Embedded Retaining Wall Design and Performance Monitoring for Deep Excavation in Geological Conditions of Qatar
Abstract
Embedded retaining walls such as diaphragm walls and secant bored pile walls have
become viable water-tight earth retaining and stabilizing systems for deep excavation
in urban areas. In this article, the design aspects of a diaphragm wall are presented,
and its performance is assessed and comparison of predicted wall movements with the
observed behavior is discussed. The geotechnical analysis and design of retaining system
was performed by finite element analysis using PLAXIS with linear elastic perfectly
plastic constitutive model. Structural calculations for the support system were done
using structural program Staad Pro. A monitoring program was adopted to monitor the
performance of the designed retaining system. Design methodology and discussion on
understanding of performance monitoring presented in this paper provides a reference
for the future design and safe economical construction of similar structures in geological
conditions of Qatar. It also provides basis for the potential refinement of the monitoring
techniques of embedded retaining walls in Qatar.