不同减震物对塌落振动减震效果的试验研究  

On the Damping Effect of Different Damping Materials to Collapse Vibration

作　　者：于鹏 赵勇 郭爱清 论文安 李振 

机构地区：[1]安徽雷鸣爆破工程有限责任公司,淮北235000 [2]中煤科工集团淮北爆破技术研究院有限公司,淮北235000

出　　处：《价值工程》2016年第29期152-153,共2页Value Engineering

摘　　要：利用混凝土试块重复倾倒来模拟建筑构塌落倾倒的过程,用爆破测振仪采集塌落振动信号[1],通过使用不同减震物放在混凝土试块倾倒前方研究其减震效果。实验结果表明:当减震物为稻草时,塌落振动产生的地震波峰值振速衰减速度更快,减震效果最好;黄沙次之。随着距震源的距离不断增加,有减震物的减震效果虽然有所下降,但仍然比无减震物时好。By imitating the collapse of concrete blocks,we carry out the falling of constructions demolition blastingwe adopt vibration meter to collect collapse vibration signals,we study the damping effects by putting different damping materials in front of the falling concrete blocks. Results showed that seismic wave peak resulted from collapse vibration reduces faster, the mitigation effect is the best when damping material is straws, the second best is the sand the mitigation effect reduces when the distance from the source grows, but it is better than no damping material.

关 键 词：减震物 塌落振动 峰值振速 减震效果 

分 类 号：TU746.5[建筑科学—建筑技术科学]