Mapping & Analysis Of Roof Stress Distribution In An Underground Coal Mine Using FLAC 3D Software

Abstract

This study focuses on mapping and analyzing roof stress distribution in an underground coal mine using FLAC3D, aiming to enhance mine safety and efficiency. A systematic methodology was employed, including data collection from 63 boreholes, solid modeling using SURPAC, and numerical stress analysis through FLAC3D. Key objectives included evaluating distributed loads, analyzing the impact of geological disturbances, and comparing pre- and post-development stress behaviors. Results reveal that geological disturbances significantly influence stress distribution, identifying high-risk zones requiring enhanced support systems. Pre- and post-development scenarios showcased distinct stress patterns, emphasizing the dynamic behavior of roof strata. Additionally, differences in weak and strong geological sections were mapped, guiding optimized support designs. This research contributes to improved mine planning, risk mitigation, and the advancement of numerical modeling techniques for underground mining operations.