在采用控制爆破方法拆除高大建筑物工程中,不可避免会对周围建筑物和设备产生一定程度的振动影响,尤其是建筑物倒塌触地冲击振动的影响.分析了高大建筑物倒塌触地振动的理论计算方法,并提出了相应的控制倒塌触地振动的措施,且简单分析了这些控振措施的控振原理,最后在爆破拆除实践工程中对这些控振措施进行了现场测试检验,测试结果表明,提出的控振措施减振效果明显,实测振速值小于理论计算振速值(最大减振幅度可以达到60%).
During the course of blasting tall buildings,it inevitably leads to a certain degree of vibration in surrounding buildings and equipment,especially the impact of vibration and shock when the building land on the ground.First,the paper analyzes the theoretical calculation of blasting vibration and puts forward some corresponding control measures.Then,simply analyzes the principles of these measures.Finally,the authors have tested these measures in the practice blasting work by contrasting the measured and calculated value,these control measures have significant effect of decreasing blasting vibration,and the measuned vibration value is less than the theoretical calculated value(the most antivibration scope is 60%).