Experimental and mathematical investigations on unconfined compressive behaviour of costal soft soil under complicated freezing processes

• Autorzy: Wang W. , Li N. , Zhang F. , Zhou A. , Chi S.

Identyfikatory

DOI

10.1515/pomr-2016-0077

• Języki publikacji: EN

Abstrakty

EN

In order to properly understand the effect of freezing-thawing circle (FTC) to mechanical behavior of costal soft soil (CSS), unconfined compressive test is conducted. Six kind FTC times are designed from zero to five. The tested data show that: (1) unconfined compressive strength of CCS decreases nonlinearly with more FTC, and the strength after five FTC times becomes about 22% of its original strength without any freezing-thawing experience; (2) stressstrain curves of all unconfined compressive samples can be well fitted by three-parameter hyperbolic model; (3) and relationship between two parameters and FTC times can be fitted by exponent function, while another parameter can be considered as 0.95. Consequently, one composite hyperbolic- exponent empirical formula is established in order to describe freezing-thawing-dependent stress-strain behavior of CSS. Finally, good agreements have been found between tested dada and simulated results.

Słowa kluczowe

EN

costal soft soil; stress-strain curve model; unconfined compressive behavior; freezing-thawing circle

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2016
• Tom: nr 4
• Strony: 112--116
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Wang W.

• School of Civil Engineering Shaoxing University Shaoxing, China

autor

Li N.

• School of Civil Engineering Shaoxing University Shaoxing, China

autor

Zhang F.

• School of Civil Engineering Shaoxing University Shaoxing, China

autor

Zhou A.

• School of architectural and Civil Engineering, Jiangsu University of Science and Technology, Zhenjiang, China

autor

Chi S.

• Melbourne School of Design, Melbourne University, Victoria, Australia

Bibliografia

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• 14. W. WANG, X. J. SONG, H. LING, T. H. LU, G. W. ZHOU: Composite exponential-hyperbolic model for stress-strain curve of seashore soft soil. Chinese Journal of Geotechnical Engineering, 32(9): 1455(2010).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.