Influence Analysis of Blasting Vibration on Slope Stability and Building Cracking
The resettlement site of Badu Village is leveled by blasting,and a large number of cracks appear in the houses in Nongzhong Village.It is necessary to analyze the influence of blasting vibration on the stability of the slope and the cracking of the buildings in Nongzhong Village.Based on the actual project,the authors adopt the theoretical formula to derive the calculation method of slope stability under blasting condition;The large-scale finite element software ANSYS is used to simulate the blasting vibration,and the explosive quantity of the allowable vibration velocity of the building safety is deduced.The results show that when the explosive quantity of the resettlement site is 350 kg,the blasting vibration force on the slope is equivalent to the seismic horizontal force generated when the seismic intensity is 7 degrees;When the explosive quantity of the resettlement site is greater than the allowable vibration velocity of the building safety,the structural cracks of the building are caused by blasting.
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