Masters Theses

Keywords and Phrases

Electrical resistivity tomography (ERT)

Abstract

"The Missouri Department of Transportation (MoDOT) plans to construct a new intersection between highway 60 and highway 65 to alleviate traffic congestion during peak flow periods. This construction site, which is referred to as the Route 60/65 study site in this thesis, is located on the southeastern side of Springfield, Greene County, Missouri. Bedrock in the study area (Burlington-Keokuk Limestone) is characterized by karstic features such as loosing streams, underground caves, and sinkholes. Prior to the commencement of construction, MoDOT conducted a study of the subsurface conditions in the Route 60/65 study site. The main objective was to identify features, such as air-filled voids and solution-widened joints, which could create the potential problems in terms of the immediate and long term serviceability of the intersection. Information about variable depth in bedrock also was required. Karst terrains are characterized by highly irregular subsurface conditions. Borehole control alone provides accurate data only at the sampling location, so control elsewhere has to be interpolated, which can result in erroneous assumptions. To overcome this problem, geophysical data can be acquired between boreholes. Implementing of engineering geophysics as an additional tool allows better resolution of the subsurface condition, when constrained with ground truth information. It also decreases the required number of boreholes and accordingly saves time and money for the site characterization part of the project. For this project, the Electrical Resistivity Tomography (ERT) method was employed. The Dipole-Dipole multi-electrode array was utilized because it generally provides the best resolution in areas with highly variable depth to bedrock."--Abstract, page iii.

Advisor(s)

Anderson, Neil L. (Neil Lennart), 1954-

Committee Member(s)

Rogers, J. David
Stephenson, Richard Wesley

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geological Engineering

Sponsor(s)

Missouri. Department of Transportation

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2008

Pagination

x, 68 pages

Geographic Coverage

Greene County (Mo.)
Springfield Region (Mo.)

Rights

© 2008 Iana Muchaidze, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Geology -- Missouri -- Greene County
Geology -- Missouri -- Springfield Region
Karst -- Missouri -- Greene County
Seismic tomography -- Missouri -- Green County

Thesis Number

T 9411

Print OCLC #

276934457

Electronic OCLC #

244444591

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