滁河分洪道马汊河洪潮遭遇分析

Analysis on flood-tide encounter of Macha River in Chu River Flood Diversion

为研究马汊河洪潮遭遇规律,采用定性分析法,分析其代表站葛塘站水位与上游汊河集闸站流量和下游南京站潮位的关联性。分析结果表明,马汊河水位既受上游洪水影响,又受下游潮位的影响,高重现期时受上游洪水影响更明显。采用图示法表示洪潮遭遇相关性,提出2种洪潮组合方案,可为滁河流域防洪决策提供参考。

In order to study the law of flood-tide encounter of Macha River,qualitative analysis is used to analyze the correlation between the water level of its representative station,Getang Station,and the discharge of upstream Chaheji Sluice station and the tide of Nanjing station.The results show that both upstream flood and downstream tide show impact on the water regime of Macha River.Upstream flood affects more when the highest water level is in high recurrence period.Two flood-tide combination scheme on the basis of illustrating the correlation of flood-tide encounter are proposed,which can provide decision-making references for the flood control of Chu River Basin.