文档介绍：
基于 Matlab 对强夯法处理黄土湿陷性的微
观结构研究
苗得雨,马富丽,王敏,白晓红
(太原理工大学建筑与土木工程学院,太原 030024)
摘要:黄土的湿陷性与其微观结构有极大关系,土体的物理力学性状也很大程度上受其微观
结构影响。针对湿陷性黄土微观研究中的问题,对山西省平阳高速中强夯法处理湿陷性黄土
进行微观层面上的定性和定量的研究分析。从土样提取与制备到 SEM 图像扫描,开展了详
实的探讨。针对 SEM 图像的特征及其处理过程中存在的问题,使用 Matlab 对图像预处理中
去除亮度差异背景,对比度增强,降噪做了对比分析,通过预处理可以使图像信息在采集阶
段较为精确地进行统计计算分析,对比分析了强夯前后的孔隙数量及面积分布、定向特征、
形状特征等参数,对土体 SEM 图像处理和强夯法消除湿陷性机理做较为深入的探讨,为科
研和工程建设提供参考依据。
关键词:湿陷性黄土;强夯法;微观结构;Matlab;SEM 图像;阈值
中图分类号:TU444
文献标志码:A
Microstructural research using Matlab on collapsible loess
by paction method
Miao Deyu, Ma Fuli, Wang Min, Bai Xiaohong
(College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan
030024, China)
Abstract: Collapsibility of loess is related to its microstructure. The physical and mechanical
properties of soil are influenced by its microstructure to a large extent. For the problem of collapsibility
of loess in microscopic study, we did the qualitative and quantitative analyses of collapsible loess at a
microscopic level. The samples that underwent paction were taken from Pingyang
Highway in Shanxi. Extraction and preparation of soil samples were introduced and scanning electron
microscope (SEM) images were obtained. For the features and problems found in the SEM images
processing, we applied Matlab parative analysis of removal of background brightness
difference, contrast enhancement and