废旧弹药爆破销毁技术综述

结合多年的废旧弹药销毁经验,总结了废旧弹药的识别方法,阐述了废旧弹药的当量估算与安全距离校核,论述了爆破销毁技术,以及销毁中为防止事故应做到的一般程序。

COMPARISON BETWEEN BLASTING VIBRATION AND TOUCHDOWN VIBRATION IN DEMOLISHING COLLAPSE OF A 79M HIGH CHIMNEY

Near the chimney in the south six measuring points were arranged along the direction of collapse.Regression analysis of the attenuation law of blasting and touchdown vibrations in the demolition of the chimney was carried out.The analysis suggested that the K value in attenuation law was much smaller than that in the law from the common mini-hole blasting of earth rock(40mm).The time history of the vibration wave was analyzed,indicating that the whole waves mainly consisted of blasting vibration,touchdown vibration of the upper lip of the nick and touchdown vibration of the chimney.The three vibrations were discussed by comparing the vibrating velocity and frequency characters,suggesting that the touchdown vibration shared the biggest velocity and lowest frequency,resulting that keeping some certain thickness of waste residue of building and laying sand bag wall had good effect of vibration relieving.