According to the actual situation of Jianshan phosphorite open-pit in Kunming

Yunnan

a finite element model of dynamic response of high open-pit slope under blasting vibration load is established by using ANSYS/LS-DYNA

and by inputting the measured blasting vibration waveform

we research the distribution characteristic of vibration velocity and stress in high slope under blasting vibration.The results show that:1 The results of numerical simulation agree well with the actual measurement and the established calculation model is verified;2 Closer to the blasting center

the blasting vibration velocity and the effective stress value are greater;3The maximum Von Mises stress is 1.21 MPa

far less than the failure criteria of 6.23 MPa

so the slope won′t be destroyed during blasting and still in a stable state.It is verified that the blasting vibration under the similar scale and the initiation way will not affect the high slope safety

and provide the basis of subsequent open-pit production blasting.