Model Test Study on Natural Thawing Temperature Field of Artificial Ground Frozen Wall

Haibing Cai (), Longfei Yang, Changqiang Pang, Mengkai Li, Chanrui Lu and Rongbao Hong
Additional contact information
Haibing Cai: School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Longfei Yang: School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Changqiang Pang: School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Mengkai Li: School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Chanrui Lu: School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Rongbao Hong: School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China

Sustainability, 2023, vol. 15, issue 4, 1-17

Abstract: In order to visualize the evolution and distribution law of the ground temperature field during artificial freezing construction, an indoor model test study was carried out based on the independently constructed hygrothermal coupling artificial ground freezing test platform. The test results show that the soil temperature in the freezing process went through the three stages of a steep drop, a slow drop, and stabilization, the earliest closure position of the frozen wall was the intermediate point between two freezing pipes, and the thickness of the frozen wall on different sections showed Section 1 > Section 2 > Section 3 after 61 min of positive freezing. The soil temperature in the natural thawing process went through the four stages of a rapid rise, short hysteresis, a second rapid rise, and a linear slow rise. By fitting the test data, the distribution function of the pipe wall temperature along the pipe length under natural thawing conditions was obtained. The research results can provide a valid basis for the numerical calculation model of a three-dimensional non-uniform natural thawing temperature field and can also provide a reference for the design of settlement grouting under natural thawing conditions.

Keywords: artificial ground freezing method; hygrothermal coupling; model test; temperature field (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/4/3186/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/4/3186/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:4:p:3186-:d:1063160

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().