LIU En-long, CHEN Sheng-shui, LI Guo-ying, et al. A constitutive model for rockfill materials incorporating grain crushing under cyclic loading[J]. 2012, 33(7).
LIU En-long, CHEN Sheng-shui, LI Guo-ying, et al. A constitutive model for rockfill materials incorporating grain crushing under cyclic loading[J]. 2012, 33(7).DOI:
There are many 200-300 m high rockfill dams constructed in high earthquake areas located in western areas of China. The grain crushing of rockfill materials with high stress level has significant influence on the stress-strain properties under cyclic loading. Based on the theory of generalized plasticity
and by introducing state parameters
a new dynamic constitutive model for rockfill materials is formulated; and the determination of model parameters is provided as well. Finally the constitutive model is used to model the test results of rockfill materials at 400
800
1 500
2 200 kPa consolidated pressures respectively
which verifies that the proposed constitutive model can simulate well the dynamic stress and dynamic strain responses of rockfill materials under cyclic loading considering grain crushing.