Date
02 Jun 1988, 10:30 am - 3:00 pm
Abstract
This paper analyzes a braced excavation executed during the construction of Rio de Janeiro City subway along a street (Catete Street) in which several old and historical buildings existed and should be preserved. The excavation had an average depth of 13 meters and was executed almost ten years ago in a subsoil in which the principal problems were caused by a 6 meters thick loose sand layer, underlaid by a 4 meter thick silty organic clay layer. Several buildings were damaged and had to be repaired. The objective of this paper is to show that even using the incomplete laboratory and field testing data available at the time the design was made, some of this damage could be predicted and, therefore, possibly prevented. The paper firstly describes the excavation and the available information on the subsoil materials. Subsequently, a finite element analysis is made and the results are correlated to observed damage.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Azevedo, Roberto and Santos, Luis Anibal, "Field Observation and Finite Element Analysis of a Subway Excavation" (1988). International Conference on Case Histories in Geotechnical Engineering. 23.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session3/23
Field Observation and Finite Element Analysis of a Subway Excavation
This paper analyzes a braced excavation executed during the construction of Rio de Janeiro City subway along a street (Catete Street) in which several old and historical buildings existed and should be preserved. The excavation had an average depth of 13 meters and was executed almost ten years ago in a subsoil in which the principal problems were caused by a 6 meters thick loose sand layer, underlaid by a 4 meter thick silty organic clay layer. Several buildings were damaged and had to be repaired. The objective of this paper is to show that even using the incomplete laboratory and field testing data available at the time the design was made, some of this damage could be predicted and, therefore, possibly prevented. The paper firstly describes the excavation and the available information on the subsoil materials. Subsequently, a finite element analysis is made and the results are correlated to observed damage.
