困难地质条件下软煤巷道合理支护技术

Rational Support Technology for Soft Coal Roadway in Difficult Geological Conditions

针对山浪煤矿困难地质条件下软煤集中轨道巷架棚支护效果差的问题,运用现场实测、数值模拟和理论分析相结合的方法,研究了困难地质条件下软煤集中轨道巷变形破坏的机理,提出了困难地质条件下软煤集中轨道巷的支护对策,确定采用"锚网索+喷浆+高水速凝材料注浆"联合支护技术,并分析确定了联合支护的参数和工艺。

Aiming at the bad supporting eftect of erecting shed support m suit coal centralized track roaclway unUer me difficult geolog-ical conditions, the deformation and failure mechanism of the centralized track roadway is analyzed by using field observation, numeri-cal 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.