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Improving characterization of fractured rock using 3D cross-borehole electrical resistivity tomography (ERT)

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TitleInfo
Title
Improving characterization of fractured rock using 3D cross-borehole electrical resistivity tomography (ERT)
Name (type = personal)
NamePart (type = family)
Robinson
NamePart (type = given)
Judith L.
NamePart (type = date)
1971-
DisplayForm
Judith L. Robinson
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Slater
NamePart (type = given)
Lee
DisplayForm
Lee Slater
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = personal)
NamePart (type = family)
Ntarlagiannis
NamePart (type = given)
Dimitrios
DisplayForm
Dimitrios Ntarlagiannis
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Keating
NamePart (type = given)
Kristina
DisplayForm
Kristina Keating
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Johnson
NamePart (type = given)
Timothy
DisplayForm
Timothy Johnson
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
Graduate School - Newark
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2015
DateOther (qualifier = exact); (type = degree)
2015-05
CopyrightDate (encoding = w3cdtf); (qualifier = exact)
2015
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
There is a growing need to understand the hydraulic properties of fractured rock for the development and extraction of natural resources and also to engineer remediation strategies at contaminated sites. The characterization of fractured rock is inherently complex due to the multifaceted interrelationships between stress, temperature, roughness and fracture geometry that affect hydraulic conductivity and flow paths that have hydraulic properties varying over orders of magnitude. Often, sparse data points are interpolated from borehole locations to infer the spatial distribution of flow and transport within fractures. However, these fracture distributions are often poorly resolved due to the heterogeneity of these networks between the borehole locations. Electrical resistivity tomography (ERT) is a viable technology to characterize fractured rock as the electrical pathways mimic hydraulic pathways in fractured rock, assuming surface conduction is small. Previous work using ERT in fractured rock gave limited hydrogeological information due to finite element modeling techniques which were not physically appropriate for fractured rock and lack of instrumentation to permit imaging of isolated fracture zones. Synthetic and field datasets were used to incorporate field information to yield an improved hydrogeological interpretation. Specifically, model constraints were incorporated in the inversion modeling and borehole deviations defining these boundaries were explicitly defined in the discretization. Where this information was incorporated, ERT time-lapse changes in conductivity were more focused surrounding fracture locations and borehole effects were minimized. A rigorous examination of localized effects of de-regularization was undertaken and it was found that uncertainty in these boundaries can lead to spurious inversion artifacts. Electrode arrays within seven boreholes were designed, which included isolation bladders and a water sample/injection line. This design facilitated multiple tracer tests in a fractured mudstone to be conducted. The spatial scale of this experiment was such that the primary hydrogeological heterogeneity controlling flow and transport was captured, providing unique information relative to that acquired from borehole logging methods alone. The modeling techniques and instrumentation advancements detailed in this dissertation demonstrates the potential of ERT at fractured rock sites to work towards creating comprehensive flow and transport models.
Subject (authority = RUETD)
Topic
Environmental Science
Subject (authority = ETD-LCSH)
Topic
Geophysics
Subject (authority = ETD-LCSH)
Topic
Rocks--Fracture
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_6206
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xvi, 146 p. : ill.)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = vita)
Includes vita
Note (type = statement of responsibility)
by Judith L. Robinson
RelatedItem (type = host)
TitleInfo
Title
Graduate School - Newark Electronic Theses and Dissertations
Identifier (type = local)
rucore10002600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/T3DF6T3V
Genre (authority = ExL-Esploro)
ETD doctoral
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Robinson
GivenName
Judith
MiddleName
L.
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2015-03-10 11:56:30
AssociatedEntity
Name
Judith Robinson
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - Newark
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical

RULTechMD (ID = TECHNICAL1)
ContentModel
ETD
OperatingSystem (VERSION = 5.1)
windows xp
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