Journal
JOURNAL OF EARTH SCIENCE
Volume 31, Issue 6, Pages 1087-1096Publisher
CHINA UNIV GEOSCIENCES, WUHAN
DOI: 10.1007/s12583-020-1052-0
Keywords
slope failure; geological engineering; cracked soil slope; large-scale model test; deformation mechanism; arching slope
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The stability of an arching slope in deformable materials above strong rocks strongly depends on the shape and width of the span. Equations for a free surface problem that incorporate these two parameters were derived using a simplified two-dimensional arching slope model, and were validated using physical model tests under 1g and centrifugal conditions. The results are used to estimate the maximum excavation width for a weak claystone slope in a lignite mine, for which we calculate a safety factor of 1.31.
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