深沱孤礁泡漩水形成特性试验研究

Experimental study on characteristics of boil-eddy flow in deep-pool and detached rock

摘要: 泡漩水险滩是山区河流中典型的碍航险滩之一,由于泡漩水险滩的存在,山区河流不仅通航能力低,甚至发生海损事故.弄清泡漩水形成条件、产生原因以及影响泡水强度的主要因素,是消除泡漩隐患的前提.针对顺直河段深沱孤礁地形产生的泡漩水进行了32组概化模型试验.通过试验和理论分析,找出了深沱孤礁地形泡漩水产生的条件,分析了这种地形泡漩水产生的原因以及影响泡水强度的主要因素,并对各因素进行相关分析,得出了泡水高度与各因素之间的量化关系式.将泡高的计算值与实测值进行比较,结果发现二者吻合较好.

Abstract: The boil-eddy flow is one of the typical bad flow obstructing navigation,which is the reason why the navigation is obstructed and even maritime damages happen in the mountain rivers.So,making clear the formation condition,reasons and the main influencing factors on the boil-eddy flow is the premise of eliminating the boil-eddy trouble.In this paper,characteristics of the boil-eddy flow in deep pool and detached rock along straight reach have been studied by generalized model tests of 32 groups in flume.Thro...