Risk analysis and control in the Yellow River-crossing tunnel of South-to-North Water Diversion East Line

摘要

The life-cycle of the Yellow River-crossing tunnel is divided into six stages, including planning, design, bidding, construction, operation, maintenance, and disposal. To ensure the safety of the tunnel during various stages, the concept of life-cycle risk management is introduced. The article identified the risks in all stages and proposed corresponding measures for risk controlling, some of which were already applied in the project and achieved good effect.