基于供水风险分析的汛限水位控制范围研究

Study on the control range of reservoir′s flood limit water level based on water supply risk

以大连市碧流河水库为例,根据大连市供用水系统的风险及其变化过程,分析超蓄洪水资源的利用情况及其效益,并在对抬高水库汛限水位造成的淹没损失分析的基础上,利用边际成本分析方法确定控制的范围。计算结果表明,随着大连市用水量的增加,碧流河水库汛限水位可适当抬高。

Based on the water supply risk and its variable process of Dalian city, this paper proposes a cost-benefit analysis method for flood resources to inquire into the control range of the reservoir's flood limit water level, according to the use course of the flood resources and flood range analysis. The result of a case study demonstrates that the proposed flood limit water level of Biliuhe reservoir can go up suitably, along with the step-by-step raise of water supply.