Experimental Investigation on Failure Modes and Mechanical Properties of Rock-Like Specimens with a Grout-Infilled Flaw under Triaxial Compression

Joint Authors

Sun, Shaorui
Zhu, Feng
Le, Huilin
Fan, Haotian

Source

Shock and Vibration

Issue

Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2019-03-25

Country of Publication

Egypt

No. of Pages

14

Main Subjects

Civil Engineering

Abstract EN

Flaws existing in rock mass are one of the main factors resulting in the instability of rock mass.

Epoxy resin is often used to reinforce fractured rock mass.

However, few researches focused on mechanical properties of the specimens with a resin-infilled flaw under triaxial compression.

Therefore, in this research, epoxy resin was selected as the grouting material, and triaxial compression tests were conducted on the rock-like specimens with a grout-infilled flaw having different geometries.

This study draws some new conclusions.

The high confining pressure suppresses the generation of tensile cracks, and the failure mode changes from tensile-shear failure to shear failure as the confining pressure increases.

Grouting with epoxy resin leads to the improvement of peak strengths of the specimens under triaxial compression.

The reinforcement effect of epoxy resin is better for the specimens having a large flaw length and those under a relatively low confining pressure.

Grouting with epoxy resin reduces the internal friction angle of the samples but improves their cohesion.

This research may provide some useful insights for understanding the mechanical behaviors of grouted rock masses.

American Psychological Association (APA)

Le, Huilin& Sun, Shaorui& Zhu, Feng& Fan, Haotian. 2019. Experimental Investigation on Failure Modes and Mechanical Properties of Rock-Like Specimens with a Grout-Infilled Flaw under Triaxial Compression. Shock and Vibration،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1211274

Modern Language Association (MLA)

Le, Huilin…[et al.]. Experimental Investigation on Failure Modes and Mechanical Properties of Rock-Like Specimens with a Grout-Infilled Flaw under Triaxial Compression. Shock and Vibration No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1211274

American Medical Association (AMA)

Le, Huilin& Sun, Shaorui& Zhu, Feng& Fan, Haotian. Experimental Investigation on Failure Modes and Mechanical Properties of Rock-Like Specimens with a Grout-Infilled Flaw under Triaxial Compression. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1211274

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1211274