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An Analysis on Creep Damage of Frozen Loess by Electronmicroscope

Zhang Changqing, Miao Tiande, Wang Jiacheng, Miao Lina and Li Yafeng( State Key Laboratory of Frozen Soil Engineering, LIGG, CAS, 730000; Department of Mechanics, Lanzhou University, 730000)  
The paper advances some new development of artificially frozen loess in uniaxial creep test. Based on the study and result of structure electronmicroscope, some new recognition on the microstructure damage of frozen loess in the creep process is obtained.Microstructure damage degree and characteristic of frozen loess are similar to the dislocation of crystal ice. The damage characteristics are different at different stress levels and creep elapsed time.
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