工程爆破

1996, (03)

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岩体爆破破碎的分形损伤模型
FRACTAL DAMAGE MODEL FOR THE ROCK FRAGMENTATION BY BLASTING

刘慧,王中黔,王文龙
Liu Hui;Wang Zhongqian(China Academy of Railway Science,Beijing 100081)Wang Wenlong(China University of Mining Technology,Jiangsu 221008)

摘要(Abstract):

本文提出了一个岩体爆破破碎的分形损伤模型,认为岩体爆破破碎的过程是岩体内原有裂隙发育和损伤增长的过程,且在此过程中,裂隙发育和损伤积累都具有分形特征。在此模型的基础上编制的计算模拟程序可对岩体内的三维损伤分布进行计算,并可对爆破漏斗进行模拟。现场试验与模拟结果吻合很好,说明了该模型的合理性。
The paper presents a fractional damage model for the rock fragmentation by blasting,which argues that the process of rock fragmentation is the one of increasing damage and inherent fracture in rock with fractional character.A computer program based on the model has been composed,which can successfully simulate the blasting crater and figure the distribution of damage in rock.The good agreement of simulating results with site tests shows that the model is rational.

关键词(KeyWords): 爆破,分形,损伤模型
Blasting Fractal Damage model

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作者(Authors): 刘慧,王中黔,王文龙
Liu Hui;Wang Zhongqian(China Academy of Railway Science,Beijing 100081)Wang Wenlong(China University of Mining Technology,Jiangsu 221008)

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