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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.7, 2008³â, pp.51-60
»çÁúÅä Áö¹Ý¿¡¼­ Shell ±âÃÊ °Åµ¿¿¡ ´ëÇÑ ¿¬±¸
( A Study on Shell Foundation Behaviour in Cohesionless Soil )
±è»óȯ;Á¤¿ë¼ö;°íµ¿ÇÊ;°­¼Ò¶ó; È£¼­´ëÇб³ Åä¸ñ°øÇаú;È£¼­´ëÇб³ Åä¸ñ°øÇаú;È£¼­´ëÇб³ Åä¸ñ°øÇаú;°Ç±¹´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ³í¹®Àº ±âÃÊÀÇ °Åµ¿¿¡ ¿µÇâÀ» ÁÖ´Â ¿©·¯ °¡Áö ÀÎÀÚ Áß Æ¯È÷, ±âÃÊÇü»ó¿¡ º¯È­¸¦ ÁÖ¾úÀ» °æ¿ì ±âÃÊÀÇ °Åµ¿¿¡ ÃÊÁ¡À» µÎ°í ¿¬±¸ÇÏ¿´´Ù. ½ÃÃÊÇü»óÀ¸·Î´Â ½Ã°ø¼º ¹× °æÁ¦¼ºÀÌ °¡Àå ¿ì¼öÇÏ´Ù°í ÆÇ´ÜµÇ´Â Shell±âÃÊ ÇüŸ¦ Á¦½ÃÇÏ¿´°í ¼öÄ¡ÇØ¼® ¹× ½Ç³»¸ðÇü½ÃÇèÀ» ½Ç½ÃÇÏ¿© µµÃâÇÑ °á°ú °ª°ú Terzaghi, MeyerhofµîÀÇ À̷аªÀ» ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú, ÀϹݱâÃÊ¿¡ ºñÇØ Shell ±âÃÊÀÇ Ä§ÇÏ´Â 15%Á¤µµ Å©°Ô ¹ß»ýµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸³ª, ÁöÁö·ÂÀº $20%{sim}25% Á¤µµ Çâ»óµÇ´Â °á°ú¸¦ ¾ò¾ú´Ù. ƯÈ÷ Shell ±âÃÊ $60^{circ}$ÀÎ °æ¿ì ÀÏ¹Ý ±âÃÊ¿¡ ºñÇØ 33%ÀÇ ÁöÁö·ÂÀÌ Çâ»óµÇ´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾úÀ¸¹Ç·Î ¿¬±¸µÈ ±âÃÊÇü»óÀÌ ½Ç¿ëÈ­ µÇ¸é °æÁ¦¼º°ú ¾ÈÁ¤¼ºÀÌ È®º¸µÈ ±âÃÊ ¼³°è±â¼ú¿¡ °øÇåÇÒ °ÍÀ¸·Î ±â´ë µÈ´Ù.
In this paper, the behaviour of shell foundation was studied. In the theoretical program, the general shallow foundation theories and failure mechanism developed by Terzaghi, Mayerhof and others were reviewed and compared. In the numerical study, the 2 and 3 dimensional FEM simulations were carried out using an uncoupled-analysis approach. The results obtained from the model test show that the bearing capacity of shell foundation was about 25% to 30% larger than that of general foundation. Due to the cases of shell angle, the maximum bearing capacity of shell foundation shows when the shell angle of foundation was $60^{circ}$. In addition, even if the shell foundation has various advantages compared with the general foundations as described above, the practical verifications in full scale size will be necessary to use in the field and will be helpful in the technical development of other special foundations.
 
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Cohesionless soil;Model test;Shell angle;Shell foundation;Upper boundary theorem;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.7, 2008³â, pp.51-60
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200834347672408)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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