Deformation forecasting of huangtupo riverside landslide in the case of frequent microseisms

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• 作者：Jiwei Jiang ; Wei Xiang ; Wei Zhang ; Jiajun Pan
• 关键词：landslide ; frequent microseisms ; deformation forecasting ; multi ; field coupling
• 刊名：Journal of Earth Science
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：27
• 期：1
• 页码：160-166
• 全文大小：6,340 KB
• 参考文献：Baisch, S., Vörös, R., Rothert, E., et al., 2010. A Numerical Model for Fluid Injection Induced Seismicity at Soultz-Sous-Forêts. International Journal of Rock Mechanics and Mining Sciences, 47(3): 405–413. doi:10.1016/j.ijrmms.2009.10.001CrossRef
  China National Standardization Management Committee, 2009. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China: GB/T 17742-2008. Standards Press of China, Beijing. 2
  Durá-Gómez, I., Talwani, P., 2010. Reservoir-Induced Seismicity Associated with the Itoiz Reservoir, Spain: A Case Study. Geophysical Journal International, 181(1): 343–356. doi:10.1111/j.1365–246x.2009.04462.xCrossRef
  Han, X. G., Rao, Y. Y., 2004. Analysis of Genesis of Reservoir-Induced Microquakes in Badong Reach of Three Gorges. Crustal Deformation and Earthquake, 24(2): 74–77
  Jiang, J. W., 2012. Research on the Deformation Mechanism and Dynamic Response of Typical Landslides in Three Gorges Reservoir in Case of Frequent Microseisms: [Dissertation]. China University of Geosciences, Wuhan (in Chinese with English Abstract)
  Jiang, J. W., Xiang, W., Zhang, X. Y., 2011. Research on Mechanical Parameters of Intact Sliding Zone Soils of Huangtupo Landslide Based on CTS canning and Simulation Tests. Chinese Journal of Rock Mechanics and Engineering, 30(5): 1025–1033
  Li, P., Li, Y. J., Wang, M. E., 2005. A Study of Reservoir Induced Earthquake in the Three Gorges Area. Engineering Science, 7(6): 14–20
  Ni, W. D., Tang, H. M., Liu, X., et al., 2014. Dynamic Stability Analysis of Wedge in Rock Slope Based on Kinetic Vector Method. Journal of Earth Science, 25(4): 749–756CrossRef
  Simpson, D. W., 1976. Seismicity Changes Associated with Reservoir Loading. Engineering Geology, 10(2–4): 123–150. doi:10.1016/0013-7952(76)90016-8CrossRef
  Wang, Q. L., Yao, Y. S., Xia, J. W., et al., 2009. Application of Statistical Forecasting Model to the Prediction of the Three Gorges Reservoir Induced Seismicity. Seismology and Geology, 31(2): 287–294
  Wu, J. N., 1981. Rock Softening and Reservoir-Induced Seismicity. South China Journal of Seismology, 1(1): 84–95 (in Chinese with English Abstract)
  
• 作者单位：Jiwei Jiang (1)
  Wei Xiang (2)
  Wei Zhang (1)
  Jiajun Pan (1)
  
  1. Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan, 430010, China
  2. Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China
  
• 刊物主题：Earth Sciences, general; Geotechnical Engineering & Applied Earth Sciences; Biogeosciences; Geochemistry; Geology;
• 出版者：Springer Berlin Heidelberg
• ISSN：1867-111X

文摘

Ever since the impoundment of Three Gorges Reservoir (TGR), the seismicity in head region of TGR has increased significantly. Coupled with wide fluctuation of water level each year, it becomes more important to study the deformation forecasting of landslides beside TGR. As a famous active landslide beside TGR, Huangtupo riverside landslide is selected for a case study. Based on long term water level fluctuation and seismic monitoring, three typical adverse conditions are determined. With the established 3D numerical landslide model, seepage-dynamic coupling calculation is conducted under the seismic intensity of V degree. Results are as follows: 1. the dynamic water pressure formed by water level fluctuation will intensify the deformation of landslide; 2. under seismic load, the dynamic hysteresis is significant in defective geological bodies, such as weak layer and slip zone soil, because of much higher damping ratios, the seismic accelerate would be amplified in these elements; 3. microseisms are not intense enough to cause the landslide instability suddenly, but long term deformation accumulation effect of landslide should be paid more attention; 4. in numerical simulation, the factors of unbalance force and excess pore pressure also can be used in forecasting deformation tendency of landslide. Key Words landslide frequent microseisms deformation forecasting multi-field coupling