Life-Cycle Design Considerations for Hydraulic Tunnels: Lessons Learned from Inspection and Maintenance Cases
Journal
Journal of Performance of Constructed Facilities
Journal Volume
27
Journal Issue
6
Pages
796-806
Date Issued
2013
Author(s)
Abstract
This study addresses lessons learned from maintenance experiences in hydraulic tunnels in Taiwan. The characteristics of structural safety inspection are first discussed, and common anomalies in the linings of the hydraulic tunnels are illustrated. The repair and rehabilitation issues are then reviewed based on practical examples. Experience of inspection and maintenance shows that, based on a life-cycle perspective, the planning and design of a hydraulic tunnel should take into consideration, in detail, the long-term stability issues and required maintenance tasks during the service life of the tunnel, reserve all necessary preparatory facilities, and provide the clearance needed for any required work. In the construction stage, incorporating preprocessing measures for solving potential problems likely to occur during tunnel operation is essential. Initial inspection should be performed and maintenance databases should be established immediately upon completion of construction.
SDGs
Type
journal article