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This study aims to enhance subsidence prediction methods by investigating the influence of heterogeneously thickened hard rock strata.

Mechanisms of surface subsidence control by heterogeneously thickened hard rock strata and its predictive modeling

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Randomized trial demonstrates improved prediction of surface subsidence in coal mining, indicating significant ecological implications.

This study aims to enhance subsidence prediction methods by investigating the influence of heterogeneously thickened hard rock strata.
Developed a 3D surface subsidence prediction model using mechanical methods under HTHRS conditions.
Utilized multi-source on-site monitoring to study subsidence morphology.
Conducted engineering practice verification to compare with traditional methods.
HTHRS resulted in significant skewness in subsidence basin morphology, contradicting traditional assumptions about uniformity.
Thickness variation of hard rock strata correlated positively with subsidence boundary offsets and stress concentration.
The proposed model significantly improved prediction accuracy compared to traditional probability integral methods.

Cai et al. (2026) studied this question.

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