介绍了积水区探放水设计的主要内容，讨论了下煤层开采的基本方法，提出了几点重要的安全措施。
The main contents of the water prospection and dewatering design is presented. The mining method for down? Coal? Seam is discussed. Some safety measures are put forward.
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 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.
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。
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。
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.
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