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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.7, 2004³â, pp.183-196
¿¬¾àÁö¹ÝÀÇ ¸ð·¡´ÙÁü¸»¶Ò¿¡ ´ëÇÑ ÇÏÁßÀüÀÌ ¿¬±¸
( Study on Lond Transfer Characteristics of Sand Compaction Piles in Soft Soil Deposits )
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¸ð·¡´ÙÁü¸»¶ÒÀº ¾Ð¹ÐħÇÏÃËÁø°ú ÁöÁö·ÂÇâ»óÀ» µµ¸ðÇÒ ¼ö ÀÖ´Â ¿¬¾àÁö¹Ý °³·®°ø¹ýÀ¸·Î ±× »ç¿ë¼ºÀÌ Áõ°¡Çϰí ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ½Ç³»½ÃÇè°ú 3-D À¯ÇÑ¿ä¼ÒÇØ¼®À» ¼öÇàÇÏ¿© $30-40%$ÀÇ ÀúġȯÀ² ¸ð·¡´ÙÁü¸»¶ÒÀÇ ÇÏÁßÀüÀÌÆ¯¼ºÀ» °íÂûÇØº»´Ù. ¶ÇÇÑ, ÀÌ·¯ÇÑ ¿¬±¸°á°ú´Â ½ÇÇèÄ¡¿ÍÀÇ °ËÁõÀ» ÅëÇÏ¿© ¸ð·¡´ÙÁü¸»¶Ò ÇÏÁßÀüÀÌÆ¯¼ºÆò°¡¸¦ À§ÇÑ °£Æí¹ýÀ» Á¦½ÃÇϴµ¥ »ç¿ëµÇ¾ú´Ù.
Sand Compaction Pile (SCP) is a soft-ground improvement technique used for not only accelerating consolidation but also increasing bearing capacity of soils. In this study, laboratory tests and 3-D finite element analysis were peformed to investigate the characteristics of load transfer in SCP with an emphasis on free-strain behavior of piles with low replacement ratios in the range of 30 to $50%$. Through these focused tests and numerical analyses, we proposed a simplified method to analyze the load transfer characteristics of SCP in soft ground. Moreover, it was shown that estimated normal stresses in SCP using the proposed method were in a reasonable agreement with actual values.
 
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Finite element analysis;Free strain;Load transfer characteristics;Replacement ratio;Sand compaction pile (SCP);Stress concentration ratio;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.7, 2004³â, pp.183-196
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200425720311315)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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