工程地质学报2011，Vol.19Issue(4)：478-482,5.
干湿循环条件下膨胀土裂隙特征分形研究
FRACTAL RESEARCH THE CRACK CHARACTERISTIC EXPANSIVE SOIL UNDER WETTING-DRYING CYCLE
摘要
Abstract
By means of the wetting-drying cycle tests of triaxial and direct-shear on the expansive soil. The test finds that with first wetting-drying cycle triaxial test, the crack ratio in expansive soil sample surface is the largest increase,with second to fourth wetting-drying cycle,the crack ratio in expansive soil sample surface is the bigger increase. And the crack ratio in expansive soil sample surface is the little increase, with the wetting-drying cycle is more than five. And the same result is finds in the direct-shear test. All in all, With the number of times wetting-drying cycle increasingly, the crack ratio in expansive soil sample surface is constantly increasing.关键词
膨胀土/干湿循环/裂隙/分形Key words
Expansive soil/Witting-drying cycle/Crack/Fractal分类
天文与地球科学引用本文复制引用
包惠明,魏雪丰..干湿循环条件下膨胀土裂隙特征分形研究[J].工程地质学报,2011,19(4):478-482,5.基金项目
国家自然科学基金项目(50868003)和广西自然科学基金项目(GKN 07109005-6) （50868003）
