灾害学
災害學
재해학
JOURNAL OF CATASTROPHOLOGY
2014年
4期
20-22,42
,共4页
程亮%王宗志%金菊良%刘克琳%吴成国
程亮%王宗誌%金菊良%劉剋琳%吳成國
정량%왕종지%금국량%류극림%오성국
水库防洪风险估计%洪水资源利用%分期汛限水位%秩相关随机变量%洪水模拟
水庫防洪風險估計%洪水資源利用%分期汛限水位%秩相關隨機變量%洪水模擬
수고방홍풍험고계%홍수자원이용%분기신한수위%질상관수궤변량%홍수모의
risk evaluation of reservoir flood control%utilization of flood resources%seasonal flood control wa-ter level%rank correlated random variable%flood simulation
采用基于Spearman秩相关随机变量模拟方法,将拉丁抽样法产生的独立洪峰洪量序列转换成满足特定相关结构的洪峰洪量序列,利用模拟的洪峰和时段洪量放大修匀典型过程线生成入库洪水过程,实现了入库洪水过程随机模拟。采用Monte Carlo法估计防洪风险,构建了水库防洪风险估计模型。潘家口水库汛限水位调整防洪风险估计应用结果表明:主汛期汛限水位上限值控制在218.00 m,所建立的入库洪水过程模拟方法简便有效,非常适合于复杂洪水过程模拟,构建的防洪风险分析模型计算结果客观合理,在洪水资源安全利用系统风险分析中具有推广应用价值。
採用基于Spearman秩相關隨機變量模擬方法,將拉丁抽樣法產生的獨立洪峰洪量序列轉換成滿足特定相關結構的洪峰洪量序列,利用模擬的洪峰和時段洪量放大脩勻典型過程線生成入庫洪水過程,實現瞭入庫洪水過程隨機模擬。採用Monte Carlo法估計防洪風險,構建瞭水庫防洪風險估計模型。潘傢口水庫汛限水位調整防洪風險估計應用結果錶明:主汛期汛限水位上限值控製在218.00 m,所建立的入庫洪水過程模擬方法簡便有效,非常適閤于複雜洪水過程模擬,構建的防洪風險分析模型計算結果客觀閤理,在洪水資源安全利用繫統風險分析中具有推廣應用價值。
채용기우Spearman질상관수궤변량모의방법,장랍정추양법산생적독립홍봉홍량서렬전환성만족특정상관결구적홍봉홍량서렬,이용모의적홍봉화시단홍량방대수균전형과정선생성입고홍수과정,실현료입고홍수과정수궤모의。채용Monte Carlo법고계방홍풍험,구건료수고방홍풍험고계모형。반가구수고신한수위조정방홍풍험고계응용결과표명:주신기신한수위상한치공제재218.00 m,소건립적입고홍수과정모의방법간편유효,비상괄합우복잡홍수과정모의,구건적방홍풍험분석모형계산결과객관합리,재홍수자원안전이용계통풍험분석중구유추엄응용개치。
A flood risk evaluation model based on sampling rank correlated random variables is introduced.In the model the Latin sampling method is used to generate independent flood peak and volume series,and a correla-ted random variables sampling method inducing the desired spearman correlation rank correlation coefficient matrix is used to convert the independent series to related series.The flood process is amplified and smoothed by the typi-cal hydrograph and the simulated flood peak and volume series.The flood control risk rate is evaluated by Monte Carlo simulation.This model is applied to Panjiakou reservoir located in Luanhe river basin.Two conclusions are reached:1)The upper limit of flood control water level for the main flood season is 218.00 m;2)The flood process simulation model is simple to use and effective and the flood risk analysis result was objective and reasona-ble.The proposed method is suitable for risk analysis of flood resources utilization.