由量纲和谐原理看爆破地震安全距离K系数取值的合理性

By Principle of Dimensional Homogeneity to Determine the Reasonable Safe Range with Safety Factor K from Seism Induced by Explosion

本文根据量纲分析原理,结合科研试验和工程实测资料分析工程爆破引起的岩层或土体震动的地面衰减规律,通过对较典型且可比性好的八种情况下爆破实测的地面震动衰减规律进行比较分析,对一般工程取用国家标准安全震速中K系数的主要影响因素进行定性定量的初步分析,并提出经验估算每次(或每段)起爆的安全炸药量的建议方法。

Based on the principle of dimensional homogeneity and in combination with the researching tests, as well as the observed data, this article makes analysis on the damping behavior of the seismic ground surface composed of rock layer or soi body, in which the vibration is induced by explosive engineering. Analysis on eight typical examples with well comparability have been carried out for deter l ming the seismic effects on the safety factor K both in quality and in quantity according to the national standard.The author gives out an empirical evaluation on the amount of explosive charge to be used each time (or in each area).