岩土力学2017，Vol.38Issue(5)：1281-1288,8.DOI:10.16285/j.rsm.2017.05.007
考虑滑道坡度和宽度的滑坡模型试验研究
Model test study of the effect of slope angle and chute width on landslide
摘要
Abstract
Laboratory model tests are performed to study the characteristics of movement and accumulation of landslide-debris under different constraints.The effects of the gradient of slope and the chute sidewall on the accumulation scope and accumulation characteristics are investigated.Testing results show that when slope angle increases,the fmal run-out and accumulation area increase for the fine particles deposit,but for the coarse particles deposit,they increase first and subsequently decrease.However,for both of deposits,the accumulation width decreases and the thickness increases.The landslide movement is obviously influenced by the chute width.With the increase of the chute width,the final run-out slightly increases,the accumulation area and width significantly increase,while the accumulation thickness becomes smaller.The chute outlet width is a significant factor to influence the final accumulation scope,while the influence of the chute entrance width is relatively small.Theoretically,experimental results contribute to the study of accumulation scope and the form of landslide-debris.关键词
模型试验/滑坡-碎屑流/坡度/滑道宽度/堆积范围Key words
model experiment/landslide-debris/gradient of slope/chute width/accumulation scope分类
建筑与水利引用本文复制引用
雷先顺,朱大勇,刘诚,卢坤林,陈菊香..考虑滑道坡度和宽度的滑坡模型试验研究[J].岩土力学,2017,38(5):1281-1288,8.基金项目
国家自然科学基金项目(No.51179043),水利部公益项目(No.201401063).This work was supported by the National Natural Science Foundation of China (51179043).the Public Welfare Profession Special Scientific Research Foundation of Ministry of Water Resources of China(201401063). （No.51179043）
