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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.3, 2007³â, pp.15-24
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µµ·Î±âÃÊÀÇ Rutting ¿¹Ãø¿¡ ¹ÌÄ¡´Â ÀÀ·ÂÀÇÁ¸ ź¼º°è¼ö¿Í Æ÷¿Í¼ÛºñÀÇ ¿µÇâ
( Effect of Stress-Dependent Modulus and Poisson's Ratio on Rutting Prediction in Unbound Pavement Foundations ) |
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| º» ³í¹®Àº µµ·Î±âÃÊ ÀÔ»óÀç·áÀÇ ÀÀ·ÂÀÇÁ¸ÀûÀΠƯ¼ºÀ» °í·ÁÇÑ ÀÀ·ÂÀÇÁ¸Àû Àç·á »ó¼öÀÇ Àû¿ëÀ» ÅëÇÏ¿© Ãþ º¯Çü¿¹ÃøÀ» ¼öÇàÇÏ´Â °£ÆíÇÑ ¹æ½ÄÀ» ¼Ò°³ÇÑ´Ù. ÀÌ ¹æ¹ýÀº UnboundÁö¹ÝÀç·á¿¡ ´ëÇÏ¿© ȸº¹º¯Çü°ú ¿µ±¸º¯ÇüÀ» ±¸ºÐÇÏ¿© °í·ÁÇÏ¸ç µÎ º¯ÇüÀÇ »óÈ£ÀÛ¿ëÀ» Àû¿ëÇÏÁö ¾Ê´Â ¹æ½ÄÀÌ´Ù. ±× °á°ú ȸº¹º¯Çü ź¼º°è¼ö¿Í Æ÷¿Í¼Ûºñ¸¦ Æ÷ÇÔÇÑ ÇØ¼®¸ðÇüÀº »óÈ£ÀÛ¿ëÀÌ °í·ÁµÇÁö ¾Ê¾Æµµ ÇöÀå¿¡¼ÀÇ µµ·Î±âÃÊ º¯ÇüÀ» ¿¹ÃøÇÒ ¼ö ÀÖÀ½À» Àß º¸¿©ÁÖ°í ÀÖ´Ù. ¶ÇÇÑ ÀÀ·ÂÀÇÁ¸ ź¼º°è¼ö¿Í ÀÀ·ÂÀÇÁ¸ Æ÷¿Í¼Û ºñ ¸ðÇü¿¡¼ °¡Àå ¿µÇâÀ» ¸¹ÀÌ ¹ÌÄ¡´Â °è¼ö¸¦ ã±â À§ÇÏ¿© ¹Î°¨µµºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. ÀÌ·¯ÇÑ ºÐ¼®°á°ú¸¦ Åä´ë·Î ÀÀ·ÂÀÇÁ¸¿¡ ÀÇÇÏ¿© º¯Çü ¿¹Ãø½Ã ³ªÅ¸³ª´Â °æÇâÀ» »ìÆìº¸¾Ò´Ù. |
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| This paper will present a simple approach (or predicting layer deformation of unbound pavement materials with stress-dependent material properties. The approach is based on an uncoupled formulation in which the resilient and deformation response of unbound materials are considered separately. As a result, an uncoupled approach incorporating a resilient stiffness and Poisson's ratio model is able to simulate field measured deformation in pavement foundations. In addition, a sensitivity analysis is conducted to identify the significant factors in the stress-dependent modulus and Poison's ratio model. The predicted trends of deformation from this analysis are presented and discussed. |
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| Finite element analysis;Layer deformation;Pavement foundations;Stress-Dependent Modulus; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.3, 2007³â, pp.15-24
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200714539254080)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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