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This research aims to explore the instability mechanisms and factors affecting coal-rock structures in deep strata.

February 5, 2026LithosphereOpen Access

Numerical Research on the Instability Mechanism and Influencing Factors of Coal-Rock Structures

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Numerical research investigates instability factors in coal-rock structures, indicating implications for coal pillar protection.

This research aims to explore the instability mechanisms and factors affecting coal-rock structures in deep strata.
Developed a mathematical model using singular point catastrophe theory.
Integrated the sharp corner mutation model for failure criterion formulation.
Analyzed the gradual failure process of coal-rock composite structures.
Strength of coal significantly impacts the peak instability strength of the composite structure.
Rock strength has a minor effect on the instability strength.
Decrease in rock thickness leads to fewer fractures, primarily on the coal-rock contact surface.

Liang et al. (2026) studied this question.

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February 5, 2026LithosphereOpen Access

View Full Paper

Ask AI

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Authors

Numerical research investigates instability factors in coal-rock structures, indicating implications for coal pillar protection.

This research aims to explore the instability mechanisms and factors affecting coal-rock structures in deep strata.
Developed a mathematical model using singular point catastrophe theory.
Integrated the sharp corner mutation model for failure criterion formulation.
Analyzed the gradual failure process of coal-rock composite structures.
Strength of coal significantly impacts the peak instability strength of the composite structure.
Rock strength has a minor effect on the instability strength.
Decrease in rock thickness leads to fewer fractures, primarily on the coal-rock contact surface.

Liang et al. (2026) studied this question.

View Full Paper

Ask AI

Bookmark