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Çѱ¹µµ·ÎÇÐȸ / v.13, no.1, 2011³â, pp.21-32
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( A Study on The Frost Penetration Depth of Pavement with Field Temperature Data )
½ÅÀºÃ¶;ÀÌÀç½Ä;Á¶±ÔÅÂ; ÀÎõ´ëÇб³ Åä¸ñȯ°æ°øÇаú;ÀÎõ´ëÇб³ Åä¸ñȯ°æ°øÇаú;ÀÎõ´ëÇб³ °øÇбâ¼ú¿¬±¸¼Ò;
 
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Æ÷ÀåÀÇ µ¿°á±íÀÌ´Â 30³â°£ÀÇ ±â¿ÂÀڷḦ ºÐ¼®ÇÏ¿© ¸¸µç µ¿°áÁö¼ö¸¦ ±Ù°Å·Î ÇÏ¿© µ¿»ó¹æÁöÃþÀÇ µÎ²²¸¦ °áÁ¤ÇÑ´Ù. º» ¿¬±¸¿¡¼­ÀÇ ÇöÀå°èÃø Áö¿ªÀº µ¿°áÁö¼ö¿¡ µû¶ó µ¿°áÁö¼ö 550~650$^{circ}C{cdot}$ÀÏ, 450~550$^{circ}C{cdot}$ÀÏ, 350~450$^{circ}C{cdot}$ÀÏ·Î ±¸ºÐÇÏ¿© Áö¿ªÀ» ¼±Á¤ÇÏ¿´°í, °¢ Áö¿ªº°·Î ÀýÅäºÎ, Àý¼º°æ°èºÎ, Àú¼ºÅäºÎ(2m ÀÌÇÏ ¼ºÅäºÎ) ±¸°£À¸·Î ´Ü¸éÀ» ±¸ºÐÇÏ¿´´Ù. °¢ ´Ü¸é¿¡ µ¿»ó¹æÁöÃþ À¯ ¹«¸¦ ±¸ºÐÇÏ¿© Æ÷ÀåÃþº°·Î °èÃø±â(¿Âµµ, ÇÔ¼öºñ)¸¦ ¼³Ä¡ÇÏ°í µ¥ÀÌÅ͸¦ ¼öÁýÇÏ¿´´Ù. ÇöÀå ¸ð´ÏÅ͸µ ½Ã½ºÅÛÀ» ÅëÇÏ¿© ¼öÁýµÈ µ¥ÀÌÅÍ ºÐ¼®À» ÅëÇÏ¿© Æ÷ÀåµÈ µµ·ÎÀÇ µ¿°á±íÀ̸¦ °áÁ¤Çϴµ¥ ÀÌ¿ëÇÒ ¼ö ÀÖ´Ù. ¿¬±¸ °á°ú, µ¿»ó¹æÁöÃþÀÌ ¾øÀ» °æ¿ì µ¿°áÁö¼ö 550~650$^{circ}C{cdot}$ÀÏ Áö¿ª¿¡¼­´Â ´ë±â¿Âµµ¿¡ µû¶ó °Ü¿ïö ³ë»óÃþÀÇ ¿Âµµ°¡ $0^{circ}C$ ÀÌÇÏ·Î ³ªÅ¸³µ°í, µ¿°áÁö¼ö 450~550$^{circ}C{cdot}$ÀÏ Áö¿ª¿¡¼­´Â Áö¿ªº°·Î »óÀÌÇßÀ¸¸ç, µ¿°áÁö¼ö 350~450$^{circ}C{cdot}$ÀÏ Áö¿ª¿¡¼­´Â µ¿»ó¹æÁöÃþÀÌ ¾ø¾îµµ ³ë»óÃþÀÇ ¿Âµµ°¡ $0^{circ}C$ ÀÌÇÏ·Î ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ¶ÇÇÑ, Æ÷Àå ´Ü¸éº°·Î µ¿°á±íÀ̸¦ ºñ±³ÇÑ °á°ú ´ë±â¿Âµµ¿¡ µû¶ó µ¿°á±íÀÌ´Â ÀýÅäºÎ°¡ °¡Àå ³ô¾ÒÀ¸¸ç, Àý¼º°æ°èºÎ, Àú¼ºÅäºÎ ¼øÀ¸·Î ´Ü¸éº° Â÷À̰¡ ³ªÅ¸³µ´Ù.
The frost penetration depth of pavement is usually estimated from the freezing index that made temperature data analysis of 30 years and decided the thickness of anti-frost layer. The field monitoring region in study was divided into five regions by freezing index 550~650$^{circ}C{cdot}$day, 450~550$^{circ}C{cdot}$day and 350~450$^{circ}C{cdot}$day. Each region has three-section of road pavement such as cutting area, boundary area of cutting and banking, and lower area of banking. The field monitoring system was established both in the section of anti-frost layer and in the section without anti-frost layer. The data analysis was conducted for determination of frost penetration depth within the paved road by the field monitoring system. The result showed that The temperature of subgrade without anti-frost layer shows below zero in centigrade for the region of freezing index 550~650$^{circ}C{cdot}$day, up and down around zero degree in subgrade for the region of freezing index 450~550$^{circ}C{cdot}$day, and there is no place existed below zero degree in subgrade for the region of freezing index below 450$^{circ}C{cdot}$day. With comparison of field frost penetration depth for the cross-sections of pavement, the cutting area shows the greatest frost penetration depth, and less influence of frost penetration depth for the boundary area of cutting and banking, and the least influenced for the lower area of banking.
 
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ÇöÀå°èÃø;µ¿»ó¹æÁöÃþ;µ¿°á±íÀÌ;µµ·ÎÆ÷Àå;field measurement;anti-freezing layer;frost penetration depth;pavement;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.13, no.1, 2011³â, pp.21-32
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201117148819772)
¾ð¾î : Çѱ¹¾î
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