The Experimental Investigation on the Propagation Process of Crack for Brittle Rock Similar Material

A model experiment about brittle rock materials is performed in the paper. At first, the similar theory about model experiment is introduced, then the adoption of materials, experimental methodology and procedure are depicted, finally the experimental results and discussions about rock similar mater...

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Bibliographic Details
Published in:Geotechnical and geological engineering 2019-12, Vol.37 (6), p.4731-4740
Main Authors: Gu, X. B., Wu, Q. H., Zhu, Y. H.
Format: Article
Language:English
Subjects:
Brittleness
Cement
Civil Engineering
Concrete
Crack initiation
Crack propagation
Cracks
Earth and Environmental Science
Earth Sciences
Experimental methods
Experiments
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Mechanical properties
Original Paper
Rocks
Stress propagation
Terrestrial Pollution
Waste Management/Waste Technology
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Summary:A model experiment about brittle rock materials is performed in the paper. At first, the similar theory about model experiment is introduced, then the adoption of materials, experimental methodology and procedure are depicted, finally the experimental results and discussions about rock similar materials are obtained. The final conclusions are drawn that the cement content in the rock similar materials has great influence on the propagation of cracks and their mechanical characteristics. The brittleness, initiation stress, the maximum stress of rock similar materials increase gradually as cement content increases, and the vertical displacement, peak strain and connection stress decreases gradually. The existence of cracks reduces the peak strength of samples seriously. The great instructive significance in this experiment will be provided for future experimental investigation about rock similar materials.
ISSN:0960-3182
1573-1529
DOI:10.1007/s10706-019-00934-w