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Using helicopter electromagnetic surveys to identify potential hazards at coal waste impoundments

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Hammack, RW and Quaranta, JD and Kaminskiy, V and Warner, K and Harbert, W (2005) Using helicopter electromagnetic surveys to identify potential hazards at coal waste impoundments. Proceedings of the Symposium on the Application of Geophyics to Engineering and Environmental Problems, SAGEEP, 1. 306 - 314. ISSN 1554-8015

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Abstract

In July 2003, the National Technology Transfer Center contracted with Fugro Airborne Surveys to perform helicopter electromagnetic surveys of 14 coal waste impoundments in southern West Virginia. The purpose of these surveys was to detect conditions that may lead to impoundment failure either by structural failure of the embankment or by the flooding of adjacent or underlying mine works. Specifically, the surveys attempted to: 1) identify saturated zones within the coal waste, 2) delineate the paths of filtrate flow through the embankment and into adjacent strata or receiving streams, and 3) identify flooded mine workings underlying or adjacent to the waste impoundment. In-phase and quadrature data from the helicopter surveys were inverted using EM1DFM software to generate conductivity/depth images. Conductivity/depth images were then spatially linked to georeferenced air photos or topographic maps for interpretation. Preliminary analysis of the data indicates that helicopter electromagnetic surveys can provide a picture of the hydrologic conditions that exist within the impoundment. However, results from the helicopter electromagnetic surveys must be corroborated with data from other sources to accurately assess the potential for impoundment failure or the potential for filtrate from the impoundment to contaminate local streams and aquifers.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Hammack, RW
Quaranta, JD
Kaminskiy, V
Warner, K
Harbert, Wharbert@pitt.eduHARBERT
Date: 1 December 2005
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Proceedings of the Symposium on the Application of Geophyics to Engineering and Environmental Problems, SAGEEP
Volume: 1
Page Range: 306 - 314
Event Type: Conference
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Geology and Planetary Science
Refereed: Yes
ISBN: 9781622760664
ISSN: 1554-8015
Other ID: http://dx.doi.org/10.4133/1.2923475
Date Deposited: 25 Aug 2012 15:06
Last Modified: 02 Feb 2019 15:57
URI: http://d-scholarship.pitt.edu/id/eprint/13707

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