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利用动态应力比 (DSR)对爆破地震的损害作用程度进行了评估与量化。DSR参数直接反映爆破地震对岩土结构设施的影响 ,具有可操作性强、直观性好等优点。通过对某露天矿边坡及临近河堤在爆破地震条件下的动态应力比评价 ,验证了DSR值与岩土介质损伤破坏的关系 ,为保护河堤的爆破设计提供数据基础。
The dynamic damage ratio (DSR) is used to evaluate and quantify the damage effect of blasting earthquake. The DSR parameters directly reflect the impact of blasting earthquakes on geotechnical structures and facilities, and have the advantages of strong operability and good visualization. By evaluating the dynamic stress ratio of an open pit slope and adjacent river embankment under blasting earthquake conditions, the relationship between DSR value and the damage of rock mass media is verified, which provides the data foundation for the protection of embankment blasting.