感潮区不同河道属性的河口挡潮闸规模论证  

Demonstration of the Scale of Tidal Sluice in Estuarine with Different River Properties in Tide-Sensing Area

作　　者：朱方敏 ZHU Fangmin(Guangzhou Water Planning and Design Institute Co.,Ltd.,Guangzhou 510640,China)

机构地区：[1]广州市水务规划勘测设计研究院有限公司,广州510640

出　　处：《广东水利水电》2024年第12期52-57,共6页Guangdong Water Resources and Hydropower

摘　　要：为了明确挡潮闸规模的确定方法和设计思路,以河道宽度、调蓄容积等河道属性差异显著的两条河道为例,通过调蓄计算和图表形式展现河口挡潮闸排涝及闸上水位、潮位、排涝流量等的时程关系曲线。图表显示,闸前有较大调蓄容积的二十涌,河道水位最大值由洪水量及调蓄容积确定,挡潮闸闸宽达到8 m后继续增加宽度对排涝基本没有影响;闸前无调蓄容积的鹤洞涌,河口挡潮闸的闸上水位基本与潮位过程一致,需泵闸结合排涝确定。两条河道调蓄计算结果表明,排涝流量最大值往往大于入河洪峰流量。In order to clarify the determination method and design idea of the scale of tide gate,two river channels with significant differences in river properties such as river width and storage capacity were taken as examples to calculate flood drainage regulation and storage,and the time-history relationship curves of flood drainage,water level,tide level and flood discharge of tide gate at estuary were presented through charts.The chart shows that there are 20th River with large storage capacity in front of the gate,and the maximum water level of the river is determined by the flood volume and the storage capacity of the river,while the continuous increase of the width of the tide gate after 8m has little effect on the water level and flood discharge.For Hedong River without storage capacity in front of the sluice,the water level of the tidal sluice at the estuary is basically consistent with the tidal level process,which needs to be determined by combining the pump and sluice with drainage.The calculation results of the two rivers also show that the maximum drainage discharge is often greater than the peak discharge of the inflow river.

关 键 词：挡潮闸 调蓄计算 河道属性 闸孔宽度 

分 类 号：TV66[水利工程—水利水电工程]