Characteristics of runoff processes on unmetalled loess roads under experimental rainfall conditions
文献类型:会议论文
作者 | FENGXIA TIAN; XIUBIN HE; GUIYU LI; SHIQING ZHENG |
出版日期 | 2012-09 |
会议名称 | IAHS-ICCE International Symposium on Erosion and Sediment Yields in the Changing Environment |
会议日期 | 2012.10.11~15 |
会议地点 | 中国 四川 成都 |
关键词 | unmetalled loess roads kinematic wave theory flow depth flow velocity slope gradient |
页码 | 244-250 |
通讯作者 | FENGXIA TIAN |
英文摘要 | 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(-1)) remained similar. |
收录类别 | EI |
会议主办者 | 中国科学院水利部成都山地灾害与环境研究所 |
会议网址 | http://icce2012.csp.escience.cn/dct/page/1 |
会议录 | Erosion and Sediments Yields in the Changing Environment |
语种 | 英语 |
ISSN号 | 0144-7815 |
ISBN号 | 978-1-907161-33-9 |
源URL | [http://192.168.143.20:8080/handle/131551/4774] |
专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
推荐引用方式 GB/T 7714 | FENGXIA TIAN,XIUBIN HE,GUIYU LI,et al. Characteristics of runoff processes on unmetalled loess roads under experimental rainfall conditions[C]. 见:IAHS-ICCE International Symposium on Erosion and Sediment Yields in the Changing Environment. 中国 四川 成都. 2012.10.11~15.http://icce2012.csp.escience.cn/dct/page/1. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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