吴钟腾, 冯文凯, 朱继良, 陈志超, 罗旋. 2015: 云南省彝良县麻窝滑坡危害范围三维数值模拟分析. 工程地质学报, 23(s1): 392-397. DOI: 10.13544/j.cnki.jeg.2015.s1.061
    引用本文: 吴钟腾, 冯文凯, 朱继良, 陈志超, 罗旋. 2015: 云南省彝良县麻窝滑坡危害范围三维数值模拟分析. 工程地质学报, 23(s1): 392-397. DOI: 10.13544/j.cnki.jeg.2015.s1.061
    WU Zhongteng, FENG Wenkai, ZHU Jiliang, CHEN Zhichao, LUO Xuan. 2015: SIMULATION ANALYSIS OF LANDSLIDE HAZARDS AREA USING THREE-DIMENSIONAL IN MAWO MOUNTAIN IN YILIANG COUNTY, YUNNAN PROVINCE. JOURNAL OF ENGINEERING GEOLOGY, 23(s1): 392-397. DOI: 10.13544/j.cnki.jeg.2015.s1.061
    Citation: WU Zhongteng, FENG Wenkai, ZHU Jiliang, CHEN Zhichao, LUO Xuan. 2015: SIMULATION ANALYSIS OF LANDSLIDE HAZARDS AREA USING THREE-DIMENSIONAL IN MAWO MOUNTAIN IN YILIANG COUNTY, YUNNAN PROVINCE. JOURNAL OF ENGINEERING GEOLOGY, 23(s1): 392-397. DOI: 10.13544/j.cnki.jeg.2015.s1.061

    云南省彝良县麻窝滑坡危害范围三维数值模拟分析

    SIMULATION ANALYSIS OF LANDSLIDE HAZARDS AREA USING THREE-DIMENSIONAL IN MAWO MOUNTAIN IN YILIANG COUNTY, YUNNAN PROVINCE

    • 摘要: 滑坡失稳后的危害范围是危险区划分的重要依据, 也是开展滑坡预测和防治的基础。本文结合具体滑坡实例, 建立大型离散元3DEC数值模型对麻窝滑坡危害范围进行模拟分析。结果表明:麻窝滑坡变形破坏后的危害范围在滑体左侧(面向坡外)105m, 滑体右侧65m, 距滑坡纵向水平距离345m。从速度监测数据显示, 滑体通过剪出口后, 其横向运动的速度量值不大, 滑体总体的运动趋势是向下与向前。相比滑坡前缘和后缘, 中部速度更大, 更有可能远距离滑动。该研究成果可对当地防灾减灾决策提供理论依据, 因此, 建议位于滑坡下游缓坡段248~315m麻窝凼村庄搬迁或修建拦石墙等支挡措施。

       

      Abstract: The landslide hazards area is an important basis for division of the danger zone, also is basic to carry out landslide disaster prediction and prevention work. The large discrete element numerical 3DEC model was carried out, which researches Mawo landslide hazards area. The results shows: The hazards area after Mawo landslide damaging and deformation is 105m at left of landslide(facing slope), 65m at the right of landslide, and is 345m away from landslide vertical horizontal distance. The speed monitoring data show, after the landslide sliding out, the speed of the lateral movement is small, general trend movement of landslide is downward and forward. And it shows that central of landslide have the greater speed than other parts, which make it more likely to be long-range slide. The research results would provide a theoretical basis for local disaster prevention and mitigation decisions, therefore, we should recommend that Mawodang village would relocate or construct stopped stone walls retaining measures, which locates 248~345m from gentle segment landslide downstream.

       

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