| V形河谷滑坡最大冲击波面高度估计 |
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| 引用本文： | 孔增增,翟建国,黄筱云,刘灿,程永舟.V形河谷滑坡最大冲击波面高度估计[J].水利水电科技进展,2018,38(3):15-21. |
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| 作者姓名： | 孔增增 翟建国 黄筱云 刘灿 程永舟 |
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| 作者单位： | 长沙理工大学水利工程学院;水沙科学与水灾害防治湖南省重点实验室;中交武汉港湾工程设计研究院有限公司 |
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| 基金项目： | 国家自然科学基金(51309036)；湖南省自然科学基金(2015JJ2006)；湖南省水利科技项目(湘水科技［2015］13-20) |
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| 摘 要： | 提出一种计算V形河谷滑坡冲击波浪最大波面高度的经验公式。运用Flow-3D软件建立V形河谷滑坡冲击波浪传播的数值模型,开展96种工况的数值模拟试验,分析滑坡体的入水速度、入水体积、水下滑行时长以及滑坡角度和对岸爬坡角度对最大波浪高度的影响,并回归分析获得最大波面高度的拟合公式。新公式用于估计龚家坊滑坡产生的最大冲击波面高度,计算结果与物理模型试验值吻合。
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| 关 键 词： | V形河谷 最大冲击波面高度 经验公式 Flow-3D |
| 收稿时间： | 2017/6/20 0:00:00 |
Estimation of maximum water elevation of impact wave by landslide in a V shaped river valley |
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| KONG Zengzeng,ZHAI Jianguo,HUANG Xiaoyun,LIU Can and CHEN Yongzhou.Estimation of maximum water elevation of impact wave by landslide in a V shaped river valley[J].Advances in Science and Technology of Water Resources,2018,38(3):15-21. |
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| Authors: | KONG Zengzeng ZHAI Jianguo HUANG Xiaoyun LIU Can and CHEN Yongzhou |
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| Affiliation: | School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China; Key Laboratory of Water & Sediment Science and Water Hazard Prevention of Hunan Province, Changsha 410004, China,CCCC Wuhan Harbor Engineering Design and Research Co., Ltd., Wuhan 430040,School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China; Key Laboratory of Water & Sediment Science and Water Hazard Prevention of Hunan Province, Changsha 410004, China,School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China; Key Laboratory of Water & Sediment Science and Water Hazard Prevention of Hunan Province, Changsha 410004, China and School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China; Key Laboratory of Water & Sediment Science and Water Hazard Prevention of Hunan Province, Changsha 410004, China |
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| Abstract: | An empirical estimation formula for the maximum water elevation of the impact wave generated by the landslide in a V-shaped river valley is presented. Using the Flow-3D software, a numerical model of the impact wave resulting from the landslide in a V-shaped river valley was established and numerical experiments under 96 conditions were carried out. Effects of the inserting velocity of landslide into water, landslide volume, time of underwater sliding, inserting angle and climbing angle on the maximum water elevation were analyzed respectively. The fitting formula of the maximum water elevation was obtained by regression analysis. The new formula was used to evaluate the maximum water elevation for the Gongjiafang landslide event, and it is shown that the calculated result is very close to the value of the physical experiment. |
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| Keywords: | V-shaped river valley maximum water elevation of impact wave empirical formula Flow-3D |
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