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Numerical investigation of stability of deep excavations supported by soil-nailing method
, Article Geomechanics and Geoengineering ; 2019 ; 17486025 (ISSN) ; Maleki, J ; Aghakhani, N ; Yousefi, M ; Sharif University of Technology
Taylor and Francis Ltd
2019
Abstract
Deep excavation in urban areas can cause instability problems due to significant settlement at the ground surface and large movements at the excavation facing walls. One of the most popular methods used to stabilise these excavations is utilising soil-nailing method. This method has also been widely used to stabilise natural slopes and earth retaining structures. Because of the complexity involved in the mechanism of this stabilising system due to interacting effects of the soil, nails, grout and shotcrete, numerical modelling with high accuracy should be used to analyse the behaviour of the soil-nailed walls. Considering all aspects of soil-structure interaction in the present research, a...
Numerical investigation of stability of deep excavations supported by soil-nailing method
, Article Geomechanics and Geoengineering ; 2019 ; 17486025 (ISSN) ; Maleki, J ; Aghakhani, N ; Yousefi, M ; Sharif University of Technology
Taylor and Francis Ltd
2019
Abstract
Deep excavation in urban areas can cause instability problems due to significant settlement at the ground surface and large movements at the excavation facing walls. One of the most popular methods used to stabilise these excavations is utilising soil-nailing method. This method has also been widely used to stabilise natural slopes and earth retaining structures. Because of the complexity involved in the mechanism of this stabilising system due to interacting effects of the soil, nails, grout and shotcrete, numerical modelling with high accuracy should be used to analyse the behaviour of the soil-nailed walls. Considering all aspects of soil-structure interaction in the present research, a...
A comprehensive FE study for design of anchored wall systems for deep excavations
, Article Tunnelling and Underground Space Technology ; Volume 122 , 2022 ; 08867798 (ISSN) ; Pak, A ; Yousefi, M ; Aghakhani, N ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
Anchored wall system is one of the common methods used for deep excavation stabilization adjacent to sensitive structures in urban areas. A key aspect of the stability analysis of deep excavations is the amount of deformations occurring on the facing wall and the adjacent structures. In this research, a large number of parametric studies considering all aspects of soil-structure interaction is carried out for different excavation geometries to find the optimal design, and the outcome is shown in the form of design tables and charts. Also, by a GA-PSO algorithm and using the large database obtained from the numerical simulations, a simple equation is developed that can predict the deflections...