小水池中水下爆炸地震波测试与分析

英文篇名：Test and Analysis of Seismic Waves of Underwater Explosion in Small Pool
中文刊名：安徽理工大学学报(自然科学版)
英文刊名：Journal of Anhui University of Science and Technology(Natural Science)
作者：曹祖贵 ; 郭子如 ; 姚笛 ; 高玉刚
英文作者：CAO Zu-gui ; GUO Zi-ru ; YAO Di ; GAO Yu-gang(School of Chemical Engineering ; Anhui University of Science and Technology ; Huainan Anhui 232001 ; China)
中文关键词：水下爆炸 ; 地震波 ; 频谱分析
英文关键词：underwater blast ; seismic waves ; spectrum analysis
出版日期：2010-12-15
机构：安徽理工大学化学工程学院;
年：2010
期：04
出版单位：安徽理工大学学报(自然科学版)

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.

引文

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