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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.199-206
»çÁúÅäÁö¹Ý¿¡¼­ Æó»öÈ¿°ú¸¦ °í·ÁÇÑ °³´Ü¸»¶ÒÀÇ ÁöÁö·Â »êÁ¤ (II) - »õ·Î¿î ÁöÁö·Â »êÁ¤½ÄÀÇ Àû¿ë¼º -
( Estimation of Bearing Capacity for Open-ended Pile in Sands Considering Soil Plugging (II) - Applicability of New Design Equation - )
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°³´Ü¸»¶ÒÀÇ ÁöÁö·ÂÀº °ü³»ÅäÁõºÐºñ(IFR)¿¡ ÀÇÇØ Á¤·®È­ µÉ ¼ö ÀÖ´Â ¸»¶ÒÀÇ Æó»öÁ¤µµ¿¡ Å« ¿µÇâÀ» ¹Þ´Â´Ù. ±×·¯³ª ´ëºÎºÐÀÇ ÁöÁö·Â »êÁ¤½ÄµéÀº IFR¿¡ µû¸¥ ÁöÁö·ÂÀÇ º¯È­¸¦ °í·ÁÇÏÁö ¸øÇϰí ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â ¸ðÇü¸»¶Ò½ÃÇèÀÇ °á°ú¿¡ ±Ù°ÅÇÏ¿© IFRÀ» ÀÌ¿ëÇÑ °³´Ü¸»¶ÒÀÇ ÁöÁö·Â»êÁ¤½ÄÀ» Á¦¾ÈÇÏ¿´´Ù. ¶ÇÇÑ ÀÚ°¥Áú ¸ð·¡Áö¹Ý¿¡¼­ °¢Á¾ °èÃø±â°¡ ºÎÂøµÈ ½Ç´ëÇü °³´Ü¸»¶ÒÀ» ÀÌ¿ëÇÏ¿© ¸»¶ÒÀçÇϽÃÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, ¸»¶ÒÀÌ Å¸ÀԵǴ µ¿¾È ¸»¶ÒÀÇ IFRÀ» ¿¬¼ÓÀûÀ¸·Î ÃøÁ¤ÇÏ¿´´Ù. ±×¸®°í º» ¿¬±¸ÀÇ ÀϺηΠ¼öÇàµÈ ½Ç´ëÇü ¸»¶Ò½ÃÇèÀÇ °á°ú¸¦ Æ÷ÇÔÇÑ µÎ °¡Áö °æ¿ìÀÇ ¸»¶ÒÀçÇϽÃÇè °á°ú¸¦ ÀÌ¿ëÇÏ¿© »õ·Î Á¦¾ÈµÈ ÁöÁö·Â»êÁ¤½ÄÀÇ Á¤È®¼ºÀ» Æò°¡ÇÏ¿´´Ù. ¸»¶ÒÀÇ ÁöÁö·Â¿¡ ´ëÇÑ ÃøÁ¤Ä¡¿Í ¿¹ÃøÄ¡ÀÇ ºñ±³¸¦ ÅëÇÏ¿© º» ¿¬±¸¿¡¼­ Á¦¾ÈµÈ ÁöÁö·Â»êÁ¤½ÄÀº ¸¸Á·½º·¯¿î ¿¹Ãø°á°ú¸¦ ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
The bearing capacity of open-ended piles is affected by the degree of soil plugging, which is quantified by the incremental filling ratio, IFR. However, most design criteria for open-ended piles do not consider the variation of pile bearing capacity with IFR. In this study, new design equations for calculating the pile base and shaft load capacities, based on IFR value of the pile, were proposed using the results of model pile tests. A full-scale pile load test was also conducted on fully instrumented open-ended pile driven into gravelly sand. The IFR for the pile was continuously measured during pile driving. In order to check the accuracy of predictions made with the proposed equations, the equations were applied to two examples, including the pile load test preformed in this study. Based on the comparisons with the pile load tests results, the proposed equations appear to produce satisfactory predictions.
 
Ű¿öµå
Bearing capacity;Full-scale pile load test;Incremental filling ratio;New design equation;Open-ended pile;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.199-206
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921342075)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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