What type of study is this?

This is a Quantitative Study study.

What question did this study set out to answer?

To investigate the effects of water pressure on the mechanical properties and degradation mechanisms of coal under immersion conditions.

December 12, 2025PLoS ONEOpen Access

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This study reveals water pressure decreases elastic modulus and alters failure modes in coal, implying implications for mine stability.

To investigate the effects of water pressure on the mechanical properties and degradation mechanisms of coal under immersion conditions.
Conducted uniaxial compression tests on water-saturated coal samples.
Analyzed mechanical behavior of coal under varying water pressures.
Utilized a self-developed pressurized water soaking system.
Strength and elastic modulus of coal decrease with increasing immersion pressure.
Multiple deformation localization zones develop during loading.
Failure mode shifts from tensile dominant to tensile shear composite as pressure rises.

Zhu et al. (2025) studied this question.

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