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| FRACTAL CHARACTERISTICS OF LANDSLIDE MONITORING POINT MOVEMENT TRACE AND ITS APPLICATION |
| HU Xianming，YAN Echuan，ZHOU Yu，ZHANG Tingting |
| (Faculty of Engineering，China University of Geosciences，Hubei，Wuhan 430074，China) |
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Abstract Through analyzing the monitoring data of the landslide，it indicates that the monitoring point?s accumulation displacement amounts depended on the monitoring periods，which reflects the characteristics of fractal. At the same time，based on the landslide fissures development process，the motion directions of the landslide internal points are getting uniform，and the motion fractal dimension number reduced. Taking a landslide in Three-Gorge area for example，this landslide is creeping with a constant velocity according to the analysis of the macroscopic deformations. Meanwhile，the fractal dimension numbers of the GPS monitoring points motion trajectory curves are calculated by the box-counting law from 2007 to 2009 year，and the results are all close to 1. The results indicate that the motion directions of the monitoring points become uniform；and the dominant controlling factor plays an important role in the landslide deformation；it is consistent with the reality deformation features. Therefore，the fractal theory applying to the monitoring point?s motion trajectory analysis is an effective way to use the monitoring data to judge and predict the landslide development stage.
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Received: 22 April 2011
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2012, Vol. 31 
