Among the safety problems of coal mines the goaf water and gas outburst are main problems.
煤矿安全的突出问题之一是突水事故、瓦斯突出。
This paper also provided the experience in preventing the goaf water by adapting water detection and water release concentratedly, and by using sleeve to control water release.
采取掘进中集中探放水、利用套管控制放水量的方法有效消除了积水威胁，为防治老空积水提供了经验。
This paper analyzes the type of drawing off water in goaf, introduces the technology of it at different goaf, and provides the methods of solving the existing questions.
分析了采空区探放水的类型，并对不同情况下的采空区水探放技术进行了介绍，对存在的问题提出了解决方法。
The poor geological conditions that the tunnel confronts include high-pressure water, coal seam, goaf, gas, Karst and fault.
隧道穿越不良地质有：高压力水、煤层、采空区、瓦斯、岩溶、断层等。
The development and utilization of the goaf hydrops have practical significance for releasing the shortage of the water resources in North China.
开发利用采空区积水，对于缓解华北地区水资源紧缺的局面具有现实意义。
The determination of damage height of superincumbent stratum of goaf has immense meaning for safety and reasonable exploitation of coal seam under water body, building and railway.
确定采空区上覆岩层破坏高度，对“三下”煤层安全、高效开采具有重要意义。
The mining with filling in goaf provides advantages for the rational mining of coal under buildings, railroads and water bodies.
采空区充填开采为“三下”煤炭的合理开采创造了条件。
Except the higher content of the suspended substance in the goaf hydrops of coal mine, the other indexes of the goaf hydrops can satisfy both industrial and agricultural water consumption.
煤矿采空区积水除了悬浮物含量较高外，其他指标可以满足工农业用水。
The paper introduces some utilizations of mine goaf, such as, water filling, waste filling, rubbish filling, etc., which are Helpful to mine goaf treatment.
介绍了采空场的若干应用，包括水充填、尾砂充填、垃圾充填，对空场处理有借鉴意义。
This study provides a reference for safe utilizing the goaf site, protecting water resources in mining area and preventing deterioration of the ecological environment.
此研究对于如何安全利用采空区场地，保护矿区水资源、防止生态环境恶化有一定的参考价值。
This study provides a reference for safe utilizing the goaf site, protecting water resources in mining area and preventing deterioration of the ecological environment.
此研究对于如何安全利用采空区场地，保护矿区水资源、防止生态环境恶化有一定的参考价值。
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