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Modeling and Analysis of the Coupling Wear Random Process of Debris Flow Drainage Structure

Wang Yongsheng1,2，Zhu Yanpeng1,2，Jin Peihao3   

  1. 1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou730050, China;
    2. College of Civil Engineering, Lanzhou University of Technology, Lanzhou730050, China;
    3. Changzheng Space Chemical Engineering Co., LtD,Lanzhou Branch, Lanzhou730050, China
  • Received:2012-10-12 Online:2013-09-26 Published:2013-09-26

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Abstract:

The debris flow drainage structure plays a significant role in reducing damage of the surrounding buildings.  However, most drainage structures can not efficiently resist the strong wear of erosion and corrosion caused by bad surroundings. The wear erosion and corrosion mechanism of debris flow drainage structure was analyzed, and the analytical model of coupling wear for debris flow drainage structure was proposed using related computational formula. Considering the time dependence and randomness of wear process, the coupling wear random model was built, and the distribution function of coupling wear value at any time was derived to estimate the dynamic reliability and probability life of wear structure. Finally, a specific example was used to testify the practical applicability of this model, which may provided a theoretical reference for wear quantitative evaluation of debris flow drainage structure.

Key words: debris flow, drainage structure, coupling wear, random process, calculation model

CLC Number: 

  • P642.23
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