Experimental Study on Self-burial Characteristics of Transversal Pipeline
Aiming at the problem of broken pipelines that are prone to water flow erosion,leading to leakage of trans-portation media,experiments were conducted to study the self-burial characteristics of transversal pipeline,and the process of pipeline self-burial and the characteristics of topographic profile were observed.And then the factors influen-cing the degree of pipeline self-burial was analyzed.The results indicate that under certain hydraulic conditions,when the transversal pipeline has a certain initial embedment degree,the sediment at the bottom of the pipeline will not be washed through,and the pipeline will be buried by sediment instead,with obvious self-burial characteristics.The slope of the buried slope before and after the transversal pipeline tends to stabilize.The relative burial distance behind pipeline L/D increases with increase of Froude number Fr and decreases with the initial embedding degree e/D.
万方数据
维普
