JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Numerical Investigation of Freezing and Thawing Process in Buried Chilled Gas Pipeline
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Numerical Investigation of Freezing and Thawing Process in Buried Chilled Gas Pipeline
Shin, Hosung; Park, Heungrock;
  PDF(new window)
 Abstract
Characteristic behaviors of geo-structure during freezing and thawing process have to be understood based on fundamental knowledge on phase change in porous soil and interaction between soil and structure. Inversion analysis using published one-dimensional soil freezing tests was conducted to suggest a mechanical model to consider an effect of the ice saturation on Young`s modulus. Silty soil was more sensitive to temperature than weathered granite soil and sand, and weathered granite soil was more affected by initial water saturation in stiffness decrease than silty soil. Numerical simulations on chilled gas pipeline showed that shielding effect from surrounding frozen zone around the pipe decreases impact from external load onto the pipe. And a pipe installed in sand backfill showed more heaving due to relatively low stiffness of sand during freezing than that of surrounding in-situ weather granite soil. However, it had more stable stress condition due to effective stress redistribution from external load.
 Keywords
Frozen soil;THM coupling;Chilled gas pipeline;
 Language
Korean
 Cited by
 References
1.
Andersland, O. B. and Ladanyi, B. (2004), Frozen Ground Engineering, John wiley & Sons.

2.
Jaky, J. (1944), "The Coefficient of Earth Pressure at Rest", J. for Society of Hungarian Architects and Engineers, 78 (22), 355-358.

3.
Jamiolkowski, M., Lancellotta, R., LoPresti, D.C.F., and Pallara, O. (1994), "Stiffness of Toyoura Sand at Small and Intermediate Strain", Proceeding of the 13th International Conference on Soil Mechanics and Foundation Engineering, 1, 169-172.

4.
Kang, J.M., Kim, H.S., Hong, S.S., and Kim, Y.S. (2009a), "A Fundamental Study on behavior of Pipeline during Ground Freezing in Vladivostok Site, Russia", Korean Geo-Environmental conference, pp.254-257.

5.
Kang, J.M. and Kim, H.S. (2009b), "An Study on Efficiency and Application of Thermal Siphon in the Permafrost", International Symposium on Urban Geotechnics, pp.963-966.

6.
Klar, A., Soga, K., and Ng, M.Y.A., (2010), "Coupled Deformationflow Analysis for Methane Hydrate Extraction", Geotechnique, Vol.60, No.10, pp.765-776. crossref(new window)

7.
Michalowski, R.L. (2005), "Coefficient of Earth Pressure at Rest", J. Geotech. Geoenviron. Eng., Vol.131, No.11, pp.1429-1433 crossref(new window)

8.
Penner, E. (1967), "Heaving Pressure in Soils during Unidirectional Freezing", Canadian Geotechnical Journal, Vol.4, No.4, pp.398-408 crossref(new window)

9.
Qian, J., Yu, Q., Guo, L., and Hu, J. (2013), "Experimental Study on Convection Characteristics of Crushed-rock Layer", Can Geotech J., Vol.50, No.8, pp.834-840. crossref(new window)

10.
Santamarina, J.C. and Fratta, D. (2005), Discrete Signals and Inverse Problems, Wiley, New York.

11.
Shin, E.C. and Park, J.J. (2003), "An Experimental Study on Frost Heaving Pressure Characteristics of Frozen Soils", Journal of Korean Geotechnical Society, Vol.19, No.2, pp.65-74.

12.
Shin, H., Kim, J.M., Lee, J., and Lee, S.R. (2012), "Mechanical Constitutive Model for Frozen Soil", Journal of Korean Geotechnical Society, Vol.28, No.5, pp.85-94.

13.
Uchida, S., Soga, K., and Yamamoto, K. (2012), "Critical State Soil Constitutive Model for Methane Hydrate Soil", J. Geophys. Res., 117, B03209, doi:10.1029/2011JB008661

14.
Yao, X., Qi, J., and Yu, F. (2014), "Study on Lateral Earth Pressure Coefficient at Rest for Frozen Soils", Journal of Offshore Mechanics and Arctic Engineering, 136, DOI: 10.1115/1.4025546 crossref(new window)

15.
Yoo, C. and Shin, B.N. (2011), "Effect of Cyclic Freezing-Thawing on Compressive Strength of Decomposed Granite Soils", Journal of Korean Geosynthetic Society, Vol.10, No.4, pp.11-20.