| Characteristics of runoff processes on unmetalled loess roads under experimental rainfall conditions | |
| 语种 | 英语 |
Tian, Fengxia1 ; He, Xiubin1; Li, Guiyu2; Zheng, Shiqing3
| |
| 2012 | |
| 会议录名 | Erosion and sediment yields in the changing environment (IAHS Publ. 356) |
| 会议录编者/会议主办者 | IAHS |
| 页码 | 244-250 |
| 会议名称 | IAHS international commission on continental erosion symposium |
| 会议日期 | October 11, 2012 - October 15, 2012 |
| 会议地点 | Chengdu |
| 会议举办国 | China |
| 产权排序 | 1 |
| 摘要 | Runoff commonly triggers severe erosion on unmetalled road surfaces and roadside slopes. In this context, this paper explores the use of theoretical analysis of runoff processes for an unmetalled loess road, based on the kinematic wave theory, and explores the key controlling factors. The results of the theoretical analysis are assessed using measured data from simulated rainfall tests on artificial experimental road sections. The results suggested that: (1) the kinematic wave equation is appropriate for describing dynamic processes of overland flow on unmetalled loess roads; (2) the discharge, depth and velocity of runoff on the unmetalled loess roads increased with increasing rainfall intensity, whereas the velocity of runoff increased with increasing slope length; (3) the velocity of runoff increased as flow depth decreased with increasing slope gradient; and (4) unit width discharge on road sections with different slopes under the same rainfall intensity (120 mm h) remained similar. Copyright © 2012 IAHS Press. |
| 关键词 | unmetalled loess roads kinematic wave theory flow depth flow velocity slope gradient |
| ISBN号 | 978-1-907161-33-9 |
| ISSN号 | 0144-7815 |
| 收录类别 | EI |
| EI收藏号 | Accession number:20133616706430 |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.imde.ac.cn/handle/131551/24076 |
| 专题 | 山地表生过程与生态调控重点实验室 |
| 通讯作者 | Tian, Fengxia |
| 作者单位 | 1.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2.China Water Resources Pearl River Planning, Surveying and Designing Co. Ltd., Guangzhou 510610, China; 3.Institute of Soil and Water Conservation, CAS and MWR, Yangling, Shaanxi 712100, China |
| 第一作者单位 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者单位 | 中国科学院水利部成都山地灾害与环境研究所 |
| 推荐引用方式 GB/T 7714 | Tian, Fengxia,He, Xiubin,Li, Guiyu,et al. Characteristics of runoff processes on unmetalled loess roads under experimental rainfall conditions[C]//IAHS,2012:244-250. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 244-.pdf（4025KB） | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | ||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论