摘要
本文通过堰塞坝漫顶溃坝模拟实验,将堰塞坝溃坝归纳概括为初始溃口形成、溃口发展、最终稳定三个阶段。在其他参数相同的情况下,通过对3组实验流量变化的比较,研究了坝体高度、长度与洪峰流量、洪峰来临时间、洪峰持续过程的相互关系,并研究了溃口形状特点,对相关工程应用有一定借鉴意义。
In the paper,weir dam breaks are concluded into three stages of initial dam break formation,dam development and ultimate stability through weir dam overflow dam break simulation experiment. Under the condition that other parameters are the same. Experiment flow changes of the three groups are compared for studying mutual relationship between dam height and length with flood peak flow, flood peak coming time and flood peak duration, and the characteristics of break shapes are studied,thereby providing certain reference significance for related projects.
引文
[1]严祖文,魏迎奇,彩虹.堰塞坝形成机理及稳定性分析[J].中国地质灾害与防治学报,2009,20(4):55-59.
[2]聂高众,高建国,邓砚.地震诱发的堰塞湖初步研究[J].第四纪研究,2004,24(3):293-301.
[3]任强,陈生水,钟启明,等.堰塞坝的形成机理与溃决风险[J].水利水电科技进展,2011,31(5):30-34.
[4]魏勇,许开立,郑欣.常见溃坝模型综述[J].工业安全与环保,2009,35(4):45-60.
[5]魏红艳,余明辉,梁艳洁.无粘性土堤漫顶溃决水流运动试验研究[J].水科学进展,2011,22(4):532-538.
[6]陈生水,钟启明,陶建基.土石坝溃决模拟及水流计算研究进展[J].水科学进展,2008,19(6):903-910.
[7]杨阳,曹叔尤.堰塞坝溃决机理实验研究[J].水力学报,2012,43(2):60-67.
[8]张淑玉,闻喜县土石坝溃坝原因与防治对策[J].中国水利,2010,(12):44-47.