Innovative computational model for optimal deep coal mining under large-scale crustal stress conditions.

ABSTRACT: Understanding and controlling the ground stress in deep coalfield mining is crucial for ensuring mine safety and efficiency. This study aims to address two unresolved scientific issues in ground stress research: the selection of optimal excavation plans and the large-scale rapid acquisition of ground stress data. A novel computational model is proposed for key rock layer control under different crustal stress conditions. The model considers the complexity and uncertainty of ground stress distribution by simplifying the key rock strata into a fixed-fixed beam model and calculating their safety through mechanical methods. Introducing an innovative approach for acquiring large-scale stress fields using GPS data. By inverting large-scale strain fields in the coalfield area, combined with World

SUBMITTER: Li S 

PROVIDER: S-EPMC11555305 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature