Time-dependent tunnel convergence-II. Advance rate and tunnel-support interaction

Y. W. Pan, J. J. Dong

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


A time-dependent model of tunnel convergence for tunnelling in a viscoelastic rock mass is proposed in the accompanying paper (this issue, pp. 469-475) to model the excavation-construction process during tunnelling in a rock mass with rheological properties. In this paper, a parametric study based on this model is presented to investigate the effects of the tunnelling advancing and support installation, respectively, on the tunnel convergence and on the support-pressure. Furthermore, a non-linear optimization procedure is suggested to calibrate the required model parameters from the in situ measured tunnel-convergence data. Discussion on the proper application of the proposed model and the optimization calibration are also included.

Original languageEnglish
Pages (from-to)477-488
Number of pages12
JournalInternational Journal of Rock Mechanics and Mining Sciences and
Issue number6
StatePublished - Nov 1991


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