Mechanics of weathered clay-marl rock masses along the rupture surface in homogeneous dry slopes

Abstract

Authors analyze stress-strain distribution within slope using the shear stress reduction technique based on finite element method, which was previously confirmed to provide approximately the same results as the Janbu's corrected limit equilibrium method. Results obtained indicate that the largest vertical displacements occur at the slope base and crest, while central part of the slope is exposed to the largest horizontal displacements. Normal and shear stress show maximum values in the middle part of the slope. It was also determined that separate stress-strain relations could be derived for the exact upper and lower part of the rupture surface.2010 Mathematics Subject Classification: 86A60.

Stability Analysis of Fragile Rock Pillars and Insights on Fault Activity in the Negev, Israel

“…For the M 7.5 scenario and similar tensile strength assumption, the basal tensile stresses are below the incipient strength for the median spectral acceleration and marginally above the incipient strength lower bound for the single standard deviation value. However, considering the many joints and weak marl layers crossing the pillar near its base, and assuming that tensile strength of such layers may be as low as 0.1–2.5 MPa (Kostic et al, 2016; Ma et al, 2018), basal detachment of the Ramon Pillar is likely to occur in both scenarios.…”