Convergence-confinement analysis for tunneling is a standard approach for preliminary
analysis of anticipated wall deformation and support design in squeezing ground. Whether …

The stability of circular excavations in clay shales is a key issue in the drilling and tunnelling
industries as well as in the field of deep geological waste storage. A large body of …

During the excavation of a tunnel the accumulated wall displacement and the loading of
tunnel support is the result of both the tunnel advance (round length and cycle time) and the …

Rock mass behaviour model selection and, in particular, rock mass post-failure behaviour
are key issues in analysing tunnel stability, in particular in terms of the correct application of …

Application of the convergence-confinement method to tunnels in rock masses exhibiting
Hoek–Brown strain-softening behaviour - ScienceDirect Skip to main contentSkip to article …

This paper describes a methodology for the mechanical analysis of composite supports,
such as liners consisting of shotcrete and steel sets. The methodology presented here is …

In spite of the gradual development of three-dimensional analysis packages utilizing finite
element models or finite difference algorithms for stress–strain calculations, two-dimensional …

Summary The 5 m diameter 23.3 km long Yacambú-Quibor tunnel is designed to carry water
through the Andes from the Yacambú dam in the wet tropical Orinoco basin to the semi-arid …

We describe techniques to estimate plastic radii and longitudinal deformation profiles of
tunnels excavated in rock masses. The longitudinal deformation profile, a graph that relates …

This paper addresses the problem of quantifying the mechanical contribution of rockbolts
installed systematically around tunnels excavated in rock masses. The mechanical …