Abstract
During the tunnel construction process, unfavorable geological conditions are often encountered. Geological disasters such as collapse, roof fall, water inrush, gas explosion, etc. occur frequently, causing different degrees of property damage and casualties to the construction of the tunnel, seriously affecting harmony during construction. The domestic emergency hedging is mainly the use of 8-10mm steel coils, but the steel is heavy and not suitable for the frequent movement of tunnels. This paper introduces the new Glass Fiber Reinforced Polymer Composite (GFRPC) escape pipeline used in Chongqing Jiuyongyi Jinyunshan Tunnel, and compares the traditional steel coil parameters to provide reference for subsequent tunnel hedging measures.