Three‐dimensional ridge collapse mechanism for narrow soil slopes

Three-dimensional analysis of stability is carried out for slopes with the failure mechanism confined to a narrow space. A curvilinear cone surface modified by removing slice from its central portion, make fit in The resulting no longer smooth, and it referred as ridge distinct surface. based on appears yield lower factors than mechanisms used geotechnical engineering thus far. Kinematic limit utilized calculations provides an upper bound true factor solution, hence newly proposed delivers more accurate solution.