| 基于增量加载法的泥石流拦挡坝抗冲击力数值模拟 |
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| 引用本文： | 刘兴荣,魏新平,陈豫津,王翔宇.基于增量加载法的泥石流拦挡坝抗冲击力数值模拟[J].中国地质灾害与防治学报,2021,32(2):78-83. |
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| 作者姓名： | 刘兴荣 魏新平 陈豫津 王翔宇 |
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| 作者单位： | 1.甘肃省科学院 地质自然灾害防治研究所，甘肃 兰州 730000 |
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| 基金项目： | 甘肃省科技计划项目(自然科学基金:18JR3RA251);甘肃科学院与中科院合作项目(2017HZ-03);甘肃科学院科技产业化项目(CY08)。 |
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| 摘 要： | 为提高泥石流重力式拦挡坝的设计安全和避免资金投入过大而造成浪费，选择合理的泥石流冲击力作为设计依据尤为重要。文章结合舟曲县三眼峪沟灾后重建防治工程相关数据，利用有限元软件ABAQUS进行计算分析，采用增量加载的数值计算方法，分别求得2种工况下重力式拦挡坝的抗冲击力。根据三眼峪沟治理工程运行至今的反馈情况，证明在泥石流治理工程设计中，冲击力选择工况1和2的平均值较合理，同时说明该方法与经验公式结合使用，其结果更加精确可靠，在泥石流工程设计和研究中具有良好的应用前景。
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| 关 键 词： | 重力式拦挡坝 ABAQUS 三眼峪 抗冲击力 |
| 收稿时间： | 2020-03-03 |
Numerical simulation of impact resistance of debris flow dam:A case study of the debris flow dam in Sanyanyu Gully,Zhouqu County,Gansu Province |
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| LIU Xingrong,WEI Xinping,CHEN Yujin,WANG Xiangyu.Numerical simulation of impact resistance of debris flow dam:A case study of the debris flow dam in Sanyanyu Gully,Zhouqu County,Gansu Province[J].The Chinese Journal of Geological Hazard and Control,2021,32(2):78-83. |
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| Authors: | LIU Xingrong WEI Xinping CHEN Yujin WANG Xiangyu |
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| Institution: | 1.Geological Hazards Prevention Institute, Gansu Academy of Sciences, Lanzhou, Gansu 730000, China2.Gansu Institute of Geo-Environmental Monitoring, Lanzhou, Gansu 730050, China3.Guiyang Oil and Gas Transportation Branch, Guiyang, Guizhou 550000, China |
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| Abstract: | In order to improve the design safety of gravity dam and avoid excessive capital investment and waste,it is very important to choose a reasonable debris flow impact as the design basis.This paper takes Sanyanyu ditch debris flow disaster prevention and control project as the background,based on ABAQUS,to calculate limit resistance analysis on gravity dam of Sanyanyu ditch debris flow.The numerical method of increment loading is used to evaluate the lateral impact resistance of gravity dam under two working conditions.According to the feedback from the Sanyanyu prevention and control project,it is proved that the average value of working conditions 1 and 2 of impact force selection is reasonable in the design of debris flow control project,and it is explained that the method is used in combination with the empirical formula,and the results are more accurate and reliable.It has good application prospect in debris flow engineering design and research. |
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| Keywords: | gravity dam ABAQUS Sanyanyu impact resistance |
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