深孔爆破振动测试分析与降振措施

西大洋水库石方开挖工程中采用了深孔爆破施工方案,因爆源距民房和水库大坝较近,为了确保安全、减少民扰及确定最大单响药量,降低爆破振动,研究影响爆破振动的因素,对该工程前期爆破进行了爆破振动监测。通过对实测数据的回归分析,得出了适用于该工程的爆破地震波传播经验公式,并分析了爆破振动产生的原因、爆破地震波的特征及传播规律和影响地震波传播的因素,为该工程预测生产爆破地震强度和采取降振、减振措施提供了理论依据,并提出了具体的降振措施。

Deep-hole Blasting Vibration and Drop Shock Test and Analysis of Measures

Deep hole blasting method is employed in the construction of Xidayang reservoir,the blasting source is close to the pfivme residence and reservoir dam.To guarantee safety,reduce the disturbance to residents,ascertain the maximum explosire amount per delay,reduce the blasting vibration,study the intluenee flactors of blasting vibration.blasting vibration monitoring was carried during earlier period blasting construction of the projeet,the empirical formula of blasting seismic wave propagation was obtained for the proiect,then the reason of blasting vibration,the characteristic and propagation law of blasting seismic wave and the influence factors on blasting vibration were analyzed,which provides the basis for forecasting the intensity of blasting vibration and selecting vibration absorption method.