| Issue |
MATEC Web Conf.
Volume 265, 2019
International Geotechnical Symposium “Geotechnical Construction of Civil Engineering & Transport Structures of the Asian-Pacific Region” (GCCETS 2018)
|
|
|---|---|---|
| Article Number | 04020 | |
| Number of page(s) | 8 | |
| Section | Soil Behavior and Geomechanics | |
| DOI | https://doi.org/10.1051/matecconf/201926504020 | |
| Published online | 30 January 2019 | |
Low-temperature ground freezing methods for underground construction in urban areas
National University of Science and Technology MISIS, 119991 Moscow, Russia
* Corresponding author: pvnikolaev@misis.ru
Artificial ground freezing (AGF) is a commonly used ground improvement technique. It can be applied in diverse construction projects in dense populated urban areas where other methods are inapplicable. In this article are discussed several methods of ground freezing, such as: “brine” freezing, liquid nitrogen freezing, solid carbon dioxide freezing. Their advantages and disadvantages are indicated. For solid carbon dioxide freezing, several approaches are presented. One of them is a brine “aftercooling” freezing method. They can significantly increase efficiency of ground freezing and reduce its cost.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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