Detailed Hydraulic Assessment Using a High-Resolution Piezocone Coupled to the GeoVis
Abstract
The objective of this effort was to conduct a full-scale demonstration of the use of the high-resolution piezocone and GeoVIS to determine direction and rate of ground water flow in three dimensions. The following items were demonstrated: 1) Use of the high-resolution piezocone for determining soil type, head values, and hydraulic conductivity as a function of depth; 2) Use of the GeoVIS for determining effective porosity in aquifers; 3) How field parameters can be readily integrated into transport models and three-dimensional distributions of seepage velocity and contaminant flux. While the GeoVIS did not provide effective porosity values within the anticipated range, the high-resolution piezocone and resulting models fall within the quantitative tolerances set forth in this demonstration. Therefore, the sensor probe approach to determining hydrogeologic characteristics is deemed appropriate for the demonstration site characteristics. When compared to conventional approaches comprised of clustered well installations, aquifer tests, sample analyses, and three-dimensional and cross-sectional interpolations, cost savings for flux distribution determination using the high-resolution piezocone coupled with a membrane interface probe system exceeds 60 percent.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2008
- Accession Number
- ADA631392
Entities
People
- Amvrossios Bagtzoglou
- Daniel Eng
- Gary Robbins
- Jessica Chau
- Mark Kram
- Norm Jones
Organizations
- Naval Facilities Engineering Systems Command