title: ÐÐµÑÐ¾Ð´Ñ Ð·Ð°ÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ñ Ð³ÑÑÐ½ÑÐ¾Ð² Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ ÐÑÐ°Ð¹Ð½ÐµÐ³Ð¾ Ð¡ÐµÐ²ÐµÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ°
titleType: Subtitle
title: Methods of fixing soils in the conditions of the Far North
Creators: name: ÐÑÐºÐ¸Ð½Ð°, ÐÐ»Ð¸Ð·Ð°Ð²ÐµÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð²ÐµÑÐ½Ð¾Ð¼ÐµÑÐ·Ð»ÑÐ¹ Ð³ÑÑÐ½Ñ
ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¹
Ð¸Ð½ÑÐµÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÑÐµÐ¼ÐµÐ½ÑÐ½ÑÐµ ÑÐ¼ÐµÑÐ¸
Ð³ÑÑÐ½ÑÐ¾Ð²Ð¾Ðµ Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ
ÐºÐ¾Ð½ÑÐ¾Ð»Ð¸Ð´Ð°ÑÐ¸Ñ
permafrost soil
substrate stabilization
injection
cement mixtures
ground base
consolidation

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description: The theme of the final qualification work: "Methods of fixing soils in the conditions of the Far North". The purpose of the work is the selection of materials for injection and further use in permafrost conditions, evaluation of the effectiveness of the method of injection with a cement composition to stabilize the subgrade.To achieve the goal, the following tasks were performed: 1. An analysis of methods for fixing soils in the conditions of the Far North was carried out. 2. The geological structure and properties of soils in the territory chosen for analysis are described. 3. The most suitable materials for the described area of ââthe survey area were modeled. 4. Preliminary tests of samples were carried out to determine the most promising for further research in laboratory conditions of the natural environment. 5. The strength characteristics of materials on the 1st, 14th and 28th days were determined, including the determination of bending strength and uniaxial axial compression. 6. The formulations of cement compositions have been optimized in terms of strength and technological characteristics (mortar mobility, frost resistance, etc.). 7. Recommendations have been developed on the technological parameters of the use of solutions. 8. Field natural tests.Based on the laboratory tests and numerical simulations, a general conclusion can be drawn about the possibility of successfully stabilizing existing soil bases, foundation structures and lifting structures using the cement composition studied in the laboratory of PP Hydrocem LLC.The results of the research were implemented in LLC PP Hydrocem and LLC First Geotechnical Company St. Petersburg when designing measures to stabilize soil bases by injection.