Slice Method of 3-D Anti-sliding Stability Analysis for Gravity Dam with Steep Stepped Base Face
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Abstract:
At present there is no common and perfect method for anti-sliding stability analysis of gravity dam with complex multi-zigzag plane base surface. Based on 3-D rigid body limit equilibrium theory and slice method, a method named 3-D anti-sliding stability slice method, which takes the dam body as many sliding rigid bodies, is put forward and the calculation program is developed. Combined with the preprocess module of ANSYS for load calculation, this method is used to analyze the anti-sliding stability of NO.7 bank dam of a hydropower station. The results show that the anti-sliding safety factor of this dam section can reach the requirement of standard. This method has strict computational theory and is easy to use, which can also be used with the current standard with reliable results and can be used for a reference in similar projects.
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