Research on Construction Technology of Subway Tunnel Connecting Channel Based on Brine Freezing Reinforcement
Connecting channel is a common auxiliary facility of a subway tunnel.However,its related construction technology summary is relatively lacking.Based on the actual project,the construction of the subway tunnel connecting channel in the medium-strong weathered muddy siltstone is analyzed and summarized.The key technologies of freezing in the construction process of freezing reinforcement are sorted out,and the parameters of freezing construction are clarified.The key technical points of the whole process of the construction of the connecting channel are summarized.The grouting technology of the connecting channel of the frozen reinforced stratum is sorted out,and the key technical characteristics of grouting reinforcement are expounded.The risk disposal measures in the construction process of the connecting channel are put forward.