A Study on the Development of Maintenance System for Tunnel with Freezing-Thawing Damage

K. H. Park ； J. W. An ； S. H. Park ； T. G. Yoon

《Geotechnical Hazard Mitigations: Experiment, Theory and Practice—Proceedings of the 5th International Conference on Geotechnical Engineering for Disaster Mitigation and Rehabilitation》 2017年 (2017/10) Pp. 121-135

https://doi.org/10.6140/9789864371419.201710.0011

摘要

South Korea is a country where consists of about 64% mountainous. Due to these geographical characteristics, a number of tunnels are constantly increasing and it is inevitable with national land development. Especially, many problems in the winter season such as water leaks, icicles, etc. have been occurred by freezing phenomenon at the road tunnels. Therefore, in order to reduce property damage caused by cold environment, it is necessary to establish a mechanism of freezing-thawing of tunnel structures. The maintenance of the tunnel is essential because tunnel exposed in cold region exists as possibility of collapse. Additionally, it can seriously damage the national economy and people. Hence, the development of the new concept of technique and evaluation method is needed to deal with the freezing problem and to keep the tunnel durability performance continuously. Based on freezing- thawing day(F), repair/reinforcement process and maintenance strategy system(plan) of tunnel were suggested in this study.

關鍵字

Water leaks ； Freezing-thawing day(F) ； Tunnel durability performance