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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)
Editor
Baosong Ma
Baosong Ma
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ISBN:
9780791802922
No. of Pages:
1760
Publisher:
ASME Press
Publication date:
2009

A simplified method has been developed to estimate the pull loads on polyethylene pipe installed by a mini (or midi) - HDD process. The method and associated formulae are based upon approximations to the equations and procedures provided in ASTM F 1962, Standard Guide for Use of Maxi-Horizontal Directional Drilling for Placement of Polyethylene Pipe or Conduit Under Obstacles, Including River Crossings. The objective is to provide a convenient means of identifying potentially problematic mini-HDD installations and∕or to aid in the pipe selection process, in contrast to the extensive planning or analytical investigations characteristic of typical maxi-HDD projects. The proposed mathematical model reflects the major route parameters (bore length, planned bends) and buoyant weight for an empty PE pipe, and also accounts for unplanned curvatures resulting from path corrections in a typical mini-HDD installation.

Abstract
Introduction
Description of ASTM F 1962
Simplification for Mini-HDD Applications
Implementation
Comparison to Field Data
Summary
References
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