泡漩水形成特性概化模型试验研究

Experimental investigation on characteristic of boil-vortex flow

山区河流中泡漩水险滩碍航严重,目前对泡漩水险滩的整治只能采取现场观察和水工模型试验相结合的办法,西部航道建设迫切需要弄清泡漩水形成机理。通过水槽概化模型试验,找出了产生泡漩水的边界条件和水力条件,分析了影响泡水强度的主要因素,并进行了相关分析,得出了泡水高度和影响因素之间的量化关系式。所得试验结果可为泡漩水险滩的整治提供相关的理论参考依据。

Hazardous passages of boil-eddy type can cause serious accidents in mountainous waterway. But up to now, they are regulated by site observation combining hydraulic model. Therefore, it is very important to recognize clearly the formation mechanisin of boil-vorex flow for western waterway construction. Through generalized flume model tests, we found out the boundary condition and hydraulic condition of formation of boil-vortex flow. By analyzing the main factors influencing the strength of boil-vortex, we obtained the quantitative relation between the boil-height and influencial factor. The results provide a theoretical basis for regulation of boil-vortex shoals.