Research Activities: 2012
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Non-invasive Imaging and Assessment of Active Karst Features in Proximity to Paved Roadways |
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| Status | Complete View Final Report: PDF |
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| Sequential Number | R350 | ||||
| Identification Number | 00042592 | ||||
| Matching Research Agency |
Geoengineers |
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| Principal Investigator |
Neil Anderson |
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| Student Involvement |
One Ph.D. candidate will use these data as part of his dissertation research into the utility of electrical resistivity tomography. |
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Project Objective |
In an effort to better understand and define the lateral and vertical extent of karstic voids that have developed immediately adjacent to DOT roadways in Springfield Missouri, MS&T will acquire electrical resistivity tomography data. ERT data will be acquired along traverses laid out in the DOT ROW. We will acquire geophysical data using a Supersting R8 resistivity unit. Resistivity probes will be placed on 2.5-foot centers. The subsurface will be imaged a depth of approximately 50-60 feet bgs. |
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Project Abstract |
In an effort to better understand and define the lateral and vertical extent of active karst features in immediate proximity to paved MoDOT roadways in Springfield Missouri, MS&T will acquire electrical resistivity tomography (ERT) data. The intent is to use this non-invasive technology to map the lateral and vertical extent of the active karst features so that appropriate mitigation plans can be developed. | ||||
Relationship to other Research/Projects |
Anderson routinely works with non-invasive imaging technologies in support of highway-related applications. |
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Transportation-Related Keywords |
Resistivity, tomography, voids, geophysics | ||||
Technology Transfer Activities |
Results will be presented at national conference and published. The deliverables will include an evaluation of the utility of the electrical resistivity tomography method for mapping shallow water-filled voids and a discussion of the degree of resolution provided by the tool. |
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Project Deliverables |
Maps and geologic cross-sections depicting the lateral and vertical extent of soil, rock and air-filled voids in proximity to the active karst features. | ||||
Anticipated Benefits |
If MS&T is successful, we will demonstrate that the electrical resistivity tomography tool can be used to reliably image small air-filled karstic voids at depths on the order of less than 60 ft. The results of this research will be presented at major conferences and as peer-reviewed journals articles. |
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Milestones |
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