Face failure in homogeneous and stratified soft ground: Theoretical and experimental approaches on 1g EPBS reduced scale model

Autor:	Didier Subrin, Denis Branque, Nicolas Berthoz, Emmanuel Humbert, Henry Wong
Rok vydání:	2012
Předmět:	Engineering business.industry Building and Construction Kinematics Geotechnical Engineering and Engineering Geology Yield design Homogeneous Lateral earth pressure Shield Face (geometry) Geotechnical engineering Limit (mathematics) business Scale model
Zdroj:	Tunnelling and Underground Space Technology. 30:25-37
ISSN:	0886-7798
Popis:	Mechanisms of face collapse and face blow-out of tunnels driven in soft grounds with pressurized shield tunnel boring machine are studied. Results presented are issued from several tests carried out with an original laboratory reduced-scale model of earth pressure balanced shield (EPBS). The failure kinematics and limit face pressures in homogeneous purely frictional or cohesive–frictional soils, as well as in stratified soils (two or three-layered soils) are presented and analyzed. Comparisons of these experimental results with the predictions from yield design theory are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::75e218cf8b7ac77beb9416f47170872b https://doi.org/10.1016/j.tust.2012.01.005 Zobrazit plný text záznamu Full Text from ScienceDirect