Location

Chicago, Illinois

Session Start Date

4-29-2013

Session End Date

5-4-2013

Abstract

Increasing density of urban areas leads to building high-rise buildings with deep foundations, enabling their basements for car parking and facilities. Increasing depth of the foundation of these buildings increases also the need for more rigid earth retaining systems. Thus, generally, due to the importance of the neighboring buildings, great care has to be taken in the design process of the retaining structure and the support system of deep excavation in densely built urban areas. The paper summarizes a parametric study on a geotechnical model of a deep excavation, proper to Bucharest subsoil, Romania. The analysis of the excavation was done on the basis of the finite element method. The constitutive soil model used for simulating the soil behavior took into account the fact that the specific phenomenon in the soil, during the excavation process, is based on unloading. The most important factors which affect the influence zone of the excavation (excavation depth, excavation width, distance to neighboring buildings, and the weight of the neighboring buildings) are shortly described and their importance on estimating the displacements of the retaining structure are discussed on the basis of the FE analysis results.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Seventh Conference

Publisher

Missouri University of Science and Technology

Publication Date

4-29-2013

Document Version

Final Version

Rights

© 2013 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Share

 
COinS
 
Apr 29th, 12:00 AM May 4th, 12:00 AM

Some Remarks on the Influence of Deep Excavations on Neighbouring Buildings

Chicago, Illinois

Increasing density of urban areas leads to building high-rise buildings with deep foundations, enabling their basements for car parking and facilities. Increasing depth of the foundation of these buildings increases also the need for more rigid earth retaining systems. Thus, generally, due to the importance of the neighboring buildings, great care has to be taken in the design process of the retaining structure and the support system of deep excavation in densely built urban areas. The paper summarizes a parametric study on a geotechnical model of a deep excavation, proper to Bucharest subsoil, Romania. The analysis of the excavation was done on the basis of the finite element method. The constitutive soil model used for simulating the soil behavior took into account the fact that the specific phenomenon in the soil, during the excavation process, is based on unloading. The most important factors which affect the influence zone of the excavation (excavation depth, excavation width, distance to neighboring buildings, and the weight of the neighboring buildings) are shortly described and their importance on estimating the displacements of the retaining structure are discussed on the basis of the FE analysis results.