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拆除爆破过程中,构筑物倒塌触地引起的振动危害是主要的负面效应之一。本文应用力学和数学分析方法,从能量角度分析了建(构)筑物塌落撞击地面的触地动能及触地速度、地面被撞击后的能量分布,以及塌落地震波的震源能量。最后计算了构筑物倒塌触地时的冲击力。所得成果可为塌落振害的爆前预测提供理论依据。
Demolition blasting process, the collapse of the structure caused by the vibration hazard is one of the main negative effects. In this paper, we use mechanics and mathematical analysis methods to analyze the kinetic energy of touchdown and touchdown of slump impact on the ground from the energy point of view, the energy distribution after the ground is hit and the source energy of slump seismic wave. Finally, it calculates the impact force when the structure collapses and touches the ground. The results can provide a theoretical basis for predicting the explosion before collapse.