【摘要】 爆破理论与工程实践业已证明，距爆破中心由近至远，爆破地震波强度由强到弱，而它的衰减程度由快到慢。据此变化规律，就不能象往常那样笼统地将与振速有关的计算系数Ｋ、ａ的综合值用于爆破振动速度计算，而应根据距爆破中心远近不同地点选取符合实情的Ｋ、ａ值计算振速，然后对不同地点的建筑物采取相应的加固措施，避免不必要的损失或浪费。更多还原

【Abstract】 The blasting theory and engineering practice proved that the strength andattenuation of blasting seismic wave vary from strong to weak and from quick to slow re- spectively,in accordance with from close to far away from the blasting centre. As viewedfrom this variation regularity,the combined value of calcuiation factors K and a related tovibration velocity can not be used,as usually,for calculating the blasting vibration velocitygenerally. The calculation of vibration velocity,therefore,should be conducted by selectingvalued K and a conformable to the real situation from the locations at different distancesaway from the blasting centre , then some relative consolidation measures are taken forbuildings at different locations to avoid a unnecessary loss or waste.更多还原