Iron tower mounting method for frozen soil

Abstract

The invention discloses an iron tower mounting method for frozen soil. According to the iron tower mounting method, in the special frozen soil area and in the construction process of a tower footing foundation, direct on-site fabricating can be achieved in a prefabricating mode, the construction difficult of the cold area is lowered, and the construction efficiency is improved; through the mode ofpre-burying balancing cold bars, on the one hand, the effect of reinforcing the tower footing foundation is achieved, on the other hand, the effect of transferring the cooling capacity on the daily time span is achieved, the cooling capacity is stored and released through a nano composite phase change cold storage materials, thus double transferring of the cooling capacity is achieved in time andspace, temperature stability and balance of the frozen soil environment are ensured, strength reducing and water loss caused by temperature increasing and soil mass melting are not prone to occurring, further freezing shrinkage cracking and irregular internal stress of the soil mass due to temperature decreasing are not prone to occurring either, cooling capacity transferring can be well utilizedto realize balancing of the soil mass temperature, and structural stability and high strength of the soil mass are maintained.

Description

technical field [0001] The invention relates to the technical field of iron tower foundation construction, and more specifically, relates to an iron tower installation method for frozen soil. Background technique [0002] Permafrost refers to various rocks and soils below zero degrees Celsius and containing ice. Generally, it can be divided into short-term frozen soil (several hours / days to half a month) / seasonal frozen soil (half a month to several months) and permafrost (also known as permafrost, which refers to freezing that lasts for two years or more) unmelted soil). [0003] Permafrost has rheological properties, and its long-term strength is much lower than the instantaneous strength characteristics. Because of these characteristics, construction of engineering structures in permafrost regions must face two major dangers: frost heaving and thawing. As the climate warms, permafrost continues to degrade. [0004] In the natural environment, affected by the change of...

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Problems solved by technology

In addition, in the warm season, the topsoil melts during the day and freezes at night, all due to the gradual downward warming or cooling from the surface, which is always roughly parallel to the level of the surface level. Inhomogeneity, the soil temperature is high during the day and begins to melt, the strength of the soil decreases with the evaporation of water, and the soil temperature

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