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HDD Tracking and SurveyingHDD Tracking and Surveying CHAPTER CONTENTSHDD TrackingOne of the primary areas for technological advancement in HDD technology is in location and guidance systems. Having the technology and skill to locate the drill head is vital to the success of any HDD crossing. When HDD technology was first used for utility …
David Willoughby: Horizontal Directional Drilling: Utility and Pipeline Applications. HDD Tracking and Surveying, Chapter (McGraw-Hill Professional, 2005), AccessEngineering