A Water-Rock Coupled Model for Fault Water Inrush: A Case Study in Xiaochang Coal Mine, China
作者： Luyuan Wu , Haibo Bai , Chao Yuan , Guangming Wu , Changyu Xu
DOI: 10.1155/2019/9343917
关键词:
摘要: Water inrush disasters in mining frequently occur under the influence of confined water-bearing fault zones. Therefore, investigating water mechanism is necessary to reduce number occurrences this type disaster. In zones, rock highly fractured, and conduction complex. research, seepage fractured sandstone zones studied through experiments, results indicate that permeability coefficient depends on axial stress particle size. The relationship between was an exponential relationship. Then, a water-rock coupled model proposed based experimental results, which considers different flow patterns during disasters. Finally, numerical simulation combined with conducted investigate case study, reveal when mining, two types conditions are required. One connection among zone coal seam roof, fracture zone, aquifer fails, other prevention pillar, fails. This study contributes increased understanding design pillars.
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