人民长江
人民長江
인민장강
YANGTZE RIVER
2009年
14期
57-59
,共3页
蓄洪垸%超额水量%运用几率%模型%洞庭湖区
蓄洪垸%超額水量%運用幾率%模型%洞庭湖區
축홍완%초액수량%운용궤솔%모형%동정호구
flood storage polder%extra-flood%operation probability%model%the Dongtion Lake area
采用水文学与水力学方法以及两种方法相结合的洪水调度模型分析洞庭湖区历年大洪水的超额水量,根据"洞庭湖区非常洪水调度方案"及调度模型控制蓄洪垸的启用,从而求出各蓄洪垸的运用几率.并分析了三峡建库以后各蓄洪垸运用几率的变化.洞庭湖区能够有计划地运用部分乃至全部蓄洪垸蓄滞超额洪水,对洞庭湖区最大程度地减少洪灾损失有重大意义.
採用水文學與水力學方法以及兩種方法相結閤的洪水調度模型分析洞庭湖區歷年大洪水的超額水量,根據"洞庭湖區非常洪水調度方案"及調度模型控製蓄洪垸的啟用,從而求齣各蓄洪垸的運用幾率.併分析瞭三峽建庫以後各蓄洪垸運用幾率的變化.洞庭湖區能夠有計劃地運用部分迺至全部蓄洪垸蓄滯超額洪水,對洞庭湖區最大程度地減少洪災損失有重大意義.
채용수문학여수역학방법이급량충방법상결합적홍수조도모형분석동정호구력년대홍수적초액수량,근거"동정호구비상홍수조도방안"급조도모형공제축홍완적계용,종이구출각축홍완적운용궤솔.병분석료삼협건고이후각축홍완운용궤솔적변화.동정호구능구유계화지운용부분내지전부축홍완축체초액홍수,대동정호구최대정도지감소홍재손실유중대의의.
The extra-flood in past years in the Dongting Lake area are analyzed mainly by hydrological method, hydrodynamics method and flood regulation model combined hydrological method and hydrodynamics method. According to "the regulation scheme of abnormal flood in the Dongting Lake area" and regulation model for controlling operation of flood storage polders, the operation probability of various flood storage polders are calculated and the variation of operation probability of the flood storage polders after TGP completion is analyzed. To store extra-flood by partial polders or all polders in the Dongting Lake area in a planned way has important significance for mitigating flood disaster loss to the greatest extent.
