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.
| Translated title of the contribution | Investigation of ground behaviour between plane-strain grouped pile and 2-arch tunnel station excavation |
|---|---|
| Original language | Korean |
| Pages (from-to) | 353-544 |
| Number of pages | 10 |
| Journal | 한국터널지하공간학회 논문집 |
| Volume | 18 |
| Issue number | 6 |
| DOIs | |
| State | Published - Nov 2016 |