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In response to the problem of finding a practical, robust, and efficient optimization algorithms in hydrological simulation forecasting and determining the global optimal solution of parameters based on them, the Wucha section, a typical control section in the Qijiang River Basin, was selected as the research object. Four optimization algorithms, GA、 SCE-UA、CMA-ES、PSO, were selected to calibrate the convergence parameters of the distributed Xin’anjiang model. The parameter calibration performance of the algorithm was evaluated from four aspects: effectiveness, stability, time consumption, and efficiency. The results show that CMA-ES algorithm has the best optimization effect and the least time consumption under the same number of iterations. SCE-UA algorithm has the highest stability and efficiency, but its time consumption significantly increases with the increase of iteration times. PSO algorithm has relatively better effectiveness and efficiency, but the stability is the worst. GA algorithm takes relatively less time and has the worst optimization effect and efficiency. The comprehensive property is ranked from best to worst as CMA-ES, SCE-UA, PSO, and GA algorithms. © 2023, Editorial Board of Water Resources Protection. All rights reserved. 相似文献
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在三峡水电站工程建设过程中,建设监理在指导思想、组织建设和协调各方关系等方面取得了显著的成效。目前,三峡水电站工程已进入收尾阶段,监理管理工作与主体工程施工阶段相比有较大差异。文章结合三峡水电站工程收尾阶段工程特点对现阶段监理管理情况进行简述,以便更多的人士了解三峡水电站工程监理管理的特点。 相似文献
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针对变态混凝土施工中加浆均匀性这一工程难题,采用试验室内模拟成孔注浆试验的方法,自行制作试验装置,通过试验室模拟注浆试验,研究影响变态混凝土浆液扩散的相关因素,以求更深入地认识注浆浆液的渗透规律。结合室内试验的结果,用1stOpt软件拟合出了扩散半径与影响因素之间的函数关系式,并通过正交分析,确定了各影响因素对扩散半径的影响从大到小排序为:单孔注浆量、水胶比、平均颗粒直径、注浆压力。该试验研究不但有助于认识注浆浆液渗透规律,还可以快速指导变态混凝土成孔注浆施工。 相似文献
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地应力的大小是引起各种地下或露天岩土开挖工程产生岩爆破坏的根本原因。文章以岩石地应力模拟理论为基础,结合某水电站导流洞隧道开挖过程,采用ANSYS有限元分析软件对岩石地应力场分布变化情况进行计算分析,分析结果合理。 相似文献
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