都江堰市龙池镇麻柳沟泥石流特征及形成条件分析
Characteristics and Formation Conditions of Maliu Gully Debris Flow in Longchi, Dujiangyan, Sichuan Province
-
摘要: 通过对都江堰市龙池镇麻柳沟泥石流灾害现场调查，分析了泥石流的特征及形成条件，并对沟道内松散固体物质储量进行了计算，分析了危险区范围。结果表明：麻柳沟流域的地形特征为泥石流形成提供了有利的地形条件，“5.12”汶川地震和“4.20”芦山地震为泥石流的形成提供了丰富的物源条件，多次强降雨为泥石流的启动提供了充足的水源条件。通过计算得出，麻柳沟沟道内的松散固体物质储量约为29.21×104 m3，其中形成区13.19×104 m3，流通区3.27×104 m3，堆积区12.75×104 m3，泥石流最大危险范围为0.247 1 km2。Abstract: The characteristics and formation conditions of Maliu gully debris flow were analyzed by field investigation in Longchi, Dujiangyan, Sichuan Province. The storage capacity of loosening solid matter was calculated and the range of danger zone in this area was designated. The results show that the topographic characteristics of Maliu gully basin provided favorable terrain conditions for the debris flow; besides, the Wenchuan earthquake and the Lushan earthquake have provided rich source conditions, and many heavy rainfall events have offered adequate water conditions for the formation of the debris flow. Moreover, the calculations show that the storage capacity of loosening solid matter is about 29.21×104 m3 in Maliu gully, with about 13.19×104 m3 in formation area, 3.27×104 m3 in flowing area, 12.75×104 m3 in accumulation area. In addition, the maximal hazard zone range of debris flow is 0.2471 km2.
-
Key words:
- Maliu gully /
- debris flow /
- characteristics /
- formation conditions
-
-
许强. 四川省8.13特大泥石流灾害特点、成因与启示 [J]. 工程地质学报, 2010, 18(5): 596-608.
Xu Qiang. The 13 august 2010 catastrophic debris flows in Sichuan province: characteristics, genetic mechanism and suggestions [J]. Journal of Engineering Geology, 2010, 18(5): 596-608.
常鸣, 唐川, 蒋志林, 等. 强震区都江堰市龙池镇泥石流物源的遥感动态演变 [J]. 山地学报, 2014, 32(1): 89-97.
Chang Ming, Tang Chuan, Jiang Zhilin, et al. Dynamic evolution process of sediment supply for debris flow occurrence in Longchi of Dujiangyan, Wenchuan earthquake area [J]. Mountain Research, 2014, 32(1): 89-97.
刘清华, 余斌, 唐川, 等. 四川省都江堰市龙池地区泥石流危险性评价研究 [J]. 地球科学进展, 2012, 27(6): 670-677.
Liu Qinghua, Yu Bin, Tang Chuan, et al. A study of hazard assessment of debris flows in Longchi area of Dujiangyan city, Sichuan province [J]. Advances in Earth Science, 2012, 27(6): 670-677.
李太军, 李颖玲, 陈红梅, 等. 都江堰市2012年度地质灾害应急排查报告 [R]. 德阳: 四川省煤田地质局一四一队, 2012.
Li Taijun, Li Yingling, Chen Hongmei, et al. Emergency investigation report of the geo-hazards in Dujiangyan city in 2012 [R]. The 141 Team, Sichuan Coalfield Geology Bureau, Deyang, 2012.
于国强, 张茂省, 魏新平, 等. 基于ArcGIS+DEM的三眼峪泥石流水动力条件分析 [J]. 西北地质, 2011, 44(3): 53-62.
Yu Guoqiang, Zhang Maosheng, Wei Xinping, et al. Analysis on the hydrodynamic conditions for the massive debris flow in Sanyanyu based on ArcGIS and DEM [J]. Northwestern Geology, 2011, 44(3): 53-62.
张茂省, 黎志恒, 孙萍萍, 等. 舟曲三眼峪“8.8”特大泥石流灾害特征与风险减缓对策 [J]. 西北地质, 2011, 44(3): 10-20.
Zhang Maosheng, Li Zhiheng, Sun Pingping, et al. The Disaster Characteristics and Risk Mitigation Measures of “8.8” Debris Flow at Sanyanyu Gully, Zhouqu [J]. Northwestern Geology, 2011, 44(3): 10-20.
亓星, 余斌, 马煜, 等. 四川省都江堰龙池8·13麻柳沟泥石流灾害特征 [J]. 中国地质灾害与防治学报, 2011, 22(1): 17-21.
Qi Xing, Yu Bin, Ma Yu, et al. Characteristics of Longchi 8.13 Maliu gully debris flow disasters of in Dujiangyan, Sichuan Province [J]. The Chinese Journal of Geological Hazard and Control, 2011, 22(1): 17-21.
余斌, 马煜, 张健楠, 等. 汶川地震后四川省都江堰市龙池镇群发泥石流灾害 [J]. 山地学报, 2011, 29(6): 738-746.
Yu Bin, Ma Yu, Zhang Jiannan, et al. The group debris flow hazards after the Wenchuan earthquake in Longchi, Dujiangyan, Sichuan Province [J]. Journal of Mountain Science, 2011, 29(6): 738-746.
DZ/T 0220-2006. 泥石流灾害防治工程勘查规范 [S]. 北京: 中国标准出版社出版, 2006.
DZ/T 0220-2006. Specification of geological investigation for debris flow stabilization [S]. China Standards Press, Beijing, 2006.
刘希林, 唐川, 朱静, 等. 泥石流危险范围的流域背景预测法 [J]. 自然灾害学报, 1992, 1(3): 56-67.
Liu Xilin, Tang Chuan, Zhu Jing, et al. The drainage background forecast on the risk range of debris flow [J]. Journal of Natural Disasters, 1992, 1(3): 56-67.
-
计量
- 文章访问数: 2612
- PDF下载数: 3111
- 施引文献: 0
下载: