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四川省喜德县地质灾害“点面双控”体系探索与实践

徐伟, 铁永波, 王家柱, 郑玄, 白永健, 徐如阁, 梁东波, 欧文. 四川省喜德县地质灾害“点面双控”体系探索与实践[J]. 中国地质灾害与防治学报, 2023, 34(5): 1-9. doi: 10.16031/j.cnki.issn.1003-8035.202302031
引用本文: 徐伟, 铁永波, 王家柱, 郑玄, 白永健, 徐如阁, 梁东波, 欧文. 四川省喜德县地质灾害“点面双控”体系探索与实践[J]. 中国地质灾害与防治学报, 2023, 34(5): 1-9. doi: 10.16031/j.cnki.issn.1003-8035.202302031
XU Wei, TIE Yongbo, WANG Jiazhu, ZHENG Xuan, BAI Yongjian, XU Ruge, LIANG Dongbo, OU Wen. Exploration and practice of the “dual control of point and zone” system for geological hazards in Xide County, Sichuan Province[J]. The Chinese Journal of Geological Hazard and Control, 2023, 34(5): 1-9. doi: 10.16031/j.cnki.issn.1003-8035.202302031
Citation: XU Wei, TIE Yongbo, WANG Jiazhu, ZHENG Xuan, BAI Yongjian, XU Ruge, LIANG Dongbo, OU Wen. Exploration and practice of the “dual control of point and zone” system for geological hazards in Xide County, Sichuan Province[J]. The Chinese Journal of Geological Hazard and Control, 2023, 34(5): 1-9. doi: 10.16031/j.cnki.issn.1003-8035.202302031

四川省喜德县地质灾害“点面双控”体系探索与实践

  • 基金项目: 中国地质调查局地质调查项目(DD20221746)
详细信息
    作者简介: 徐 伟(1986-),男,山东淄博人,地质工程专业,硕士,高级工程师,主要从事地质灾害调查评价和岩土体稳定性方向研究。E-mail:052054@163.com
  • 中图分类号: P642.2

Exploration and practice of the “dual control of point and zone” system for geological hazards in Xide County, Sichuan Province

  • 地质灾害隐患点和风险区双控是我国“十四五”期间地质灾害防治的重要任务之一,各试点省份和地区均在探索如何有效开展“点面双控”,并逐渐形成点面双控的管理制度、责任体系和技术方法。在归纳四川省喜德县地质环境条件和前期防灾减灾工作成效的基础上,总结了在喜德县开展地质灾害隐患点和风险区双控工作的做法和经验,结合我国现有地质灾害四大体系,提出了包含五个板块的点面双控体系:风险调查评价与动态调整板块,提高“点面双控”针对性、时效性、可操作性;监测预警与响应处置板块,提高“点面双控”监测覆盖面、预警准确度和响应效率;风险常态管理与防御板块,提升“点面双控”常态防御能力与管理水平,推动防御和管理向数字化和智能化转变;科普宣传与培训演练板块,提升“点面双控”全民认知水平和避灾能力;制度建设板块,完善责任体系,制定双控制度。通过上述工作,实现了喜德县风险隐患动态监测与常态化防御,提升了喜德县地质灾害防控能力,可为其他地区提供科学参考。

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  • 图 1  喜德县地质环境图

    Figure 1. 

    图 2  喜德县地质灾害类型统计图

    Figure 2. 

    图 3  点面双控体系的组成

    Figure 3. 

    图 4  风险调查评价与动态调整板块

    Figure 4. 

    图 5  洛哈镇沿米市河高风险区雨量监测数据与预警

    Figure 5. 

    图 6  I-P 降雨阈值曲线

    Figure 6. 

    图 7  不同工况下“面控”响应流程

    Figure 7. 

    图 8  点面双控的常态管理与防御板块

    Figure 8. 

    表 1  喜德县降雨型地质灾害预警模型

    Table 1.  Rainfall-type geological hazard early warning model for Xide County

    降雨阈值模型
    (0.1≤D≤120 h)
    当日降雨量/
    mm
    累计降雨量/
    mm
    对应预警等级
    及形式
    I15%>0.87D−0.277 8.64 25 注意级
    I50%>3.05D−0.277 26.5 49 警示级
    I70%>4.18D−0.277 41.52 73 警戒级
    I90%>8.225 D−0.279 81.22 145 警报级
    下载: 导出CSV
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出版历程
收稿日期:  2023-02-28
修回日期:  2023-04-17
录用日期:  2023-08-03
刊出日期:  2023-10-25

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