Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Comparisons of One-Dimensional Consolidation Characteristics of Clays by Using Two Different Specimen Sizes
One-dimensional consolidation properties are important for prediction of time-dependent settlement of soft clay deposits. Soft clay samples are usually retrieved by the standard thin-wall sampler having a diameter of 3 in. (75 mm). Due to urgency of soil exploration and lack of this standard thin-wall sampler, some samples are collected by smaller thin-wall samplers and, therefore, cannot be accommodated by the standard consolidation ring. This research studies the effects of specimen size on consolidation properties of soft Bangkok clays by focusing on a comparison of test results between the two different sizes which are: (1) d60 (60 mm in diameter and 20 mm in height that meets the ASTM D2435); and (2) d35 (35 mm in diameter and 20 mm in height; newly developed in this study). Parameters which have been compared are: (1) coefficient of consolidation, cv; (2) compression index, Cc; (3) swelling index, Cs; and, (4) preconsolidation stress, σ'pc. From the test results, the difference in specimen size insignificantly affected all parameters studied.
Comparisons of One-Dimensional Consolidation Characteristics of Clays by Using Two Different Specimen Sizes
One-dimensional consolidation properties are important for prediction of time-dependent settlement of soft clay deposits. Soft clay samples are usually retrieved by the standard thin-wall sampler having a diameter of 3 in. (75 mm). Due to urgency of soil exploration and lack of this standard thin-wall sampler, some samples are collected by smaller thin-wall samplers and, therefore, cannot be accommodated by the standard consolidation ring. This research studies the effects of specimen size on consolidation properties of soft Bangkok clays by focusing on a comparison of test results between the two different sizes which are: (1) d60 (60 mm in diameter and 20 mm in height that meets the ASTM D2435); and (2) d35 (35 mm in diameter and 20 mm in height; newly developed in this study). Parameters which have been compared are: (1) coefficient of consolidation, cv; (2) compression index, Cc; (3) swelling index, Cs; and, (4) preconsolidation stress, σ'pc. From the test results, the difference in specimen size insignificantly affected all parameters studied.
Comparisons of One-Dimensional Consolidation Characteristics of Clays by Using Two Different Specimen Sizes
Kongkitkul, W. (Autor:in) / Kongwisawamitr, K. (Autor:in) / Suwanwattana, V. (Autor:in) / Thaweeprasart, V. (Autor:in) / Sukkarak, R. (Autor:in)
Geo-Shanghai 2014 ; 2014 ; Shanghai, China
Soil Behavior and Geomechanics ; 333-342
05.05.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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