Risk Assessment and Regionalization of Mountain Torrent Disaster in Sichuan Province

doi:10.11988/ckyyb.20140561

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Journal of Changjiang River Scientific Research Institute ›› 2015, Vol. 32 ›› Issue (12) : 87-92. DOI: 10.11988/ckyyb.20140561

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Risk Assessment and Regionalization of Mountain Torrent Disaster in Sichuan Province

DING Wen-feng, DU Jun, CHEN Xiao-ping,REN Hong-yu, ZHANG Ping-cang

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Abstract

Based on GIS technology and the national planning data about prevention of mountain torrent disaster , the risk of mountain torrent disaster, vulnerability and risk degree of Sichuan province were quantified and analyzed in this paper by using the concept of natural disaster risk .According to the general principles of the regionalization theory and the regionalization classification of national mountain torrent disasters, the risk regionalization of Sichuan province was put forward. Results show that the risk levels of mountain torrent disaster in Sichuan province can be divided into 5 kinds: low risk, low-middle risk, middle risk, middle-high risk, and high risk. The percentage of area of the five risk levels accounting for total area of the province is 59.9%, 12.8%, 14.9%, 5.9% and 6.5%, respectively. In the Sichuan basin and the surrounding regions, risk level of mountain torrent disaster is high, for area with the risk level middle or above takes up nearly 80% of total area of these regions .Furthermore, mountain torrent disaster in mountain regions of Qinling and Dabashan is relatively serious, for the risk level is middle or above in nearly 18% of total area of the mountain regions. Finally, risk levels of mountain torrent disaster in several other regions is not high, most of them are low risk and low-middle risk.

Key words

mountain torrent disaster / risk assessment / risk regionalization / GIS technology / vulnerability index

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DING Wen-feng, DU Jun, CHEN Xiao-ping,REN Hong-yu, ZHANG Ping-cang. Risk Assessment and Regionalization of Mountain Torrent Disaster in Sichuan Province[J]. Journal of Changjiang River Scientific Research Institute. 2015, 32(12): 87-92 https://doi.org/10.11988/ckyyb.20140561

References

[1] 黄润秋,许强.中国典型灾难性滑坡[M].北京:科学出版社,2007.(HUANG Run-qiu,XU Qiang. The Evaluation and Prediction of Landslide Induced by Rainfall and Reservoir[M]. Beijing: Science Press,2007. (in Chinese))
[2] 王世梅,郑宏,童富果,等.水库蓄水后三峡库区重大水库复活型滑坡空间预测评价研究[R].宜昌:三峡大学,2013. (WANG Shi-mei, ZHENG Hong, TONG Fu-guo, et al. Spatial Prediction and Evaluation Study on Major Reservoir Revived Landslides after the Impoundment of Three Gorges Reservoir Area[R]. Yichang: China Three Gorges University, 2013. (in Chinese))
[3] WANG F W, ZHANG Y M. Deformation Features of Shuping Landslide Caused by Water Level Changes in Three Gorges Reservoir Area,China[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(3):1 371-1 386.
[4] 汪发武,彭轩明.三峡库区千将坪滑坡的高速远程滑动机理与库水位变动条件下树坪滑坡的变形模式[C]∥第八届全国工程地质大会论文集. 北京:工程地质学报编辑部,2008:536-541. (WANG Fa-wu, PENG Xuan-ming. Rapid and Long-travel Mechanism of Qianjiangping Landslide and Deformation Model of Shuping Landslide in Three Gorges Reservoir Area[C]∥Proceedings of the 8th China Engineering Geology Congress. Beijing: Editorial Office Journal of Engineering Geology, 2008:536-541.(in Chinese))
[5] WANG G, ZHANG Y M, WANG F W. Displacement Monitoring on Shuping Landslide in the Three Gorges Dam Reservoir Area, China from August 2004 to July 2007[C]∥ CHEN Z Y, ZHANG J M, HO K, et al. Proceedings of the 10th International Symposium on Landslides and Engineered Slopes(Vol.2), Xian, China, June 30-July 4, 2008: 1321-1327.
[6] 李小凡,MULLER J P.基于TerraSAR-X强度图像相关法测量三峡树坪滑坡时空形变[J].岩石学报,2011,27(12):3844-3850. (LI Xiao-fan, MULLER J P. Measuring Displacement Field from TerraSAR-X Amplitude Images by Subpixel Correlation: (An Application to the Landslide in Shuping, Three Gorges Area[J].Acta Petrologica Sinica,2011, 27(12):3844-3850. (in Chinese))
[7] 肖诗荣,胡志宇,卢树盛,等.三峡库区水库复活型滑坡分类[J].长江科学院院报,2013,30(11):39-44. (XIAO Shi-rong, HU Zhi-yu, LU Shu-sheng ,et al. Classification of Reservoir-Triggered Landslides in Three Gorges Reservoir Area[J]. Journal of Yangtze River Scientific Research Institute, 2013,30(11):39-44. (in Chinese))
[8] 易武,尚敏,黄海峰,等. 秭归树坪滑坡地质模型研究报告[R].宜昌:三峡库区地质灾害教育部重点实验室,2010. (YI Wu, SHANG Min, HUANG Hai-feng, et al. Research Report of Geological Model of Shuping Landslide in Zigui County[R].Yichang: Key Laboratory of Geological Hazards on Three Gorges Reservoir Area under Ministry of Education,2010.(in Chinese))
[9] 王力,王世梅,向玲. 库水下降联合降雨作用下树坪滑坡流固耦合分析[J].长江科学院院报,2014,31(6):25-31. (WANG Li, WANG Shi-mei, XIANG Ling. Interaction of Coupling Seepage and Stress of Shuping Landslide under the Condition of Reservoir Water Decline and Rainfall[J]. Journal of Yangtze River Scientific Research Institute, 2014,31(6):25-31.(in Chinese))
[10]王力. 库水联合降雨作用下三峡库区树坪滑坡复活机理研究及预测评价[D].宜昌:三峡大学,2014.(WANG Li. Research of Revived Mechanism and Prediction of Shuping Landslide under Water Level Variation and Rainfall in Three Gorges Reservoir Area[D]. Yichang:China Three Gorges University,2014. (in Chinese))[11]FELL R,HO K K S,LACASSE S,LEROI E.A Framework for Landslide Risk Assessment and Management[C]//HUNGR O, FELL R, COUTURE R. Proceedings of the International Conference on Landslide Risk Management, Vancouver, Canada, May 31-June 3,2005:3-25.
[12]王雁林,郝俊卿,赵法锁,等.汶川地震陕西重灾区地质灾害风险区划探讨[J].灾害学,2011,26(4):35-39.(WANG Yan-lin,HAO Jun-qin,ZHAO Fa-suo,et al. The Geological Disaster Risk Zoning Discuss of Wenchuan Earthquake Hardest-hit Areas in Shaanxi Province[J].Journal of Catastrophology,2011,26(4):35-39.(in Chinese))