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http://dx.doi.org/10.14481/jkges.2015.16.3.41

3-D Analysis of Slope by Tension Wire Sensing  

Shin, Taeju (Department of Construction & Transportation, Yeongdong-gun Conuntry)
Kim, Taesoo (Highway & Transportation Technology Institute, Korea Expressway Corporation)
Hwang, Sanggoo (Department of Civil Engineering, Kumoh National Institute of Technology)
Han, Heuisoo (Department of Civil Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korean GEO-environmental Society / v.16, no.3, 2015 , pp. 41-48 More about this Journal
Abstract
Several sensor systems are used to estimate and predict the slope behaviors, however though slope sensing systems are much up-to-dated compared to before, they are mainly focused on the hardware developing. It means the analyzing software is deficient to apply the examining slope behavior for slope stability. In real case, slope behavior shows the 3-dimensional movement and failure; however the modeling methods for 3-D behavior are more difficult and need more variables. 1-D analysis shows only the length variation, however the real slope makes the 3-D behaviors. To fix the 3-D space coordinate, three values should be determined such as length, horizontal angle and vertical angle. Therefore if the 3-D coordinate system were composed by the points considered of two directions and length, the 3-D space could be separated into horizontal plane and vertical plane. The data from DY-slope in Chungbuk province was analyzed to the developed 3-D coordinate system. It is concluded from the results of 3-D analysis, the slope is generally moving to transverse direction, also the displacements are happening to road and vertical direction at the same time. Presently, the accumulated displacement between sensing points shows small value within 4.3 cm, and the displacements of all sensing points show the similar directions and magnitudes.
Keywords
Slope; In-situ sensing; Surface displacement; Tension wire; 3-D analysis;
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