Published in Tunnels & Tunnelling: Rules of Thumb – Horizontal Directional Drilling

September 10, 2019 Keivan Rafie

As innovations evolve, so to will the uses and applications of HDD—here’s a look at the how-to’s, whys, limitations and risks in this growing field

 

In his popular column—Rules of Thumb—Keivan Rafie explores what is good practice in the field of Horizontal Directional Drilling. This article also includes a Q&A with Ali Asadi from Concordia University’s Department of Building, Civil and Environmental Engineering. 

About the Author

Keivan Rafie

Keivan Rafie’s engineering expertise is in tunneling, mining, and ground-improvement projects. For the last 15 years, he’s worked across the globe in Asia, Australia, the Middle East, and North America. Keivan’s knowledge and experience go deep with tunneling methods, such as drill and blast, NATM, and TBM, and he is involved in all stages from design to manufacturing and construction.

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