Fundamental Research on Coal Cutting

Abstract

For the purpose of determining the workability of coal face underground, the authors have carried out fundamental experiments on coal cutting in the laboratory. In this report, the authors are going to describe the relations between the cutting resistance and cutting conditions, i.e., depth of cut, bit angle, cutting speed, bit wear, and physical properties of coal. From these experimental results, the authors learned that the magnitude of cutting resistance of coal cutter or coal planer at the coal face underground could be generally anticipated.