煤矿地下水库技术原创试验平台体系研制及应用

Original experimental platform system and application of underground coal mine reservoirs

煤炭是我国主体能源,西部是我国煤炭主产区,矿井水保护利用是煤炭开发面临的重大技术难题。国家能源集团煤炭绿色开采技术研发团队经过20多年持续技术攻关,首创了煤矿地下水库技术,在西部神东矿区推广应用,为矿区开发提供了95%以上用水,确保了矿区可持续开发。为进一步丰富完善煤矿地下水库理论和技术体系,在西部煤炭主产区不同地质和工况条件下推广应用该技术,保障国家能源安全和水资源安全,研发团队构建了煤矿地下水库原创技术试验平台体系,包括煤炭开采地下水运移与保护综合智能试验平台、多煤层开采煤矿地下水库模拟试验平台、煤矿地下水库坝体结构试验平台、西部深部井工矿井筒施工模拟试验台、地下水库水岩耦合机理试验、水处理工艺集成试验平台、煤矿地下水库冲击试验平台等,能够开展西部矿区不同煤层赋存条件下地下水运移规律、坝体结构参数优化、水库安全稳定性、水岩耦合作用机理、矿井水处理工艺参数优化、垮落岩体垮落冲击对坝体影响等研究,为煤矿地下水库建设、运行和安全提供理论支撑和技术验证。利用上述试验平台,开展了多煤层开采煤矿地下水库稳定性及渗流规律模拟、煤矿地下水库坝体结构安全、煤矿地下水库水岩耦合机理等多项试验研究,相关研究成果已应用于现场工程实践,确保了煤矿地下水库安全稳定运行。

Coal is the main energy source in China,and the western region in China is the main coal production area.The protection and utilization of coal mine water is the major technical challenge in the coal mining.The coal green mining research team of China Energy Group has pioneered the technology of underground coal mine reservoirs,which has been widely implemented in the Shendong mining area in Western China,providing over 95%of water needed for mining and ensuring the sustainable development of the mining area.To further enrich and improve the theoretical and technical system of underground coal mine reservoirs,this technology has been promoted and applied under different geological and working conditions in the western coal mining areas to ensure national energy security and water resources protection.The research team has built the original technology experimental platform system for coal mine underground reservoirs,including the comprehensive intelligent experimental platform for underground water transport and protection,the physical modelling platform for coal mine underground reservoirs under multiple coal seams,the dam structure experimental platform for coal mine underground reservoirs,the simulation experimental platform for deep well construction in western areas,the water-rock coupling mechanism experimental platform for underground water reservoirs,the integrated water treatment process experimental platform,and the impact experimental platforms for coal mine underground reservoirs,etc.On these platforms,the researches can be carried out consisting of the transport law of underground water,the optimization of dam structure parameters,the safety and stability of reservoirs,water-rock coupling mechanism,the optimization of mine water treatment,and the impact of caving rock mass on the dam structure under different coal seam occurrence conditions in the western mining areas of China.These platform systems provide a theoretical support and technical verification for the construction,operation,and safety of coal mine underground reservoirs.By utilizing these experimental platforms,various experimental research studies have been conducted,including the stability and seepage of coal mine underground reservoirs under multiple coal seams,the structural safety of coal mine underground reservoirs dam,and the waterrock coupling mechanism of coal mine underground reservoirs.These research results have been applied in actual engineering practice to ensure the safe and stable operation of coal mine underground reservoirs.