Light gathering type frost heaving prevention heat gathering device and roadbed thereof

Abstract

The embodiment of the invention provides a light gathering type frost heaving prevention heat gathering device and a roadbed thereof, and relates to the technical field of seasonal frozen soil area engineering construction. The light gathering type frost heaving prevention heat gathering device comprises a light gathering cover and a heat gathering pipe. The light gathering cover is used for being installed outside the roadbed. The heat gathering pipe comprises a heat absorption section and a heat release section which communicate with each other, the heat absorption section is inserted into the light gathering cover, the heat release section is inserted into the roadbed, the light gathering cover is used for focusing sunlight to the heat absorption section to heat the heat absorption section, the heat absorption section is further used for transferring absorbed heat to the heat release section, and the heat release section is used for heating the roadbed. The light gathering type frost heaving prevention heat gathering device can utilize solar energy resources to realize balanced and flat heating of the roadbed by flatly heating the temperature field of the roadbed and emphatically regulating and controlling the easy frost heaving part of the roadbed, so that the generation of engineering diseases such as frost heaving and non-uniform fluctuation of the roadbed in the seasonal frozen soil region is effectively avoided.

Description

Technical field [0001] The present invention relates to the field of seasonal frozen soil engineering construction techniques, and in particular, there is a photocondensoric anti-frozen swelling polyelectric heat apparatus and a subtree thereof. Background technique [0002] The Qinghai-Tibet Railway West Sigs is located in the northeastern part of the Qinghai-Tibet Plate. The railway line through Qinghai Hubei coastal plain, allurable plains, ice home, with an average sea level 3220m, annual average precipitation 376mm, the average precipitation is uneven, most concentrated in July 7- September The average annual temperature is -0.6 ° C, the temperature temperature in January is -20.6 ° C. The climate is cold in the Qinghai-Tibet Railway, the temperature is frozen, the frozen depth is large, and the maximum freezing depth can reach 1.8m, which belongs to the typical seasonal frozen soil. Thus, due to frozen and melting, it is relatively serious. [0003] In recent years, due to ...

AI Technical Summary

Problems solved by technology

However, there is still a lack of research on the development characteristics and distribution of freeze-thaw engineering diseases under special conditions such as high water level, coarse fill, and strong freeze-thaw in the Xige section of Qinghai-Tibet Railway.

Coarse particle replacement, chemical grouting, waterproof curtain and other methods used in conventional areas are limited by engineering conditions such as normal train running and uninterrupted construction, as well as disposal caused by strong freezing and thawing of soil. Partial cracking and the overall closure of the lower part of the subgrade are extremely difficult, which makes it difficult for these methods to meet the actual engineering needs.

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