Abstract
This article discusses the face stability of the soil in front of the TBM cutterhead and includes calculations of face stability for 27 cross sections for Mashhad Urban Railway Line 2 with use analytical methods. In the case of the MURL2 Project a TBM will be applied with an Earth Pressure Balance shield. The objective of this study is to advise on a support pressure which has to be applied during the different phases of the tunnel boring process of MURL2. The 27 cross sections have been selected for their spreading over the sections between the stations and the locally present soil overburden. During the shield tunnelling process, subsoil is cut loose by the cutting wheel. The main failure mechanism, which may occur, is inward collapse or cave in. To prevent the cutting face from collapsing, a supporting pressure can be applied by the TBM.
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© 2015 Springer International Publishing Switzerland
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Abbasi, M., Abbasi, M. (2015). Determine of Tunnel Face Stability Pressure in EPB Machine with Use Analytical Methods (Case Study: Mashhad Metro Line2). In: Lollino, G., et al. Engineering Geology for Society and Territory - Volume 6. Springer, Cham. https://doi.org/10.1007/978-3-319-09060-3_53
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DOI: https://doi.org/10.1007/978-3-319-09060-3_53
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-09060-3
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