Volume 4 Issue 4
Dec.  2011
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Xin CAI, Ying-li WU, Jian-gang YI, Yu MING. 2011: Research on shape optimization of CSG dams. Water Science and Engineering, 4(4): 445-454. doi: 10.3882/j.issn.1674-2370.2011.04.008
Citation: Xin CAI, Ying-li WU, Jian-gang YI, Yu MING. 2011: Research on shape optimization of CSG dams. Water Science and Engineering, 4(4): 445-454. doi: 10.3882/j.issn.1674-2370.2011.04.008

Research on shape optimization of CSG dams

doi: 10.3882/j.issn.1674-2370.2011.04.008
Funds:  This work was supported by the National Natural Science Foundation of China (Grant No. 51179061), and the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20100094110014).
More Information
  • Corresponding author: Xin CAI
  • Received Date: 2011-05-18
  • Rev Recd Date: 2011-09-29
  • The multi-objective 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 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.

     

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