TY - GEN
T1 - FE-analysis of ground freezing for the construction of a tunnel cross connection
AU - Cudmani, Roberto
AU - Nagelsdiek, Siegfried
PY - 2006
Y1 - 2006
N2 - The Finite Element Method (FEM) is used in combination with an elastic-viscoplastic constitutive model for the analysis of a ground freezing problem related to the construction of a tunnel cross connection in the city of Cologne. As the considered problem is essentially three-dimensional, but a 3D-calculation was not feasible, an approximate solution is obtained by coupling a simplified 3D- with a 2D-model. It is concluded that the FEM is an appropriated and powerful technique for the analysis of ground freezing problems. However, the time-dependent response of the frozen body, especially the evaluation of the maximum allowable standing time, can be only properly predicted if the real constitutive behavior of the frozen soil is taken into account in the calculation.
AB - The Finite Element Method (FEM) is used in combination with an elastic-viscoplastic constitutive model for the analysis of a ground freezing problem related to the construction of a tunnel cross connection in the city of Cologne. As the considered problem is essentially three-dimensional, but a 3D-calculation was not feasible, an approximate solution is obtained by coupling a simplified 3D- with a 2D-model. It is concluded that the FEM is an appropriated and powerful technique for the analysis of ground freezing problems. However, the time-dependent response of the frozen body, especially the evaluation of the maximum allowable standing time, can be only properly predicted if the real constitutive behavior of the frozen soil is taken into account in the calculation.
UR - http://www.scopus.com/inward/record.url?scp=55549129974&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:55549129974
SN - 0415397480
SN - 9780415397483
T3 - Proc. Int. Conf. Numerical Simulation of Construction Processes in Geotechnical Eng. for Urban Environment - Numerical Modelling of Construction Processes in Geotechnical Eng. for Urban Environment
SP - 201
EP - 210
BT - Proc. Int. Conf. on Numerical Simulation of Construction Processes in Geotechnical Eng. for Urban Environment - Numerical Modelling of Construction Processes in Geotechnical Eng. for Urban Environment
T2 - International Conference on Numerical Simulation of Construction Processes in Geotechnical Engineering for Urban Environment - Numerical Modelling of Construction Processes in Geotechnical Engineering for Urban Environment
Y2 - 23 March 2006 through 24 March 2006
ER -