Study on Blasting Effect on Tailings Pond

In order to study the liquefaction and damage of tailing sands under blasting vibration, series of explosion experiments were done in the experimental tailings pond. The explosives are buried in the tailings dry beach. Explosions created blasting crater, arc shaped regular cracks, and accompanied by sand boil and water eruption. The blasting vibration velocity and acceleration sensors are set in the tailings dry beach and dam body and to measure the blasting vibration velocity and acceleration. Regression analyses on experimental data, the blasting vibration velocity which can cause tailings sand liquefaction and damage are respectively 23.94cm/s. This result can be used as reference to safety allowable vibration speed of tailings dam under blasting vibration effect.