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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.11, 2009³â, pp.117-130
¼øÈ¯°ñÀç ´Ù°øÁú ÄÜÅ©¸®Æ®¸»¶Ò(RAPP)¿¡ ÀÇÇØ º¸°­µÈ º¹ÇÕÁö¹ÝÀÇ °Åµ¿ Ư¼º
( Characterization of Composite Ground Reinforced with Recycled-Aggregate Porous Concrete Pile (RAPP) )
À¯½Â°æ;±è¼¼¿ø;ÀÌöȣ;ÃÖÇ×¼®; ¸íÁöÀü¹®´ëÇÐ Åä¸ñ°ú;°í·Á´ëÇб³ °ÇÃà»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà»çȸȯ°æ°øÇаú;
 
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º» ³í¹®¿¡¼­´Â ¼øÈ¯°ñÀç ´Ù°øÁú ÄÜÅ©¸®Æ®¸»¶Ò(Recycled-Aggregate Porous Concrete Pile, RAPP)¿¡ ÀÇÇÑ Áö¹Ý°³·®È¿°ú¸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿© ±âÁ¸¿¡ ¼öÇàµÈ ½Ç³»¸ðÇü½ÇÇè(À¯½Â°æ µî, 2008(a)) °á°ú¸¦ ºÐ¼®ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ ¾ò¾îÁø ½ÇÇè °á°ú¸¦ µ¿ÀÏÇÑ Á¶°Ç¿¡¼­ ¼öÇàÇÑ SCP ½ÇÇè °á°ú¿Í ºñ±³ÇÏ¿© RAPP·Î °³·®µÈ º¹ÇÕÁö¹ÝÀÇ Ä§ÇÏ·®°ú °úÀ×°£±Ø¼ö¾Ð ¹× ¿¬Á÷ÀÀ·ÂÁõºÐÀÇ ½Ã°£¿¡ µû¸¥ º¯È­ Ư¼º°ú º¹ÇÕÁö¹ÝÀÇ °Åµ¿ Ư¼ºÀ» ºñ±³, ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ, ¼öÄ¡ÇØ¼®À» ÅëÇÏ¿© ½Ç³»¸ðÇü½ÇÇè °á°ú¸¦ Æò°¡ÇÏ¿´´Ù. ±× °á°ú, RAPP·Î °³·®µÈ º¹ÇÕÁö¹Ý¿¡¼­ ÇÏÁßÀçÇϽà ÀÀ·ÂºÐ´ãÀÌ ¶Ñ·ÇÀÌ ¹ß»ýÇÏ¿© ħÇÏÀú°¨ È¿°ú°¡ Å©°Ô ¾ò¾îÁ³´Ù. ¶ÇÇÑ, º¹ÇÕÁö¹ÝÀÇ ¾Ð¹Ðµµ¸¦ »êÁ¤ÇÏ¿© ºÐ¼®ÇÑ °á°ú, RAPP´Â ¹è¼öÀç·Î¼­ÀÇ ±â´ÉÀ» ÃæºÐÈ÷ ¹ßÈÖÇÏ¿© ¾Ð¹ÐÃËÁø È¿°ú°¡ ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In this paper, a series of laboratory chamber tests were carried out to evaluate the applicability of a porous concrete pile fabricated with recycled aggregates (RAPP) for the soft ground improvement. While performing the laboratory chamber tests for the RAPP, the surface settlement, excess pore pressure and vertical stress distribution with time were compared with those of SCP provided by You (2003) under the same experimental condition. In addition, the experimental results were compared with the numerical simulation using ABAQUS in this study. The results show that the settlement reduction is significantly enhanced due to the stress-sharing mechanism between the RAPP and soil formation by stress concentration on the RAPP. Furthermore, the comparison of consolidation rate shows that the RAPP can accelerate consolidation as well, which behaves as a vertical drain.
 
Ű¿öµå
Composition ground;Laboratory chamber test;Porous concrete pile;Recycled-aggregate;SCP;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.11, 2009³â, pp.117-130
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200908856856083)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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