Post-construction Evaluation of HDD Installations - Part 2

September 1, 2007
/ Print / Reprints /
/ Text Size+
There has been limited prior work performed in assessing the annular space region created during HDD installations. In one project, researchers performed testing on three 530-foot HDD installations of 12-inch diameter steel pipe to monitor changes in pore pressures before, during and after installation.
(and takes less than a minute)



Image Galleries

Groundwater Expo 2014

Members of the National Ground Water Association descended on Las Vegas for their annual Groundwater Expo in December 2014, and National Driller was there. It was a great opportunity to learn about new products and network with professionals in all facets of the industry. All photos by National Driller staff.

National Driller Magazine

National Driller December 2014 Cover

2014 December

In our December 2014 edition of National Driller, discover why drilling fluids and grouting have gotten better with time. Also, read why drillers have lots to consider when weighing rehab or replacement of a water well.

Table Of Contents Subscribe

Ear Protection

For December’s issue of National Driller, contributor Brock Yordy mentioned ear protection in his column about drilling innovations. How important is ear protection on your jobsite?
View Results Poll Archive

National Driller Store

M:\General Shared\__AEC Store Katie Z\AEC Store\Images\ND\new site\water-quality-eng.gif
Water Quality Engineering: Physical / Chemical Treatment Processes

By carefully explaining both the underlying theory and the underlying mathematics, this text enables readers to fully grasp the fundamentals of physical and chemical treatment processes for water and wastewater.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


Facebook Twitter  LinkedInYouTube logoGoogle +

National Driller Sourcebook

national driller sourcebook

The #1 buyer's reference for the drilling industry. CLICK HERE to view the directory.