土工基础

›› 2016, Vol. 30 ›› Issue (5): 593-595.

• 工程实录 • 上一篇    下一篇

压实膨胀土表面裂隙规律试验研究

易 远，汪为巍，张正亚，陈前广   

  1. （武汉轻工大学，武汉 430071）
  • 收稿日期:2015-10-14 修回日期:2015-10-30 出版日期:2016-10-20 发布日期:2016-10-31
  • 作者简介:易 远（1994-），男，硕士研究生，研究方向为非饱和土力学特性。

Experimental Studies on Cracks on the Surface of Compacted Expansive Soil

YI Yuan, WANG Weiwei, ZHANG Zhengya， CHEN Qianguang   

  1. (Wuhan Polytechnic University, Wuhan, 430071)
  • Received:2015-10-14 Revised:2015-10-30 Online:2016-10-20 Published:2016-10-31

摘要： 以南阳地区膨胀土为研究对象，通过室内试验模拟不同压实度工况条件，将制备处理好的饱和土样试件放置于设定温度的烘箱，使用数码摄影设备记录土样表面状态。获得膨胀土裂隙图像后运用MATLAB软件图像数字化处理方法分析研究膨胀土表面裂隙的裂隙率、宽度、长度。将记录的数据录入到EXCEL表格中，经过处理后获得裂隙的裂隙率、宽度、长度定量化特征图，分析得到膨胀土表面裂隙演化规律，得出一些有益的结论。

关键词: 表面裂隙, 数码摄影, MATLAB, 演化规律

Abstract: The crack propagation patterns in different uniform samples and crack development in samples with different degrees of compaction are studied on the expansive soil samples in Nanyang. The prepared saturated samples simulating the different working conditions were first weighted and then placed in a constant temperature oven. The surface images of the sample were digitally recorded. The number, width, and length of the cracks expansive soils were processed and analyzed with MATLAB. The processed data are logged into the EXCEL spreadsheets and then are presented in line charts. The line chart can presents the quantitative features of the cracks and their developments.

Key words: Surface Cracks, Digital Photograph, MATLAB, Evolution Rules