Monitoring the triggering of liquefaction using image processing
College
Gokongwei College of Engineering
Department/Unit
Civil Engineering
Document Type
Article
Source Title
International Journal of GEOMATE
Volume
15
Issue
51
First Page
180
Last Page
187
Publication Date
11-2018
Abstract
In recent studies triggering or initiation of liquefaction is usually performed to characterize the potential of the soil to liquefy. Its behavior before, during and after liquefaction in a laboratory test needs to be understood. Image processing was implemented to monitor the triggering of liquefaction and estimate the cyclic shear strain that would trigger liquefaction. Lucas and Kanade pyramidal optical flow algorithm were used to track the movement of the soil. A mirrorless camera was the instrument used. The strain-controlled consolidated undrained cyclic triaxial test was performed. The loose condition was tested at 2.4, 1.6 and 0.8 mm strain amplitudes. The confining pressures used were 50, 100 and 200 kPa. Based on the results, the estimated values for the cyclic shear strain that would trigger liquefaction had a range of values due to the occurrence of non-homogeneous deformation. The minimum values were in agreement with the typical values while the maximum values were larger. For the behavior of the soil before, during and after liquefaction had occurred, the deformation behavior was different. More deformations were observed after the triggering of liquefaction.
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Recommended Citation
Uy, E. S. (2018). Monitoring the triggering of liquefaction using image processing. International Journal of GEOMATE, 15 (51), 180-187. Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/6631
Disciplines
Civil Engineering
Keywords
Soil liquefaction; Image processing
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