Stress Characteristics near Main Geological Structures in Underground Coal Mines
Taking Xiaozhuang Coal Mine as an example,the stress characteristics near the main geological structures such as anticlines and faults underground were deeply explored.Xiaozhuang Coal Mine is located in the central part of the Binchang mining area,where the geological structure is complex.Through analysis of the geology of the anticline and faults,it is found that the existence of the anticline has led to significant stress concentration near the fold core,especially in the top and transition zones of the anticline,where the vertical stress value is about 15%higher than the average stress value in the distant anticline area.In addition,the south and north wings of the anticline have different inclinations,resulting in asymmetric stress distribution.The stress measurement in the fault zone also showed a similar phenomenon of high stress concentration,especially on both sides of the fault,with stress values more than 20%higher than the surrounding area.By comparing theoretical predictions with actual stress measurements,the accuracy of the geostress model and its limitations in practical geological engineering were verified.This not only deepens the understanding of the distribution characteristics of geostress in mining areas,but also provides a scientific basis for geological disaster prevention and control in coal mine safety production.
geological structureanticlines and faultsstress characteristicsdisaster prevention
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