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阿拉斯加管道公司应用水平定向钻技术完成了管道拆迁工程。拆迁管段穿越苏西特纳河,给施工带来极大的挑战。施工定在冬季。先实施97/8in导向钻孔,然后进行28in和36in的扩孔,最后应用30in扩孔器对通道进行清扫。20in管道回拖在约8h内完成。管道迁建工程在规定的时间和成本预算内顺利完工。
The Alaska Pipeline Company completed the pipeline demolition project using horizontal directional drilling technology. Demolition of pipe through the Susitna River, to the construction of great challenges. Construction is scheduled for winter. The first 97 / 8in guided drilling, and then 28in and 36in reaming, and finally the 30in reamer to clean the channel. 20in pipe back to drag in about 8h to complete. Pipeline relocation project within the prescribed time and cost budget successfully completed.