Computer Analysis Of Slope Failure
And Landslide Processes Caused By Water
Author(s)
I. Sarafis & J. Zezulak
Abstract
At headwater channels in particular, the landslide of slopes with water body
intersection, together with earth dam failures frequently become a main
contribution to debris flow. The use of a computer model for slope stability
evaluation of an arbitrary earthwork based on the Bishop's method is discussed.
Similarly to that of Peterson, it adopts the assumption of a circular shape of the
sliding body and evaluates the balance between the forces acting in the direction
of the failure (destructing forces) and the resisting forces. In contrast to Peterson,
the Bishop's method considers solely the ‘mobilised’ shear stress as the only part
of total shear stress over the sliding circle. The program applies both for earth
dams and for natural land-sliding. The AutoCAD engine provides for visual
generation of an almost unlimited number of shapes of the body ‘segments’,
being interfaced with the input/output utilities of the soil mechanics module.
Keywords: earth bodies, landslides affected by water, slip circle, CAD support.
1 Introduction
Apart from methods of finite elements and/or differences, the traditional slope
stability solvers are classified into two categories, using either principles of
elastic theory or conditions of boundary plastic balances. At the latter, the
limiting state of sliding body is assumed and conditions of its genesis are
examined. The correct presumption of the form and position of slipway surface
is a crucial point of such analysis. Different authors consider the problem
differently.
Possibility of an easy introduction of various types of soils into the earthwork
and introducing features of non-homogeneity into its structure becomes main
Keywords
earth bodies, landslides affected by water, slip circle, CAD support.
Related Book
Other papers in this volume
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