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通过爆破块度与天然块度之间的关系，探讨节理岩体的宏观损伤演化。利用Ｌｅｍａｉｔｒｅ等效应变假设，分析细观损伤与宏观损伤的耦合损伤，为建立节理岩体在爆炸炸载荷作用下的损伤模型探索一条途径。
Through the relationship between blasting degree and natural degree, the macro damage evolution of jointed rock mass is discussed. Lemaitre equivalent strain assumption is used to analyze the coupling damage between meso-damage and macro-damage. This is a way to establish a damage model of rock mass under blast loading.