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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.1, 2006³â, pp.63-72
»ç¼®°ú ¸ð·¡·Î µÞä¿òµÈ ÄÉÀ̽¼¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾Ð (I) : Á¤½ÄÈ­
( Active Earth Pressure against Caisson Backfilled with Crushed Rock and Sand (I) : Formulation )
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ÀϹÝÀûÀ¸·Î °­¼º º®Ã¼¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾ÐÀº CoulombÀÇ Åä¾ÐÀ̷п¡ ÀÇÇØ »êÁ¤ µÇ¾î¿Ô´Ù. ±×·¯³ª ¸¹Àº ½ÃÇè°á°ú¿¡ µû¸£¸é º®¸éÀÌ °ÅÄ£ °­¼º º®Ã¼¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾ÐÀº ºñ¼±ÇüÀ¸·Î ºÐÆ÷Çϸç, ÀÌ·¯ÇÑ ºñ¼±ÇüÀÇ Åä¾ÐºÐÆ÷´Â º®Ã¼°¡ º¯À§¸¦ ÀÏÀ¸Å³ ¶§ º®Ã¼¿Í µÞä¿òÀç°£ÀÇ ¸¶Âû¿¡ ÀÇÇØ µÞä¿òÀç¿¡¼­ À¯¹ßµÇ´Â ¾ÆÄªÈ¿°ú ¶§¹®¿¡ ¹ß»ýÇÏ´Â °ÍÀ¸·Î ¹àÇôÁ³´Ù. ÇöÀç±îÁö ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇØ¼­ °­¼º º®Ã¼¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾ÐÀ» »êÁ¤ÇÒ ¼ö ÀÖ´Â Åä¾Ð»êÁ¤½ÄµéÀÌ ´Ù¾çÇÑ ÇüÅ·ΠÁ¦¾ÈµÇ¾ú´Ù. ±×·¯³ª À̵é Åä¾Ð»êÁ¤½ÄÀº µÞä¿òÀç°¡ ±ÕÁúÇÑ °æ¿ì¿¡¸¸ Àû¿ëÇÒ ¼ö ÀÖ´Â °Íµé·Î, Ç׸¸±¸Á¶¹°¿¡ »ç¿ëµÇ´Â ÄÉÀ̽¼°ú °°ÀÌ ¹è¸éÀÌ »ç¼®°ú ¸ð·¡·Î µÞä¿òµÈ °æ¿ì¿¡´Â Àû¿ëÀÌ ºÒ°¡´ÉÇÏ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â »ç¼®°ú ¸ð·¡·Î µÞä¿òµÈ ÄÉÀ̽¼¿¡ ´ëÇÏ¿© ºñ¼±ÇüÀ¸·Î ºÐÆ÷ÇÏ´Â ÁÖµ¿Åä¾ÐÀ» »êÁ¤ÇÒ ¼ö ÀÖ´Â Åä¾Ð»êÁ¤½ÄÀ» Á¦¾ÈÇÏ¿´À¸¸ç, Á¦¾È½ÄÀ» µµÃâÇÏ´Â °úÁ¤¿¡¼­ »ç¼®°ú ¸ð·¡ÀÇ ´ÜÀ§Áß·®°ú ³»ºÎ¸¶Âû°¢ÀÇ ¿µÇâÀÌ ¸ðµÎ °í·ÁµÇ¾ú´Ù.
Coulomb's theory has traditionally been used for the estimation of active earth pressure acting on rigid walls. However, many experimental data show that active earth pressures on rough, rigid walls are nonlinearly distributed. This is due to the arching effects produced by friction between the wall and backfill materials when the wall translates away from the backfill. Although there are analyses that take arching into consideration f3r a horizontal backfill surface and a vertical rigid wall, these analyses were derived for homogeneous backfill. Therefore, it is not possible to use these analyses for a caisson backfilled with crushed rock and sand, a common type of rigid wall for harbor structures. In this study, a new formulation for calculation of the nonlinear active earth pressure acting on a caisson backfilled with crushed rock and sand is proposed considering both internal friction angles and unit weights of the crushed rock and sand.
 
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Caisson;Nonhomogeneous backfill;Nonlinear active earth pressure;Formulation;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.1, 2006³â, pp.63-72
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200612842603511)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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