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http://dx.doi.org/10.9711/KTAJ.2020.22.3.277

A study on the face pressure control and slurry leakage possibility using shield TBM model test  

Koh, Sungyil (SEOHA Engineering Co., Ltd.)
Shin, Hyunkang (Infra Division, Posco E&C)
La, You-Sung (Dept. of Geotech and Tunnel, SEOHA Engineering Co., Ltd.)
Jung, Hyuksang (Dept. of Railway Construction and Safety Engineering, Dongyang University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.22, no.3, 2020 , pp. 277-291 More about this Journal
Abstract
Shield TBM is a tunnelling method that has a wider range of applications in the poor ground condition compared to conventional tunnels (Drill and Blast). Currently, a 13.3 m large-diameter slurry shield TBM is preparing for construction to pass under the Han River. Shield TBM is divided into slurry and EPB shield TBM, and management items during construction are different depending on each characteristic. In this paper, the equipment type, origin, application case and trouble case were analyzed for slurry shield TBM, which is mainly constructed in soft ground. In addition, 2D and 3D model tests were conducted on the condition of soil depth for the possibility of slurry leakage into front of the equipment, with appropriate chamber pressure. Based on this paper, it proposed to provide basic and reference data for proper excavation surface pressure and chamber pressure during construction of slurry shield TBM under soft ground conditions, and proposed measures to minimize stability and environmental decline due to slurry ejection.
Keywords
Slurry shield TBM; Excavation surface pressure; Slurry leakage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 COB Commissie (1996), Inventory of design methods for drilling tunnels for road and rail connections, Technical Report L510-01.
2 Copperthwaite, W.C. (2016), Tunnel Shields and the Use of Compressed Air in Subaqueous Works, Palala Press, California, pp. 256-257.
3 Guglielmetti, V., Grasso, P., Mahtab, A., Xu, S. (2003), Mechanized Tunnelling in Urban Areas: Design methodology and construction control, Taylor & Francis, Abingdon-on-Thames, pp. 91-92.
4 Horn, N. (1961), "Horizontal earth pressure on the vertical surfaces of the tunnel tubes", Proceedings of the National Conference of the Hungarian Civil Engineering Industry, Budapest, pp. 7-16.
5 Japan Power Construction Association (2001), Investigation of construction case by TBM method.
6 Koh, S.Y., La, Y.S., Kim, B. (2020), "Shield TBM trouble cases review and parameter study for the cause analysis", Journal of Korean Tunnelling and Underground Space Association, Vol. 22, No. 2, pp. 197-217.   DOI
7 Müller-Kirchenbauer, H. (1972), "Stability of slurry trenches", Proceedings of the 5th European Conference on SMFE, Madrid, Vol. I, pp. 543-553.
8 Anagnostou, G., Kovári, K. (1996), "Face stability conditions with earth-pressure-balanced shields", Tunnelling and Underground Space Technology, Vol. 11, No. 2, pp. 165-173.   DOI
9 Ajou University IGUA (2010), A study on shield TBM tunnel face stability in soft ground.