Laying buried pipes without trench digging, pulled through channels formed by horizontal directional drilling, the pipes are vibrated as they are pulled to avoid damage and allow large pipes to be laid

摘要

To lay buried pipes without digging trenches, pulled through channels formed by horizontal directional drilling, the pipes to be pulled through are subjected to oscillations by vibration. The applied energy is controlled, is applied to the pipe at one or more points as a function of the pipe quality and dimensions, matched to the composition of the ground around the buried pipe.