In this paper the application of high pressure water jet technology in coal mine main drainage pipeline is discussed briefly.
简要探讨了高压水射流清洗技术在煤矿主排水管道清洗中的应用。
Based on the peculiarity of deep exploiting in Xishimen Iron Mine, the principle and main affecting factors to select drainage scheme for deep exploiting are stated.
针对西石门铁矿深部开采的特点，论述了该矿山深部开采疏干方案选择的原则和主要影响因素。
Through calculation of concrete instance, it is clear that coal mine main drainage pipeline cleaning by high pressure water jet has remarkable economic benefits.
最后通过对具体实例的计算，说明了清洗煤矿主排水管道具有显著的经济效益。
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