Engineering guidance on Horizontal Directional Drilling and open-cut pipeline construction — written by the team behind the Pipeline Planning Toolbox.
An engineering overview of Horizontal Directional Drilling (HDD): how the pilot bore, reaming, and pullback phases work, where the method excels, and its practical limitations.
How to lay out an HDD bore profile that can actually be drilled and pulled: entry and exit angle ranges, minimum bend radius rules, depth of cover selection, and tangent placement.
A breakdown of the forces acting on a pipeline during HDD pullback — friction, fluidic drag, capstan effect, and buoyancy — and the PRCI and ASTM F1962 calculation methods.