Western thick and closely spaced coal seams--geological factors that affect their development.
Soc Min Eng AIME Preprint 87-40 1987; :1-7
This paper describes a study of the feasibility of introducing three longwall mining methods--high-face, multislice, and caving--into western coal operations. Geological factors affecting the development of these methods (thickness and three-dimensional configuration of the seam; cleats, joints, and fractures in the coal and roof rock; and coal quality and changes in quality within the seam) are discussed, and the specific applicability of the three proposed longwall mining methods are outlined.
Soc. Min. Eng. AIME Preprint 87-40, 1987, 7 PP.