Topic
Pore water pressure
About: Pore water pressure is a research topic. Over the lifetime, 11455 publications have been published within this topic receiving 247670 citations. The topic is also known as: pwp.
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TL;DR: In this article, the Coulomb-Mohr theory and the concept of effective stress were used to measure the strength of cylindrical samples in unconfined compression and by the indirect tensile strength test.
Abstract: SUMMARY
Pastes containing sand and 0, 5, 20 and 80 g kaolin kg−1 mixture were equilibrated at matric potentials of – 2, – 10, – 100 and – 1000 kN m−2 or allowed to air-dry. The strength of cylindrical samples was determined in unconfined compression and by the indirect tensile strength test. Measured strengths are explained using the Coulomb-Mohr theory and the concept of effective stress. At pore water tensions greater than 10 kN m−2 effective stress was the dominant factor in determining compressive and tensile strength. The contrast between this behaviour and that of friable topsoils is discussed.
116 citations
TL;DR: In this article, the isotopic composition of pore water ammonium and N org in the anoxic sediments of the Santa Barbara Basin and the Eastern Subtropical North Pacific (ESNP) region was analyzed.
116 citations
TL;DR: In this paper, the measurement of gauge pore water pressure lower than −100 kPa has been demonstrated, which is the first measurement of water pressure below −100kPa for matric suction.
Abstract: Recent advances in the technology for measuring matric suction have permitted the direct measurement of gauge pore water pressures lower than −100 kPa—that is, absolute tensions. This significant a...
115 citations
TL;DR: In this article, the authors monitored acoustic emission (AE) activity and brittle failure initiated by water injection into initially dry critically stressed cylindrical specimens of Flechtingen sandstone of 50mm diameter and 105-125mm length.
115 citations
TL;DR: In this article, the combined and synergistic effects of clay colloids and pore water velocity on virus transport and retention in porous media were examined at three pore-water velocities (0.38, 0.74, and 1.21 cm/min).
115 citations