爆破振动安全标准探讨
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摘要
探讨了爆破工程中的振动安全问题及安全范围的确定方法。通过运用结构动力学和结构抗震原理,针对我国现行(新的)爆破安全规程GB 6722—2003,根据既考虑爆破地震动峰值速度,又考虑地震动波频率,同时区分建筑结构形式和动力反应特性的原则,对结构爆破振动安全允许标准和安全允许距离进行了研究,指出了我国现行(新的)爆破安全规程GB 6722—2003的不足和存在的问题,并且探讨了爆破振动强度的控制和预报。
The vibration security issues and the methods of determining safety distance in blasting engineering projects were studied.Through applying structural dynamics and structural seismic principle,taking the peak velocity and the frequency of blasting-induced seismic wave into account,following the principle of discriminatively treating structural form and dynamic reaction characteristics,aiming at presently applied blasting safety regulation GB 6722—2003,the safety permission criteria and the safety distance of structural blasting vibration were investigated,the deficiency of regulation GB 6722—2003 was pointed out.Furthermore,the management and prediction of blasting-induced vibration strength were explored.
引文
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