Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Study of Consolidation Tests on Dredged Soils with a Large Moisture Content in Coastal Louisiana Using a Modified Odometer
This paper reports a comparative study of the consolidation behavior of dredged soils by using a standard conventional odometer and a modified conventional odometer. A series of tests were carried out on the dredged soil samples from the Louisiana coastal area. Dredged soils are soft and highly moisturized, and thus form a large strain consolidation settlement. For this reason, the seating load, which is the initially applied load at the consolidation test, is an essential factor for the consolidation test of slurry-type dredged soils. The conventional odometer comes up with a large seating pressure of 0.01 TSF (1 TSF = 107.25 kPa), which would squeeze part of the soft slurry sample out of the odometer cell if the initial moisture content is greater than 70%. Utilizing 3D printing technology, the dial cap was printed out using material polylactic acid (PLA). Then, the seating pressure has been significantly reduced, and the newly achieved seating load turned out to be 0.002 TSF, including the porous stone weight. With the 3D-printed dial cap, dredged soil samples with a moisture content up to 100% could be successfully tested. The laboratory test results of the consolidation properties of Louisiana dredged soils are presented in this study. The results suggest that the modified consolidation apparatus can be used to obtain a reliable relationship between void ratio and effective stress for materials with high initial void ratios.
A Study of Consolidation Tests on Dredged Soils with a Large Moisture Content in Coastal Louisiana Using a Modified Odometer
This paper reports a comparative study of the consolidation behavior of dredged soils by using a standard conventional odometer and a modified conventional odometer. A series of tests were carried out on the dredged soil samples from the Louisiana coastal area. Dredged soils are soft and highly moisturized, and thus form a large strain consolidation settlement. For this reason, the seating load, which is the initially applied load at the consolidation test, is an essential factor for the consolidation test of slurry-type dredged soils. The conventional odometer comes up with a large seating pressure of 0.01 TSF (1 TSF = 107.25 kPa), which would squeeze part of the soft slurry sample out of the odometer cell if the initial moisture content is greater than 70%. Utilizing 3D printing technology, the dial cap was printed out using material polylactic acid (PLA). Then, the seating pressure has been significantly reduced, and the newly achieved seating load turned out to be 0.002 TSF, including the porous stone weight. With the 3D-printed dial cap, dredged soil samples with a moisture content up to 100% could be successfully tested. The laboratory test results of the consolidation properties of Louisiana dredged soils are presented in this study. The results suggest that the modified consolidation apparatus can be used to obtain a reliable relationship between void ratio and effective stress for materials with high initial void ratios.
A Study of Consolidation Tests on Dredged Soils with a Large Moisture Content in Coastal Louisiana Using a Modified Odometer
Apu, Omar Shahrear (Autor:in) / Wang, Jay X. (Autor:in)
Geo-Congress 2023 ; 2023 ; Los Angeles, California
Geo-Congress 2023 ; 331-340
23.03.2023
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
| British Library Conference Proceedings | 2023
Modified Odometer for Arid, Saline Soils
| British Library Online Contents | 1994
Modified Odometer for Arid, Saline Soils
| Online Contents | 1994