Novel Method to Determine the Image Segmentation Threshold during the Quantitative Test on Meso-structure of Geo-material
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2017年第6期
论文作者：胡启军 CAI Qijie HE Leping ZHAO Xiang SHI Rendan YE Tao
文章页码：1408 - 1412
摘 要：As a kind of special material in geotechnical engineering, the mudded weak interlayer plays a crucial part in slope stability. In this paper, we presented a method to determine the threshold value of section micrographs of the mudded weak interlayer in slope during its meso-structure qualification process. Some soil tests, scanning electron microscopy（SEM） and image segmentation technology were performed to fulfill our purpose. Specifically, the relation between 3 D-porosity and the threshold was obtained by least square fitting of the threshold-porosity curves and a simplified pore equivalent model. Using this relation and the 3 D-porosity determined by soil experiments, we can figure out the polynomial equation of the threshold value. The threshold values obtained by the other existing methods in literature were employed to validate our present results.
胡启军1，CAI Qijie2，HE Leping1，ZHAO Xiang1，SHI Rendan1，YE Tao1
1. School of Civil Engineering and Architecture, Southwest Petroleum University2. School of Transportation and Logistics, Southwest Jiaotong University
摘 要：As a kind of special material in geotechnical engineering, the mudded weak interlayer plays a crucial part in slope stability. In this paper, we presented a method to determine the threshold value of section micrographs of the mudded weak interlayer in slope during its meso-structure qualification process. Some soil tests, scanning electron microscopy（SEM） and image segmentation technology were performed to fulfill our purpose. Specifically, the relation between 3 D-porosity and the threshold was obtained by least square fitting of the threshold-porosity curves and a simplified pore equivalent model. Using this relation and the 3 D-porosity determined by soil experiments, we can figure out the polynomial equation of the threshold value. The threshold values obtained by the other existing methods in literature were employed to validate our present results.
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