Simulation on influence of different loading rates on Jinping marble in uniaxial compression test by PFC2D
Rock mechanical behaviors will be changed when the loading rates is different. The loading rate is treated as an initial influence on rock mechanical parameters. Considering the complex inner structure, the dynamical response is more uncertain. The uniaxial compression tests have been finished on Jinping marble, and the tests results can be used to confirm the micro-parameters of particle flow code (PFC). The numerical simulation is coincidence well with the uniaxial compression test. Then based on the numerical result, the numerical tests of uniaixal compression are designed by different loading rates. The rock failure process, crack propagation, the relation between stress and strain and the energy are studied by PFC. The results show that the rock mechanical behavior can be simulated well by PFC and the failure model and the crack number are affected by the loading rates.
N. Liu C.S. Zhang
HydroChina Huadong Engineering Corporation, Hangzhou, China
国际会议
The 2nd ISRM International Young ScholarsSymposium on Rock Mechanics(第二届国际岩石力学青年学者研讨会)
北京
英文
327-329
2011-10-14（万方平台首次上网日期，不代表论文的发表时间）