Freezing prevention and control system used for surface layer of soil body and based on floor heating

Abstract

The invention relates to a freezing prevention and control system used for the surface layer of a soil body and based on floor heating. The freezing prevention and control system used for the surface layer of the soil body and based on floor heating comprises a high-temperature air generator (1), a high-temperature and high-pressure fan (2), a heat energy distribution box (4) and a plurality of permeable heat-dissipation pipes (8), wherein the heat energy dissipation box (4) can dissipate hot air through a plurality of flow guiding pipes (5), and the permeable heat-dissipation pipes (8) are connected with air outlets of the flow guiding pipes (5) and arranged in parallel; and a heat-insulation film (7) is arranged on the heat-dissipation pipes (8), a heat-dissipation side curtain is arranged on the edge, away from the surface layer of the soil body, of the heat-insulation film (7), and all the heat-dissipation pipes (8) are accommodated in an internal space formed defined by the heat-insulation film (7), the heat-dissipation side curtain and the surface layer of the soil body. According to the freezing prevention and control system used for the surface layer of the soil body and based on floor heating, effective delivery and uniform distribution of hot air are ensured, the heating efficiency is high, and the freezing prevention effect is excellent. The freezing prevention and control system used for the surface layer of the soil body and based on floor heating has the advantages of being convenient to mount and implement, flexible to move, large in prevention and control area, high in heat energy efficiency, low in construction cost and the like and is of great importance for ensuring the construction quality, improving the labor efficiency, shortening the construction period and reducing the construction cost.

Description

technical field [0001] The invention relates to the technical field of prevention and control of soil surface freezing, in particular to a soil surface freezing prevention and control system based on floor heating. Background technique [0002] Seasonally frozen soil and permafrost are widely distributed in western my country and alpine regions, accounting for about 70% of China's total land area. In recent years, with the active promotion of the western development, road engineering, large-scale water conservancy and hydropower development projects, etc. have been gradually implemented in the western mountainous and plateau cold regions. As the water in the soil increases in volume during the freezing process, frost heaving forces are generated, forcing the relative displacement of soil particles, and thawing occurs after melting, which is likely to cause damage to structures. Therefore, during the implementation of these projects, roadbeds and The ramming of the dam requi...

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Problems solved by technology

However, these technical measures are all developed for anti-freezing problems such as transmission lines, tunnels and pipelines. Once the anti-freezing system is completed and put into operation, it is difficult to move and change, and these anti-freezing systems have complex structures, high engineering costs, and small anti-freezing ranges, which are difficult to meet. In road or dam projects, the protection of soil materials is huge, the construction work area is wide and changes at any time, and the expected prevention and control goals of soil materials and soil freezing on the working surface cannot be achieved.

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