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Evaluation of technology of vertical soil freezing

UDK: Evaluation of technology of vertical soil freezing

K.S. Yadovina, S.S. Lashova, S.V. Kaloshina

In this article the technology of natural and artificial freezing of soil, in particular freezing of vertical workings of small depth, is considered step by step. This topic is highly relevant in areas of permafrost and under the conditions of the urban underground construction on difficult soil. Thus, the main problems associated with natural and artificial soils freezing and their possible solutions are designated. The vertical process of artificial freezing of soils during excavation of pits and trenches is presented. Possible ways of freezing are described: brine, unbrine and combined. Traditional and new options of the working refrigerating substances for each method with the indication of their applicability are given. The analysis of dependence of time spent for works on freezing, and its overall cost from distance between the freezing wells is carried out on the example of a construction ditch. The ratio between change of heat conductivity of the frozen soil and expenses of time and cost of works is similarly revealed. The estimation of efficiency of application of natural and artificial soils freezing is given.

Файл: К.С. Ядовина, С.С. Лашова, С.В. Калошина.pdf, 10 pag.

Рубрика: Геотехника и геотехнологии
Выпуск №7: По материалам VIII Всероссийской молодежной конференции аспирантов, молодых ученых и студентов «СОВРЕМЕННЫЕ ТЕХНОЛОГИИ В СТРОИТЕЛЬСТВЕ. ТЕОРИЯ И ПРАКТИКА», (Часть II ,сентябрь, 2016)