【摘要】 爆破借助爆炸能做功,它是一种在地上和地下工程中广泛使用的廉价、经济的岩土开挖方式。爆破造成的振动会对附近结构及周围场地产生不利影响;振动峰值速度通常被用来评价爆破地震风险。已有一些预报爆破振动峰值速度的公式和方法,但在超出了推导这些公式的特定条件时,它们是不适用的。爆破地震波在岩土体中传播时,地面振动是复杂的,受许多因素影响。论文探讨了爆破振动峰值速度预报的公式法和Fourmap方法;特别地,作者还尝试利用人工神经网络预报了爆破振动峰值速度。更多还原

【Abstract】 Blasting does work using explosion energy.It is a cheap and economical means of rock and soil excavation and widely used in ground and underground excavating engineering projects.Blast-induced ground vibration has harmful impacts on nearby structures and fields.The peak particle vibration velocity produced by ground vibration is commonly used to evaluate the risk of blast earthquake.There have been some empirical equations and methods to predict the peak ground vibration velocity,however,these equations are invalid when the specific conditions used for deduction can’t be met.When blast earthquake wave propagates in rock and soil masses,ground vibration is complex and is influenced by many parameters.A discussion about the empirical equations and Fourmap method predicting the peak ground vibration velocity due to blasting was performed.Farther more,an attempt was made to predict the peak ground vibration velocity in blast earthquake by using an artificial neural network.更多还原