[1]刘翠容,姚令侃,陈春光,等.基于异重流理论的潜坝堵河判别方法[J].自然灾害学报,2014,23(05):113-120.[doi:10.13577/j.jnd.2014.0515]
 LIU Cuirong,YAO Lingkan,CHEN Chunguang,et al.A distinguishing method for the river blocking from submerged dam based on the theory of gravity current[J].,2014,23(05):113-120.[doi:10.13577/j.jnd.2014.0515]
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基于异重流理论的潜坝堵河判别方法
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
23
期数:
2014年05期
页码:
113-120
栏目:
出版日期:
2014-10-30

文章信息/Info

Title:
A distinguishing method for the river blocking from submerged dam based on the theory of gravity current
作者:
刘翠容 姚令侃 陈春光 杜翠
西南交通大学 土木学院, 四川 成都 610031
Author(s):
LIU Cuirong YAO Lingkan CHEN Chunguang DU Cui
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
关键词:
泥石流潜坝堵河物质总量
Keywords:
debris flowsubmerged damriver blockingamount of materialdensity current
分类号:
P642.23
DOI:
10.13577/j.jnd.2014.0515
摘要:
针对潜坝堵河也能成灾的现象,基于异重流理论导出了泥石流龙头运动方程;对泥石流龙头运动的影响因素进行了单因素分析。分析表明泥石流粘滞系数和切应力对龙头运动速度的影响不明显,绕流阻力系数对龙头运动速度的影响最大;给出了泥石流龙头在主河里的运移距离随时间的变化曲线,在此基础上给出了潜坝堵河的最小固体物质总量计算式。
Abstract:
For the disaster phenomenon of river-blocking from submerged dam, this study derived an equation for describing the movement of debris flow head based on the density current theory, and analyzed the debris flow head motion using single factor influence. Results show that, the debris flow viscosity coefficient and shear stress have no significant effect on the velocity of the debris flow head, and the greatest influence is the circle resistance coefficient. Then the relationship between the runout distance of debris flow head in main river and time is established, and on this basis, the formula calculating the minimum amount of solids material blocking river by submerged dam is presented.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-10-15;改回日期:2013-11-9。
基金项目:国家"973"计划资助项目(2011CB409902);中国铁路总公司科技研究开发计划重点项目(2013G014-A)
作者简介:刘翠容(1975-),女,副教授,博士生,主要从事铁路公路地质灾害研究. E-mail: liucrong7512@126.com
通讯作者:姚令侃,男,教授. E-mail: yaolk@swjtu.edu.cn
更新日期/Last Update: 1900-01-01