Water enrichment properties of weathered bedrock in Hongliulin Coal Mine
The Jurassic weathered bedrock in the northwest region has the characteristics of loose structure,large porosity,strong permeability and fracture development,so it is a natural aquifer and one of the main sources of water inrush disasters in coal mines in the region.To scientifically and accurately divide the weathered bedrock area,and analyze and study the water occurrence in the weathered area is of great significance for the prevention and control of mine water.NEMV technolo-gy,with its unique ability to detect the characteristics of stratigraphic stress change attributes,can accurately depicts the dis-tribution characteristics of weathered bedrock in the south wing of the Beierpan area of Hongliulin coal mine.Combined with the study of regional aqueous distribution,the relationship between weathered bedrock and water enrichment is explored.The results show that the weathered bedrock is mainly distributed in the central,southwest and northeast directions,among which the northeast is the thinnest with the smallest area and serious weathering;the southwest is the thickest,the central area is the largest,its distribution range is closely related to water richness.Our study provides a scientific basis for the excavation safety of the Beierpan project.
国家科技期刊平台
NSTL
万方数据
维普
