爆破地震振动速度与爆破中心距离的关系研究

众所周知，工程爆破常在附近引起地震灾害，某一点地震灾害的大小取决于该点地层的地震振动速度。质点的爆破地震振动速度又与所采用的爆破方法、炸药的种类、总装药量（或微差爆破中最大一段装药量）、地质条件（地层种类、地质构造、节理裂隙发育程度和岩层风化程度等）和地形地貌条件等有关。因此，推测一次爆破是否会对附近建筑物、构筑物或岩土边坡构成危害是相当复杂的，有时甚至是不可能的。作者根据几次石灰岩岩层中的深孔爆破所测得的数据进行回归分析，建立了一元线性回归方程和一元非线性回归方程，用以近似地推测石灰岩地层一定炸药量的工程爆破中，在距爆破中心Ｒ处引起的地震振动速度Ｖ。

THE STUDY OF THE RELATION BETWEEN VIBRATION VELOCITY OF EXPLODING EARTH QUAKE TO DISTANCE FROM EXPLODING CENTER

As is known to all, engineering explosion always causes earthquake calamity .How serous the calamity is depends on vibration velocity of exploding earthquake in stratum.The vibration velocity relates to exploding method,the kind of explosives,total quantity of explosives,geologic condition (the kind of stratum, geological structure,joint,crack and weathering extend)and topographic condition,etc.Therefor it is difficult to infer whether an explosion is harmful to buildings,structures and rocks or soil slopes or not,sometimes impossible.The authors analyzed some data attained from site measurement of several explosions in limestone stratum,and formed linear and non-linear regression equations.Before exploding with some quantity of explosives in limestone stratum,one can attain the approximate vibration velocity V of exploding earthquake on the place R meters long from the exploding center from the equations.