The integrity coefficient Kv of bed rock is one of the important approaches to evaluate the stability of engineering rock mass, but this parameter is difficult in frequent field tests. The integrity coefficient is the quantitative index for evaluating the complete deformation of rock mass, while the damage variable represents the level of damage of the jointed rock mass, and both have similar physical meanings and represent the degree of deterioration of surrounding rock. Damage variables and damage constitutive models were constructed based on Weibull distribution damage model and Synthetic Rock Mass (SRM) model. The relationship between damage variables and numerical calculation and damage constitutive curves of different weathered granite rocks in Hongtuzhang tunnel was calculated. A new method for evaluating integrity coefficient of rock mass is proposed.
Damage Evolution and Integrity Assessment of Jointed Rock Mass Based on Synthetic Rock Mass Approach
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 27 , 5 ; 2235-2247
2023-05-01
13 pages
Article (Journal)
Electronic Resource
English
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