TY - GEN
T1 - Hydraulic conductivity evaluation of vertical barrier walls
AU - Daniel, David E.
AU - Choi, Hangseok
PY - 1999
Y1 - 1999
N2 - Vertical barrier walls are routinely used to contain contaminated groundwater and vapors around old landfills and remediation sites. Three methods are available for evaluating the hydraulic conductivity of vertical barriers: (1) laboratory tests on reconstituted samples; (2) laboratory tests on 'undisturbed' samples; and (3) in situ tests. Test procedures and relative advantages of each method are summarized. Typical test results are provided for three projects. Different methods for measuring hydraulic conductivity can produce hydraulic conductivity's that vary by orders of magnitude, and not always in the same direction on different projects. Numerical analyses were performed for in situ slug tests, and comparative results are presented to clarify the significance of critical variables for single-well borehole tests on vertical barrier walls.
AB - Vertical barrier walls are routinely used to contain contaminated groundwater and vapors around old landfills and remediation sites. Three methods are available for evaluating the hydraulic conductivity of vertical barriers: (1) laboratory tests on reconstituted samples; (2) laboratory tests on 'undisturbed' samples; and (3) in situ tests. Test procedures and relative advantages of each method are summarized. Typical test results are provided for three projects. Different methods for measuring hydraulic conductivity can produce hydraulic conductivity's that vary by orders of magnitude, and not always in the same direction on different projects. Numerical analyses were performed for in situ slug tests, and comparative results are presented to clarify the significance of critical variables for single-well borehole tests on vertical barrier walls.
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M3 - Conference contribution
AN - SCOPUS:0032654126
SN - 0784404348
T3 - Geotechnical Special Publication
SP - 140
EP - 161
BT - Geotechnical Special Publication
PB - ASCE
T2 - Proceedings of the 1999 3rd National Conference onGeo-Engineering for Underground Facilities
Y2 - 13 July 1999 through 17 July 1999
ER -