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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.7, 2005³â, pp.73-80
ÀÀ·ÂÀÇÁ¸¼ºÀ» °í·ÁÇÑ µµ·Î±âÃÊÀÇ Ãþº¯Çü ¿¹Ãø
( Prediction of Layer Rutting on Pavement Foundations Based on Stress Dependency )
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µµ·Î±âÃÊ¿¡¼­ ÀÔ»óÀç·áÀÇ ÀÀ·ÂÀÇÁ¸ Ư¼ºÀ» ¹Ý¿µÇϸé ÀÀ·ÂÀÇÁ¸ ź¼º°è¼ö¿Í ÀÀ·Â ÀÇÁ¸ Æ÷¿Í¼Û ºñ ¸ðµÎ¸¦ µ¿½Ã¿¡ °í·ÁÇÒ ¼ö ÀÖ´Ù. ÀÌ ¹æ½ÄÀº ±âÁ¸ ¿¬¼Óü ¿ªÇп¡ ±âÃÊÇÑ ÇØ¼® ¹æ½Ä°ú´Â ´Þ¸® Ãþ¸ðÇü ³»¿¡¼­ ÀÎÀå·ÂÀÇ ¹ß»ý ´ë½Å ¾ÐÃà·ÂÀÇ ±¸ÇöÀÌ °¡´ÉÇÏ¿© Àç·áÀÇ °­¼º°ú ¿¬¼º¿¡ ´ëÇÑ °Åµ¿À» µ¿½Ã¿¡ ¹Ý¿µÇÏ¿© ÀÔ»óÀç·áÃþÀÇ º¯Çü ¿¹Ãø¿¡ ¸¹Àº ¿µÇâÀ» ÁÖ°í ÀÖ´Ù µû¶ó¼­ º» ³í¹®¿¡¼­´Â µµ·Î±âÃʸ¦ ´ë»óÀ¸·Î Á¦¾ÈµÈ ÀÀ·ÂÀÇÁ¸ ¹× º¯Çü ¸ðÇüÀ» ´ë»óÀ¸·Î À¯ÇÑ¿ä¼Ò¹ý¿¡ ÀÇÇÑ µµ·Î±âÃÊ Ãþº¯Çü ¿¹Ãø ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÏ¿´°í Ãþº¯Çü ¿¹Ãø½Ã ÀÀ·ÂÀÇÁ¸ÀÇ °í·Á¿¡ µû¸¥ ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù.
There are several major practical consequences of stress-dependent properties of unbound pavement foundations. Among those are the stress-dependent modulus and Poisson's ratio's that may change, the compressive stresses that are generated in materials under load, the stiffening and strengthening effect of repeated loading to progressively increase the unbound pavement materials resistance to permanent deformation. In order to study these, the algorithm for predicting deformations on conventional flexible pavements are proposed and the stress-dependent effects on layer deformation are presented in this paper by the developed stress-dependent finite element analysis program with the selected models.
 
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Finite element analysis;Layer deformation;Pavement foundations;Stress-dependency;Unbound materials;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.7, 2005³â, pp.73-80
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200502637765933)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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