CREATION OF NON-TRADITIONAL PROCESSES FOR EFFECTIVE AND SAFE EXPLOITATION OF THIN STEEP SEAMS

There the spread mechanisms of polymeric solution within the porous-jointy coal seam have been ascertained; the rise of uniformity of strength properties of coal seam after the physico-chemical treatment has been showed; the determination technique of effective radius of seam mining has been developed; the progressive schemes of development of suites of steep seams have been substantiated. The variables of physico-chemical hydrodynamical action on the coal solid have been ascertained; the flow schemes of polymeric strengthening of seams, the variables of hydropulse action on the solid, the new manners to keep the underground workings have been developed. The strengthening of overhanging solid with the polymeric solution (1700 linear metres), the opening of seam with the use of non-traditional methods (116 times), the guard process of workings (1120 linear metres), the workings in the zones of action (1905 linear metres) are introduced. The application fields are the steep and medium-steep coal seams which are susceptible to the sudden outbursts of coal and gas, to the sudden caving as well as the development workings made in the instable rocksAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio