中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2005, Vol. 24 ›› Issue (6): 116-118,125.

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基于泥石流弯道流速的沟床糙率计算

李丹1, 常旭1, 陈宁生2, 吴国雄1   

  1. 1. 重庆交通学院, 重庆 400074;
    2. 中国科学院、水利部成都山地灾害与环境研究所, 四川 成都 610041
  • 收稿日期:2004-11-02 修回日期:2004-11-29 出版日期:2005-12-15 发布日期:2016-11-09
  • 作者简介:李丹(1974-),男,重庆市人,工程师,从事道路与铁道工程研究
  • 基金资助:
    交通部西部交通建设科技项目"西藏干线公路修筑技术研究"(200131879257)

A calculating method for bed roughness based on debris flow velocity in curve

LI Dan1, CHANG Xu1, CHEN Ning-sheng2, WU Guo-xiong1   

  1. 1. Chongqing Jiaotong University, Chongqing 400074, China;
    2. Institute of Mountain Hazards and Environment Chinese Academy of Sciences & Ministry of Water Conservancy, Chengdu 610041, China
  • Received:2004-11-02 Revised:2004-11-29 Online:2005-12-15 Published:2016-11-09

摘要: 沟床糙率是泥石流流速计算的重要参数,由于理论计算十分复杂,在实际计算中人们多采用经验方法来确定,但这样使得流速计算会产生较大的误差.本文基于弯道超高现象以及弯道流速计算的改进,得出了一种较为实用的泥石流沟床糙率计算方法.

关键词: 泥石流, 弯道超高, 沟床糙率, 流速

Abstract: Bed roughness is the important parameter of debris flow velocity. Because the theoretic calculation is very complex, so the experimental method is used often, Sometimes the method will bring about calculation error. On the basis of freeboard phenomenon in curve way and the improvement of curve flow velocity, this paper gets a useful calculating method of bed roughness.

Key words: debris flow, freeboard in curve, bed roughness, velocity

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