粘性泥沙絮凝现象研究述评(1):絮凝机理与絮团特性  

A Review on Aggregation Phenomena for Cohesive Sediment(Ⅰ): Mechanism for Aggregation and Properties of Flocs

作　　者：张庆河[1] 王殿志[1] 吴永胜[2] 练继建[1] 赵子丹[1] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]清华大学水利水电工程系,北京100064

出　　处：《海洋通报》2001年第6期80-90,共11页Marine Science Bulletin

基　　金：国家自然科学基金(59709006);大连理工大学海岸和近海工程国家重点实验室基金;华东师范大学河口海岸国家重点实验室开放基金资助

摘　　要：絮凝现象是河口海岸细颗粒粘性泥沙研究的关键问题,它影响到泥沙运动的基本规律乃至河口海岸地理或环境的演变?由于问题的复杂性,目前对于粘性泥沙絮凝机理?絮凝影响因素及絮团沉降规律等还不是十分清楚?本文就近年来国内外对细颗粒泥沙絮凝现象,特别是絮团特性的研究进行了系统的总结,评价了部分研究成果,指出了需要进一步研究的问题?Aggregation phenomena are key problems of researches on cohesive sediments in estuaries and on coasts because they affect the basic transport properties of sediments and even morphological and environmental evolution. The present understanding on the aggregation mechanism, the influence factors on the aggregation and the floc settling is still not very clear due to the complexity of the aggregation. The recent researches on the aggregation phenomena of fine-grained cohesive sediments, the properties of flocs in particular, are reviewed and evaluated. The problems to be studied are pointed out.

关 键 词：粘性泥沙 絮凝机理 絮团特性 泥沙运动 河口 布朗运动 不等速沉降 

分 类 号：TV14[水利工程—水力学及河流动力学]