Open Access

ABSTRACT

Experimental Study on CT Micro Mechanics Characteristics of Soft Rock Creep under Gravity Disturbance Loads

by FU Zhiliang¹, GUO Hua², GAO Yanfa³

1 Corresponding author. E-mail: fuzhiliang2007@yahoo.com.cn. College of Energy Resources and Safety , Anhui University of Science and Technology Huainan, Anhui 232001 , China
2 Exploration & mining Center, Commonwealth Scientific and Industrial Research Organisation, Queensland 883, Australia
3 School of Mechanics &Civil Engineering, China University of Mining & Technology, Beijing, 100083, China

The International Conference on Computational & Experimental Engineering and Sciences 2008, 5(3), 145-156. https://doi.org/10.3970/icces.2008.005.145

Abstract

This paper is focused on the micro-damage evolution properties of gray green mudstone under impacting disturbance load conditions for the first time by using the real time CT testing technique. CT images and CT values for rock cross-sections under different impacting disturbance loading levels were obtained. The paper is also to describe process of rock creep damage under disturbance loads and to explore the mechanism of micro-damage. The results have shown that rock failure is easy to happen suddenly rock is in or close to limit strength neighborhood during the process of disturbance. This will further lay the theory basis for the prediction of roadways' service life and evaluation of geotechnical engineering stability.

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Keywords

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