CAJ | 학술논문

通过6个洪水指标因子融合了洪水具有时域性和动态性的特征,提出了洪水能级的概念,并建立了模拟退火算法的模糊K-means聚类模型,以它为确定洪水能级的背景模型来量化洪水能级,根据最优目标函数,确定最佳洪水能级的级别数.在此基础上,以北江流域为例,建立了径向辐合型洪水能级跃迁图,从全新的角度论述人类活动影响的利弊.研究结果表明:强干控支措施的实施及水利工程的建立,实现了各支流洪水能级输出的转变,改善了流域的防御性能,由"开放"型转变为防洪能力较强的"防御"型流域,大大降低了干流洪水能级径内跃迁的可能性.科学合理的人类活动有利于干支流洪水能级的削弱,缓解干支流的防洪压力.同时,本研究提出的洪水能级概念及其计算模型具有可拓性,为洪水的分类、频率的计算、洪灾的评估等工作提供了新的起点和思路.
통과6개홍수지표인자융합료홍수구유시역성화동태성적특정,제출료홍수능급적개념,병건립료모의퇴화산법적모호K-means취류모형,이타위학정홍수능급적배경모형래양화홍수능급,근거최우목표함수,학정최가홍수능급적급별수.재차기출상,이북강류역위례,건립료경향복합형홍수능급약천도,종전신적각도논술인류활동영향적리폐.연구결과표명:강간공지조시적실시급수리공정적건립,실현료각지류홍수능급수출적전변,개선료류역적방어성능,유"개방"형전변위방홍능력교강적"방어"형류역,대대강저료간류홍수능급경내약천적가능성.과학합리적인류활동유리우간지류홍수능급적삭약,완해간지류적방홍압력.동시,본연구제출적홍수능급개념급기계산모형구유가탁성,위홍수적분류、빈솔적계산、홍재적평고등공작제공료신적기점화사로.
Based on six flood indexes,presenting time domain and dynamic characteristic,a concept of the flood energy level is proposed in this paper.The fuzzy k-means cluster model with simulation annealing algorithm is used to calculate the flood energy level.The value of flood energy level is obtaind from the most superior objective function.The Beijiang catchment is taken as a case study.The results show that the hydraulic engineering can improve the basin defense performance,which has transferred from an open to a defense basin,with reducing possibility of the flood energy level diameter jumps.The reasonable human activities can weaken the branch flood energy level and alleviate the flood prevention pressure.The concept of flood energy level and its computation model have provided new methods for flood classification,frequency computation and flood disaster appraisal and can be applied in other domains.