Triaxial tests on wetting deformation behavior of a slate rockfill material
ZHU Jun-gao1,2, Mohamed A. ALsakran1,2, GONG Xuan1,2, XUANG Xiang-yang1,2, JI En-yue1,2
1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;
2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China
A number of large-scale triaxial tests are performed to investigate the wetting deformation behavior of a slate rockfill material. The relationship among wetting volumetric strain, shear strain, confining pressure and stress level is analyzed. The test results show that the wetting volumetric strain and the shear strain increase with the increase of both the confining pressure and the stress level. Using the test results, the applicability of Shen's wetting deformation model is verified for the test soil. It is found that Shen’s wetting deformation model can not satisfactorily reflect the wetting volumetric strain, but it can suitably reflect the relationship between the wetting shear strain and the stress state. By analyzing the shear strength behavior after wetting, the wetting under different stress levels has little influence on the strength parameter of the coarse-grained soil.
朱俊高, MohamedA.ALsakran, 龚选, 轩向阳, 吉恩跃. 某板岩粗粒料湿化特性三轴试验研究[J]. 岩土工程学报, 2013, 35(1): 170-174.
ZHU Jun-gao, Mohamed A. ALsakran, GONG Xuan, XUANG Xiang-yang, JI En-yue. Triaxial tests on wetting deformation behavior of a slate rockfill material. Chinese J. Geot. Eng., 2013, 35(1): 170-174.
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