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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.8, 2004³â, pp.193-203
ÀúÁ¡À» Áß½ÉÀ¸·Î ȸÀüÇÏ´Â °­¼º¿Ëº®¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾Ð
( Active Earth Pressure behind Rigid Retaining Wall Rotating about the Base )
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Ç¥¸éÀÌ °ÅÄ£ °­¼º¿Ëº®ÀÇ °æ¿ì µÞä¿òÀç¿¡¼­ ¹ß»ýÇÏ´Â ¾ÆÄªÈ¿°ú·Î ÀÎÇØ ¿Ëº®¿¡´Â ºñ¼±ÇüÀÇ Åä¾ÐºÐÆ÷°¡ ÀÛ¿ëÇϸç, ¾ÆÄªÈ¿°ú°¡ ºñ¼±ÇüÀÇ Åä¾ÐºÐÆ÷¿¡ ¹ÌÄ¡´Â ¿µÇâÀº ¿Ëº®ÀÇ º¯À§ ÇüÅ¿¡ µû¶ó ´Þ¶óÁø´Ù. µû¶ó¼­ °­¼º¿Ëº®¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾ÐÀÇ Å©±â¿Í ºñ¼±ÇüÀÇ Åä¾ÐºÐÆ÷¸¦ Á¤È®ÇÏ°Ô »êÁ¤Çϱâ À§Çؼ­´Â ¿Ëº®ÀÇ º¯À§ÇüÅ¿¡ µû¶ó ´Þ¶óÁö´Â µÞä¿òÀç¿¡ ¼­ ¹ß»ýÇÏ´Â ½ÇÁ¦Àû ÀÎ ÆÄ±«¸é Çü»ó°ú ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇØ¾ß¸¸ ÇÑ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â °­¼º¿Ëº®ÀÌ ÀúÁ¡À» Áß½ÉÀ¸·Î ȸÀüÇÏ´Â °æ¿ì¿¡ µÞä¿òÀç¿¡¼­ÀÇ ¾ÆÄªÈ¿°ú¿Í ºñ¼±ÇüÀÇ ÆÄ±«¸é Çü»óÀ» °í·ÁÇÔÀ¸·Î½á ºñ¼±ÇüÀÇ ÁÖµ¿Åä¾ÐÀ» »êÁ¤ÇÒ ¼ö ÀÖ´Â Åä¾Ð»êÁ¤½ÄÀ» Á¦¾ÈÇÏ¿´´Ù. ÀÌ °úÁ¤¿¡¼­ Åä¾Ð»êÁ¤½ÄÀÌ ¼öÇÐÀûÀ¸·Î º¹ÀâÇØÁö´Â °ÍÀ» ÇÇÇϱâ À§ÇÏ¿© µÞä¿òÀç¿¡¼­ ¹ß»ýÇÏ´Â ºñ¼±ÇüÀÇ ÆÄ±«¸é Çü»óÀº 4°³ÀÇ Á÷¼±À¸·Î ±¸¼ºµÇ´Â °¡»óÀÇ ÆÄ±«¸éÀ¸·Î ´ëüÇÏ¿´´Ù. ±×¸®°í Á¦¾È½ÄÀ¸·ÎºÎÅÍ ±¸ÇÑ ¿¹ÃøÄ¡¸¦ ±âÁ¸ÀÇ ¸ðÇü½ÃÇè °á°ú¿Í ºñ±³ÇÑ °á°ú Á¦¾È½ÄÀº ¸¸Á·½º·± Åä¾Ð ¿¹ÃøÄ¡¸¦ Á¦°øÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Arching effects in backfill materials generate a nonlinear active earth pressure distribution on a rigid retaining wall with rough face, and arching effects on the shape of the nonlinear earth pressure distribution depends on the mode of wall movement. Therefore, the practical shape of failure surface and arching effect in the backfill changed with the mode of wall movement must be considered to calculate accurate magnitude and distribution of active earth pressure on the rigid wall. In this study, a new formulation for calculating the active earth pressure on a rough rigid retaining wall rotating about the base is proposed by considering the shape of nonlinear failure surface and arching effects in the backfill. In order to avoid mathematical complexities in the calculation of active earth pressure, the imaginary failure surface composed of four linear surfaces is used instead of the nonlinear failure surface as failure surface of backfills. The comparisons between predictions from the proposed equations and existing model test results show that the proposed equations produce satisfactory predictions.
 
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Active earth pressure;Arching effect;Non-linear failure surface;Rotating wall;Rotating about the base;Theoretical analysis;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.8, 2004³â, pp.193-203
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411923039759)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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