绳索取心用止水栓塞的研究与应用

Research and Application of Water Stopping Plug for Wire-line Coring

研究与应用了绳索取心专用钻孔压水试验止水栓塞,解决了水利水电工程勘探中应用绳索取心钻进后不提大钻进行钻孔压水试验的难题,提高了钻进效率。介绍了该绳索取心专用止水栓塞的材料、膨胀介质、结构设计及其应用情况。

The water stopping plug for wire-line coring is researched and applied to solve the difficult problem of water pres-sure test with no lifting of drill rod for wire-line core drilling wire-line core drilling in water conservancy and hydropower en-gineering exploration and improve the drilling efficiency.The paper introduces this special water stopping plug about its ma-terial, expansion medium, structure design and its application.