局部高强度降雨的地质灾害特征分析
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摘要
传统地质灾害特征分析方法,以地面综合调查为主,忽视局部高强度降雨条件这一主观因素,使得地质灾害特征分析结果存在较高的片面性。该文提出基于局部高强度降雨的地质灾害特征分析方法,根据降雨强度、灾害持续时间和平均降雨量等指标设立临界组合判别运算雨量阈值,按照雨量阈值判断地质灾害类型,并结合预警判据图分析局部高强降雨的地质灾害分布特征。实验结果表明,所提方法可全面分析出实验地区地质灾害具有滞后性、群发性和同时性特征。
The traditional analysis method of geological hazard characteristics is based on the comprehensive investigation on the ground,ignoring the subjective factor of local high-intensity rainfall conditions,which makes the analysis results of geological hazard characteristics have higher one-sidedness. In this paper,a method of geological hazard analysis based on local high-intensity rainfall is proposed. According to rainfall intensity,disaster duration and average rainfall,the threshold of critical combination discriminant operation is set up,and the types of geological hazards are judged according to the threshold of rainfall. The geological hazards of local high-intensity rainfall are analyzed by combining with the early warning criterion map. Cloth features. The experimental results show that the proposed method can comprehensively analyze the geological hazards in the experimental area with the characteristics of hysteresis,mass occurrence and synchronization.
The traditional analysis method of geological hazard characteristics is based on the comprehensive investigation on the ground,ignoring the subjective factor of local high-intensity rainfall conditions,which makes the analysis results of geological hazard characteristics have higher one-sidedness. In this paper,a method of geological hazard analysis based on local high-intensity rainfall is proposed. According to rainfall intensity,disaster duration and average rainfall,the threshold of critical combination discriminant operation is set up,and the types of geological hazards are judged according to the threshold of rainfall. The geological hazards of local high-intensity rainfall are analyzed by combining with the early warning criterion map. Cloth features. The experimental results show that the proposed method can comprehensively analyze the geological hazards in the experimental area with the characteristics of hysteresis,mass occurrence and synchronization.
引文
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[5]谢吉尊,冯文凯,杨少帅,等.则木河断裂带活动特征和地质灾害对地貌演化的影响——以鹅掌河流域为例[J].工程地质学报,2017,25(3):772-783.
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[12]孟庆丰,王学良.北京怀柔区降雨引发地质灾害危险性预测[J].水文地质工程地质,2016,43(2):167-170.
[13]强菲,赵法锁,党亚倩,等.陕南秦巴山区地质灾害与影响因素的相关性分析[J].南水北调与水利科技,2015,13(3):557-562.
[14]范嘉炜,黄锦林,唐造造.高州市不同历时降雨组合的风险概率研究[J].灾害学,2018,33(1):213-217.
[15]孔锋,吕丽莉,方建,等.基于日值和小时降水数据诊断中国暴雨时空变化差异的研究(1991-2010)[J].灾害学,2017,32(1):72-79.
[2]仇开莉,褚永彬,张志明,等.天府新区(成都部分)地质灾害空间分布特征[J].桂林理工大学学报,2014,34(2):245-253.
[3]赵鹏,杨沛霖,蒋莉,等.渝东北地区强降雨诱发地质灾害险情分析[J].长江科学院院报,2017,34(10):50-56.
[4]张杰,王宇,张红兵,等.云南彝良9·07地震次生地质灾害特征分析[J].工程地质学报,2014,22(2):280-291.
[5]谢吉尊,冯文凯,杨少帅,等.则木河断裂带活动特征和地质灾害对地貌演化的影响——以鹅掌河流域为例[J].工程地质学报,2017,25(3):772-783.
[6]吴丰,吕振雷,陈珂锐.基于时间尺度分析的云网格空间资源调度算法[J].计算机仿真,2015,32(8):131-135.
[7]王瑛,林齐根,史培军.中国地质灾害伤亡事件的空间格局及影响因素[J].地理学报,2017,72(5):906-917.
[8]潘皇宋,李天斌,仵拨云,等.降雨条件下折线型滑面的大型滑坡稳定性离心模型试验[J].岩土工程学报,2016,38(4):696-704.
[9]汤明高,许强,李九乾,等.降雨诱发震后松散堆积滑坡的启动试验研究[J].水文地质工程地质,2016,43(4):128-134.
[10]齐大鹏,汪超,韩小令,等.基于加密降水资料的贵州地质灾害概率预报模型[J].气象科技,2016,44(5):788-792.
[11]周雨,刘志萍,张国平.鹰厦铁路降水诱发地质灾害概率预报模型及应用[J].应用气象学报,2015,26(6):743-749.
[12]孟庆丰,王学良.北京怀柔区降雨引发地质灾害危险性预测[J].水文地质工程地质,2016,43(2):167-170.
[13]强菲,赵法锁,党亚倩,等.陕南秦巴山区地质灾害与影响因素的相关性分析[J].南水北调与水利科技,2015,13(3):557-562.
[14]范嘉炜,黄锦林,唐造造.高州市不同历时降雨组合的风险概率研究[J].灾害学,2018,33(1):213-217.
[15]孔锋,吕丽莉,方建,等.基于日值和小时降水数据诊断中国暴雨时空变化差异的研究(1991-2010)[J].灾害学,2017,32(1):72-79.