TY - JOUR
T1 - Time-dependent tunnel convergence-I. Formulation of the model
AU - Pan, Y. W.
AU - Dong, J. J.
N1 - Funding Information:
Acknowledgement--This work was financially supported by the National Science Council of the Republic of China under Contract No. NSC80-0410-E-009-10. This support is gratefully acknowledged.
PY - 1991/11
Y1 - 1991/11
N2 - The understanding of the mechanism of tunnel convergence is essential for designing the required support of a tunnel. To take various time effects on the convergence-confinement relation into account, it is possible to correlate different factors with time, then to deal with their collective effects. As a result, the time-dependent tunnel deformation problem can be modelled as a viscoelastic problem. The solutions of various viscoelastic models can be obtained from the corresponding elastic solution based on a standard procedure. In this paper, a hierarchical approach, which considers: (1) the rheological properties of a rock mass; (2) the advancement of the tunnel; and (3) the tunnel-support interaction is proposed to model the excavation/construction process during the tunnelling in a rock mass with rheological properties. The time-dependent factors considered in the proposed model are discussed. Subsequently, the theoretical formulation of this model is developed.
AB - The understanding of the mechanism of tunnel convergence is essential for designing the required support of a tunnel. To take various time effects on the convergence-confinement relation into account, it is possible to correlate different factors with time, then to deal with their collective effects. As a result, the time-dependent tunnel deformation problem can be modelled as a viscoelastic problem. The solutions of various viscoelastic models can be obtained from the corresponding elastic solution based on a standard procedure. In this paper, a hierarchical approach, which considers: (1) the rheological properties of a rock mass; (2) the advancement of the tunnel; and (3) the tunnel-support interaction is proposed to model the excavation/construction process during the tunnelling in a rock mass with rheological properties. The time-dependent factors considered in the proposed model are discussed. Subsequently, the theoretical formulation of this model is developed.
UR - http://www.scopus.com/inward/record.url?scp=0026301384&partnerID=8YFLogxK
U2 - 10.1016/0148-9062(91)91122-8
DO - 10.1016/0148-9062(91)91122-8
M3 - 期刊論文
AN - SCOPUS:0026301384
SN - 0148-9062
VL - 28
SP - 469
EP - 475
JO - International Journal of Rock Mechanics and Mining Sciences and
JF - International Journal of Rock Mechanics and Mining Sciences and
IS - 6
ER -