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Çѱ¹µµ·ÎÇÐȸ / v.11, no.2, 2009³â, pp.167-174
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Æ÷Àå ÇÁ·ÎÆÄÀÏÀÌ Æ÷Àå ÇǷμö¸í¿¡ ¹ÌÄ¡´Â ¿µÇ⠺м®
( Effect of Surface Profiles on Pavement Fatigue Life ) |
| ¹Ú´ë¿í;¾È´ö¼ø;±Ç¼ö¾È; ±º»ê´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î½Ã¼³¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î½Ã¼³¿¬±¸½Ç;
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| º» ³í¹®¿¡¼´Â ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ Ç¥Ãþ ÇÁ·ÎÆÄÀϰú Â÷·®Æ¯¼ºÀÎ Â÷·®¼Óµµ¿Í Çö°¡ÀåÄ¡¸¦ ´Ù¸£°Ô ÇÏ¿© Æ®·° ½Ã¹Ä·¹ÀÌ¼Ç ÇÁ·Î±×·¥À» ÅëÇÑ µ¿ÀûÇÏÁßÀ» ºÐ¼®ÇÏ¿´´Ù. ´Ù¾çÇÑ Æ÷Àå »óÅÂÀÇ ÇÁ·ÎÆÄÀÏÀ» ÀÔ·ÂÇÏ¿© µ¿ÀûÇÏÁßÀ» ºÐ¼®ÇÏ¿´À¸¸ç ÇÁ·ÎÆÄÀÏ, Â÷·®ÀÇ Çö°¡ÀåÄ¡, Â÷·®¼Óµµ¿¡ µû¸¥ µ¿ÀûÇÏÁß º¯È¸¦ ºÐ¼®ÇÏ¿´´Ù. Æ÷Àå °ÅÄ¥±â°¡ Áõ°¡ÇÒ¼ö·Ï µ¿ÀûÇÏÁßÀÌ Áõ°¡ÇÏ¿´À¸¸ç, ¼Óµµ°¡ Áõ°¡ÇÒ ¼ö ·Ï µ¿ÀÏÇÑ Æ÷Àå °ÅÄ¥±â ÇÏ¿¡¼ µ¿ÀûÇÏÁßÀÌ Áõ°¡ÇÏ¿´´Ù. Walking beam Çö°¡ÀåÄ¡°¡ Air spring Çö°¡ÀåÄ¡¿¡ ºñÇØ ´õ Å« µ¿ÀûÇÏÁßÀ» º¸¿´´Ù. µ¿ÀûÇÏÁß °øºÐ»êÀ» ÀÌ¿ëÇÏ¿© Æ÷ÀåÆÄ¼Õ Áö¼ö¸¦ °áÁ¤ÇÏ¿´À¸¸ç, µ¿ÀûÇÏÁß °øºÐ»ê°ú ½Å·Úµµ, ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ ÆÄ±«¸Å°³º¯¼ö°¡ Áõ°¡ÇÒ ¼ö·Ï Æ÷ÀåÆÄ¼ÕÁö¼öµµ Áõ°¡ÇÏ¿´´Ù. º» ¿¬±¸ÀÇ °á°ú¸¦ ÀÌ¿ëÇÏ¿© Â÷·®¼Óµµ¿Í Ç¥Ãþ ¾Æ½ºÆÈÆ® È¥ÇÕ¹° ÆÄ±«Æ¯¼º¿¡ ±Ù°ÅÇÑ Æ÷Àå Æòź¼º ±ÔÁ¤¿¡ ÀÌ¿ëÇÒ ¼ö ÀÖÀ¸¸ç, ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® Æ÷Àå ½Ã°ø ÈÄ Æ÷Àå Æòź¼º¿¡ ±Ù°ÅÇÑ ÁöºÒ±ÔÁ¤¿¡ È¿°úÀûÀ¸·Î »ç¿ëÇÒ ¼ö ÀÖ´Ù°í ÆÇ´ÜµÈ´Ù. |
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| The simulation of dynamic load was conducted based on surface profile on asphalt concrete pavement, vehicle speeds, and suspension types using a truck simulation program. The results of the simulated dynamic load based on different surface profile, vehicle speeds, and suspension types are analyzed. As pavement roughness and vehicle speed are increased, the dynamic load was increased. Walking beam suspension produces greater dynamic load than air spring suspension. Pavement damage index is calculated based on covariance of dynamic load and Paris-Erdogan fracture parameter, n which is based on creep compliance tests of asphalt mixtures used in Korea. The higher covariance of dynamic load, confidence level, and fracture parameter are used, the greater pavement damage index is obtained. Specification of pavement roughness can be developed in various vehicle speeds and asphalt mixtures, and pay factor can be determined after constructing asphalt concrete pavement using pavement damage concepts. |
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| Ç¥Ãþ ÇÁ·ÎÆÄÀÏ;µ¿ÀûÇÏÁß;Çö°¡ÀåÄ¡;Æ÷ÀåÆÄ¼Õ Áö¼ö;Æòź¼º;surface profile;dynamic loading;suspension;pavement damage index;flateness; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.2, 2009³â, pp.167-174
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200921140045904)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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