《Water Science and Engineering》刊登“CSG大坝坝形优化问题的研究”

作者：Xin CAI , Ying-li WU , Jian-gang YI , Yu MING
刊物：《Water Science and Engineering》，2012年4月，第4卷第4期，445-454页
关键词：CSG大坝；坝形优化；灵敏度分析
摘要：本文使用最优化方法对胶凝砂砾石坝（CSG）的坝形进行优化。在优化过程中考虑了经济效益、最大水平位移和最大沉降量对水位变化的敏感度，整体稳定性和整体安全强度。采用三种权重选择方案对大坝进行坝形优化，通过案例分析得出以下结论：对于最理想的横截面上游坝坡和下游坝坡坡比等于1:0.7，胶凝砂砾石坝（CSG）上下游坡比的经验取值范围为1:0.6到1:0.8，优化结果与经验值是基本一致的。因此，该研究对CSG大坝的设计有一定的参考价值。

Research on shape optimization of CSG dams

Authors：Xin CAI , Ying-li WU , Jian-gang YI , Yu MING
Journal：Water Science and Engineering，2012, 4(4): 445-454
Key Word：CSG dam; shape optimization; sensitivity analysis
Abstract：The optimization method was used for shape optimization of cement sand and gravel (CSG) dams in this study. The economic efficiency, the sensitivities of maximum horizontal displacement and maximum settlement of the dam to water level changes, the overall stability, and the overall strength security（安全度） were taken into account during the optimization process. Three weight coefficient selection schemes were adopted to conduct shape optimization of a dam, and the case studies lead to the conclusion that both the upstream and downstream dam slope ratios for the optimal cross-section equal 1:0.7, which is consistent with the empirically observed range of 1:0.6 to 1:0.8 for the upstream and downstream dam slope ratios of CSG dams. Therefore, the present study is of certain reference value for designing CSG dams.

点击此处下载原文

翻译：燕家琪； 审核：安鹏