中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
泥石流输沙及其对山区河道的影响

文献类型:期刊论文

作者崔鹏
刊名山地学报
出版日期2006
卷号24期号:5页码:539-549
关键词泥石流 输沙 冲淤 交汇 河床演变
其他题名Debris Flow Sediment Transportation and Its Effects on Rivers in Mountain Area
通讯作者崔鹏
合作状况其它
中文摘要泥石流能在很短时间内将大量大小混杂的固体物质输入主河,影响主河河床演变,形成灾害。在连续观测资料的基础上,对泥石流输沙的强度、级配和时空分布特征进行了分析。通过实际测量,分析了泥石流在沟道内冲淤特征以及影响泥石流冲淤特征的因素,如泥石流活动规模和局部沟道条件等。通过水槽实验,分析了泥石流与主河交汇的机理,将泥石流入汇主河的模式概括为播混模式、潜入模式、推进模式和堵河模式,并且从能量角度阐释了汇流区的水沙交汇特征,提出了泥石流堵江的判据。最后,分析了泥石流多发区受泥石流入汇影响,主河河床在平面形态、横断面形态、纵断面形态和河型等方面的变化特征。
英文摘要Debris flow,mixing big solid matter with small ones,may transport large quantity of sediment into river
in very short time,which consequently affect riverbed evolution and cause disasters.Firstly,the characteristics of
debris.flow sediment transportation such as intensity,granule gradation and space—time variation were discussed on
the base of continuous observation data.Then。the scouring and silting characteristics of debris flow and their affecting
factors including debris flow scale and local channel condition were explored by analyzing field survey data.
In addition,through flume experiments,the mechanism of debris flow interacting Of main fiver was studied.And
patterns of debris flow interjecting in the main river were generalized as debris flow mixing up with water in main
river,debris flow diving in the water of main fiver,debris flow advancing straightly with the approximate same flow
level of the main river,and debris flow blocking up main channe1.Moreover,the movement characteristics of deb—
ris flow and sediment in confluence were expounded in terms of energy,and the criterion of debris flow dogging riv—
er was put forward.At last,the evolution of riverbed in planar shape,transect,longitudinal section and fiver pattern
influenced by debris flow were discussed.
分类号P642.23;TV147
资助信息国家杰出青年科学基金(40025103);国家自然科学基金重点项目(49831010)
语种中文
公开日期2010-07-21
源URL[http://ir.imde.ac.cn/handle/131551/1056]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
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
崔鹏. 泥石流输沙及其对山区河道的影响[J]. 山地学报,2006,24(5):539-549.
APA 崔鹏.(2006).泥石流输沙及其对山区河道的影响.山地学报,24(5),539-549.
MLA 崔鹏."泥石流输沙及其对山区河道的影响".山地学报 24.5(2006):539-549.

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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