Please wait a minute...
ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2015, Vol. 16 Issue (2): 131-142    DOI: 10.1631/jzus.A1400039
Civil and Mechanical Engineering     
Impact of earthquake-induced-landslides on hydrologic response of a steep mountainous catchment: a case study of the Wenchuan earthquake zone
Qi-hua Ran, Qun Qian, Wei Li, Xu-dong Fu, Xiao Yu, Yue-ping Xu
Institute of Hydrology and Water Resources, Zhejiang University, Hangzhou 310027, China; State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China; China Three Gorges Corporation, Beijing 100038, China
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  Earthquake-induced-landslides will change the underlying surface conditions (topography, vegetation cover rate, etc.), which consequently may influence the hydrologic response and then change the flash flood risk. The Jianpinggou catchment, located in the Wenchuan earthquake (occurred in Sichuan, China, 2008) affected area, is selected as the study area. The distribution of the landslides is obtained from the remote sensing image data. The changes of topography are obtained from the comparisons among digital elevation models (DEMs) during different periods. A physical-based model, the integrated hydrology model (InHM), is used to simulate the hydrologic response before and after the landslide. The influence of the underlying surface conditions is then discussed based on the simulation results. The results reveal that landslides cause significant effects on the hydrologic response, and the impact is proportional to the proportion of surface flow in the total runoff. The effect of landslides on the runoff is insignificant at the outlet, but obvious in the local area. The larger the rainfall, the more visible the impact, and the impact of landslides will increase rapidly at the threshold of the runoff (the total rainfall of 235 mm in 6 h in the study area), but there is a limit with the further enlarged rainfall. The improved understanding of the impact of landslides on the hydrologic response provides valuable theoretical support for storm flood forecasting.

Key words： Underlying surface conditions      Landslide      Earthquake      Hydrologic response      Numerical simulation     
Received: 25 January 2014      Published: 03 February 2015
CLC:  TV121  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Qi-hua Ran
Qun Qian
Wei Li
Xu-dong Fu
Xiao Yu
Yue-ping Xu
Cite this article:

Qi-hua Ran, Qun Qian, Wei Li, Xu-dong Fu, Xiao Yu, Yue-ping Xu. Impact of earthquake-induced-landslides on hydrologic response of a steep mountainous catchment: a case study of the Wenchuan earthquake zone. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2015, 16(2): 131-142.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1400039     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2015/V16/I2/131

[1] Yi-feng Wu, Hao Wang, Ai-qun Li, Dong-ming Feng, Ben Sha, Yu-ping Zhang. Explicit finite element analysis and experimental verification of a sliding lead rubber bearing[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2017, 18(5): 363-376.
[2] Xiao-wen Song, Peng-zhe Lin, Rui Liu, Pei Zhou. Skin friction reduction characteristics of variable ovoid non-smooth surfaces[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2017, 18(1): 59-66.
[3] Tian-tian Zhang, Wei Huang, Zhen-guo Wang, Li Yan. A study of airfoil parameterization, modeling, and optimization based on the computational fluid dynamics method[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2016, 17(8): 632-645.
[4] Zhen-yu Wang, Yang Zhao, Guo-wei Ma, Zhi-guo He. A numerical study on the high-velocity impact behavior of pressure pipes[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2016, 17(6): 443-453.
[5] Han-jiang Lai, Jun-jie Zheng, Rong-jun Zhang, Ming-juan Cui. Visualization of the formation and features of soil arching within a piled embankment by discrete element method simulation[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2016, 17(10): 803-817.
[6] Peng-fei Li, Qian Fang, Ding-li Zhang. Analytical solutions of stresses and displacements for deep circular tunnels with liners in saturated ground[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2014, 15(6): 395-404.
[7] Zhou-hong Zong, Rui Zhou, Xue-yang Huang, Zhang-hua Xia. Seismic response study on a multi-span cable-stayed bridge scale model under multi-support excitations. Part I: shaking table tests[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2014, 15(5): 351-363.
[8] Zhi-jiang Jin, Lin Wei, Li-long Chen, Jin-yuan Qian, Ming Zhang. Numerical simulation and structure improvement of double throttling in a high parameter pressure reducing valve[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2013, 14(2): 137-146.
[9] Hai-jun Xuan, Lu-lu Liu, Yi-ming Feng, Qing He, Juan-juan Li. Containment of high-speed rotating disk fragments[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(9): 665-673.
[10] Yang Yu, Yue-quan Shang, Hong-yue Sun. Bending behavior of double-row stabilizing piles with constructional time delay[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(8): 596-609.
[11] Nu-wen Xu, Chun-an Tang, Hong Li, Feng Dai, Ke Ma, Jing-dong Shao, Ji-chang Wu. Excavation-induced microseismicity: microseismic monitoring and numerical simulation[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(6): 445-460.
[12] Xiao-bin Zhang, Wei Zhang, Xue-jun Zhang. Modeling droplet vaporization and combustion with the volume of fluid method at a small Reynolds number[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(5): 361-374.
[13] Qi-hua Ran, Dan-yang Su, Qun Qian, Xu-dong Fu, Guang-qian Wang, Zhi-guo He. Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(12): 943-957.
[14] Izuru Takewaki. Preliminary report of the 2011 off the Pacific coast of Tohoku Earthquake[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(5): 327-334.
[15] Zhao-dong Xu, Deng-xiang Wang, Ke-yi Wu. Simulation of stochastic wind field for large complex structures based on modified Fourier spectrum[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(3): 238-246.