Abstract:

Calculation, selection and application of fully-mechanised longwall technology for underground mining to increase productivity, reduce coal resource loss and achieve high economical efficiency is one of the basic orientations in the development of Vietnam coal industry. This paper presents an investigation of geotechnical conditions at Khe Cham coal mine, from which an appropriate set of the fully-mechanised equipment has been calculated for the extraction of thick coal seams at the mine. The results calculated based on technical parameters of existing equipment including ZFY4000-14/28 face support, MG160/380-WDK shearer and SGZ 630/264 conveyor show that the equipment corresponds well to the geo-mining conditions of Seam 13-1, Khe Cham coal mine, satisfying a scheduled production of 400,000 tonnes per year