Discrimination of damage and fracture information in rock and soil based on image measurement

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Discrimination of damage and fracture information in rock and soil based on image measurement

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- Discrimination of damage and fracture information in rock and soil based on image measurement
- Vol. 28, Issue S1, (2007)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所,武汉,430071
  2. 西安理工大学岩土工程研究所,陕西,710048
  3. 中国水利水电科学研究院,北京,100044
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：28 March 2014，
  
  Published：2007
- 稿件说明：
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YIN Xiao-tao, WANG Shui-lin, DANG Fa-ning, et al. Discrimination of damage and fracture information in rock and soil based on image measurement[J]. 2007, 28(S1).
DOI：

YIN Xiao-tao, WANG Shui-lin, DANG Fa-ning, et al. Discrimination of damage and fracture information in rock and soil based on image measurement[J]. 2007, 28(S1). DOI：

摘要

以CT图像资料为例，利用物理特征值分析和裸眼观察法分别对岩土材料损伤出现的时间进行了估计，证明单纯观察判断的局限性，随后利用等值线法确定了损伤出现的位置和扩展的方向，接着通过对试样区CT数的最大、最小值随加载变化曲线进行考察，确定了无损区、损伤区和破裂区的分区界限值，在该阈值下对各区进行了图像的二值化，最后对二值图进行了形态、几何和物理特征值的定量化描述。

Abstract

Based on CT images and utilizing analysis of physical characteristic value and naked eye observational estimate respectively

the time of damage appeared in the rock or soil is estimated so as to prove the limits of simple observation by eye. Then

using contour method determines the location of damage and judges its extending direction. Through analyzing curve of maximum and minimum of CT number and loading within specimen

the subarea thresholds of non-damage part

damage part and fracture part are determined. Moreover

binary images of each part are obtained under these thresholds. Finally

shape

geometry and physical characteristic value of these binary images are measured quantitatively.

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Related Author

LI Cheng-sheng

KONG Ling-wei

SHU Rong-jun

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Related Institution

Department of Civil and Environmental Engineering, Shantou University

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

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Faculty of Engineering, China University of Geosciences

Faculty of Engineering, China University of Geosciences

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