|
|||||
|
|
| 泥石流排导结构耦合磨损随机过程建模及分析 | |
| 引用本文： | 王永胜,朱彦鹏,金培豪.泥石流排导结构耦合磨损随机过程建模及分析[J].吉林大学学报(地球科学版),2013,43(5):1556-1562. |
| 作者姓名： | 王永胜 朱彦鹏 金培豪 |
| 作者单位： | 1．兰州理工大学甘肃省土木工程防灾减灾重点实验室，兰州730050; 2．兰州理工大学土木工程学院，兰州730050; 3．航天长征化学工程股份有限公司兰州分公司，兰州730050 |
| 基金项目： | 国家科技支撑计划项目(2011BAK12B07) |
| 摘 要： | 泥石流排导结构对于减轻泥石流对周围建筑物的损毁起到了显著作用，但目前大多数排导结构难以抵御泥石流的强烈侵蚀磨损和周围环境恶劣时伴随产生的腐蚀磨损。首先，通过分析泥石流排导结构侵蚀和腐蚀磨损机理，应用相关磨损量计算公式，提出了考虑侵蚀和腐蚀的泥石流排导结构耦合磨损计算公式。然后,以此为基础，针对磨损过程的动态性和随机性，建立了泥石流排导结构耦合磨损随机过程模型，推导了任意时刻磨损量的分布函数，实现了评估泥石流排导结构的动态可靠性和概率失效时间。最后，通过具体算例分析验证了模型的实用性，可为今后泥石流排导结构的磨损定量评估提供理论参考。 |
| 关 键 词： | 泥石流 排导结构 耦合磨损 随机过程 计算模型 |
| 收稿时间： | 2012-10-12 |
Modeling and Analysis of the Coupling Wear Random Process of Debris Flow Drainage Structure |
|
| Wang Yongsheng;Zhu Yanpeng;Jin Peihao.Modeling and Analysis of the Coupling Wear Random Process of Debris Flow Drainage Structure[J].Journal of Jilin Unviersity:Earth Science Edition,2013,43(5):1556-1562. | |
| Authors: | Wang Yongsheng;Zhu Yanpeng;Jin Peihao |
| Institution: | 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 |
| 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. |
| Keywords: | debris flow drainage structure coupling wear random process calculation model |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《吉林大学学报(地球科学版)》浏览原始摘要信息 | |
| 点击此处可从《吉林大学学报(地球科学版)》下载免费的PDF全文 | |