Print Email Facebook Twitter Praktijkonderzoek Boortunnel Groene Hart: Liggerwerking van boortunnels in de bouwfase Title Praktijkonderzoek Boortunnel Groene Hart: Liggerwerking van boortunnels in de bouwfase Author De Rijke, Q.C. Date 2009-03-01 Abstract Behind the tunnel boring machine (TBM) the rings form a tunnel lining that is embedded in grout and soil. The TBM exerts a normal force, a bending moment and a shear force on the lining. The tunnel rings behind the TBM experience a load through the grout, ground and ground water, but the ground also acts as a support medium. A ring that has just left the TBM floats in the fluid grout that has hardly any stiffness and offers resistance to tunnel displacements due to downward grout flow. Furthermore, resistance is offered by force transfer to the TBM and the adjacent rings of the tunnel lining and the hardened grout further down the tunnel. The rings thus have to cooperate to create equilibrium. This cooperation is called beam action. The focus of the research of COB-committee F512 was aimed at the beam action behind the TBM during the construction phase of the Boortunnel Groene Hart (bored tunnel in the Groene Hart in the Netherlands). Important issues in the research were the displacements and deformations of the tunnel, stresses in the tunnel lining and the grout pressure at the exterior of the tunnel tube. Subject Groene Harttunneltunnelboormachinetunnelbuisdwarskrachtliggerwerkingboortunnelborentunnelwandtunnel tubegroutsoil To reference this document use: http://resolver.tudelft.nl/uuid:b8016422-25e7-4279-84ab-cf74350f43e8 Publisher Delft Cluster ISBN 9789077374214 Source F512-07-03 Part of collection Institutional Repository Document type report Rights (c)2009 De Rijke, Q.C. Files PDF Eindrapport_F512-07-03_def.pdf 4.05 MB Close viewer /islandora/object/uuid:b8016422-25e7-4279-84ab-cf74350f43e8/datastream/OBJ/view