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A Case Study of Complex Policy Design: The Systems Engineering Approach
Design, structure, modelling, and analysis of complex systems can significantly benefit from a systematic approach. One way to address a complex system using a systematic approach is to combine creative and analytical methods, such as general morphological analysis and design structure matrix. The aim is to propose a framework to address complex systems in two stages: first, formulation and generation of alternatives through general morphological analysis, and second, improvement and integration with design structure matrix for sequence optimization and cluster analysis. Moreover, general morphological analysis is further optimized through a novel sensitivity analysis approach reducing up to 80% the iteration time. The proposed approach is showcased in a case study of sustainable policy formulation for a wastewater treatment plant at a pulp and paper industry in Brazil. The results show that it is possible to generate a solution space that highlights the best possible combinations o...
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Towards an optimization design of seepage control: A case study in dam engineering
- Published: 23 November 2017
- Volume 60 , pages 1903–1916, ( 2017 )
Cite this article
- Xing Li 1 ,
- YiFeng Chen 1 ,
- Ran Hu 1 &
- ZhiBing Yang 1
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High dams generally suffer from higher seepage risks in their foundations, and seepage control is an important technology for limiting the amount of leakage and improving the stability of the foundations. In this study, a procedure was proposed for optimization design of seepage control system in large-scale hydropower projects, which relies on sufficient characterization of site conditions and proper quantification of the performance of the seepage control system. The proposed procedure was applied to the design of seepage control system in the Mengdigou Hydropower Station consisting of a double-curvature arch dam 201 m in height. An optimized layout of the seepage control system, including the extended length of grout curtain, the rows of grouting holes and the spacing of drainage holes, was suggested. The proposed procedure provides a guide with lower risk and higher confidence for performance assessment and optimization design of seepage control systems in high dam engineering.
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Li, X., Chen, Y., Hu, R. et al. Towards an optimization design of seepage control: A case study in dam engineering. Sci. China Technol. Sci. 60 , 1903–1916 (2017). https://doi.org/10.1007/s11431-016-9160-y
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Received : 11 August 2016
Accepted : 12 October 2017
Published : 23 November 2017
Issue Date : December 2017
DOI : https://doi.org/10.1007/s11431-016-9160-y
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