六垛南闸闸下淤积现状分析  

Analysis of current situation of sediment deposition in downstream area of Southern Liuduo Gate

作　　者：刘涛[1] 孙洪滨[2] 唐洪武[1] 周和平[2] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]江苏省灌溉总渠管理处,江苏淮安223200

出　　处：《水利水电科技进展》2008年第1期54-57,61,共5页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(50479068);新世纪优秀人才支持计划(NCET-04-0494)

摘　　要：针对我国在滨海河口地区修建的挡潮闸在河口建闸后普遍存在的泥沙淤积问题,根据苏北灌溉总渠入海口六垛南闸等处的实测资料,分析该挡潮闸下潮汐引河通道冲淤特性,指出挡潮闸下引河的潮流特性、潮流挟沙特性及引河淤积的原因。认为对闸门进行科学合理的控制、有效利用上游有限的泄水量和闸下落潮水流拖淤来防淤减淤是较为简便易行且经济的措施。In consideration of the sediment deposition in Binhai Estuary after the construction of a tidal barrier gate in this area, an analysis was performed of scouring and silting characteristics in downstream channel of the tidal barrier gate based on the measured data at the Southern Liuduo Gate at ocean outfall of the general irrigation canal in North Jiangsu Province. The characteristics of sediment-laden tidal flow and the cause of channel deposition in the downstream area of the tidal barrier gate were pointed out. It is concluded that the rational control and effective utilization of limited discharge from the upstream and ebb-tide current from downstream area for sediment scouring and desilfing is a simple and economical measure.

关 键 词：挡潮闸 泥沙淤积 潮汐水流 冲淤减淤 闸门调度 六垛南闸 

分 类 号：TV148.1[水利工程—水力学及河流动力学]