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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.5, 2007³â, pp.15-27
»çÁúÅä Áö¹Ý¿¡ ½Ã°øµÇ´Â Áö¿À±×¸®µå º¸°­ ¼â¼®¸»¶ÒÀÇ ÁöÁö·Â °Åµ¿Æ¯¼º
( Load Carrying Capacity of Geosynthetic-Reinforced Stone Column in Cohesionless Ground )
À¯Ãæ½Ä;¼Û¾Æ¶õ;±è¼±ºó;À̴뿵; ¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ±¹ÅäÁö¹Ý¿¬±¸ºÎ;
 
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º» ³í¹®¿¡¼­´Â »çÁúÅä Áö¹Ý¿¡ ½Ã°øµÇ´Â °í°­µµ Áö¿À±×¸®µå º¸°­ ¼â¼®¸»¶Ò(Geosynthetic-Reinforced Stone Column, GRSC)ÀÇ ´Ù¾çÇÑ ¿µÇâÀÎÀÚ °ËÅ並 ÅëÇÑ ÁöÁö·Â °Åµ¿Æ¯¼ºÀ» ´Ù·ç¾ú´Ù. º» ¿¬±¸´Â GRSCÀÇ ±¹³» Àû¿ëÀ» À§ÇÑ »çÀü¿¬±¸·Î¼­ ´ëÇü ±¸Á¶¹°ÀÇ ±âÃÊÁöÁö ¸»¶ÒÀ¸·Î Àû¿ë½Ã¸¦ ´ë»óÀ¸·Î 2Â÷¿ø À¯ÇÑ¿ä¼Ò ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. À¯ÇÑ¿ä¼ÒÇØ¼® °á°ú GRSC¿Í ¼â¼®¸»¶Ò(Stone Column, SC)ÀÇ ºñ±³¸¦ ÅëÇØ Áö¿À±×¸®µå º¸°­ÀÌ ÁöÁö·Â Áõ°¡¿¡ ÇöÀúÈ÷ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ Áö¹Ý°­µµ¿Í ¼â¼®±âµÕ Á÷°æ, Áö¿À±×¸®µå °­¼º¿¡ ´ëÇØ ÁöÁö·ÂÀº Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³­ ¹Ý¸é, °¨½Ó±æÀÌ¿¡ ´ëÇØ¼­´Â 3D(D=¼â¼®±âµÕ Á÷°æ)ÀÌ»óÀÇ °¨½Ó¿¡ ´ëÇØ ÁöÁö·ÂÀÌ ¼ö·ÅÇÏ´Â °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â GRSC Àû¿ë½Ã È¿À²ÀûÀÎ Áö¿À±×¸®µå º¸°­ÀÇ ÃÖÀûÁ¶°ÇÀ» Á¦¾ÈÇÏ¿´´Ù.
This paper deals with the bearing capacity behaviour of geosynthetic-reinforced stone column(GRSC) constructed in soft ground, as part of an investigation regarding the applicability of GRSC in Korea. In this study, two-dimensional finite element analyses were performed to investigate the effect of relevant design factors on the bearing capacity behaviour. The parametric study is performed for various influencing factors. The results indicated that the geogrid encasement tends to significantly improve the load carrying capacity of a stone column. Also found were that the geogrid encasement length and its stiffness significantly affect the load carrying capacity behaviour of GRSC, and that the encasement length of three times the stone column diameter is sufficient in mobilizing the full reinforcement effect. Practical implications of the findings are discussed.
 
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Bearing capacity;Geosynthetic;FEM;Soft ground;Stone column;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.5, 2007³â, pp.15-27
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200724737435038)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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