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W artykule podjęta została tematyka słabonośnych gruntów organicznych, gytii, zlokalizowanych głównie w dolinach jezior i rzek oraz stanowiących podłoże budowlane w aglomeracjach miejskich. Grunty te ze względu na dużą ściśliwość, małą wytrzymałość na ścinanie oraz trudną do oceny przepuszczalność w porównaniu z gruntami mineralnymi stwarzają problemy podczas projektowania posadowień konstrukcji inżynierskich...
The paper is referring to vertical and horizontal laboratory permeability measurements in soft organic soils. The estimation of anisotropic permeability in soft organic soils, as peats, requires to use a special apparatus and the knowledge of proper analysis of the test results. During loading the void ratio decreases substantially that causes the changeability of the permeability. The change of permeability...
The paper is referring to the geotechnical centrifuge modelling that is used to prove the gabion facing wall stability. The gabion reinforcement wall is 15.3 meters tall and 17 meters length. The centrifuge model was speed up to 50 g and 75 g, and hadn't failure. The test results show that the largest settlements under 75 g speed was about 2.25 meters vertically and mainly in the gabion wall and just...
Derivation of consolidation partial differential equation with non-linear flow characteristics is proposed. The non-linear flow characteristics are obtained from flow-pump test on organic soil and described with empirical relationship. Several reasons were crucial to perform tests on organic soil. Firstly organic soils are very compressible, so that results in high permeability changes. Even with...
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