降雨型泥石流对沟床侵蚀的水力学机理 | |
吴永![]() ![]() ![]() | |
刊名 | 浙江大学学报(工学版)
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2013 | |
卷号 | 41期号:9页码:64-71. |
关键词 | 降雨型 泥石流 沟床侵蚀 水力学机理 |
其他题名 | Hydraulic mechanism of gully bed erosion by debris flow in rainfall |
通讯作者 | 吴永 |
中文摘要 |
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英文摘要 | Based on the water lever model of debris flow established according to hydrology, and by aid of hydraulic theory, the erosion mechanism of gully bed under flow shear stress and seepage hydraulic was studied. After studying the calculation methods for flow shear stress, pore water pressure, static pressure and gully bed weight, the critical erosion depth of gully bed by debris flow was proposed. By discussing the influences of rainfall pattern, gully geometric parameters and flow property to debris flow pattern and its erosion characteristics with an example, the way to calculate erosion was illustrated. The result indi- cates that the erosion becomes weak with the incensement of depth of base material, and only occurs above on a critical erosion depth in gully bed; with different rainfall conditions, gully geometric character and debris flow property, the flow depth and velocity changes greatly, which effects the gully bed erosion directly. |
分类号 | P642.23 |
收录类别 | EI |
资助信息 | 国家自然科学基金资助项目(41202258);深部岩土力学与地下工程国家重点实验室基金资助项目(SKLGDUEK1107);地质灾害防治与地质环境保护国家重点室基金资助项目(SKLGP2012K023,SKLGP2013K012);国家科技支撑计划资助项目(2011BAK12B03);西部之光资助项目(Y2R2210210);山地所博士基金资助项目(110900K251);中国交通建设资助项目(2011-2JKJ-04) |
语种 | 中文 |
公开日期 | 2013-12-18 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/6636] ![]() |
专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
推荐引用方式 GB/T 7714 | 吴永,李新坡,何思明. 降雨型泥石流对沟床侵蚀的水力学机理[J]. 浙江大学学报(工学版),2013,41(9):64-71.. |
APA | 吴永,李新坡,&何思明.(2013).降雨型泥石流对沟床侵蚀的水力学机理.浙江大学学报(工学版),41(9),64-71.. |
MLA | 吴永,et al."降雨型泥石流对沟床侵蚀的水力学机理".浙江大学学报(工学版) 41.9(2013):64-71.. |
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