工程爆破

1999, (03) 71-75

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岩石爆破损伤模型及评述
REVIEW ON DAMAGE MODEL OF ROCK BLASTING

杨小林,王树仁
Yang Xiaolin Wang Shuren (China University of Mining and Technology(Beijing), Beijing 100083)

摘要(Abstract):

岩石爆破损伤模型是将岩石的动态断裂作为一个连续的损伤累积过程来处理,其基本点是建立损伤变量与岩石内微裂纹密度的关系,并预测在爆炸载荷作用下岩石的损伤和破坏过程。在分析研究现有岩石爆破损伤模型的基础上,对模型中损伤变量的定义及有效体积模量进行了评述,并指出了现有岩石爆破损伤模型存在的不足及发展方向
The damage model of rock blasting is a treatment of the dynamic rock fracture process under explosive loading as a continuous accumulated damage. Its essential feature is to establish the relationship between damage parameter and the microcrack density and to predict rock damage process under explosive loading. Based on analysis on the existing damage model of rock blasting, review on the definition of damage variables and the effective bulk modulus of a cracked solid in the model have been given. The deficiencies and the development trend of the existing model of rock blasting have been also pointed out.

关键词(KeyWords): 岩石爆破;损伤模型;评述
Rock blasting Damage model Review

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作者(Author): 杨小林,王树仁
Yang Xiaolin Wang Shuren (China University of Mining and Technology(Beijing), Beijing 100083)

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