| 柱状危岩体崩塌产生涌浪的物理试验与数值模拟分析 |
| |
| 引用本文： | 赵海林,黄波林,张全,郑嘉豪,冯万里,陈小婷.柱状危岩体崩塌产生涌浪的物理试验与数值模拟分析[J].地质力学学报,2020,26(4):500-509. |
| |
| 作者姓名： | 赵海林 黄波林 张全 郑嘉豪 冯万里 陈小婷 |
| |
| 作者单位： | 1.防灾减灾湖北省重点实验室(三峡大学), 湖北 宜昌 443000 |
| |
| 基金项目： | 国家重点研发计划项目（2018YFC1504803）；三峡后续工作地质灾害防治项目（001212018CC60008）；中国地质调查局地质调查项目（DD20190637）；三峡后续地质灾害防治规划专项资金（001212019CC60001） |
| |
| 摘 要： | 柱状危岩体是三峡库区常见的一种典型地质灾害隐患，其崩塌产生涌浪给库区航运、旅游、生产生活以及人员财产造成巨大威胁和损害。文章基于野外柱状危岩体的成生及运动边界条件，开展了颗粒柱体崩塌产生涌浪的物理试验和数值模拟。结果表明:该数值模型能较好地模拟崩塌涌浪的形成过程、矢量信息以及与水体的相互作用；速度曲线定量地展示了能量的传递；物理试验和数值模拟涌浪高度偏差约3~4 cm；数值模拟堆积区堆积角比物理试验大5%；比前缘运动距离小7%。为柱状危岩体崩塌产生涌浪灾害的预测和预警提供了重要依据。
|
| 关 键 词： | 柱状危岩体 物理试验 数值模拟 颗粒柱体崩塌 涌浪 |
| 收稿时间： | 2020/6/15 0:00:00 |
| 修稿时间： | 2020/7/1 0:00:00 |
Physical experiment and numerical model analysis of surge caused by collapse of columnar dangerous rock mass |
| |
| ZHAO Hailin,HUANG Bolin,ZHANG Quan,ZHENG Jiahao,FENG Wanli,CHEN Xiaoting.Physical experiment and numerical model analysis of surge caused by collapse of columnar dangerous rock mass[J].Journal of Geomechanics,2020,26(4):500-509. |
| |
| Authors: | ZHAO Hailin HUANG Bolin ZHANG Quan ZHENG Jiahao FENG Wanli CHEN Xiaoting |
| |
| Institution: | 1.Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China2.Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China |
| |
| Abstract: | Columnar dangerous rock mass is a common hidden geological hazard in the Three Gorges reservoir area, and the surge induced by collapse causes great threat and damage to shipping, tourism, production and life, as well as personnel and property in the reservoir area. In this paper, based on the boundary conditions of the formation and movement of the columnar dangerous rock mass in the field, the physical experiment and numerical simulation of surge caused by the collapse of granular columns are carried out. The results show that the numerical model can well simulate the formation process, vector information and interaction with water, and the velocity curve shows the energy transfer quantitatively. The deviation of surge height between the physical test and the numerical simulation is about 3~4 cm; the stacking angle of the numerical simulation stacking area is 5% larger than that of the physical experiment; the moving distance of the leading edge is 7% smaller. It provides an important basis for prediction and early warning of surge disaster caused by the collapse of columnar dangerous rock mass. |
| |
| Keywords: | columnar dangerous rock mass physical experiment numerical simulation granular column collapse surge |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地质力学学报》浏览原始摘要信息 |
| 点击此处可从《地质力学学报》下载免费的PDF全文 |
|
