frost boil การใช้

• Mechanism and solution of frost heaving and frost boiling
• The settlement against frost heave and frost boil of road
• Analyzing frost heaving and frost boiling of the roadbed
• Prevention and cure of the frost boiling and heaving of roadbed
• Study on the road treatment of frost boiling in nanyangshan segment of s309 road in gansu
• On the countermeasures against road frost boil and heave in the seasonal frozen region
• Currently , there is no good theory interpretation managing the road frost boiling , so studying on this is very meaningful
• First , introduce the purpose , meaning and the research actuality of the research on the frost boiling road . then abstract and analyze the growth environment of the frost boiling road in changchun city
• In the area of seasonal frozen region , the road takes place the cycle of freezing and thawing variety with the season , the mainly disease harm generating from this is the frost heave and frost boiling etc . . . the disease harm belongs to the heat transfer problem , but the effective measure to prevent and cure the frost boiling has something to do with the gradient of temperature and humidity