A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Finite element analysis of ground response due to tunnel excavation in soils
Excavation of tunnels in soft ground is usually associated with ground deformations around and ahead of the tunnel boring machine. Therefore, the prediction of these deformations before excavation is very important for engineering design. In this paper, a finite element computational model is used to predict the ground deformations caused by the Earth Pressure Balance (EPB) shield tunneling in cohesive soils. This study presents the effect of different soil parameters, such as the coefficient of earth pressure at rest, ko, overconsolidation ratio, OCR, the effect of applied heaving pressure and the depth of the soil over the tunnel crown, H, on the predicted ground deformations. Results of this work show a wide variation of soil deformations can occur due to changes in soil parameters, heave pressure and cover depth.
Finite element analysis of ground response due to tunnel excavation in soils
Excavation of tunnels in soft ground is usually associated with ground deformations around and ahead of the tunnel boring machine. Therefore, the prediction of these deformations before excavation is very important for engineering design. In this paper, a finite element computational model is used to predict the ground deformations caused by the Earth Pressure Balance (EPB) shield tunneling in cohesive soils. This study presents the effect of different soil parameters, such as the coefficient of earth pressure at rest, ko, overconsolidation ratio, OCR, the effect of applied heaving pressure and the depth of the soil over the tunnel crown, H, on the predicted ground deformations. Results of this work show a wide variation of soil deformations can occur due to changes in soil parameters, heave pressure and cover depth.
Finite element analysis of ground response due to tunnel excavation in soils
Abu-Farsakh, M.Y. (author) / Tumay, M.T. (author)
1999
12 Seiten, 7 Quellen
Conference paper
English
Finite Element Analysis of Ground Response Due to Tunnel Excavation in Soils
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