Rational Support Technology for Soft Coal Roadway in Difficult Geological Conditions

Aiming at the bad supporting effect of erecting shed support in soft coal centralized track roadway under the difficult geological conditions, the deformation and failure mechanism of the centralized track roadway is analyzed by using field observation, numerical simulation and theory analysis, then the supporting countermeasures of the centralized roadway are put forward, combined support technology of“cable anchor,guniting and high-water rapid hardening materials grouting”is determined, and the roadway supporting process and parameters are determined.