Abstract:
Considering the characteristics of operation and maintenance of high-speed railways, an option featuring a double seal and partition separation was adopted in the waterproofing design for the segment joint in the Shiziyang Tunnel on the Guangzhou-Shenzhen-Hongkong high-speed railway. The key technical parameters of an elastic seal gasket and partition separation are analyzed in regard to waterproofing, and the requirements for joint staggering, joint opening, and groove repair during construction are addressed.