Another Direction

by Samuel T. Ariaratnam, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. and Envir. Engrg., Univ. of Alberta, Edmonton, AB, Canada,
Erez M. Allouche, Asst. Prof.; Dept. of Civ. and Envir. Engrg., Univ. of Western Ontario, London, ON,

Serial Information: Civil Engineering—ASCE, 2000, Vol. 70, Issue 7, Pg. 62-65

Document Type: Feature article


Soil and groundwater contamination continues to be a problem throughout the United States, and on-site remedies are often time-consuming and costly. When such contamination lies underneath structures or immovable geological formations, remediation becomes even more tricky. The solution may lie with horizontal wells installed beneath buildings or environmentally sensitive areas to reach contaminants inaccessible by vertical systems. Construction of such wells may be achieved using horizontal directional drilling (HDD), a remotely guided drilling technique that makes it possible to drill horizontal bore holes over long distances along straight or curved profiles and alignments.

Subject Headings: Drilling | Soil pollution | Groundwater pollution | Pollution | Pollutants | Mitigation and remediation | Geology

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