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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.10, 2005³â, pp.113-122
CPT°á°ú¸¦ ÀÌ¿ëÇÑ Çן¸»¶Ò ÁöÁö·Â Æò°¡¸¦ À§ÇÑ ÀúÇ×°è¼ö »êÁ¤
( Estimation of Pile Resistance Factor by CPT Based Pile Capacity )
±è´ëÈ£;ÀÌÁØÈ¯;±è¹üÁÖ; ´ë¿ì¿£Áö´Ï¾î¸µ µµ·Î»ç¾÷ºÎ;¿¬¼¼´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇкÎ;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø ´ï¾ÈÀü¿¬±¸¼Ò;
 
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½Å·Ú¼º ±â¹ÝÀÇ ÇѰè»óż³°è¹ý(Limit State Design; LSD)ÀÇ Áö¹Ý°øÇÐÀû Àû¿ëÀº ¼¼°èÀûÀ¸·Î È®»êÃß¼¼À̸ç, ºÏ¹ÌÁö¿ªÀÇ °æ¿ì ÀϺΠ½Ã¹æ¼­¿¡ ÇÏÁß ¹× ÀúÇ׿¡ ÀÇÇÑ LRFD ¼³°è¹ýÀÌ Áö¹Ý°øÇÐÀû ¼³°è¿¡ Àû¿ëµÇ°í ÀÖ´Ù. ±×·¯³ª Áö±Ý±îÁö Á¦¾ÈµÇ¾î ¿Â Áö¹Ý°øÇÐÀû ÀúÇ×°è¼ö´Â »ó´çÈ÷ Æ÷°ýÀûÀÎ °ªÀ̸ç, ÀÌ¿Í °ü·ÃµÈ ¿¬±¸´Â ¾ÆÁ÷±îÁö Ãʱâ´Ü°è¶ó ÇÒ ¼ö ÀÖ´Ù. ÄܰüÀÔ½ÃÇèÀº ´ëÇ¥ÀûÀÎ ÇöÀå½ÃÇèÀ¸·Î ƯÈ÷ ¸»¶Ò ¼³°è¿¡¼­ À¯¿ëÇÏ°Ô È°¿ëµÇ°í ÀÖÀ¸¸ç, ´Ù¾çÇÑ ¸»¶Ò ÁöÁö·Â »êÁ¤¹ýÀÌ Á¦½ÃµÇ¾î ¿Ô´Ù. º» ¿¬±¸¿¡¼­´Â ÄܰüÀÔ½ÃÇèÀ» ÀÌ¿ëÇÑ Çן ¸»¶Ò ÁöÁö·Â Æò°¡¸¦ À§ÇÑ ÀúÇ×°è¼ö¸¦ »êÁ¤ÇϰíÀÚ ÇÑ´Ù. À̸¦ À§ÇÏ¿© ¿©·¯ Áö¿ª¿¡¼­ ¼öÇàµÈ ¸»¶ÒÀçÇϽÃÇè°ú ÄܰüÀÔ½ÃÇè °á°ú¸¦ ¼öÁýÇÏ¿© È®·üÀû ºÐ¼®À» ¼öÇàÇÏ¿´À¸¸ç, À̸¦ Á¾ÇÕÇÏ¿© ÀúÇ×°è¼ö »êÁ¤¿¡ Àû¿ëÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­´Â ÀüüÁöÁö·Â»Ó¸¸ ¾Æ´Ï¶ó ¸»¶ÒÀÇ ¼±´Ü ¹× ÁÖ¸é ÁöÁö·Â °¢°¢¿¡ ´ëÇÑ ÀúÇ×°è¼ö ¶ÇÇÑ µµÃâÇϰíÀÚ ÇÏ¿´´Ù. ÀúÇ×°è¼ö »êÁ¤ °á°ú, ¸ñÇ¥½Å·ÚµµÁö¼ö $2.0{sim}2.5$ÀÇ ¹üÀ§¿¡¼­ ÀüüÁöÁö·Â¿¡ ´ëÇÑ ÀúÇ×°è¼ö $0.35{sim}0.55$¹üÀ§¸¦ ³ªÅ¸³»¾ú´Ù.
Application of Limit State Design in geotechnical engineering has become world-widely popular. While LRFD code in the North America presents geotechnical load and resistance factors, the values of resistance factors proposed by these methods are still unstable with limited application. CPT has been widely used for the pile design and various methods have been proposed to estimate the bearing capacity of piles. In this paper, resistance factors for representative pile design methods based on CPT results are evaluated. Field pile load test and CPT results were collected and analyzed in order to obtain necessary statistical data and resistance factors. Resistance factors of the base, shaft, and total capacity are estimated. From fisrt order second moment (FOSM) analysis, resistance factors of $0.30{sim}0.55$ are estimated for total load capacity.
 
Ű¿öµå
CPT;Limit state design;Load resistance factored design;Pile design;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.10, 2005³â, pp.113-122
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200509408735059)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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