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2016 | 23 | 4 |

Tytuł artykułu

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

Autorzy

Warianty tytułu

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

Wydawca

-

Rocznik

Tom

23

Numer

4

Opis fizyczny

p.112-116,fig.,ref.

Twórcy

autor
  • School of Civil Engineering, Shaoxing University, Shaoxing, China
autor
  • School of Civil Engineering, Shaoxing University, Shaoxing, China
autor
  • School of Civil Engineering, Shaoxing University, Shaoxing, China
autor
  • School of Architectural and Civil Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
autor
  • Melbourne School of Design, Melbourne University, Victoria, Australia

Bibliografia

  • 1. S. Y. LIU, D. W. ZHANG, Z. B. LIU: Assessment of unconfined compressive strength of cement stabilized marine clay. Marine Georesources and Geotechnology, 26, 19(2008).
  • 2. J. CHAE, B. KIM, S. PARK, S. KATO: Effect of suction on unconfined compressive strength in partly saturated soils. KSCE Journal of Civil Engineering, 14(3), 281(2010).
  • 3. E. KALKAN, S. AKBULUT, A. TORTUM, A. CELIK: Prediction of the unconfined compressive strength of compacted granular soils by using inference systems. Environ. Geol., 8, 1429(2009).
  • 4. X. Q. CHEN, C. H. LI, W. WANG, X. ZHANG: Active geotechnical treatment technology for permafrost embankment of Qinghai-Tibet railway. Te Electronic Journal of Geotechnical Engineering, 17(Y), 3635(2012).
  • 5. Y. FENG, J. L. HE, L. LIANG: Experimental study of the shear strength characteristics of fine-grained soil under freezing and thawing cycles. Journal of Glaciology and Geocryology, 30(6): 1013(2008).
  • 6. Z. Q. ZHANG, Z. P. HU, J. ZHAO: Strength properties of lime-fly ash loess under freezing-thawing cycles. Journal of Traffic and Transportation Engineering, 11(6): 24(2011).
  • 7. Q. Ge, H. Wu, Y. F. Gong: Research on the soil slope stability based on soil strength deterioration in seasonal frozen areas. Advanced Materials Research, 243: 4270(2011).
  • 8. Z. G. SONG, Y. Q. TANG, J. HONG: Experiment study on unconfined compressive strength before and after thaw of the forth layer silt clay in shanghai. Low Temperature Architecture Technology, 31(12): 85(2009).
  • 9. L. L. YU, X. Y. XU, M. Q. LI, P. F. LI, Z. L. YAN: Influence of freeze-thaw on shear strength properties of saturated silty clay. Rock and Soil Mechanics, 31(8): 2448(2010).
  • 10. T. H. WANG, S. F. LUO, X. J. LIU. Testing study of freezing-thawing strength of unsaturated undisturbed loess considering influence of moisture content. Rock and Soil Mechanics, 31(8): 2378(2010).
  • 11. ZAIMOGLU A. SAHINL. Freezing-thawing behavior of fine-grained soils reinforced with polypropylene fibers. Cold Regions Science and Technology, 60(1): 63(2010).
  • 12. BIN-SHAFIQUE SAZZAD, RAHMAN, K., AZFAR IREEN: Te effect of freezing-thawing cycles on performance of fly ash stabilized expansive soil subbases. Geotechnical Special Publication, 211: 697(2011).
  • 13. J. J. GUO, W. WANG, X. N. WANG: Improved hyperbolic model for harden/soften stress-strain curve of Yangtze River soil. Te Electronic Journal of Geotechnical Engineering, 17(L): 1675(2012).
  • 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).

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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