陕北延安“7.3暴雨”诱发地质灾害主要类型与特征
Main Types and Characteristics of the Geo-Hazards Triggered by Heavy Rain on July 3 in Yan’an, Shaanxi
-
摘要: 2013年7月3日以来，陕西延安地区百年不遇的持续性强降雨，引发了大量的崩塌、滑坡、泥流地质灾害，造成严重的财产损失和人员伤亡。通过野外实地调查，对本次持续性强降雨诱发大范围地质灾害的主要类型和特征进行了较为系统的研究。研究表明，本次持续性强降雨引发的地质灾害共计8 000余处，灾害类型主要有崩塌、滑坡和泥流，分别以小规模黄土崩塌、浅表层黄土滑坡、坡面型黄土泥流为主，以及上述灾种链生转化形成的沟谷型泥流。在持续降雨条件下，多灾种转化而成的复合型灾害是造成人员伤亡和财产损失的主要类型。Abstract: Great amount of geo-hazards have been triggered by the continuous heavy rain since July 3, 2013 in Yan'an. It made a serious threat to the local inhabitants' properties and lives. Based on lots of site-investigations of these regions, this paper made a systematic research on the main types and characteristics of the landslide. To conclude, three main types of geo-hazards were identified, including landslide, collapse and debris flow, especially small-scale loess collapse, shallow loess landslide, debris flow on slope and gully debris flow caused by hazards chains. In the continuous rainfall conditions, the composite geo-hazard is the primary disaster leading to casualty and property loss.
-
Key words:
- Yan’an /
- heavy rain on July 3 /
- geo-hazard /
- main types /
- characteristics
-
-
雷祥义. 黄土高原地质灾害与人类活动 [M]. 北京: 地质出版社, 2001. Lei Xiangyi. Geological hazards and human activity on the loess plateau [M]. Geological Press, Beijing, 2001.
吴玮江, 王念秦. 黄土滑坡的基本类型与活动特征 [J]. 中国地质灾害与防治学, 2002, 13(2): 36-40.
WuWeijiang, Wang Nianqin. Basic types and active features of loess landslide [J]. The Chinese Journal of Geological Hazard and Control, 2002, 13(2): 36-40.
李同录, 龙建辉, 李新生. 黄土滑坡发育类型及其空间预测方法 [J]. 工程地质学报, 2007, 04: 500-505.
Li Tonglu, Long Jianhui, Li Xinsheng. Types of loess landslides and methods for their movement forecast [J]. Journal of Engineering Geology, 2007, 04: 500-505.
张茂省, 校培喜, 魏兴利, 等. 延安宝塔区滑坡崩塌地质灾害 [M]. 北京: 地质出版社, 2009.
Zhang Maosheng, Xiao Peixi, Wei Xingli, et al. Geo-hazards at Baota Distract, Yan’an city [M]. Geological Press, Beijing, 2009.
曾磊, 张茂省, 黄玉华, 等. 优势入渗通道对黄土斜坡稳定性影响研究 [J]. 工程地质学报, 2011, 19(suppl): 39-45.
Zei Lei, Zhang Maosheng, Huang Yuhua, et al. The effect of advantage infiltration channel on the stability of loess slope [J]. Journal of Engineering Geology. 2011, 19(suppl): 39-45.
唐亚明, 薛强. 降雨入渗诱发黄土滑塌的模式及临界值初探 [J]. 地质论评, 2013, 59(1): 97-106.
Tang Yaming, Xue Qiang. Preliminary Study on Loess Landslide Rainfall Triggering Modes and Thresholds [J]. Geological Review, 2013, 59(1): 97-106.
雷祥义, 黄玉华, 王卫. 黄土高原的泥流灾害与人类活动 [J]. 陕西地质, 2000, 18(1): 28-39.
Lei Xiangyi, Huang Yuhua, Wang Wei. Disasters of Mudflow and Human Activities on the Loess Plateau of China [J]. Geology of Shaanxi, 2000, 18(1): 28-39.
马东涛, 崔鹏, 张金山, 等. 黄土高原泥流灾害成因及特征 [J]. 干旱区地理, 2005, 28(4): 436-440.
Ma Dongtao, Cui peng, ZhangJinshan, et al. Formation Causes and Features of Mudflows in the Loess Plateau, China [J]. Arid Land Geography, 2005, 28(4): 436-440.
高华喜, 殷坤龙. 降雨与滑坡灾害相关性分析及预警预报阀值之探讨 [J]. 岩土力学, 2007, 28(5): 1055-1060.
Gao Huaxi, Yin Kunlong. Discuss on the correlations between landslides and rainfall and threshold for landslide early-warning and prediction [J]. Rock and Soil Mechanics, 2007, 28(5): 1055-1060.
李明, 杜继稳, 高维英. 陕北黄土高原区地质灾害与降水关系 [J]. 干旱区研究. 2009, 26(4): 595-606.
Li Ming, Du Jiwen, Gao Weiying. Study on the Relationship between Geological Disasters and Precipitation in the Loess Plateau in North Shaanxi Province [J]. Arid Zone Research. 2009, 26(4): 595-606.
-
计量
- 文章访问数: 2999
- PDF下载数: 3175
- 施引文献: 0
下载: