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Prediction of Preceding Displacement of a Soil-Tunnel by Displacement Monitoring using Horizontal Inclinometer  

Kim, Chu-Hwa (대림산업(주))
Chae, Young-Su (수원대학교 공과대학 토목공학과)
Park, Yeon-Jun (수원대학교 공과대학 토목공학과)
Publication Information
Tunnel and Underground Space / v.18, no.5, 2008 , pp. 355-365 More about this Journal
Abstract
Displacement caused by tunneling is difficult to predict since it is affected by many factors such as ground condition, excavation method and supplementary method of reinforcement. In this study, horizontal inclinometer was employed to monitor ground settlements above a tunnel face before and after the excavation. Monitoring results were analyzed to predict the preceding displacement and settlement of the surface structures. The result of the analysis can be used to establish a proper counter measure which keeps the serviceability of the surface structures. Based on the analysis of the monitoring result, ground properties of the site were deduced and the influence of the tunnel excavation on the settlement of the foundation above the tunnel is analyzed.
Keywords
Horizontal inclinometer; Preceding displacement; Back analysis;
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