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A Constitutive Model for the Creep Behavior of Offwhite Marbles

Published online by Cambridge University Press:  03 June 2015

X. D. Song*
Affiliation:
College of Science, Yanshan University, Qinhuangdao 066004, China
J. H. Ren*
Affiliation:
College of Civil Engineering & Mechanics, Yanshan University, Qinhuangdao 066004, China
*
Corresponding author. URL:http://lxy.ysu.edu.cn/lxy/tec-detail.php?id=15&way=listEmail: [email protected]
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Abstract

This paper reports an improved constitutive model for the shear creep behavior of offwhite marbles which are selected from slope and underground cavern and contain green schist’s weak structural planes. The shear creep behavior of the samples is characterized using the rheological tests. Based on the experimental measurements on mechanical properties under different normal stress conditions, an improved model is proposed to analyze the experimental results. It is demonstrated from a further discussion that such model can reflect the non-linear creep characteristics of structural planes, and especially, it is suitable for description of the viscoelastic and viscoplastic deformation behavior of structural planes.

Type
Research Article
Copyright
Copyright © Global-Science Press 2012

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