谢湘平,王小军,李忠丽,赵神洲

• 1:安阳工学院土木与建筑工程学院

摘要(Abstract)：

泥石流搬运大量漂木造成严重危害。通过模型试验，模拟了水力型泥石流搬运漂木并经缝隙坝调控的整个输移过程，分析了漂木长度、漂木量对泥石流输移过程及缝隙坝调控性能的影响。研究结果表明，漂木长度对泥沙启动、缝隙坝过流模式和堵塞特征有重要影响。随着漂木长度增大，泥沙启动率逐渐减小，稳定的漂木对泥沙具有锚固作用。当漂木长度L_w与缝隙坝开口宽度b的比值L_w/b<1.0时，漂木对缝隙坝泥沙拦截率及坝后泥沙堆积体中影响不大。当1.00.05时对上述过程有一定影响。本研究为深入理解漂木的影响及缝隙坝的优化设计提供了依据。

关键词(KeyWords)： 泥石流;漂木;泥沙输移过程;缝隙坝;调控效果;泥沙;滑坡;灾害效应

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学青年基金资助项目(41907258);; 安阳工学院博士科研启动基金(BSJ2019011)

作者(Author): 谢湘平,王小军,李忠丽,赵神洲

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