保水采煤技术研究现状及发展趋势

摘要

实现保水采煤的目标是煤矿区生态环境发展的趋势和要求,为了系统归纳保水煤采技术的研究成果,促进保水采煤技术的发展,在查阅了近年来公开发表的文献资料的基础上,采用综合分析的方法,对目前保水采煤理论及开采技术研究现状进行全面总结和归纳,并指出了该领域的发展趋势.研究结果表明,实现保水采煤目标的核心是根据特定的水文地质条件选择合理的开采上限及适宜的开采方式控制生态水位.研究主采煤层覆岩结构空间组合特征,确定水、煤、岩等在三维空间内组合形态,在此基础上提高导水裂隙带发育高度预测精度,是保水采煤技术研究的趋势.%To achieve the aim that coal mining under water-preserving is the development trend and requirement of ecological environment in coal mine area,and systematically summarizing achievements in the technology of coal mining under water-preserving and further promoting its development,the theory of coal mining under water-preserving and research status of mining technology were summarized comprehensively using the method of comprehensive analysis,based on overviews the recent achievement and the latest development of coal mining under water-preserving.In addition,the development trend in this field was pointed out.The study results showed that the focus on achieving the goal of coal mining under water-preserving was selection of reasonable mining upper limit and the appropriate mining methods to control ecological water level based on specific hydro-geological conditions.The further study trend is to improve the prediction accuracy of development height of the fractured water-conducted zone by researching on spatial combination characteristics of overlying strata in main mining coal seam and conforming combination form of groundwater,coal,rock and so on in three dimensional spaces.