|
|
|
Çѱ¹µµ·ÎÇÐȸ / v.11, no.4, 2009³â, pp.143-152
|
±¹³» LTPP ¿Âµµ ÀڷḦ ÀÌ¿ëÇÑ µ¿°áÁö¼ö¿Í µ¿°á±íÀÌ °ËÁõ ¿¬±¸
( Verification of Freezing Index and Frost Penetration Depth with Temperature Data of Korea LTPP ) |
| ±èºÎÀÏ;Àü¼ºÀÏ;À̹®¼·;ÀÓ±¤¼ö; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸½Ç;±¹ÅäÇØ¾çºÎ °£¼±µµ·Î°ú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸ÀÇ ¸ñÀûÀº ÇöÀç ±¹³»¿¡¼ Àû¿ëµÇ°í ÀÖ´Â µ¿°áÁö¼ö¿Í µ¿°á±íÀÌ »êÁ¤ÀÇ Å¸´ç¼ºÀ» °ËÁõÇÏ´Â °ÍÀÌ´Ù. ÀÌ¿¡ ±¹³»¿¡¼ ¿î¿µµÇ°í ÀÖ´Â LTPP-SPS(Long Term Pavement Performance- Specific Pavement Study)±¸°£ÀÇ ´ë±â¿Âµµ¿Í Æ÷Àåü ±íÀ̺° ¿Âµµ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© µ¿°áÁö¼ö¿Í µ¿°á±íÀ̸¦ »êÁ¤ÇÏ¿´À¸¸ç, ±âÁ¸ °è»ê½ÄÀ» ÀÌ¿ëÇÏ¿© »êÃâµÈ µ¿°á±íÀÌ¿Í ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ ÀÌ ±¸°£µéÀÇ ÀÎ±Ù ÃøÈÄ¼Ò µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© ¿¬µµº° µ¿°áÁö¼ö ÃßÀ̸¦ ºÐ¼®ÇÏ¿´´Ù. º» ¿¬±¸ °á°ú, Áö±¸¿Â³È¿¡ ÀÇÇØ 1987³â ÀÌÈÄ¿¡´Â µ¿°áÁö¼ö°¡ ±Þ°ÝÈ÷ °¨¼ÒÇÏ¿´À¸¸ç, ÇöÀç µµ·Î¼³°è ½Ã Àû¿ëµÇ°í ÀÖ´Â µ¿°áÁö¼ö°¡ °úÇÏ°Ô Àû¿ëµÇ°í ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. ÀÌ¿¡ µ¿°áÁö¼ö »êÁ¤ ½Ã ÇöÇà 30³â µ¥ÀÌÅ͸¦ Åä´ë·Î »êÁ¤Çϱ⺸´Ù ±âÈİ¡ º¯ÈµÈ ½ÃÁ¡ºÎÅÍ ÇöÀç±îÁöÀÇ ÃßÀ̸¦ ºÐ¼®ÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù. ¶ÇÇÑ LTPP-SPS ±¸°£¿¡¼ ÃøÁ¤µÈ Æ÷Àåü ±íÀ̺° ¿Âµµµ¥ÀÌÅ͸¦ ºÐ¼®ÇÑ °á°ú, µ¿»ó¹æÁöÃþÀÌ ¼³°èµÇ¾î ÀÖ´Â 3°³±¸°£¿¡¼ ´ëüÀûÀ¸·Î º¸Á¶±âÃþ±îÁö¸¸ µ¿°áÀÌ ¹ß»ýÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³ª, µ¿»ó¹æÁöÃþÀÌ Á¦ ¿ªÇÒÀ» ¼öÇàÇÏÁö ¸øÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ½ÇÁ¦ ÃøÁ¤µÈ µ¿°á±íÀÌ¿Í °è»ê½ÄÀ» ÅëÇØ »êÁ¤µÈ µ¿°á±íÀ̸¦ ºñ±³ÇÑ °á°ú, ³ë»óµ¿°á°üÀÔÇã¿ë¹ýÀ» ÀÌ¿ëÇÑ ¼³°è¹æ¹ýÀÌ ½ÇÁ¦ ÃøÁ¤µÈ µ¿°á±íÀÌ¿Í °¡Àå À¯»çÇÑ °æÇâÀ» ³ªÅ¸³»¾ú´Ù. |
|
| The purpose of this study is to evaluate the freezing index and frost penetration depth. The freezing index and frost penetration depth were analyzed using air temperature and temperature profile of pavement system in Korea LTPP-SPS(Long Term Pavement Performance-Specific Pavement Study) site. The predicted frost penetration depth were then compared with the measured one from the LTPP sites. And the trend of annual freezing index was analyzed using the temperature data of meteorological stations located in the vicinity of Korea LTPP-SPS site. The result showed that the freezing index was rapidly decreased since 1987, and it was known that the use of freezing index determined from the past 30 years temperature data could cause the over estimates in the pavement thickness design. The temperature profile measured at 3 sections of LTPP-SPS sites showed that the temperature of subbase layer was above $0^{circ}C$, even though anti-frost layers were found in these sections. Comparing the measured and calculated frost depth, the frost depth calculated from the subgrade frost penetration permissible method showed a similar trend with the measured frost depth. |
| |
| Ű¿öµå |
| µ¿°áÁö¼ö;µ¿°á±íÀÌ;freezing index;frost penetration depth;LTPP; |
| |
|
|
 |
|
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.4, 2009³â, pp.143-152
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200909659864480)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|