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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.8, 2007³â, pp.5-16
Áö¿À±×¸®µå °¨½Ó ¼â¼®±âµÕ °ø¹ýÀÇ Àå.´Ü±â ÇÏÁß ÁöÁö Ư¼º - À¯ÇÑ¿ä¼ÒÇØ¼®À» ÅëÇÑ °íÂû
( Short- and Long-term Load Carrying Capacity of Geogrid-encased Stone Column - A numerical investigation )
À̴뿵;¼Ò¾Æ¶õ;±è¼±ºó;À¯Ãæ½Ä; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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À¯·´ µîÁö¿¡¼­ ¿¬¾àÁö¹Ý °³·® ¶Ç´Â Á¦¹æ±âÃʷμ­ Àû¿ëµÇ´Â ¼â¼®±âµÕ °ø¹ýÀº ÀϹÝÀûÀÎ ÆÄÀϱâÃÊÀÇ ´ë¾È°ø¹ýÀ¸·Î °æÁ¦¼º ¹× ½Ã°ø¼º Ãø¸é¿¡¼­ È¿À²ÀûÀ̸ç, ¾×»óÈ­ ¹æÁö¿¡µµ È¿°ú°¡ ÀÖ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ¶ÇÇÑ ÃÖ±Ù µé¾î¼­´Â ´õ¿í ¹ßÀüµÈ ÇüÅÂÀÇ Áö¿À±×¸®µå º¸°­ ¼â¼®±âµÕ °ø¹ý¿¡ °üÇÑ ¿¬±¸°¡ Ȱ¹ßÈ÷ ÁøÇàµÇ°í ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. ÀÌ¿Í °ü·ÃÇÏ¿© º» ³í¹®¿¡¼­´Â Áö¿À±×¸®µå º¸°­ ¼â¼®±âµÕ °ø¹ýÀÇ ¼ºÅäÇÏÁß¿¡ ´ëÇÑ ¼â¼®±âµÕÀÇ ÇÏÁßÁöÁö Ư¼ºÀ» °íÂûÇϱâ À§ÇØ 2Â÷¿ø À¯ÇÑ¿ä¼ÒÇØ¼®À» ¼öÇàÇÏ¿´°í, Áö¿À±×¸®µå º¸°­È¿°ú, Áö¿À±×¸®µå °­¼º, Áö¿À±×¸®µå °¨½Ó±íÀÌ µî ¿µÇâÀÎÀÚ¿¡ ´ëÇÑ ¸Å°³º¯¼ö ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ÇØ¼®°á°ú·ÎºÎÅÍ Áö¿À±×¸®µå º¸°­Àº ¼â¼®±âµÕ °ø¹ýÀÇ Àå ´Ü±â ÇÏÁßÁöÁö Ư¼º °³¼±½ÃÄÑ ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
The stone column method is widely used in Europe as an alternative to conventional pile foundations. Several benefits of using the stone column method include sound performance, low cost, expediency of construction, and liquefaction resistance among others. Recently, geosynthetic-encased stone column approach has been developed to improve its load carrying capacity through increasing confinement effect. Although such a concept has been successfully applied in practice, fundamentals of the method have not been fully explored. This paper presents the results of an investigation on the load carrying capacity of geogrid-encased stone column using a series of 2D finite element analyses. A parametric study was then conducted for influencing factors such as effect of geogrid encasement, encasement length, geogrid strength, among others. The results of the analyses indicated improved short- and long-term load carrying capacity of the geogrid-encased stone column method has advantages over the conventional stone column method without encasing.
 
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Finite element method;Geogrid encaemnt;Soft clay;Stone column;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.8, 2007³â, pp.5-16
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734516348429)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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