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| Real-time monitoring of dynamic stability coefficient and displacement criterion of the creep slope |
| HE Keqiang，CHEN Weigong，ZHANG Peng |
(Engineering Technique Research Center of Geo-environment and Impact，Qingdao University of Technology，Qingdao，
Shandong 266033，China) |
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Abstract The process of creep displacement of landslide is essentially a damage process of rock mass of slope. The interaction between the creep deformation and the stability coefficient and the quantitative relationships of the creep displacement，the damage parameters and the stability coefficient were therefore investigated based on the systematic analysis on the deformation characteristics and the failure mechanisms of different deformation stages of creep landslide. The method of determining the dynamic stability coefficient of slope based on the creep displacement parameter was established. According to the safety factor of slope from the limit equilibrium method and the variation of the tangent angular rate and acceleration rate parameters of displacement curve，the displacement monitoring and early warning criterion and the early warning time points before sliding based on the safety factor of slope stability were determined. The typical landslide at Jimingsi was studied as an example and the results were compared with the ones from the method of Saito Michitakanori. It was found that the results of the analysis were basically consistent with the measured variation of the landslide.
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2016, Vol. 35 
