In the NATM method, the tunnel is excavated out in sections over a predetermined length. As a result, the tunnel is built in phases. The NATM method's stability depends in part on the fact that, if permitted to slightly deform, the ground can provide some of its own support. The NATM has frequently been referred to as a method where you can design the tunnel as you proceed, providing an optimized support based on observed ground conditions. However, it is actually an approach based on observed convergence and divergence in the lining as well as current rock conditions.
With PLAXIS geotechnical analysis software, the prediction of ground movement during tunnelling can be efficiently captured. PLAXIS considers the nonlinear interaction between the tunnel and the surrounding soils, as well as the elastoplastic behavior and the complexity of the construction stages.
Attend this webinar to learn about:
Modelling of NATM tunnels and incorporation of construction sequence in PLAXIS
Analysis of settlement of surrounding soil
Assessment of impact of tunneling on adjacent structures
Watch OnDemand
Webinar Presenters
Jeena Mary John
Product Success Manager Geotechnical
JaMie How
Product Sales Engineer Geotechnical
Jeena is an expert in geotechnical engineering and coastal engineering. She has a Bachelor’s Degree in Civil Engineering. She is pursuing her research in ocean engineering as a part-time candidate. She has presented papers in several international conferences. She is also a member in various technical communities and associations. Her research interests are pile driving in coastal areas, underwater blast study, and vibration study on coastal structures.
JaMie joined Bentley Systems in 2020 and is driven to grow Bentley Systems Geotechnical Analysis Solutions to various sectors in the South-East Asia Region. JaMie has approximately 11 years of experience as a geotechnical engineer in infrastructure, buildings, and oil & gas projects.
JaMie’s role in Bentley as Product Sales Engineer focuses on helping professionals and engineering designers in the South-East Asia Region solve or improve the analysis and design of complex geotechnical engineering problems by adopting Bentley Geotechnical Analysis Solutions.
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