›› 2008, Vol. 29 ›› Issue (11): 2983-2989.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A displacement dynamics parameter of debris landslide induced by water and its application to stability evaluation—— Taking Huanglashi landslide in Three Gorges Reservoir area for example

HE Ke-qiang1, 2, LI Xiang-ran3, SUN Lin-na1, WANG Si-jing4   

  1. 1. Research Institute of Geotechnical Engineering, Qingdao Technological University, Qingdao 266033, China; 2. Key Laboratory of Geological Hazards of Three Gorges Reservoir Area, of Ministry of Education, China Three Gorges University, Yichang 443002, China; 3. Yantai University, Yantai 264005, China; 4. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
  • Received:2007-05-31 Online:2008-11-10 Published:2013-08-07

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Abstract: Based on systematic analysis of the composition and mechanism of the debris landslides, this paper first proposes that the monthly rainfall and its change can be selected as the load-unload dynamical parameter, the average displacement velocity and its changes as the dynamical response parameter to load-unload and the displacement load-unload response ratio as the displacement dynamics parameter of debris landslide induced by water in term of the principle of the load-unload response ratio theory. Meanwhile, on the basis of analysis of the data of the displacement and rainfall of the debris landslides in the Three Gorges Reservoirs area, the feasibility and effectiveness of the displacement dynamics parameter are discussed. Finally, the stability of Huanglashi slope in the Three Gorges area before and after the water drainage are evaluated respectively by means of the dynamical parameter of the load-unload response ratio; and the evaluated results are well agreed with the practical stability situation of the slope. Therefore, all results above show that the dynamical parameter of load-unload response ratio proposed is a very effective displacement dynamical parameter in the stability evaluation of debris slopes; and it can be used in the evaluation of the stability of debris landslides induced by water.

Key words: debris landslide, displacement dynamics parameter, load-unload response ratio, Huanglashi landslide

CLC Number: 

  • TU 459
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] WANG Wei-zao , XU Qiang , ZHENG Guang , LI Jia-yu , LUO Bo-yu，. Centrifugal model tests on sliding failure of gentle debris slope under rainfall [J]. , 2016, 37(1): 87-95.
[2] HE Ke-qiang , YANG De-bing , GUO Lu , LI Jing,. Prediction parameter of water dynamics coupled with displacement and evaluation method of debris landslide [J]. , 2015, 36(S2): 37-46.
[3] XU Jian-cong , SHANG Yue-quan . Study on mechanism of disintegration deformation and failure of debris landslide under rainfall [J]. , 2008, 29(1): 106-112.
[4] XU Jian-cong, SHANG Yue-quan. Sensitivity analysis of influencing factors of debris landslide [J]. , 2007, 28(10): 2046-2051.
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