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应用遗传算法搜索碾压混凝土坝滑动面的研究

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Indexed by:期刊论文

Date of Publication:2014-03-12

Journal:水力发电

Included Journals:PKU、ISTIC

Volume:40

Issue:3

Page Number:34-36

ISSN No.:0559-9342

Key Words:碾压混凝土坝;遗传算法;抗滑稳定;抗剪断参数;滑动面形状

Abstract:通过对高碾压混凝土坝进行有限元仿真分析得到坝体应力场,将坝体抗滑稳定安全系数与遗传算法的适应度函数相联系,利用遗传算法搜索不同层面力学参数下的临界滑动面,得到碾压混凝土坝滑动面形状随抗剪强度指标的变化规律以及地震动超载对滑动面形状的影响.结果表明,当抗剪断参数较小时,坝体的破坏趋近于层面剪切破坏,随抗剪断参数的增大,滑动面形状接近于常态混凝土坝的滑动面.

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