In engineering, after the construction of a breakwater on seabed, the weight of breakwater is initially transferred to the pore water
in seabed foundation, resulting in the generation of excess pore pressure and pressure gradient (Fig.
Although experimental studies allow the direct measurement of variables involved in the infiltration process (e.g., saturation, positive pore water
pressure, and suction) which can be related to the decrease of soil shear strength and slope failure, experimental tests have the disadvantage of being costly and time consuming.
The acute toxicity assays were performed using Ceriodaphnia silvestrii Daday, 1902 and Chironomus xanthus Rempel, 1939 for water samples (water column and sediment pore water
) and bulk sediment samples, respectively, before and after the application of nitrate, in an incubation period of 135 days.
"Everything may look clean but, if you look under the rugs, that's where you find most of the dirt." The potential impacts of pore water
contamination extend far beyond the river bottom, he explains, because "this is where the biological food chain begins, so any bioaccumulation of toxins will start here."
 studied the effect of pore water
and adsorbed moisture on the dielectric properties of Green River oil shale, they noted a regular decrease in the relative dielectric constant [epsilon]' and dielectric loss [epsilon]" with decreasing amount of adsorbed moisture and pore water
"The central thing is how pore water
pressure affects soil strength and how, in turn, evapotranspiration affects pore water
pressure,' says Glendinning.
This causes the leak of pore water
, and a loss of volume.
Depth to water level (DWL) from the ground surface between tussocks was measured (30 October 2007, 30 May and 30 July 2008), and the pore water
samples were taken (1 November 2007, 1 June 2008) from piezometers (PVC tubes with the inner diameter of 22 mm, perforated by 10 cm and inserted into the surface to a depth of 50 cm) close to each releve.
To describe the state of pore water
in concrete, one has to distinguish between three different states: (i) non-saturated concrete, (ii) saturated concrete and (iii) transition from non-saturated to saturated concrete.
The most likely origin for the basal low-friction zone is in a layer of clay sediment, overpressured by pore water
The thrust ridge is composed of lake sediments that were probably pushed up along a hinge-line created by the rotational collapse of an intact slab of limestone and/or pore water
pressure created by the collapse.
The device measures pore water
conducity (ECp)--the EC of the water that is available to the plant.