高州市泗水镇龙胆塘水库防洪能力复核分析

Reassessment Analysis of Flood Control Capacity of Longdantang Reservoir in Sishui Town,Gaozhou City

水库防洪能力复核是水库安全评价工作中的一项重要内容。选取高州市泗水镇龙胆塘水库为分析对象,对其防洪能力进行复核分析。首先,利用综合单位线法与推理公式法对设计洪水进行复核计算;其次,根据水量平衡原理进行水库调洪计算;然后,在此基础上进行大坝坝顶高程和泄洪能力复核;最后,对该水库防洪能力进行综合评价。结果表明:高州市泗水镇龙胆塘水库的防洪能力满足各项要求,大坝防洪安全性为B级。研究成果可为其他水库的防洪能力复核工作提供参考。

The reassessment of flood control capacity is an important aspect of reservoir safety evaluation.Taking Longdantang Reservoir in Sishui Town,Gaozhou City as the analysis subject,a reassessment analysis of its flood control capacity was conducted.Firstly,the design flood was reassessed using the comprehensive unit hydrograph method and deductive formula method.Secondly,reservoir regulation calculations were performed based on the principle of water balance.Subsequently,a reassessment of dam crest elevation and spillway capacity was conducted.Finally,a comprehensive evaluation of the flood control capacity of the reservoir was carried out.The results indicate that the flood control capacity of Longdantang Reservoir in Sishui Town,Gaozhou City,meets all requirements,and the flood safety of the dam is rated as Class B.The research results can provide reference for the reassessment of flood control capacity in other reservoirs.