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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.4, 2003³â, pp.95-105
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( Assessment of Design Criteria for Bearing Capacity of Rock Socketed Drilled Shaft )
¹é±ÔÈ£;»ç°ø¸í; °üµ¿´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Æ÷Ç×»ê¾÷°úÇבּ¸¿ø °­±¸Á¶¿¬±¸¼Ò Åä¸ñ±¸¿¬±¸ÆÀ;
 
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¾Ï¹Ý¿¡ ±ÙÀÔµÈ ÇöÀ埼³¸»¶ÒÀÇ ÁöÁö·Â »êÁ¤À» À§ÇÏ¿© Á¦¾ÈµÈ ±âÁ¸ÀÇ ¼³°è±âÁذú °æÇè½ÄµéÀÇ ´ëºÎºÐÀº ÀçÇϽÃÇèÀÇ °á°ú¿¡ ÀϰüµÇÁö ¾ÊÀº ÆÄ±«±âÁØÀ» Àû¿ëÇØ¼­ ¾ò¾îÁø ±ØÇÑÁöÁö·Â¿¡ ±Ù°ÅÇØ¼­ ¾ò¾îÁ³´Ù. ±× °á°ú À̵é»êÁ¤½ÄµéÀº µ¿ÀÏÇÑ Á¶°Ç¿¡ ¼³Ä¡µÈ ¸»¶Ò¿¡ ´ëÇØ¼­µµ ¼­·Î ´Ù¸¥ ¿¹ÃøÄ¡¸¦ Á¦°øÇÏ°Ô µÈ´Ù. º» ¿¬±¸¿¡¼­´Â ¾Ï¹Ý¿¡ ±ÙÀÔµÈ ÇöÀ埼³¸»¶ÒÀÇ ÁöÁö·ÂÀ» ÇÕ¸®ÀûÀ¸·Î »êÁ¤ÇÒ ¼ö ÀÖ´Â ÃÖÀûÀÇ ÁöÁö·Â»êÁ¤½ÄÀ» °áÁ¤Çϱâ À§ÇÏ¿© ±âÁ¸ÀÇ ÁöÁö·Â»êÁ¤½Äµé¿¡ ´ëÇÏ¿© Á¤È®µµ¸¦ Á¶»çÇÏ¿´´Ù. À̸¦ À§Çؼ­ 11°³ÀÇ ÀçÇϽÃÇè °á°ú¿¡ µ¿ÀÏÇÑ ÆÄ±«±âÁØÀ» Àû¿ëÇÔÀ¸·Î½á ¸»¶ÒÀÇ ±ØÇѼ±´ÜÁöÁö·Â°ú ±ØÇÑÁָ鸶Âû·ÂÀ» °áÁ¤ÇÏ¿´À¸¸ç, À̵éÀº ±âÁ¸ »êÁ¤½ÄÀ¸·ÎºÎÅÍ °è»êµÈ ¿¹ÃøÄ¡ÀÇ Á¤È®µµ Á¶»ç¿¡ ÀÌ¿ëµÇ¾ú´Ù. ¿¹ÃøÄ¡¿Í ÃøÁ¤Ä¡¸¦ ºñ±³ÇÑ °á°ú Zhang°ú EinsteinÀÇ Á¦¾È½Ä°ú NAVFACÀÇ ¼³°è±âÁØ¿¡ ÀÇÇØ °è»êµÈ ±ØÇѼ±´ÜÁöÁö·ÂÀÌ ½ÇÃøÄ¡¿¡ °¡Àå ±ÙÁ¢ÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×¸®°í ±ØÇÑÁָ鸶Âû·ÂÀÇ °æ¿ì¿¡´Â Rosenberg¿Í JourneauxÀÇ Á¦¾È½ÄÀÌ ¸¸Á·½º·¯¿î ¿¹ÃøÄ¡¸¦ Á¦°øÇÏ¿´´Ù.
The existing design criteria f3r the estimation of ultimate bearing capacity of drilled shaft socketed into rock masses are mainly obtained from the ultimate pile load capacities, which are determined by inconsistent failure criteria. Therefore, these design criteria generally produce difffrent predictions even for drilled shaft in the same condition. In this paper, the accuracies of the existing design criteria are investigated to develop an optimized design process for drilled shaft socketed into rock masses. Reasonable and consistent ultimate capacities of drilled shafts socked into rock masses, necessary far the check of accuracies of predictions, are determined by applying a specific failure criterion to a total of 11 pile load test results. A comparison between the predicted and the measured load capacities shows that ultimate base load capacities calculated from Zhang and Einstein's equation and NAVFAC are close to the measured values. Rosenberg and Journeaux's equation produces satisfactory prediction f3r ultimate side load capacity.
 
Ű¿öµå
Design criterion;Drilled shaft;Rock socket;Side load capacity;Base load capacity;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.4, 2003³â, pp.95-105
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921886481)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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