What question did this study set out to answer?

This research aims to evaluate how varying joint angles affect the instability and failure characteristics of jointed rock-like materials under unilateral confined compression.

July 14, 2026Scientific ReportsOpen Access

AE responses, energy evolution, and damage constitutive model of jointed rock-like material subjected to unilaterally confined compression

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Authors

SGShuo GaoChina University of Mining and Technology KLKe LiNanjing Tech University CHChangfu HuangChinese Academy of Social Sciences

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Implication

Randomized trial investigates joint angle effects on rock material failure, suggesting significant implications for tunnel stability.

Key Points

This research aims to evaluate how varying joint angles affect the instability and failure characteristics of jointed rock-like materials under unilateral confined compression.
Conducted unilateral confined compression tests using a custom L-shaped mold.
Fabricated jointed specimens with 3D printing technology at different joint angles.
Examined mechanical response, acoustic emission characteristics, energy evolution, and damage behavior.
Maximum compressive strength achieved at a joint angle of 90°; highest failure at 30°.
Increased AE activity and declining dynamic b-values observed with stress reduction.
Elastic energy storage capacity increases with joint angle, aligning theoretical predictions closely with experimental results.

Cite This Study

Gao et al. (2026) studied this question.

synapsesocial.com/papers/6a55d16e5aafca87247f8687 https://doi.org/10.1038/s41598-026-61735-9

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AE responses, energy evolution, and damage constitutive model of jointed rock-like material subjected to unilaterally confined compression

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Cite This Study

AE responses, energy evolution, and damage constitutive model of jointed rock-like material subjected to unilaterally confined compression

Discussion

Member takes

Implication

Key Points

Cite This Study

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