Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13087/832
Title: Comparison of individual and sequential copper piping systems in an experimental artificial ground freezing model
Authors: Evirgen, Burak
Keywords: Temperature change
Artificial ground freezing
Isotherm
Frozen soil
Frost heave
Soil stability
Issue Date: 2021
Publisher: Springer Heidelberg
Abstract: Artificial ground freezing application creates a cementitious ice structure between grains in addition to shear strength parameters, such as internal friction angle or cohesion. Thus, settlement levels are minimized while the bearing capacity of soil is increased considerably. In this study, the effect of copper pipes in twenty different cases were realized, including four soil types, two piping systems, and four source temperatures with mono ethylene glycol circulation. Temperature/time graphs, horizontal and vertical isotherms, unit temperature changes, formations of frozen cylinders, and obtained peak values were presented to investigate the difference between individual and sequential piping systems in terms of efficiency. The cooling effect increases with a decrease in grain size and permeability parameters, while each soil type shows its specific freezing behavior. Although similar frozen cylinder formations were observed in same soils regardless of piping system, peak temperature values were differed. The most effective freezing process were obtained for MH and SM type of soils for individual and sequential piping systems in terms of average unit temperature drop during first 4 h called as a sudden fall zone, respectively. The largest frozen cylinder diameters proved these temperature results around 169 and 142 mm in the same order. However, the GP type of soil was cooled more easily through the remaining 20 h of linear decrease zone. As a result, the critical frozen sections should be regarded with respect to specific frozen formations of soils in the practical applications of artificial ground freezing projects.
URI: https://doi.org/10.1007/s12517-021-07305-x
https://hdl.handle.net/20.500.13087/832
ISSN: 1866-7511
1866-7538
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu

Show full item record

CORE Recommender

WEB OF SCIENCETM
Citations

1
checked on Mar 18, 2022

Page view(s)

32
checked on Oct 3, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.