冰耕土不排水抗剪强度及其影响因素

IF 0.5 4区地球科学 Q4 GEOLOGY

Baltica Pub Date : 2021-01-01 DOI:10.5200/baltica.2021.2.8

Domas Gribulis, K. Dundulis, Saulius Gadeikis, Sonata Gadeikienė

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引用次数: 0

摘要

本文介绍了立陶宛东部土质粘性土的不排水抗剪强度试验结果，该土质粘性土具有刚性和极刚性稠度和低塑性的特点。根据LST EN ISO 14688-2:2018岩土工程调查和试验-土壤的鉴定和分类-第2部分:分类原则中提出的土壤分类，测试的土壤被分类为砂质低塑性粘土。采用三轴压缩(未固结不排水)法测试不排水抗剪强度。试验结果表明，粒径分布的特殊性对这些土壤的不排水强度，即粘土和细粉土组分与其他土壤组分的相关性有重要影响。

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Undrained shear strength of glacial till soils and its determining factors

This article presents results of the test conducted on the undrained shear strength of till clayey soils of Eastern Lithuania, which are characterized by rigid and very stiff consistency and low plasticity. According to the classification of soils presented in LST EN ISO 14688–2:2018 Geotechnical Investigation and Testing – Identification and Classification of Soil − Part 2: Principles for a Classification, the tested soils are classified as sandy low plasticity clays. The undrained shear strength was tested using the triaxial compression (unconsolidated undrained) method. The test results showed that peculiarities of the particle size distribution had a crucial impact on the undrained strength of these soils, i.e. on the correlation of clay and fine silt fractions with the rest of soil components.

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来源期刊

Baltica 地学-地质学

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： BALTICA is an international periodical journal on Earth sciences devoted to the Baltic countries region and the Baltic Sea problems. This edition as a Yearbook is established in 1961 by initiative of Academician Vytautas Gudelis. Since 1993, an Editor-in-Chief of the journal became Academician Algimantas Grigelis. BALTICA is published biannually (in June and December) in cooperation with geoscientists of the circum-Baltic States. BALTICA is publishing original peer-reviewed papers of international interests on various Earth sciences issues. The particular emphasis is given to Quaternary geology, climate changes and development of ecosystems, palaeogeography, environmental geology, as well as stratigraphy, tectonics, sedimentology and surface processes with relevance to the geological history of the Baltic Sea and land areas. Journal emphasizes modern techniques, methodology and standards. The journal structure comprises original articles, short reviews, information, bibliography.