Study on influence of deep excavations on existing tunnels using PLAXIS-GiD

ApplicationPLAXIS 3D
VersionPLAXIS 3D
Original AuthorX. Huang, H. F. Schweiger
Date created19 October 2011
Date modified24 October 2016

In the urban environment utilization of underground space is essential due to significant congestion at the ground surface. This is also the case in the city of Shanghai where a number of new underground passages are being constructed, many of them in the vicinity of existing tunnels. In general these new underground structures require deep excavations and it is therefore necessary to assess the influence of these excavations on existing tunnels because they may undergo displacements which may affect the serviceability of the tunnel, and additional loads on the lining may be imposed for which the lining is not designed for.