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西藏波密茶隆隆巴曲高位地质灾害类型及发育特征

张田田 殷跃平 李滨 贺凯 王猛 赵超英 刘晓杰

张田田, 殷跃平, 李滨, 贺凯, 王猛, 赵超英, 刘晓杰. 2021: 西藏波密茶隆隆巴曲高位地质灾害类型及发育特征. 中国地质灾害与防治学报, 32(3): 9-16. doi: 10.16031/j.cnki.issn.1003-8035.2021.03-02
引用本文: 张田田, 殷跃平, 李滨, 贺凯, 王猛, 赵超英, 刘晓杰. 2021: 西藏波密茶隆隆巴曲高位地质灾害类型及发育特征. 中国地质灾害与防治学报, 32(3): 9-16. doi: 10.16031/j.cnki.issn.1003-8035.2021.03-02
Tiantian ZHANG, Yueping YIN, Bin LI, Kai HE, Meng WANG, Chaoying ZHAO, Xiaojie LIU. 2021: Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet. The Chinese Journal of Geological Hazard and Control, 32(3): 9-16. doi: 10.16031/j.cnki.issn.1003-8035.2021.03-02
Citation: Tiantian ZHANG, Yueping YIN, Bin LI, Kai HE, Meng WANG, Chaoying ZHAO, Xiaojie LIU. 2021: Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet. The Chinese Journal of Geological Hazard and Control, 32(3): 9-16. doi: 10.16031/j.cnki.issn.1003-8035.2021.03-02

西藏波密茶隆隆巴曲高位地质灾害类型及发育特征

doi: 10.16031/j.cnki.issn.1003-8035.2021.03-02
基金项目: 中国地质调查局地质调查项目(DD20211540)
详细信息
    作者简介:

    张田田(1995-),男,博士研究生,主要从事地质灾害防治研究工作。E-mail:1297385717@qq.com

    通讯作者:

    殷跃平(1960-),男,研究员,博士生导师,主要从事地质灾害防治技术研究工作。E-mail:yyueping@mail.cgs.gov.cn

  • 中图分类号: P694

Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet

  • 摘要: 茶隆隆巴曲位于帕隆藏布右岸,陡变地形孕育了大量高位地质灾害,威胁下游线性工程。采用多源、多期次高分辨率遥感数据,建立高位地质灾害遥感解译标志,厘定了研究区高位地质灾害类型,并详细阐述了其发育特征。结果表明,研究区主要地质灾害类型包括高位冰崩、高位崩塌、高位滑坡。其中高位冰崩发育3处,均位于沟谷上游南坡海拔5000 m斜坡,面积在15×104 m2以上。高位崩塌体发育19处,多分布于沟谷中游及上游主沟两侧高陡岸坡,北坡多于南坡。高位滑坡发育2处,位于沟谷上游,滑体以冰碛物为主。上述高位地质灾害在强震或强降雨作用下,极易发生失稳、堵沟,且堵沟后极易诱发洪水、泥石流等次生灾害链,对下游帕隆藏布造成堵江风险。
  • 图  1  研究区三维遥感地形(左)及地层岩性分布图(右)

    Figure  1.  Three-dimensional remote sensing topography (left) and stratum lithology distribution map (right) of the study area

    图  2  茶隆隆巴曲I-I′工程地质剖面示意图

    Figure  2.  Chalong Long Baqu I-I′ schematic diagram of engineering geological section

    图  3  研究区高位地质灾害分布图

    Figure  3.  Distribution map of high-level geological disasters in the study area

    图  4  BC01冰崩堆积体多期光学遥感解译

    Figure  4.  Multi-phase optical remote sensing interpretation of BC01 ice avalanche deposits

    图  5  BC02冰崩体多期遥感影像

    Figure  5.  Multi-phase remote sensing image of BC02 ice avalanche

    图  6  BC03冰崩体多期遥感影像

    Figure  6.  Multi-phase remote sensing image of BC03 ice avalanche

    图  7  冰崩区InSAR形变速率图

    Figure  7.  InSAR deformation rate diagram in the ice avalanche zone

    图  8  B002、B003、B004高位崩塌危岩体影像图

    Figure  8.  Images of dangerous rock masses of B002, B003, and B004 high-level collapse

    图  9  B009、B011、B016高位崩塌危岩体影像图

    Figure  9.  Image of dangerous rock masses of B009, B011, and B016 high-level collapse

    表  1  研究区光学遥感数据一览表

    Table  1.   Summary of optical remote sensing data in the study area

    序号日期数据来源分辨率备注
    12013-10-11资源三号卫星全色2.1 m,多光谱5.8 m
    22015-07-25高分一号全色2 m,多光谱8 m
    32016-12-22资源三号卫星全色2.1 m,多光谱5.8 m
    42019-11-07高分一号全色2 m,多光谱8 m
    5Google地球2.0 m融合数据
    62020-08-18无人机航空
    正射影像
    0.5 m沟道中下部
    72020-08-18无人机航空
    倾斜影像
    0.5 m沟道中下部
    下载: 导出CSV

    表  2  高位冰崩发育特征

    Table  2.   Development characteristics of high ice avalanche

    编号位置前缘高程/m后缘高程/m前后缘高差/m落差/m面积/m2
    BC01南坡3692520815162983719633
    BC02南坡449049734832748204033
    BC03南坡447148784072653185347
    下载: 导出CSV

    表  3  研究区典型高位崩塌发育特征

    Table  3.   Development characteristics of typical high-level avalanches in the study area

    编号位置崩源区面积/m2崩塌堆积区面积/m2总体积/m3落差/m
    B002南坡88912630291.50×1061000
    B003南坡558945649810.8×1041400
    B004南坡122602564982.15×1061500
    B009北坡284287834144.04×1061000
    B011北坡1589463971915.14×106880
    B016北坡53017173520.35×1061100
    下载: 导出CSV
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  • 收稿日期:  2021-05-05
  • 修回日期:  2021-05-10
  • 刊出日期:  2021-06-25

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