| 摘要: |
| 【目的】研究典型小流域的坝系优化布局，探讨黄土高原丘陵沟壑区小流域坝系优化方法和模型，为小流域坝系建设和综合治理提供理论依据。【方法】依据系统动力学的原理，采用经验法、动态仿真法和非线性规划法，建立基于拦泥库容、滞洪库容、溢洪道流量综合优化设计的坝系布局优化模型和建坝时序优化模型，并以韭园沟流域为例进行坝系优化布局研究。【结果】（1）在P=1%条件下，坝址优化的最大坝高为龙王庙1号坝，最大坝高为33.97 m，最低坝高为马家沟2号坝，坝高为14.08 m；拦泥滞洪总库容和洪水总量以韭园沟大坝最高，分别为160.78万和29.48万m3。（2）建坝时序优化以王茂沟2号坝、西堰沟村前坝、蒲家坬大坝、三角坪新坝最先建坝，王茂沟1号坝最后兴建（第21年）。【结论】优化研究结果符合实际，对指导韭园沟流域坝系建设具有实践意义，同时可为黄土高原丘陵沟壑区类似小流域的坝系建设提供借鉴。 |
| 关键词: 韭园沟流域 坝系建设 相对稳定性 规划布局 优化模型 |
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| 基金项目:黄河流域水土保持科研基金项目 |
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| Study on relative stability and layout optimization of dam system in Jiuyuangou watershed |
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| Abstract: |
| 【Objective】The relative stability and layout planning optimization of dam system is a hot area of dam construction in the small watershed currently.Through study on the optimization and layout of typical small watershed dam,the paper explored optimization methods and models of Hilly area of Loess Plateau,to provide a theoretical basis for small watershed dam system construction and comprehensive management.【Method】By the principle of system dynamics,the experience method,dynamic simulation method and the non linear programming method,the optimization model about dam layout was established based on intercepting sediment reservoir capacity,flood detention reservoir capacity,spillway flow optimized design and dam system construction timing,and dam system optimization was studied in Jiuyuangou watershed as an example.【Result】(1) As P=1%,the highest dam was Dragon King Temple 1#,33.97 m,the lowest dam Majiagou 2#,14.08 m;the biggest dam on total storage capacity of intercepting sediment detention basin and flood volume was Jiuyuangou dam,respectively,160.78×104 m3 and 29.48×104 m3.(2) The first dam built were Wangmaogou Dam 2#,Xiyangou dams,Pujiagua dam,and Sanjiaoping new dams;The last dam built was Wangmaogou 1#(21 years).【Conclusion】Optimization study has practical significance for dam system construction in Jiuyuangou basin,while being reference for watershed dam construction in similar areas of Loess hilly and gully region. |
| Key words: Jiuyuangou watershed dam system construction relative stability layout optimization planning model |
