【摘要】 高大建筑物爆破拆除时的振动是由炸药爆炸引起的振动和倒塌冲击触地产生的触地振动2部分组成的,触地振动所带来的影响往往远比炸药爆炸引起的振动影响要大。通过对某联体筒形圆仓群的爆破拆除振动测试结果分析,研究分析了爆破拆除的触地振动的垂直速度及其主频的分布特点,并通过在仓体触地位置采取覆盖3.5 m厚的黄土层和微差爆破技术等的减振措施,有效地控制了联体筒形圆仓倒塌的触地振动,大大地减少了爆破振动对周围设施的影响。更多还原

【Abstract】 The vibration caused by demolishing tall buildings is composed of the explosion vibration and the touchdown vibration,the impact caused by the touchdown vibration is often far greater than the explosive detonation.Through analyzing the monitored vibration results on the certain conjoined cylindrical silos,the distribution characteristic of vertical velocity and its main frequency of touchtown vibration was analyzed.Through adopting the shock absorption measures of delay finring and 3.5 m soil covering in touch site,the touchtown vibration was effectly controlled and the impact on the surrounding facilities was also greatly reduced.更多还原