This project constitutes the specialized seismic support system component of the Outer Ring Tunnel overhaul. In strict accordance with the *Code for Seismic Design of Building Mechanical and Electrical Engineering Systems* (GB50981-2014) and high-standard seismic fortification requirements for tunnel engineering, the project entails comprehensive seismic reinforcement and upgrading of the tunnel's mechanical and electrical systems.
The scope of work encompasses tunnel ventilation and smoke exhaust systems; water supply, drainage, and fire-fighting piping; high- and low-voltage power distribution and lighting cable trays; monitoring and communication conduits; emergency evacuation signage systems; and utility lines for maintenance facilities. Through professional seismic analysis and detailed design tailored to the tunnel's confined, elongated geometry, the project delivers high-load-bearing seismic support systems that are moisture-resistant and corrosion-proof. Precision installation ensures high coordination and durability, guaranteeing the long-term stability of all piping and equipment against traffic-induced vibrations, geological shifts, and seismic events. This prevents system failures, equipment damage, and secondary hazards caused by displacement or detachment, thereby safeguarding the safety, operational continuity, and emergency disaster-resilience of this vital urban transportation artery.
