【摘要】 针对水城水钢集团治理技改工程中爆破拆除80 m高冷却风机烟囱的振动监测结果,分析其塌落触地震动特点,给出了震速回归方程,认为塌落体的塌落触地震动是危害地面受保护对象的主要能源。实践证明,爆破拆除所采取的高烟囱塌落触地减震堤坝措施可以有效降低塌落触地震动速率。更多还原

【Abstract】 Based on the results of vibration monitoring in the blasting demolition of a cooling fan chimney with a height of 80 meters in Shuicheng Steel & Iron Group,the characteristics of touchdown vibration caused by collapsing was analyzed,and the regression equation of particles’ vibration speed was presented.It was considered that touchdown vibration was the main factor to harm protected objects.The practice proved that vibration-reducing dike can availably lower the particle velocity of touchdown vibration in the blasting demolition of towering chimney.更多还原