were shown. Adjacent seams interactions being especially complex and with severe consequences were specified. The need to take into account the cross-impact of adjacent seams during mining high gas-bearing formations of seams was noted, as de-stressed zones creation causes high increase of gas permeability of the rock mass and growing methane release into workings from the stripped areas. The analysis was made of the research results on adjacent seams interaction during coal seams development in the USA made by the National Institute for Occupational Safety and Health. The reasons for adjacent seams mining difficulty were shown. Upon the analysis of Russian and foreign experience of adjacent seams development, the conclusions were made on the level of impact of various mining geological and mining engineering factors, and recommendations were given on mining planning and choosing mine workings location. Further research directions were determined, required to improve efficiency and safety of mining in the course of adjacent seams development.