| Rockfall数值模拟在零星高位崩塌地质灾害勘查中的应用 |
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| 引用本文： | 孙全福,胡才源,李小玲,张忠,杨世林.Rockfall数值模拟在零星高位崩塌地质灾害勘查中的应用[J].贵州地质,2020,37(2):214-220. |
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| 作者姓名： | 孙全福 胡才源 李小玲 张忠 杨世林 |
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| 作者单位： | 贵州省地质环监测院，贵州贵阳550001 |
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| 摘 要： | 贵州省大方县小屯乡法启村一组崩塌地质灾害为一高位崩塌地质灾害隐患,崩塌方式以零星崩落为主,威胁下部83户510名居民及法启火车站安全。本文以贵州省大方县小屯乡法启村一组崩塌地质灾害隐患为例,根据勘查及调查测绘,模拟剖面的选取,坡面的参数确定,运用Rockfall软件数值模拟,模拟出崩塌落石运动过程中的特征参数,掌握了崩塌落石的运动特征,为该地质灾害防治提供了重要的参数依据。研究结果表明,Rockfall数值模拟在零星高位崩塌地质灾害勘查中可分析出崩塌落石的主要堆积停留区、最远崩落距离和各点位的落石动能、最大弹跳高度等详细数据,避免了公式计算的单一性,体现了模拟的随机性,与崩塌地质灾害的实际运动特征更接近,可更有效的指导崩地质灾害的防治,具有重要实践意义。
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| 关 键 词： | 高位崩塌 Rockfall 数值模拟 地质灾害勘查 |
| 收稿时间： | 2019/11/10 0:00:00 |
Application of Rockfall Numerical Simulation in Geological Disaster Investigation of Sporadic High-level Collapse |
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| SUN Quan-fu,HU Cai-yuan,LI Xiao-ling,ZHANG zhong,YANG Shi-lin.Application of Rockfall Numerical Simulation in Geological Disaster Investigation of Sporadic High-level Collapse[J].Guizhou Geology,2020,37(2):214-220. |
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| Authors: | SUN Quan-fu HU Cai-yuan LI Xiao-ling ZHANG zhong YANG Shi-lin |
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| Abstract: | A group of collapse geological disaster in Faqi village, Xiaotun Township, Dafang County, Guizhou Province, is a hidden danger of high-level collapse geological disaster. Taking a group of collapse geological disasters in Faqi village, Xiaotun Township, Dafang County, Guizhou Province as an example, according to the investigation and mapping, the selection of simulation profile, the determination of slope parameters, the numerical simulation of Rockfall software, the characteristic parameters in the process of rockfall movement are simulated, and the movement characteristics of Rockfall are mastered, which provides an important parameter basis for the geological disaster prevention and control. The research results show that Rockfall numerical simulation can analyze the detailed data of the main accumulation area, the farthest distance of Rockfall, the kinetic energy of Rockfall and the maximum jumping height of Rockfall at each point, etc. , it avoids the singleness of Formula Calculation, reflects the randomness of simulation, and is closer to the actual movement characteristics of collapse geological disaster, which can guide the prevention and control of collapse geological disaster more effectively. |
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