Simulation of Landslide Seepage Field with the Action of Reservoir Water Fluctuations

Article Preview

Abstract:

Taking a landslide in the three gorges reservoir area as an example and considering the seepage field in different time periods with rise and fall of reservoir water level of the eight conditions, we use GEO-STUDIO / SEEP module to establish a seepage model and to calculate the distribution of seepage. The results showed that: the groundwater saturation line appears in the back-phenomenon during a certain range of slope in the rising water level, saturation line was concave shape, and with the rate of increase in water level increased and that concavity gradually increase; the groundwater saturation line appears in the downstream phenomenon during a certain range of slope in the drawdown water level, saturation line was convex shape, and with the rate of decline in water level increased and that convexity increases. The effective simulation studies of the greatly and cyclical fluctuations of water level under the slope seepage field has a certain reference meaning to the landslide control in the reservoir water level fluctuations about reservoir bank landslide.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

4802-4807

Citation:

Online since:

July 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Bofang Zhu: The principles and Applications of Finite Element Methods. (Water Resource and Hydropower Publishing House, Beijing 1998).

Google Scholar

[2] Hongkai Chen: Review on Seepage Researches of Fissured Rock Mass(Ⅱ). Journal of Chongqing Jiaotong Institute, Vol. 15 (1996), pp.29-34, in Chinese.

Google Scholar

[3] Yangsheng Zhao: Mine rock fluid mechanics. (Coal Industry Press, Beijing 1994), in Chinese.

Google Scholar

[4] Dong Yang, Yangsheng Zhao, Kanglian Duan et. al: The Hydraulic Model of Rockmass with Generalized Double Porosity Media and its Fem Simulation. Chinese Journal of Rock Mechanics and Engineering, Vol. 19 (2000), pp.152-155, in Chinese.

Google Scholar

[5] D.V. Griffiths and P.A. Lane: Slope Stability Analysis by Finite Elements. Geotechnique, Vol. 49 (1999), pp.357-403.

Google Scholar

[6] Luming Zhang, Min He, Mingxin Zheng et. al: Effects Analysis of Rainfall Infiltration on the Landslide Seepage Field and Stability. Journal of Railway Eengineering Society, Vol. 07 (2009), pp.15-19, in Chinese.

Google Scholar

[7] Zhuo Zhang, Jijian Lian and Xiaohui Yang: The Analysis of Seepage Field in Rock Slope Under Different Rainfall Degrees. Journal of Hydroelectric Engineering, Vol. 259 (2006), pp.27-30, in Chinese.

Google Scholar

[8] Songjiang Zhao and Shuqin Sun: Application of MODFLOW in Simulating Groundwater Seepage Flowing Field of Tiantai Landslide in Sichuan Province. Journal of Catastrophology, Vol. 22 (2007), pp.50-53, in Chinese.

Google Scholar

[9] Shusheng Lu, Quancai Xin, Shirong Xiao et. al: Coupling Numerical Analysis of Seepage and Stress Fields of Slope When the Water Rapid Drawdown. Hydrogeology & Engineering Geology, Vol. 37 (2010), pp.130-133, in Chinese.

Google Scholar

[10] Ng Wangwai Charles, Shouyi Chen and Yuewai Pang: Parametric Study of Effects of Rain Infiltration on Unsaturated Slopes. Rock and Soil Mechanics, Vol. 20 (1999), pp.1-14, in Chinese.

Google Scholar