Temperature adjustment mechanism of composite embankment with perforated ventilation pipe and blocky stone

摘要: Based on the advantages of perforated ventilation characteristic pipe embankment and large porosity blocky stone embankment, composite with is more efficient to protect underlying permafrost. The temperature fields cooling effect air doors are simulated by examining effects holes’ position drilled in pipe, diameter density holes. It shown that permafrost obviously reduces methods, location 0°C isotherm raises significantly, especially under center shoulder quickly, holes lower side most efficient, increase has a slight influence isotherm’s raising slightly influences