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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.9, 2009³â, pp.77-92
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( Estimation of Pile Tension Loads Induced by Excavation in Singapore Soft Clay Applying a Pile-Plugged Jet Grouted Slab )
À̽·¡;¹ÚÇö±¸;½ÉÀç¹ü;ÀÓ¼®»ê;½Å°­È£; Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;»ï¼º¹°»ê °Ç¼³ºÎ¹®;»ï¼º¹°»ê °Ç¼³ºÎ¹®;»ï¼º¹°»ê °Ç¼³ºÎ¹®;
 
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º» ¿¬±¸¿¡¼­´Â ¾Ð¹ÐÀÌ ÁøÇàÁßÀÎ ½Ì°¡Æ÷¸£ Áö¿ª ¿¬¾àÁö¹Ý¿¡¼­ ¸»¶Ò-±×¶ó¿ìÆÃ ½½¶óºê °ø¹ýÀÌ Àû¿ëµÈ Èë ¸·ÀÌ ±¼Âø ½Ã ÇÕ¸®ÀûÀÎ ¸»¶ÒÀÇ ÀÎÀå·Â »êÁ¤À» À§ÇÑ ¼öÄ¡ÇØ¼® ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ¼±Çüź¼º/Mohr-Coulomb¼Ò¼º ¸ðµ¨À» Àû¿ëÇÑ 2Â÷¿ø ¼öÄ¡ÇØ¼®À» ÅëÇØ ±¼Âø Áß ¸»¶Ò-±×¶ó¿ìÆÃ ½½¶óºê °ø¹ý¿¡ ÀÇÇÑ º¸°­È¿°ú¸¦ »ìÆìº¸¾Ò°í ´Ù¾çÇÑ Áö¹Ý º¯¼ö¿¡ ´ëÇÑ ¸Å°³ º¯¼ö ÇØ¼®À» ¼öÇàÇÏ¿© ¸»¶Ò ÀÎÀå·ÂÀÇ »êÁ¤°ú °ü·ÃÇÏ¿© ÇÙ½ÉÀûÀÎ ¿µÇâ ÀÎÀÚ¸¦ ÆÄ¾ÇÇÏ¿´´Ù. À̸¦ ¹ÙÅÁÀ¸·Î ÇØ¼ºÁ¡Åä Áö¹ÝÀÇ ¾Ð¹Ð »óŸ¦ °í·ÁÇϱâ À§ÇÏ¿© ¼öÁ¤ Cam-Clay ¸ðµ¨À» ÅëÇØ ÇöÀåÀÇ ºñ¹è¼ö Àü´Ü°­µµ ºÐÆ÷·ÎºÎÅÍ ÇöÀåÀÇ À¯È¿ÀÀ·Â»óŸ¦ ¿ªÀ¸·Î ÃßÁ¤ÇÏ¿´À¸¸ç ½Ç³» ½ÃÇè ºÐ¼®À» ÅëÇØ ÃßÁ¤µÈ ÇÙ½É ¿µÇâ ÀÎÀÚÀÇ ¹üÀ§¸¦ »êÁ¤ÇÏ¿© ÇÕ¸®ÀûÀ¸·Î ¸»¶ÒÀÇ ÀÎÀå·ÂÀ» »êÁ¤ÇϰíÀÚ ÇÏ¿´´Ù.
In the present paper, a numerical study was carried out for a reasonable and realistic evaluation of tension loads in piles during deep excavation in Singapore soft soil applying pile-plugged jet grouted slab. Based on 2-dimensional finite element analyses using linear elastic-perfectly plastic soil model obeying Mohr-Coulomb failure criterion, effects of pile-plugged jet grouted slab on the stability during excavation were examined, and a parametric study was also conducted to investigate critical influencing parameters in the estimation of reliable pile tension loads. Finally, based on the Modified Cam-Clay model, pile tension loads were estimated by considering on-going consolidation state of the Singapore clay deposit and the range of critical parameters observed during laboratory tests.
 
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Excavation;Pile tension load;Numerical analysis;Marine clay;Grout slab;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.9, 2009³â, pp.77-92
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200934939599704)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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