【摘要】 分析总结了目前国内外对于爆破振动频率的研究成果,提出了折合振动速度这一概念,主要探讨考虑频率因素影响条件的爆破振动计算公式。通过分析得到动态影响系数Bf,对根据萨式公式进行回归的经验公式进行修正,并结合工程实例验证。结果表明理论计算折合振速与实测折合振速相差率基本控制在10%以内。更多还原

【Abstract】 Based on the research of blasting vibration frequency home and abroad,the concept of equivalent vibration velocity was put forward and the calculation formula of blasting vibration considering the influence of frequency factor was discussed.The dynamic influence coefficient Bf was achieved based on analysis,and then the empirical formula was obtained with Sa-type regression formula which was corrected and verified in the practical engineering projects.Results show that the error rate of equivalent vibration velocity between theoretical values and practical values was controlled within about 10 percent.更多还原