蒋家沟坡地土力类泥石流启动的动力学模型
文献类型：专著章节文集论文
| 语种 | 中文 |
| 作者 | 郭仲三1; 田连权2; 郭四稳1; 肖帆1 |
| 出处 | 泥石流观测与研究 |
| 发表日期 | 1996-06 |
| 页码 | 57-63 |
| 出版者 | 科学出版社 |
| 出版地 | 北京 |
| 关键词 | 土力类泥石流 启动 动力学模型 应力分析 蒋家沟 |
| 交替题名 | A DYNAMIC MODEL OF OCCURRENCE OF THE SOIL-MECHANICAL DEBRIS FLOW ON THE SLOPE OF JIANGJIA RAVINE |
| 英文摘要 | In this paper we study the occurrence of the soil-mechanical debris flow on the slope of Jiangjia Ravine , Yunnan Province , analyse with emphasis the influence of the soil stability , the change of water content and slope configuration on debris flow formation, develop a dynamic model different from the phenomenological ones which are prevailing in the foregoing studies. Finite element method is used to analyse the stress distribution in source soil; 24-hour and 10-minute critical rainfall are obtained under various values of Young's modulus. Poisson's ratio, plastic limit, porosity. initial moisture , fine grain content and so on; sliding surfaces usually unparallel to the slope are given by computer graphics. According to our model, 24-hour critical rainfall of Jiangjia Ravine is 17 mm, depth of moving soillayers is 6-17cm, critical slope degree is 12°. These results are agree with the on-site observations. Besides, we find that the change in Poisson's ratio of source soil greatly affects the depth of moving soil layer when debris flow occurs and therefore suggest the research work concerned. |
| ISBN号 | 7-03-005334-6 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/27127]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 作者单位 | 1.中国科学院成都计算机应用研究所; 2.中国科学院东川泥石流观测研究站 |
| 推荐引用方式 GB/T 7714 | 郭仲三,田连权,郭四稳,等. 蒋家沟坡地土力类泥石流启动的动力学模型. 泥石流观测与研究. 北京:科学出版社,1996:57-63. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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