Three-dimensional Analysis of the Paraíso Tunnel, Brazil

• Type: Article in International Conference Proceedings Book
• Date: 1998

Authors

J. Almeida e Sousa (Author) Other; Manuel Matos Fernandes (Author) FEUP; A. S. Cardoso (Author) Other

Conference proceedings International

Title: 3rd International Workshop on Applications of Computational Mechanics in Geotechnical Engineering

Pages: 165-173

3rd International Workshop on Applications of Computational Mechanics in Geotechnical Engineering

Porto, Portugal, 2-4 Sept 1998

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Abstract (EN): This paper presents the field observations and the results of the application of finite elements models to the construction of the Paraiso tunnel of the S. Paulo metro system. This shallow tunnel, excavated in clayey formations exhibiting a wide range of strength and deformability, has been well-documented by Brazilian authors in a number of studies, The calculations involved three-dimensional analyses with a careful simulation of the entire construction sequence. The mechanical behaviour of the soil was reproduced by using two distinct constitutive laws: the simple elastic perfectly plastic model and the elasto-plastic model developed by Lade (1977, 1979). The observed behaviour is compared with the numerical results. Some conclusions are extracted concerning the limitations and capabilities of the constitutive soil models employed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9