Three dimensional finite element analysis of the influence of the umbrella arch on the settlements induced by shallow tunneling. (June 2019)

• Record Type: Journal Article
• Authors: Hounyevou Klotoé, C.; Bourgeois, E.
• Is Part Of: Computers and geotechnics. Volume 110(2019)
• Page Start: 114
• Page End: 121
• Publication Date: 2019-06
• Subjects: Tunnel -- Settlement -- Finite element analysis -- Umbrella arch; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2019.02.017
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: This paper presents an analysis of the influence of the umbrella arch on the settlements induced by shallow tunneling, based on three-dimensional finite element simulations using CESAR-LCPC. The approach takes into account the actual geometry of the umbrella arch and the lining, and the various aspects of staged construction, notably the cycle of installation of the pipes. The results show that the influence of the umbrella arch on the settlements remains modest, at least for the range of parameters adopted in this study. Also, the results show that the numerical analysis can be carried out with a simplified geometry.