Location
St. Louis, Missouri
Date
08 May 1984, 8:00 am - 10:00 am
Abstract
This paper summarizes the performance of the second instrumented research section of the Rio de Janeiro underground. The first aim of this programme was to establish a simple procedure to design diaphragm walls in soft clay soils. The model of a beam on elastic supports was chosen due to its simplicity and usefulness in the prediction of the wall behaviour. The concrete wall was built using the slurry trench technique and was instrumented to measure the concrete strain, the load on the reinforcement bars, the horizontal displacement and the horizontal earth pressure. It was measured the loads in the two level of struts. The geotechnical profile consists of a soft layer between two layers of sand. The surrounding soil received instruments to measure the pore water pressure, the horizontal and vertical displacements at different locations. This paper presents the comparison between predicted and measured values during the second stage of excavation.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
1st Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 1984 Missouri University of Science and Technology, 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
Soares, M. M., "Performance of a 30 m Deep Instrumented Diaphragm Wall" (1984). International Conference on Case Histories in Geotechnical Engineering. 50.
https://scholarsmine.mst.edu/icchge/1icchge/1icchge-theme2/50
Performance of a 30 m Deep Instrumented Diaphragm Wall
St. Louis, Missouri
This paper summarizes the performance of the second instrumented research section of the Rio de Janeiro underground. The first aim of this programme was to establish a simple procedure to design diaphragm walls in soft clay soils. The model of a beam on elastic supports was chosen due to its simplicity and usefulness in the prediction of the wall behaviour. The concrete wall was built using the slurry trench technique and was instrumented to measure the concrete strain, the load on the reinforcement bars, the horizontal displacement and the horizontal earth pressure. It was measured the loads in the two level of struts. The geotechnical profile consists of a soft layer between two layers of sand. The surrounding soil received instruments to measure the pore water pressure, the horizontal and vertical displacements at different locations. This paper presents the comparison between predicted and measured values during the second stage of excavation.
