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地质力学学报:2020,26(4):500-509
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柱状危岩体崩塌产生涌浪的物理试验与数值模拟分析
(1.防灾减灾湖北省重点实验室(三峡大学), 湖北 宜昌 443000;2.三峡大学湖北长江三峡滑坡国家野外观测站, 湖北 宜昌 443000)
Physical experiment and numerical model analysis of surge caused by collapse of columnar dangerous rock mass
(1.Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China;2.Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China)
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投稿时间:2020-06-15    修订日期:2020-07-01
中文摘要: 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。
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.
文章编号:     中图分类号:P642.21    文献标志码:
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)
Author NameAffiliationE-mail
ZHAO Hailin Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China
Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China 
 
HUANG Bolin Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China
Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China 
bolinhuang@aliyun.com 
ZHANG Quan Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China
Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China 
 
ZHENG Jiahao Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China
Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China 
 
FENG Wanli Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China
Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China 
 
CHEN Xiaoting Hubei Key Laboratory of Disaster Prevention and Reduction, China Three Gorges University, Yichang 443000, Hubei, China
Hubei Yangtze River Three Gorges Landslide National Field Observation Station, China Three Gorges University, Yichang 443000, Hubei, China 
 
引用文本:
赵海林,黄波林,张全,等,2020.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,26(4):500-509.DOI:10.12090/j.issn.1006-6616.2020.26.04.043
ZHAO Hailin,HUANG Bolin,ZHANG Quan,et al,2020.Physical experiment and numerical model analysis of surge caused by collapse of columnar dangerous rock mass[J].Journal of Geomechanics,26(4):500-509.DOI:10.12090/j.issn.1006-6616.2020.26.04.043

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