Study on the Constitutive Model of Visco-Elasticity-Plasticity Considering the Rheology of Rock Mass

Li Wu; Qing Jun Zuo; Zhong Le Lu

doi:10.4028/www.scientific.net/AMR.639-640.567

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 639-640Study on the Constitutive Model of...

Study on the Constitutive Model of Visco-Elasticity-Plasticity Considering the Rheology of Rock Mass

Abstract:

Considering the rheological mechanical characteristics of rock mass, a viscous-plastic model of rock mass which can describe the acceleration creep stage of rock mass was proposed. Moreover, combining with viscous-elastic shearing rheological model of rock mass in series, a new constitutive model of visco-elasticity-plasticity considering the rheology was constructed. Due to the shearing rheological curves of granite, the model of visco-elasticity-plasticity considering the rheology was identified and the rheological parameters of the model were obtained. The comparison between the viscous-elastic-plastic rheological model of rock mass and experimental result of granite shows that the accelerating rheological properties of rock mass can be depicted effectively by the constitutive model of visco-elasticity-plasticity considering the rheology.

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Periodical:

Advanced Materials Research (Volumes 639-640)

Pages:

567-572

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.639-640.567

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Online since:

January 2013

Authors:

Li Wu, Qing Jun Zuo, Zhong Le Lu

Keywords:

Constitutive Model, Rheology, Visco-Elasticity-Plasticity

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