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http://dx.doi.org/10.9711/KTAJ.2016.18.6.535

Investigation of ground behaviour between plane-strain grouped pile and 2-arch tunnel station excavation  

Kong, Suk-Min (Seoul National University of Science & Technology, Dept. of Civil Engineering)
Oh, Dong-Wook (Seoul National University of Science & Technology, Dept. of Civil Engineering)
Ahn, Ho-Yeon (Seoul National University of Science & Technology, Dept. of Civil Engineering)
Lee, Hyun-Gu (Seoul National University of Science & Technology, Dept. of Civil Engineering)
Lee, Yong-Joo (Seoul National University of Science & Technology, Dept. of Civil Engineering)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.18, no.6, 2016 , pp. 535-544 More about this Journal
Abstract
Special tunnel design and construction methods have been suggested due to developments of subway and tunnel. Collapse accidents of tunnel bring enormous damage. So, observation and analysis for the safety of tunnelling and behaviour of surrounding ground are important. But, it is not economical to implement the field test in every time. Therefore, this study has measured ground behaviour due to excavation of 2-arch tunnel station according to offset between grouped pile and tunnel by laboratory model test. For the model test, trapdoor device was adopted. Tunnelling is simulated by volume loss of 2-arch tunnel. Ground displacements are observed by close range photogrammetric method and image processing. In addition, these data are compared with numerical analysis.
Keywords
Grouped pile; 2-arch tunnel excavation; Close range photogrammetry; Numerical analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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