【摘要】 为研究爆破荷载作用下岩石高边坡的动力特性,根据岩石边坡开挖爆破振动监测数据,应用小波包理论分析了爆破地震波沿岩石边坡传播过程中的频谱及能量变化规律。得出了爆破地震波沿岩石边坡传播过程中频谱特性、主振频率和能量随距离变化规律、不同频带上的振动速度峰值和能量变化规律。研究成果对进一步研究岩石高边坡的动力稳定性具有重要意义。更多还原

【Abstract】 On the basis of the vibration monitoring data,the dynamic characteristic of the high rock slope under blasting loads was researched.The wavelet packet theory was applied to analyze the spectrum and energy transformation law of the quake wave caused by blasting spreading along the rock slope.The frequency spectrum feature,main vibration frequency and energy distribution according to the distance,peak particle velocity in different spectrum-band,and energy distribution law in the spreading of the blasting quake wave along the rock slope were concluded.The conclusions are very significant for the further study on the dynamic stability of the high rock slope.更多还原