Effect of Hydraulic Conditions in controlling the Face in EPB Excavated Tunnels

Panagiotis Sitarenios; Dimitris Litsas; Anastasios Papadakos; Michael Kavvadas

Effect of Hydraulic Conditions in controlling the Face in EPB Excavated Tunnels

Panagiotis Sitarenios, Dimitris Litsas, Anastasios Papadakos, Michael Kavvadas

School of Energy, Construction and Environment

National Technical University of Athens

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Abstract

This paper investigates numerically face stability and deformation of EPB tunnels excavated below the groundwater table. Emphasis is given in the proper simulation of the pressure exerted by the excavated material filling the front chamber of the EBP machine. The paper presents the results of 3D coupled hydromechanical analyses for tunnel face stability, using the computer code ABAQUS with the Mohr–Coulomb and Modified Cam-Clay constitutive models, for various geotechnical and hydraulic conditions. The undrained shear strength of the ground is shown to be an effective control parameter for interpreting and normalising the results under different geotechnical conditions, irrespective of the adopted constitutive model.

Original language	English
Title of host publication	World Tunnel Congress 2015, Dubrovnik, Croatia (Proceedings in CD)
Place of Publication	Dubrovnik, Croatia
Publication status	Published - May 2015
Event	2015 World Tunnel Congress - Dubrovnik, Croatia Duration: 22 May 2015 → 28 May 2015

Conference

Conference	2015 World Tunnel Congress
Country/Territory	Croatia
City	Dubrovnik
Period	22/05/15 → 28/05/15

Keywords

EPB tunnelling
Face Pressure
Face drainage

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https://www.academia.edu/12748201/Effect_of_hydraulic_conditions_in_controlling_the_face_in_EPB_excavated_tunnels?source=swp_share

Cite this

Sitarenios, P, Litsas, D, Papadakos, A & Kavvadas, M 2015, Effect of Hydraulic Conditions in controlling the Face in EPB Excavated Tunnels. in World Tunnel Congress 2015, Dubrovnik, Croatia (Proceedings in CD). Dubrovnik, Croatia, 2015 World Tunnel Congress , Dubrovnik, Croatia, 22/05/15. < https://www.academia.edu/12748201/Effect_of_hydraulic_conditions_in_controlling_the_face_in_EPB_excavated_tunnels?source=swp_share>

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title = "Effect of Hydraulic Conditions in controlling the Face in EPB Excavated Tunnels",

abstract = "This paper investigates numerically face stability and deformation of EPB tunnels excavated below the groundwater table. Emphasis is given in the proper simulation of the pressure exerted by the excavated material filling the front chamber of the EBP machine. The paper presents the results of 3D coupled hydromechanical analyses for tunnel face stability, using the computer code ABAQUS with the Mohr–Coulomb and Modified Cam-Clay constitutive models, for various geotechnical and hydraulic conditions. The undrained shear strength of the ground is shown to be an effective control parameter for interpreting and normalising the results under different geotechnical conditions, irrespective of the adopted constitutive model.",

keywords = "EPB tunnelling, Face Pressure, Face drainage",

author = "Panagiotis Sitarenios and Dimitris Litsas and Anastasios Papadakos and Michael Kavvadas",

year = "2015",

month = may,

language = "English",

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AU - Sitarenios, Panagiotis

AU - Litsas, Dimitris

AU - Papadakos, Anastasios

AU - Kavvadas, Michael

PY - 2015/5

Y1 - 2015/5

N2 - This paper investigates numerically face stability and deformation of EPB tunnels excavated below the groundwater table. Emphasis is given in the proper simulation of the pressure exerted by the excavated material filling the front chamber of the EBP machine. The paper presents the results of 3D coupled hydromechanical analyses for tunnel face stability, using the computer code ABAQUS with the Mohr–Coulomb and Modified Cam-Clay constitutive models, for various geotechnical and hydraulic conditions. The undrained shear strength of the ground is shown to be an effective control parameter for interpreting and normalising the results under different geotechnical conditions, irrespective of the adopted constitutive model.

AB - This paper investigates numerically face stability and deformation of EPB tunnels excavated below the groundwater table. Emphasis is given in the proper simulation of the pressure exerted by the excavated material filling the front chamber of the EBP machine. The paper presents the results of 3D coupled hydromechanical analyses for tunnel face stability, using the computer code ABAQUS with the Mohr–Coulomb and Modified Cam-Clay constitutive models, for various geotechnical and hydraulic conditions. The undrained shear strength of the ground is shown to be an effective control parameter for interpreting and normalising the results under different geotechnical conditions, irrespective of the adopted constitutive model.

KW - EPB tunnelling

KW - Face Pressure

KW - Face drainage

M3 - Conference proceeding

BT - World Tunnel Congress 2015, Dubrovnik, Croatia (Proceedings in CD)

CY - Dubrovnik, Croatia

T2 - 2015 World Tunnel Congress

Y2 - 22 May 2015 through 28 May 2015

ER -

Effect of Hydraulic Conditions in controlling the Face in EPB Excavated Tunnels

Abstract

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Keywords

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