Pore water gradients below microbial mat surface of Umm Alhool sabkha in Qatar

In order to observe the end of primary consolidation (EOP) of cohesive soils with and without subjecting to cyclic loading, reconstituted specimens of clayey soils at various Atterberg’s limits were used for oedometer test at different loading increments and undrained cyclic shear test followed by drainage with various cyclic shear directions and a wide range of shear strain amplitudes. The pore water pressure and settlement of the soils were measured with time and the time to EOP was then determined by different methods. It is shown from observed results that the time to EOP determined by 3-t method agrees well with the time required for full dissipation of the pore water pressure and being considerably larger than those determined by Log Time method. These observations were then further evaluated in connection with effects of the Atterberg’s limit and the cyclic loading history.

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Total mercury, methylmercury, methylmercury production potential, and ancillary streambed-sediment and pore-water data for selected streams in Oregon, Wisconsin, and Florida, 2003-04

Data Series ◽

10.3133/ds375 ◽

2008 ◽

Cited By ~ 8

Author(s):

Mark C. Marvin-DiPasquale ◽

Michelle A. Lutz ◽

David P. Krabbenhoft ◽

George R. Aiken ◽

William H. Orem ◽

...

Keyword(s):

Pore Water ◽

Total Mercury ◽

Production Potential ◽

Streambed Sediment ◽

Methylmercury Production

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Evaluation of pore-water samplers at a drainage ditch, Installation Restoration Site 4, Naval Air Station Corpus Christi, Corpus Christi, Texas, 2005–06

Scientific Investigations Report ◽

10.3133/sir20075154 ◽

2007 ◽

Author(s):

Don A. Vroblesky ◽

Clifton C. Casey

Keyword(s):

Pore Water ◽

Drainage Ditch ◽

Corpus Christi ◽

Restoration Site

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Pore-Water Quality in the Clay-Silt Confining Units of the Lower Miocene Kirkwood Formation and Hypothetical Effects on Water Quality in the Atlantic City 800-Foot Sand, Northeastern Cape May County, New Jersey, 2001

Scientific Investigations Report ◽

10.3133/sir20065134 ◽

2006 ◽

Cited By ~ 1

Author(s):

Zoltan Szabo ◽

Elizabeth A. Keller ◽

Rose M. Defawe

Keyword(s):

Water Quality ◽

New Jersey ◽

Pore Water ◽

Atlantic City ◽

Confining Units ◽

Lower Miocene

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Conjectures, Hypotheses, and Theories of Drumlin Formation (In memory of Stanislaw Baranowski)

Journal of Glaciology ◽

10.3189/s0022143000011552 ◽

1981 ◽

Vol 27 (97) ◽

pp. 503-505 ◽

Cited By ~ 1

Author(s):

Ian J. Smalley

Keyword(s):

Shear Strength ◽

Pore Water ◽

Stress Level ◽

Critical Stress ◽

Pore Water Pressure ◽

Water Pressure ◽

Glacial Till ◽

Forming Process ◽

Stress Levels

AbstractRecent investigations have shown that various factors may affect the shear strength of glacial till and that these factors may be involved in the drumlin-forming process. The presence of frozen till in the deforming zone, variation in pore-water pressure in the till, and the occurrence of random patches of dense stony-till texture have been considered. The occurrence of dense stony till may relate to the dilatancy hypothesis and can be considered a likely drumlin-forming factor within the region of critical stress levels. The up-glacier stress level now appears to be the more important, and to provide a sharper division between drumlin-forming and non-drumlin-forming conditions.

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