摘要
水下爆炸引起的振动会波及附近建筑物,是爆破安全必须考虑的问题。采用UBOX-5016型爆破震动记录仪对某一小水池中炸药爆炸产生的振动效应进行了测试和分析,并对所测波形进行频谱分析,得到该水下爆炸地震波的主震频率在12~60Hz,大于建（构）筑物的固有频率（几赫兹至十几赫兹）,当建（构）筑物固有频率同爆破振动频率接近时,将会产生共振效应,较小的振动也会产生较大的破坏,因此,测试过程不会对火工楼造成太大的影响。研究结果对类似的新建实验室及相关工程实践具有较大的参考价值。
Vibrations induced by underwater explosion can affect neighboring building,which must be taken into account in blasting safety.Dynamite blast vibration effect in small pool was investigated.Seismic waves generated by dynamite blast in the pool were registered by UBOX-blasting vibration recorder and spectrum of the seismic waves was analyzed.The results showed that main frequency of seismic waves induced by the underwater blast is between 12 ~ 60Hz,which is bigger than the natural frequency of building（structure）（a few Hz to more than a dozen Hz）.When natural frequency of building（structure） is close to vibration frequency by blasting,resonance effect will occur;smaller vibration will have greater damage.The blast in the experiment didn＇t affect the laboratory building.The results are valuable for the construction of the similar laboratory and other practical engineering.
出处
《安徽理工大学学报（自然科学版）》
CAS
2010年第4期47-51,共5页
Journal of Anhui University of Science and Technology:Natural Science
关键词
水下爆炸
地震波
频谱分析
underwater blast
seismic waves
spectrum analysis
