Author(s): GU Quan-zhong, ZHOU Guang-hua
Pages: 1-3,59
Year: 2015 Issue:  2
Journal: Coal Mining Technology
Keyword:  long-wall mining; supporting software; anchored-bolt supporting; auxiliary supporting; dismantlement cavern;
Abstract: This paper introduced general situation of long-wall mining, evaluation software of mine supporting, roadway supporting, key point of anchored-bolt supporting and application of dismantlement cavern in long-wall mining face. mine supporting software includ-ed coal-pillar design and its stability evaluation, influence of multi-coalseam mining, anchored-bolt supporting evaluation, supporting design and evaluation, and roof classification. In roadway supporting, anchored force per unit length, and auxiliary and pillar support-ing widely used in U. S. under complex geological condition. Application of dismantlement cavern in long-wall mining improved disman-tlement speed and extended utilization of inorganic powder.