Strength Characteristic of Ordovician Limestone under Unloading Condition

Xiang Min Cheng; Yu Chun Yang; Guo Bin Zhao; Zhi Yong Qu; Shu Wen Chen

doi:10.4028/www.scientific.net/AMM.488-489.329

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 488-489Strength Characteristic of Ordovician Limestone...

Strength Characteristic of Ordovician Limestone under Unloading Condition

Abstract:

The Strength characteristic of rock are different from them under unloading condition. The Strength characteristic of Ordovician limestone under loading and unloading condition of high compress which were taken from North Tian Mountain. It indicated that : Under unloading condition cohesion c and inner friction angle decrease according to loading condition, and the residual strength has more decrease than peak strength. Under unloading, peak compress strength and residual compress strength decrease distinctly, and the decrease reduces along with confining compress increasing.

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Periodical:

Applied Mechanics and Materials (Volumes 488-489)

Pages:

329-332

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.488-489.329

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Online since:

January 2014

Authors:

Xiang Min Cheng*, Yu Chun Yang, Guo Bin Zhao, Zhi Yong Qu, Shu Wen Chen

Keywords:

Ordovician Limestone, Strain, Strength Characteristic, Stress, Unloading Test

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