依据弹性波理论，在假定爆破前后岩体的密度、泊松比近似相等的条件 下，建立了声波的波降率（η）、岩体的完整性系数（Kv）以及弹性模量损 失系数（D）三者之间的关系，这为弹性模量损失系数（D）的测定或计算提 供了一种工程经验的途径。在上述关系式的基础上，以水电工程中边坡及基础 爆破开挖为实例，对所建立的关系式进行了损伤标准的应用性探讨，由此提出 了关于工程破坏损伤判据及可以接受的工程损伤判据概念。%According to theory of el astic wave and under the condition of assuring that the densities and poisson’s ratios of a rockmass bef ore and after blasting are approxi mately equal，a relationship betwee n the reduction ratio（η） of sound velocity，the coefficient （Kv） of r ockmass integrity and the loss coe fficient （D） of elastic modulus ha s been established.It can be used as an empiric way for the determin ation or calculation of D.Based on the above-mention relationship，the application of rockmass damage sta ndard is discussed through taking excavation blasting of the slope a nd basement in hydroelectric proje cts as an example.In view of the a bove，a concept on rockmass damage in blasting projects and the accep table damage criterion are proposed.
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