我国矿井断层防水煤(岩)柱留设研究现状与展望

我国煤矿底板突水事故中断层水害占绝大部分,断层防水煤(岩)柱留设是预防断层水害的主要手段,关系到煤矿的安全、高效生产。留设合理的断层防水煤(岩)柱宽度不仅可以防止地下水通过断层涌入矿井,还可以服务煤炭资源的合理、安全开采。断层防水煤(岩)柱宽度留设涉及到许多因素,也是许多学者和工程技术人员研究的重点之一。截止到目前已有多种研究方法与手段得到了应用,主要包括理论计算、多元回归分析、BP和RBF、相似模拟、数值模拟等,针对不同断层条件下的煤(岩)柱留设问题进行了具体研究。在此基础上对断层煤(岩)柱留设研究现状进行总结,指出其存在的问题并展望了今后研究的技术与方法及发展前景。

Research Status and Prospect of Fault Waterproof Coal(Rock) Column Design in China

The fault water damage accounts for most of the coal mine floor water inrush accidents in China, and the pillar design of fault waterproof coal(rock) is the main means to prevent fault water damage, which is related to the safety and efficient production of coal mine. The reasonable width of fault waterproof coal(rock) column can not only prevent the underground water from pouring into the mine through the fault, but also serve the reasonable and safe mining of coal resources. The design of fault waterproof coal(rock) column width involves many factors and is one of the focuses of many scholars and engineers. A variety of research methods have been applied at present, including theoretical calculation, multiple regression analysis, BP and RBF,similarity simulation, numerical simulation for the coal(rock) column design under different fault conditions have been specifically studied. On this basis, the research status of fault coal(rock) pillar is summarized, the existing problems are pointed out, and the future research technology and methods are prospected.