Experimental and Numerical Analyses of Freezing Behavior of an Embankment in Cold Regions

Joint Authors

Luo, Xiaoxiao
Ma, Qinguo
Niu, Fujun
Su, Wenji
Hu, He

Source

Mathematical Problems in Engineering

Issue

Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2019-03-10

Country of Publication

Egypt

No. of Pages

13

Main Subjects

Civil Engineering

Abstract EN

Frost heave is the prevailing damage to the embankment in cold regions.

It is a challenge to ascertain frost damage behavior of the embankment due to the complication of freezing-thawing process involving water migration, heat convection process of water, ice-water phase transition, and frost heave.

To investigate the freezing behavior of the embankment, a hydro-thermo-mechanical numerical model is deduced, and an embankment model test is carried out.

Finally, the moisture, temperature, and deformation during the freezing-thawing process are analyzed.

The results show that (1) there exist two warm frozen layers and a frozen layer at the bottom of the embankment at the time of the minimum air temperature and at the time of the maximum thaw depth, respectively.

(2) Under the drive of temperature gradient, the water migrates and the redistributions occur.

The soil in the freezing-thawing front is filled with unfrozen water and ice, and its water content is high, which directly lead to frost heave.

(3) The horizontal deformation at the shoulder is larger than those in other zones, which easily leads to denudation damage.

Meantime, the deformation difference between the shoulder and middle will lead to the longitudinal cracks and consequently embankment failures.

The study will provide a theoretical basis and reference for the design, maintenance and research of embankment in cold regions.

American Psychological Association (APA)

Luo, Xiaoxiao& Ma, Qinguo& Niu, Fujun& Su, Wenji& Hu, He. 2019. Experimental and Numerical Analyses of Freezing Behavior of an Embankment in Cold Regions. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1194341

Modern Language Association (MLA)

Luo, Xiaoxiao…[et al.]. Experimental and Numerical Analyses of Freezing Behavior of an Embankment in Cold Regions. Mathematical Problems in Engineering No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1194341

American Medical Association (AMA)

Luo, Xiaoxiao& Ma, Qinguo& Niu, Fujun& Su, Wenji& Hu, He. Experimental and Numerical Analyses of Freezing Behavior of an Embankment in Cold Regions. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1194341

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1194341