Date of Award
Master of Engineering Science
School of Engineering
Computing, Health and Science.
Associate Professor Sanjay Kumar Shukla
The stability analysis of rock slopes has been a challenging task for engineers
because the rock mass constituting the slope often has discontinuities in various
forms, resulting in different types of slope failures. The plane failure is one of the
rock slope failures observed in field situations when the discontinuity is in the form
of joint planes. There are several parameters including surcharge and seismic loads
that govern the stability of the rock slope against plane failure in field projects. The
limit equilibrium approach for the estimation of the factor of safety of the rock slope
against plane failure has been well accepted by the engineers in the past. Very
recently, attempts have been made to present analytical expressions for the factor of
safety of the of the rock slopes against plane failure, which are not in a generalised
form because they do incorporate most field parameters. Therefore, in the present
work, the analytical expression for the factor of safety of a single-directional
anchored rock slope (SDARS) is derived, along with a discussion of its special cases
in view of different practical situations. Parametric studies and design charts for the
stability of the SDARS are presented, and an illustrative example is included to
explain the calculation steps for the factor of safety. In order to investigate the effect
of multi-directional rock anchors on the factor of safety, an analytical expression for
a multi-directional anchored rock slope (MDARS) is also presented.
Hossain, Md M., "Stability analysis of anchored rock slopes against plane failure subjected to surcharge and seismic loads" (2011). Theses: Doctorates and Masters. Paper 139.