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牛圈沟滑坡离散元数值分析
Alternative TitleDiscrete element numerical analysis of Niujuangou landslide
孙新坡1; 何思明2; 高成凤1; 刘保华1
Corresponding Author孙新坡
2017
Source Publication兰州大学学报(自然科学版)
ISSN0455-2059
Volume53Issue:1Pages:48-53
Abstract采用离散元方法,对5 · 12汶川地震诱发的牛圈沟滑坡动力过程进行数值模拟,通过与实际滑坡堆积形态和运动特点对比反演离散元模型参数,分析了不同基底摩擦系数时滑坡运动距离、堆积形态、内部颗粒运动规律以及运动过程的能量转换关系,有效地再现了地震诱发的滑坡动力过程,为西南地区潜在灾害预测与防治提供理论支持和技术指导.
Other Abstract

采用离散元方法,对5 · 12汶川地震诱发的牛圈沟滑坡动力过程进行数值模拟,通过与实际滑坡堆积形态和运动特点对比反演离散元模型参数,分析了不同基底摩擦系数时滑坡运动距离、堆积形态、内部颗粒运动规律以及运动过程的能量转换关系,有效地再现了地震诱发的滑坡动力过程,为西南地区潜在灾害预测与防治提供理论支持和技术指导.

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The discrete element method was to analyze the Niujuangou landslide induced by the 5 · 12 Wenchuan earthquake. Numerical simulation of the dynamic process was performed, and the actual landslide accumulation form and movement characteristics compared to inverse the discrete element model parameters. Different basal friction coefficients of landslide movement distance, accumulation form, internal particle movement rule and motion process of energy conversion relation were analyzed on the basis of an analysis of the mechanism of energy conversion and dissipation. The results showed that the calculation is consistent with the actual landslide field investigation. This paper effectively recreated the earthquake induced landslide dynamic process, so as to provide theoretical support and technical guidance for the prevention and control of potential hazards in southwest China.

Keyword汶川地震 离散元法 颗粒流 滑坡 动力过程
Subject AreaP642.22
DOI10.13885/j.issn.0455-2059.2017.01.007
Indexed ByCSCD ; 北大中文核心
Language中文
CSCD IDCSCD:5951714
Funding Organization国家自然科学基金项目(41472325、41272297) ; 绵阳市科技局项目(14Q0013) ; 西南科技大学博士基金项目(12zx7124)
Citation statistics
Cited Times:7[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18745
Collection山地灾害与地表过程重点实验室
Affiliation1.西南科技大学土木与建筑学院
2.中国科学院成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
孙新坡,何思明,高成凤,等. 牛圈沟滑坡离散元数值分析[J]. 兰州大学学报(自然科学版),2017,53(1):48-53.
APA 孙新坡,何思明,高成凤,&刘保华.(2017).牛圈沟滑坡离散元数值分析.兰州大学学报(自然科学版),53(1),48-53.
MLA 孙新坡,et al."牛圈沟滑坡离散元数值分析".兰州大学学报(自然科学版) 53.1(2017):48-53.
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