Design considerations for intersect method of HDD

Published in:
Trenchless Technology Magazine Horizontal Directional Drilling Guide, 2013

Abhinav Huli and Dennis Doherty, Haley & Aldrich

Unidirectional Horizontal Directional Drilling (HDD) has been the conventional method of practice for many decades. However, ever increasing project challenges demand innovative methods of pipe installation using HDD. One such method is the intersect method where a single alignment is achieved by drilling from both ends so as to connect the drills underground. In this article, Haley & Aldrich’s Abhinav Huli and Dennis Doherty explore design considerations for using the intersect method of HDD.

hdd-intersect-method (377 KB)