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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.10, 2006³â, pp.121-129
Áö¿À±×¸®µå º¸°­ Stone ColumnÀÇ ÆÄ±«¸ÞÄ«´ÏÁò ¹× ÁöÁö·Â Ư¼º - Ãà¼Ò¸ðÇü½ÇÇèÀ» ÅëÇÑ °íÂû
( Load Carrying Capacity and Failure Mechanism of Geogrid Reinforced Stone Columns : Reduced-Scale Model Tests )
À̴뿵;¼Û¾Æ¶õ;À¯Ãæ½Ä; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;¼º±Õ°ü´ëÇб³ ´ëÇпø Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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¼â¼®±âµÕ °ø¹ýÀº ¼ºÅäÁ¦¹æ, ±³·®±³´ë±âÃÊ, ¿ÀÀÏÅÊÅ©¿Í °°Àº ħÇÏ¿¡ ¹Î°¨ÇÑ ±¸Á¶¹°ÀÇ ÁöÁö·Â Áõ´ë ¹× ¾Ð¹Ð ÃËÁø¿¡ È¿°úÀûÀÎ Áö¹Ý °³·® °ø¹ýÀÌ´Ù. ¼â¼®±âµÕ °ø¹ýÀº Áö¹ÝÀÇ ÁöÁö·Â Áõ´ë, ħÇϰ¨¼Ò, Ãø¹æÀ¯µ¿ ¹æÁö ¹× ¾×»óÈ­ ¹æÁö µîÀÇ È¿°ú¸¦ ±â´ëÇÒ ¼ö ÀÖ´Ù. ÃÖ±Ù µé¾î¼­´Â ¼â¼®±âµÕÀÇ ¿Üº®À» Åä¸ñ¼¶À¯·Î º¸°­(°¨½Ó) ±¸¼Ó·ÂÀ» Áõ°¡½ÃÄÑ ÁÜÀ¸·Î½á ¼â¼®±âµÕ Áö¹ÝÀÇ ÇÏÁßÁöÁö·ÂÀ» °³¼±½ÃŰ´Â °ø¹ý¿¡ ´ëÇÑ °ü½ÉÀÌ Áõ°¡Çϰí ÀÖÀ¸³ª, Áö¿À±×¸®µå º¸°­ ¼â¼®±âµÕ °ø¹ý¿¡ ´ëÇÑ ¿¬±¸´Â ü°èÈ­µÇ¾î ÀÖÁö ¾Ê´Â ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â ½Ç³»¸ðÇü½ÇÇèÀ» ÅëÇØ Áö¿À±×¸®µå·Î º¸°­ ¼â¼®±âµÕÀÇ ÇÏÁßÁöÁö·Â Ư¼º ¹× ÆÄ±«ÇüŸ¦ °íÂûÇÏ¿´À¸¸ç, ½ÇÇè°á°ú¸¦ ÅëÇØ Áö¿À±×¸®µå·Î º¸°­ÇÏÁö ¾ÊÀº ¼â¼®±âµÕ°ø¹ý¿¡ ºñÇØ Áö¿À±×¸®µåº¸°­ ¼â¼®±âµÕ°ø¹ýÀÇ ÁöÁö·Â °³¼±È¿°ú°¡ Å©°Ô ³ªÅ¸³²À» ¾Ë ¼ö ÀÖ´Ù.
Stone column is one of the ground improvement systems which is being used for accelerating consolidation and increasing bearing capacity for settlement sensitive structures like load embankments, bridge abutments, oil storage tanks etc. The effects of this method are enhancement of ground bearing capacity, reduction of settlement, prevention of liquefaction and prevention of lateral ground movement. Recently, geosynthetic reinforced (encased) stone column approach has been developed to improve its load carrying capacity through increasing confinement effect. Although such a concept has successfully been applied in practice, fundamentals of the method have not been fully explored. This paper presents the results of an investigation on the bearing capacity and failure mechanism of geogrid-encased stone column by model tests. The results of the analyses indicated improved bearing capacity of the geogrid reinforced stone column method over the conventional strone column method with no encasing.
 
Ű¿öµå
Bearing capacity;Geogrid;Ground improvement;Stone column;Model test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.10, 2006³â, pp.121-129
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623521298)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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