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三峡库区龙门寨危岩体崩塌产生涌浪研究

郑嘉豪 黄波林 张全 赵海林 冯万里 王健 陈小婷

郑嘉豪, 黄波林, 张全, 等, 2020. 三峡库区龙门寨危岩体崩塌产生涌浪研究. 地质力学学报, 26 (4): 533-543. DOI: 10.12090/j.issn.1006-6616.2020.26.04.046
引用本文: 郑嘉豪, 黄波林, 张全, 等, 2020. 三峡库区龙门寨危岩体崩塌产生涌浪研究. 地质力学学报, 26 (4): 533-543. DOI: 10.12090/j.issn.1006-6616.2020.26.04.046
ZHENG Jiahao, HUANG Bolin, ZHANG Quan, et al., 2020. Study on the surge induced by the collapse of dangerous rock mass in Longmen Village in Three Gorges reservoir area. Journal of Geomechanics, 26 (4): 533-543. DOI: 10.12090/j.issn.1006-6616.2020.26.04.046
Citation: ZHENG Jiahao, HUANG Bolin, ZHANG Quan, et al., 2020. Study on the surge induced by the collapse of dangerous rock mass in Longmen Village in Three Gorges reservoir area. Journal of Geomechanics, 26 (4): 533-543. DOI: 10.12090/j.issn.1006-6616.2020.26.04.046

三峡库区龙门寨危岩体崩塌产生涌浪研究

doi: 10.12090/j.issn.1006-6616.2020.26.04.046
基金项目: 

国家重点研发计划项目 2018YFC1504806

重庆市科研项目 2018102849

详细信息
    作者简介:

    郑嘉豪(1997-), 男, 在读硕士, 主要从事地质灾害及涌浪灾害研究。E-mail:953897830@qq.com

    通讯作者:

    黄波林(1979-), 男, 研究员, 博士生导师, 主要从事水库地质灾害及涌浪灾害方面的教学与研究工作。E-mail:bolinhuang@aliyun.com

  • 中图分类号: P642.21

Study on the surge induced by the collapse of dangerous rock mass in Longmen Village in Three Gorges reservoir area

  • 摘要: 长江两岸高耸的危岩体对航道、沿岸居民带来巨大安全隐患。大宁河属于长江一级支流,龙门寨危岩体位于大宁河上,距离巫山县城仅1 km。利用FLOW-3D软件,模拟了145 m、175 m两种水位工况下龙门寨危岩体崩塌产生涌浪过程和涌浪传播过程。模拟结果表明,涌浪在145 m水位工况下最大浪高约为17.9 m,175 m水位工况下最大浪高约为11.6 m;在巫山县的五个码头处,两种水位工况最大涌浪爬高分别约为10.9 m、3.8 m;根据涌浪高度,对大宁河进行危险分区,145 m水位工况下极高危险区长度约4.4 km,很高危险区长度约1.9 km;175 m水位工况下极高危险区长度约3.0 km,很高危险区长度约1.0 km。研究结果有助于防控龙门寨危岩体潜在涌浪灾害危害,保障大宁河航道和巫山县码头安全,同时也为三峡库区滑坡涌浪灾害提供了预警依据。

     

  • 图  1  巫山县城周边典型滑坡-涌浪灾害点分布图

    Figure  1.  Distribution map of typical landslide-induced surges near Wushan County

    图  2  龙门寨危岩体剖面图

    Figure  2.  Section map of the dangerous rock mass in Longmen Village

    图  3  龙门寨危岩体

    Figure  3.  Photo of the dangerous rock mass in Longmen Village

    图  4  龙门寨危岩体模型以及监测点位置

    Figure  4.  Model of the dangerous rock mass in Longmen Village and the positions of the monitoring points

    图  5  龙门寨危岩体模型X-Z面、X-Y面涌浪传播过程

    Figure  5.  Propagation processes of the X-Z plane and X-Y plane of the surge by the dangerous rock mass model

    图  6  河道涌浪传播速度分布图

    Figure  6.  Distribution diagram of the propagation velocity in the channel

    图  7  河道泓深线最大涌浪图

    Figure  7.  Maximum surge chart of the thalweg in the channel

    图  8  各监测点涌浪最大高度(单位/m)

    Figure  8.  Maximum surge height at each monitoring point(unit/m)

    图  9  两种水位工况下危险分区图

    Figure  9.  Risk zoning map under two water level conditions

    图  10  145 m水位各码头涌浪高度过程线

    Figure  10.  Hydrograph of the surge height of each wharf at 145 m water level

    图  11  175 m水位各码头涌浪高度过程线

    Figure  11.  Hydrograph of the surge height of each wharf at 175 m water level

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  • 收稿日期:  2020-05-10
  • 修回日期:  2020-06-24
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