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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。
With the expansive soil in Nanyang area as the research object, the saturated soil sample prepared by the experiment was placed in the oven at the set temperature and the surface state of the soil sample was recorded by the digital photography equipment. After obtaining the expansive soil fissure image, the fracturing rate, width and length of the fissure on the expansive soil surface are analyzed by the digital image processing method of MATLAB software. The recorded data were entered into the EXCEL table, and the fracture rate, width and length of the fracture were quantitatively characterized after being processed. The evolution of the fracture surface on the swelling soil surface was analyzed and some useful conclusions were drawn.