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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.1, 2011³â, pp.65-76
Áö¿À±×¸®µå º¸°­Åä ±³´ëÀÇ Àå±â°Åµ¿¿¡ °üÇÑ ¼öÄ¡ÇØ¼® ¿¬±¸
( Long-Term Behavior of Geogrid Reinforced Soil Abutment - A Numerical Investigation )
À¯Ãæ½Ä;ÀüÇÑ¿ë; ¼º±Õ°ü´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;ÀÎÇÏ´ëÇб³ ³ª³ë½Ã½ºÅÛ°øÇкÎ;
 
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º» ³í¹®¿¡¼­´Â º¸°­Åä ±¸Á¶¹°ÀÇ Àå±â°Åµ¿¿¡ °üÇÑ ¼öÄ¡ÇØ¼® ³»¿ëÀ» ´Ù·ç¾ú´Ù. º» ¿¬±¸´Â »ç¿ë¿¬Çѵ¿¾È Áö¼ÓÇÏÁßÀ» ¹Þ´Â º¸°­Åä ±¸Á¶¹°ÀÇ Àå±â º¯Çü °ü·Ã ¸ÞÄ«´ÏÁòÀ» °íÂûÇϴµ¥ ÁÖ ¸ñÀûÀ» µÎ¾ú´Ù. ¿¬±¸¸¦ À§ÇØ ¸ÕÀú Singh-Mitchell Å©¸®ÇÁ ¸ðµ¨°ú ¸èÇÔ¼ö(Power law) Å©¸®ÇÁ ¸ðµ¨À» ÀÌ¿ëÇÏ¿© °¢°¢ µÚä¿òÈë°ú º¸°­ÀçÀÇ Å©¸®ÇÁ º¯ÇüÀ» ¸ðµ¨¸µÇÏ´Â ¹æ¾ÈÀ» ±¸ÃàÇÏ¿´À¸¸ç À̸¦ Åä´ë·Î µÚä¿òÈë°ú Åä¸ñ¼¶À¯ º¸°­ÀçÀÇ Å©¸®ÇÁ Ư¼º¿¡ ´ëÇÑ ¸Å°³º¯¼ö ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ÇØ¼®°á°ú ¿ÜºÎÇÏÁßÀ» ¹Þ´Â º¸°­Åä ±¸Á¶¹°ÀÌ ¼¼¸³ºÐÀÌ ¸¹ÀÌ Æ÷ÇԵǾî ÀÖ´Â ÈëÀ¸·Î µÚä¿òÀÌ µÉ °æ¿ì µÚä¿òÈë°ú Åä¸ñ¼¶À¯ º¸°­Àç·ÎºÎÅÍ ¹ß»ýÇÏ´Â Å©¸®ÇÁ È¿°ú·Î ÀÎÇØ »ó´çÇÑ Å©±âÀÇ Àå±â º¯ÇüÀÌ ¹ß»ýÇÒ ¼ö ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º» ³í¹®¿¡¼­´Â ¿ÜºÎÇÏÁßÀ» ¹Þ´Â º¸°­Åä ±¸Á¶¹°¿¡ À־ Å©¸®ÇÁ È¿°ú°¡ ±¸Á¶¹°ÀÇ »ç¿ë¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ÁýÁßÀûÀ¸·Î °íÂûÇÏ¿´´Ù.
This paper presents the results of a numerical investigation on the long-term behavior of geosynthetic reinforced soil abutment. The investigation was carried out aiming at identifying the governing mechanisms of the long-term deformation of geosynthetic-reinforced soil abutment subjected to sustained loads during service life. A numerical modeling strategy was first established using the Singh-Mitchell creep model and the power law model, respectively, for the backfill and the geosyntehtic reinforcement. A parametric study on the creep properties of the backfill and the geosynthetic reinforcement was then conducted. The results indicated that a geosynthetic reinforced soil structure backfilled with marginal soil may exhibit substantial long-term deformation due to the creep effects caused by both the backfill soil and the geosynthetic reinforcement, the magnitude of which depends largely on the creep properties. This paper highlights the importance of considering the creep effect on load supporting geosynthetic reinforced soil structures when the long-term serviceability requirement is of prime importance.
 
Ű¿öµå
Geosynthetic reinforced structures;Long-term deformation;Finite element analysis;Sustained loading;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.1, 2011³â, pp.65-76
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201115537946597)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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