中国铁道科学2012，Vol.33Issue(z1)：7-11,59,6.DOI:10.3969/j.issn.1001-4632.2012.S1.02
稀性泥石流拦挡坝坝后淤积及坝前冲刷规律的实验研究
Experimental Study on the Laws of Intercepted Sediments behind Dam and Scour before Dam of Diluted Debris Flow
摘要
Abstract
The influences of the height of diluted debris flow check dam and the longitudinal river slope on the slope of intercepted sediments behind the dam were studied by indoor simulation experiment. The configuration of intercepted sediments behind check dam as well as the length and depth of scour hole in front of the dam were also investigated. Simulation experiments show that, the relationship between longitudinal river slope and the slope of intercepted sediments behind the dam is positive correlation. As the longitudinal river slope is 12%, 14%, 16%, 18% and 20%, the corresponding average slope of intercepted sediments is 8. 08%, 10. 08%, 11. 88%, 14. 02% and 15. 63% respectively. With different height-of-dam, the slope of intercepted sediments grows variably with the linear increase of each longitudinal river slope. The height of dam and the slope of intercepted sediments behind the dam are in quadratic function relation. When the longitudinal river slope is constant, the slope of intercepted sediments increases first and then decreases with the increase of the height of dam. The experiment results can provide references for check dam design and model experiment of intercepted sediments behind the dam.关键词
稀性泥石流/拦挡坝/回淤坡度/淤积形态/冲刷坑Key words
Diluted debris flow/ Check dam/ Slope of intercepted sediments/ Configuration of intercepted sediments/ Scour hole分类
天文与地球科学引用本文复制引用
李峰,马东涛,马建军..稀性泥石流拦挡坝坝后淤积及坝前冲刷规律的实验研究[J].中国铁道科学,2012,33(z1):7-11,59,6.基金项目
成都理工大学地质灾害防治与地质环境保护国家重点实验室开放基金资助项目(GZ2007-15) （GZ2007-15）
中国中铁二院科研项目 （）
