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Horizontal Directional Drilling - plastic pipe

Horizontal Directional Drilling - plastic pipe

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of the pipe during pullback. Drilling muds are thixotropic and thus thicken when left undisturbed after pullback. However, unless cementitious agents are added, the thickened mud is no stiffer than very soft clay. Drilling mud provides little to no soil side-support for the pipe. Pullback

  Support, Pipe, Directional

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