Method of Calculating Potential Sliding Face Progressive Failure of Slope
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United States of America Patent
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Apr 13, 2017
app pub date -
Feb 19, 2016
filing date -
Oct 12, 2015
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Abstract
A method of calculating the potential sliding surface of the progressive failure of slope is provided, which is also abbreviated as a failure angle rotation method. The method performs the search calculation of the potential sliding surface of the slope to determine the potential sliding surface, under the assumption that the geological material failure satisfies the condition of the angle between the maximum shear stress surface and the minimum principal stress axis corresponding to the critical stress state being (45° +φ/2), and based on the fact that the principal stress directions at different positions are rotated while the slope is applied different external loads and gravity loads. The failure path is varied with the change of the stress during the failure process to perform the solution for the potential sliding surface of the slope based on numerical calculation.
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