摘要
土壤的孔隙一般具有分形特性。根据粘性土的SEM试验,利用计算机图像处理技术和分形理论(Sandbox法),研究了粘性土孔隙结构及其分形特性。根据设计的不同图像二值化分割阈值方案和不同放大系数分析方案,分析发现土孔隙分维数不受图像灰度分割阈值和SEM实验放大系数的影响,分维数在2.0附近。
Pore of soil has generally fractal feature. According to SEM test of soil,the pore structure and its fractal feature of clay is studied by means of computer image disposal technology and fractal theory （ sandbox method）. Based on different analysis schemes of segmentation threshold of gray value and amplification coefficient of SEM test, it is found that fractal dimension of soil isn＇t affected by segmentation threshold of gray value and amplification coefficient of SEM test,and that the fractal dimension of soil is near to 2.0.
出处
《城市勘测》
2008年第3期143-145,共3页
Urban Geotechnical Investigation & Surveying
基金
冻土工程国家重点实验室开放课题(SKLFSE200602)资助
