| 基于DE算法的重力坝坝基多斜面抗滑稳定可靠度研究 |
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| 引用本文： | 钱龙,王刚,许丽娜,赵云兴. 基于DE算法的重力坝坝基多斜面抗滑稳定可靠度研究[J]. 水力发电, 2020, 46(3): 45-48 |
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| 作者姓名： | 钱龙 王刚 许丽娜 赵云兴 |
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| 作者单位： | 大连理工大学水利工程学院,辽宁 大连,116024;大连连大安全职业卫生技术服务中心有限公司,辽宁 大连,116021 |
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| 基金项目： | 国家自然科学基金青年基金项目(51309048)。 |
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| 摘 要： | 根据可靠指标的几何涵义可将可靠度计算问题作为求极小值的优化问题求解,借此引入改进的差分进化(DE)算法对某重力坝多斜面的抗滑稳定可靠指标进行计算。工程实例研究及随机参数敏感性分析表明,与工程中通常采用的蒙特卡洛(MC)方法相比,该方法的计算结果合理且效率较高,可处理可靠度计算中极限状态方程为复杂隐式非线性方程组的情况,为重力坝可靠度分析提供了新的有效的计算方法。
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| 关 键 词： | 结构可靠度 抗滑稳定 差分进化(DE)算法 重力坝 |
Reliability Analysis on the Anti-sliding Stability of Gravity Dam Multi-slope Foundation Based on Differential Evolution Algorithm |
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| QIAN Long,WANG Gang,XU Li na,ZHAO Yunxing. Reliability Analysis on the Anti-sliding Stability of Gravity Dam Multi-slope Foundation Based on Differential Evolution Algorithm[J]. Water Power, 2020, 46(3): 45-48 |
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| Authors: | QIAN Long WANG Gang XU Li na ZHAO Yunxing |
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| Affiliation: | (Schoolof Hydraulic Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China;Dalian Lianda Safety and Occupational Health Technology Service Center Co.,Ltd.,Dalian 116021,Liaoning,China) |
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| Abstract: | Based on the geometry significance of reliability index,the solution of reliability can be converted to the optimization of minimum problem.Based on above,the improved differential evolution(DE)algorithm is introduced to calculate the reliability index of the multi-slope foundation of a gravity dam.The engineering case and the sensitivity analysis of random parameters show that the results of this method are more reasonable and efficient compared with the Monte Carlo(MC)method commonly used in engineering.The DE method can deal with the case that the limit state equation is complex implicit nonlinear equations in reliability calculation,and provide a new and effective method for the reliability analysis of gravity dam. |
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| Keywords: | structural reliability anti-sliding stability differential evolution(DE)algorithm gravity dam |
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