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排导槽是一种常见的泥石流防治措施,提出了交错齿槛槽定义,即该类槽是指由两束流侧墙及置于其间交错排列的梯级齿槛群构成的一种新型泥石流排导槽,根据流域面积与沟床纵比降可分为3种类型;详细分析了交错槽的结构特征,并根据泥石流的不同阶段阐述了泥石流在交错槽中的流态形式;最后从消能机制、冲刷磨蚀、生态效益等方面将交错槽与东川槽等常规阶梯深潭系统做了比较,指出交错齿槛槽具有明显的优势,为进一步研究泥石流与交错齿槛的作用机制、泥石流在其中的排导特征等打下基础。
Passage guide groove is a common debris flow prevention and control measures, put forward the definition of staggered ravine, that is, this type of groove is by two beam side wall and placed between the staggered steps of the composition of a group of debris flow debris flow According to the basin area and the vertical deviation of the groove bed, the guide groove can be divided into three types. The structural characteristics of the staggered groove are analyzed in detail, and the flow pattern of the debris flow in the staggered groove is described according to the different phases of the debris flow. Mechanism, scour erosion, ecological benefit and other aspects of staggered groove and Dongchuan trough and other conventional ladder deep pool system made a comparison, pointed out that staggered ravine groove has obvious advantages, in order to further study the mechanism of debris flow and staggered sill, debris flow in One of the drainage characteristics lay the foundation.