深井大断面井筒壁间注浆加固技术研究

Study on grouting reinforcement technology of large cross section in deep well

立井井筒作为整个矿井提升人员、通风、运料的主要通道,其安全性尤为重要,开展壁间注浆技术研究对井筒施工安全有着特别重要的意义,论文通过理论分析结合现场实际研究确定了井筒壁间注浆合理的注浆时间,对注浆压力进行了理论校核,同时优化了注浆工艺参数,并采用上部加固与下部支撑相结合的方式对冻结管进行了预防加固,实现了矿井井筒的安全高效掘进,这为类似条件矿井的安全生产提供了参考。

The shaft of mine as the main channel of miner, ventilation, material transport, its security is particularly important ,so it is veryimportant to study the technology of backwall grouting for the safety of shaft construction.This paper through theoretical analysis research todetermine the reasonable grouting time ofbackwall grouting grouting pressure on the theory calculation, and optimize the process parameters ofgrouting and the upper and the lower supporting reinforcement combining way of freezing pipe to prevent reinforcement, ande realized safe and efficient drivingshaft,whichprovidesareferenceforthesimitarminesafetyproductiorr