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Çѱ¹µµ·ÎÇÐȸ / v.4, no.3, 2002³â, pp.1-13
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¿ªÇÐÀûÀ̷аú °æÇè¿¡ ±Ù°ÅÇÑ ½Ç¿ëÀû ¿¬¼ºÆ÷Àå ¼³°è¹ý °³¹ß
( Evelopment of a Practical Mechanistic-Empirical design Procedure for Flexible Pavements ) |
| ¹Úµ¿¿±;±èÇü¹è;;¼¿µÂù; ÷´Üµµ·Î¿¬±¸¼¾Å¸(AHRC);Çѱ¹µµ·Î°ø»ç;¹Ì½Ã°£ ÁÖ¸³´ë;ÇѾç´ëÇб³ ±³Åë°øÇаú;
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| ÇöÀç µµ·Î ¼³°è´Â ±âÁ¸ÀÇ °æÇèÀûÀÎ ¼³°è¹ý¿¡¼ ¿ªÇÐÀûÀÎ ¼³°è¹ýÀ¸·Î ¹Ù²î°í ÀÖ´Â Ãß¼¼ÀÌ´Ù. ÀÌ·¯ÇÑ Àüȯ±â¿¡¼ ¼¼°è ¸¹Àº µµ·Î±¹µéÀº ¿ªÇÐÀû-°æÇèÀûÀÎ µµ·Î ¼³°è¹ýÀ» °³¹ßÇϰí ÀÖ°í ȤÀº ÀÌ¹Ì Ã¤ÅÃÇÏ¿© Àû¿ëÇϰí ÀÖ´Ù. ÀÌ¿¡ ½ÇÁ¦ ¹Ì±¹ ¹Ì½Ã°£ µµ·Î±¹¿¡¼ ³ª¿Â ÀڷḦ ¹ÙÅÁÀ¸·Î ¿ªÇÐÀû-°æÇèÀû ¼³°è¹ýÀ» °³¹ßÇÏ¿´´Ù. ÀÌ ¿ªÇÐÀû-°æÇèÀû ¼³°è¹ýÀÇ ¿¬°á ÇÔ¼ö (transfer function)·Î »ç¿ëµÉ ¼Ò¼º º¯Çü ¿¹Ãø ¸ðµ¨°ú ÇÇ·Î ±Õ¿ ¿¹Ãø ¸ðµ¨µµ ÇÔ²² °³¹ßµÇ¾ú´Ù. ¿©±â¼´Â ÀÌ ¼³°è¹ýÀ» °³¹ßÇϴµ¥ »ç¿ëµÈ ÀÚ·á¿Í ¿¹Ãø ¸ðµ¨, ¼³°è ¾Ë°í¸®µëµîÀÌ ¼Ò°³µÈ´Ù. ÀÌ ¼³°è¹ýÀÇ °ËÁõÀ» À§ÇØ ±âÁ¸ÀÇ °æÇèÀû ¼³°è¹ý¿¡ ÀÇÇÑ ¼³°è¿Í »õ·Î Á¦½ÃµÈ ¼³°è¹ý¿¡ ÀÇÇÑ ¼³°è°¡ ºñ±³µÈ´Ù. »õ·Î ¼³°èµÈ ¼³°è¹ýÀº ¼³°èÀÚ È¤Àº »ç¿ëÀÚ°¡ µµ·Î ÆÄ¼ÕÀÇ ±âÁØÀ» Á¤·®ÀûÀ¸·Î Á¤ÇÔÀ¸·Î¼ Á»´õ ±¸Ã¼ÀûÀ¸·Î ¼³°è¸¦ ÇÒ ¼ö°¡ ÀÖ´Ù. |
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| Design methods for new flexible pavements and overlays are in the transition from empirical to mechanistic approach, and many state highway agencies trend to move toward the adoption and use of mechanistic-empirical (M-E) design in new constructions and rehabilitations of flexible pavements. Hence, the Michigan Department of Transportation (MDOT) decided to develop a M-E flexible pavement design procedure, in which major pavement distresses such as fatigue cracking and rutting are employed as indicators of the serviceability of a flexible pavement. The main concept of the developed design procedure is that a designed pavement that is supposed to carry a certain number of traffic must satisfy designated thresholds of rut depths and fatigue lives during a service period. For the M-E design procedure, transfer functions were developed to predict rut-depths and fatigue lives. These functions related the pavement responses to pavement performance. For validation, three current new flexible pavement design cases were obtained from the MDOT. In these cases, asphalt concrete (AC) layer thicknesses determined by the suggested M-E procedure compare favorably with those determined by the current MDOT design practice that is based on AASHTO design guide. This finding implies that the suggested Michigan M-E flexible pavement design procedure can provide a good opportunity to improve the current design practice. |
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| M-E ¼³°è¹ý;¿¬¼ºÆ÷Àå;ÆÄ¼Õ¿¹Ãø¸ðµ¨;¼Ò¼ºº¯Çü;ÇǷαտ;M-E pavement design;flexible pavement;distress model;rutting;fatigue cracking; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.4, no.3, 2002³â, pp.1-13
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200215637528004)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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