考虑节理裂隙尺寸与方位分布的岩石统计损伤本构模型研究

doi:10.13722/j.cnki.jrme.2016.0259

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Abstract To establish the relationship between macroscopic deformation and mesoscopic structure defects，a statistical damage constitutive model for rocks is derived，using damage mechanics theory together with fractal theory and statistical mesoscopic strength theory based on the Weibull distribution. In statistical constitutive modeling，the fractal distribution of fissure size and normal distribution of occurrence are considered， the damage evolution equation and evolution mode are put forward. Model parameters related to fissure size，fractal dimension，and occurrence are derived，also the physical significance and influencing factors are analyzed. The constitutive model is verified by triaxial experiments on rock specimens which are made of similar simulation materials，its rationality and deficiency are also discussed.

Key words： rock mechanics joint fissure damage fractal statistical strength constitutive model damage evolution

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	Articles by authors
	HUI Xin1
	2
	MA Fengshan1
	2
	XU Jiamo1
	2
	GUO Jie1
	2

Cite this article:

HUI Xin1,2,MA Fengshan1, et al. Study on statistical damage constitutive model for rocks considering length and occurrence distribution of joint fissures[J]. , 2017, 36(S1): 3233-3238.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0259 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS1/3233

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