This study is primarily a numerical investigation into the geomechanical response and
deformation of two kinds of rock materials, massive and jointed rocks to excavation. Two …

Incremental finite element analyses were conducted to determine whether the measured
displacements of the Edward Hyatt (Oroville) Power Plant chamber excavation could be …

Analyses of jointed, cracked, and fractured rock masses are needed in a variety of
applications, including estimates of reduced elastic modulus for damaged rock, estimates of …

The safe design of excavations created in a fractured rock mass is of paramount importance
in rock engineering. Depending on the nature of the stress regime acting on an excavation …

The strength and dilation of rock joints in the field cannot be evaluated solely on the basis of
parameters scaled from laboratory data but also requires assessment of large-scale …

An extensive program of finite element analyses was conducted to investigate the
significance of material properties, initial stresses, excavation sequences and opening …

A field study and modeling experiments at laboratory scale were conducted to investigate
the effects of repeated episodes of seismic motions on dynamic behavior of jointed rock …

Many Nevada gold deposits are found in highly fractured, faulted, and argillised host rock
with Rock Mass Rating (RMR76) mostly ranging from 10 to 50 classified as weak to very …

In deep underground mining operations, field stresses are increasing and may lead to brittle
failure in excavations in hard rock masses. Brittle failure indicators include crack initiation …

A project to develop an excavation design process for potential application in construction of
a nuclear fuel waste repository was undertaken in Canada at the Underground Research …