Chiu, Y.-C.Y.-C.ChiuWang, T.-T.T.-T.WangHuang, T.-H.T.-H.HuangTAI-TIEN WANG2018-09-102018-09-102016http://www.scopus.com/inward/record.url?eid=2-s2.0-84971667819&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/399266Tunnel construction of Taiwan started early in late nineteenth century. Within 125 years, tunnel maintenance in Taiwan went through several stages. In early days, engineers meant tunnel excavation. Tunnel inspections, repairs and reinforcement were performed only when serious damage was observed. As the number of damaged tunnels increased, investigations of the most frequently recurring anomalies revealed that the degradation of tunnels in Taiwan was inevitable and usually occurred in an exceptionally shot period. Frequent earthquakes, a high ground water level and poorly cemented rock masses provides a severe environment for engineering structures. Hence, to adapt more effectively to the environment, tunnel maintenance started to consider the entire life cycle of a tunnel. Recently proposed monitoring technologies and anomaly cause diagnosis methods of Taiwan have been demonstrated to be useful in supporting the sustainable operation of tunnels. © 2016, Southeast Asian Geotechnical Society. All rights reserved.Tunnel; Tunnel inspection; Tunnel maintenance; Tunnel reinforcement; Tunnel repair[SDGs]SDG8[SDGs]SDG12Earthquake engineering; Groundwater; Life cycle; Reinforcement; Repair; Sustainable development; Water levels; Engineering structures; Entire life cycles; Monitoring technologies; Sustainable operations; Tunnel construction; Tunnel excavation; Tunnel inspection; Tunnel maintenances; Tunnels; damage mechanics; engineering geology; life cycle analysis; maintenance; reinforcement; rock mass response; sustainable development; tunnel repair; water level; Taiwanjournal article2-s2.0-84971667819