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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.2, 1999³â, pp.95-104
Set-up È¿°ú¸¦ ¹Ý¿µÇÑ Å¸ÀÔ¸»¶ÒÀÇ ÆÄµ¿ÀÌ·ÐÇØ¼®
( Consideration of Set-up Effect in Wave Equation Analysis of Pile Driving. )
õº´½Ä;Á¶ÃµÈ¯; ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;ÆÄÀÏÅ×Å© ¸»¶Ò±âÃÊ¿¬±¸¼Ò;
 
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Set-upÇö»óÀÌ ³ªÅ¸³ª´Â Áö¹Ý¿¡ ÇןµÈ ¸»¶ÒÀÇ ÁöÁö·ÂÀº ½Ã°£°æ°ú¿¡ µû¶ó ÁöÁö·ÂÀÌ Áõ°¡ÇÏ°Ô µÈ´Ù. ÆÄµ¿ÀÌ·ÐÇØ¼®¹ý(WEAPÇØ¼®¹ý)Àº ¸»¶ÒÀÇ Çן°üÀÔ¼ºÀ» Æò°¡Çϴµ¥ ¸Å¿ì À¯¿ëÇÑ °ÍÀ¸·Î Æò°¡µÇ°í ÀÖ´Ù. ±×·¯³ª ±âÁ¸ÀÇ WEAPÇØ¼®¹ýÀº ÇןÈÄ º¯È­ÇÏ´Â Áö¹ÝÀÇ °­µµÆ¯¼ºÀ» °í·ÁÇÒ ¼ö ¾ø´Ù´Â Ãø¸é¿¡¼­ ÀçÇן½ÃÀÇ ½Å·Úµµ ÀÖ´Â ÁöÁö·ÂÀ» ¿¹ÃøÇϴµ¥ ÇѰ谡 ÀÖ´Ù°í Æò°¡µÈ´Ù. WEAP¿¡ ÀÇÇÑ Çן¸»¶ÒÀÇ ÁöÁö·Â Æò°¡°¡ ½Å·Ú¼º ÀÖ±â À§Çؼ­´Â set-upÈ¿°ú°¡ ¹Ý¿µµÇ¾î¾ß¸¸ ÇÑ´Ù. ±×·¯³ª ¾ÆÁ÷±îÁö À̸¦ °í·ÁÇÒ ¼ö ÀÖ´Â ¸¸Á·ÇÒ ¸¸ÇÑ ¹æ¹ýÀÌ ¾ø´Ù. º» ³í¹®¿¡¼­´Â Çן½Ã¿Í ÀçÇן½ÃÀÇ µ¿ÀçÇϽÃÇè °á°úµéÀ» Åë°èºÐ¼®ÇÏ¿© WEAPÇØ¼®½Ã set-upÈ¿°ú¸¦ ¹Ý¿µÇÒ ¼ö ÀÖ´Â ¹æ¾ÈÀ» Á¦½ÃÇÏ¿´´Ù. ¶ÇÇÑ ÇöÀå ½ÃÇè°á°ú¿ÍÀÇ ºñ±³¸¦ ÅëÇØ¼­, Á¦¾ÈµÈ º¯¼ö(quake, damping)¸¦ Àû¿ëÇÑ ÆÄµ¿ÀÌ·ÐÇØ¼® °á°ú´Â ±âÁ¸ÀÇ ¹æ¹ýº¸´Ù ½Å·Ú¼ºÀÌ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
The bearing capacity of piles driven in soils showing set-up tendency increases with time. Though WEAP is an excellent tool for evaluating the driveability of driven pile, it has some limitations to predict reliable bearing capacity of pile after driving. It is because the existing WEAP method cannot take into account time-dependent soil properties after driving. The set-up effect should be accounted for to obtain a reliable bearing capacity by the WEAP. Unfortunately, there are no sufficient methods to take the set-up effect into consideration in wave equation analysis. This paper suggests an alternative to consider time effect in wave equation analysis through statistical analysis of dynamic load test data both at the end of driving and in the beginning of restrike. It is shown that the suggested parameters(quake and damping) would be more reliable than the existing one for the wave equation analysis of driven piles.
 
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WEAP;set-up;Damping;Quake;Driven pile;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.2, 1999³â, pp.95-104
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749076)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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