Blasting is a popular method of excavation in underground construction. Blast-induced
vibrations, however, if not properly controlled, can negatively affect the rock mass …

Flysch formations are generally characterised by evident heterogeneity in the presence of
low strength and tectonically disturbed structures. The complexity of these geological …

Engineering rock mass classification is usually the first stage in the analysis and
characterization of rock slopes. However, when dealing with sedimentary/heterogeneous …

The construction of twin tunnels is a mandatory guideline and a prevailing practice in either
conventional or mechanized tunneling. Nevertheless, most of the design methods for …

This paper argues that there is a requirement for standardized nomenclature and a selection
methodology for a particular class of temporary support. The authors have chosen the term …

Hard rock formations with layered, anisotropic geological structures are rather common in
Norway. The design of tunnel rock support under such ground conditions has been …

A methodology for designing a tunnel support system according to the actual ground
conditions and the critical behaviour types is analysed in this paper. The methodology is …

The Victorian tunnels that lie on the nation's railway network have been vital to facilitating a
reliable rail service across the country for the past 150 years. However, some of these …

The rock mass quality in underground excavations and or tunnelling is a key issue in the
design of the most suitable support to ground stability. This work aims to discuss the …

Existing experience from the design and construction of underground works is of major
importance for the improvement of the construction methods and procedures in tunnelling …