|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.5, 2005³â, pp.123-131
|
LRFD¼³°è¹ý¿¡ ÀÇÇÑ ºÎ¸¶Âû·ÂÀÌ ÀÛ¿ëÇÏ´Â ¸»¶ÒÀÇ ¾ÈÁ¤¼º Æò°¡ »ç·Ê ¿¬±¸
( A Case Study on the Stability Evaluation of Piles for Negative Skin Eviction by the LRFD Approach ) |
| Á¶ÃµÈ¯;±è¿õ±Ô;ÀÌ¿ìö; »ï¼º°Ç¼³ T.A.ÆÀ;»ï¼º°Ç¼³ ÁÖÅðø»çÆÀ Åä¸ñÆÄÆ®;»ï¼º°Ç¼³ T.A.ÆÀ;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ¿ì¸®³ª¶ó¿¡¼´Â ÃÖ±Ù ÇØ¾È ¸Å¸³Áö¿ª¿¡¼ÀÇ °Ç¼³°ø»ç°¡ Áõ°¡Çϰí ÀÖ´Â Ãß¼¼ÀÌ´Ù. ÀÌ·¯ÇÑ °æ¿ì ¸»¶Ò±âÃÊ¿¡¼´Â ºÎ¸¶Âû·Â°ú °ü·ÃµÈ ¾ÈÁ¤¼º Æò°¡°¡ Áß¿äÇÑ ¼³°è¿ä¼Ò°¡ µÈ´Ù. ±×·³¿¡µµ ºÒ±¸ÇÏ°í ¸»¶ÒÀÇ ºÎ¸¶Âû·Â ¹®Á¦´Â ¸¹Àº Áö¹Ý ±â¼úÀڵ鿡°Ô ÃæºÐÇÑ ÀÌÇØ°¡ ºÎÁ·ÇÑ ½ÇÁ¤ÀÌ´Ù. ±× ÀÌÀ¯´Â ºÎ¸¶Âû·ÂÀÌ ¸»¶ÒÀÇ Ä§ÇÏ¿Í °ü·ÃµÈ ¹®Á¦ÀÓ¿¡µµ ºÒ±¸ÇÏ°í ´ëºÎºÐÀÇ ¼³°è±âÁصéÀº ¾ÈÀüÀ²¿¡ ÀÇÇÑ ¸»¶ÒÀÇ ÁöÁö·Â »êÁ¤¿¡¸¸ ÃÊÁ¡À» ¸ÂÃß°í Àֱ⠶§¹®À̶ó°í »ý°¢µÈ´Ù. LRFD ¼³°è¹ýÀº ¸»¶ÒÀÇ ÁöÁö·Â°ú °ü·ÃµÈ ±ØÇÑÇѰè»óÅÂÇØ¼® ¿Ü¿¡ ħÇÏ·®°ú °ü·ÃµÈ »ç¿ë¼ºÇؼ®À» °í·ÁÇϹǷΠÀüÅëÀûÀÎ ±¹³» ¼³°è±âÁØÀ» º¸¿ÏÇÏ´Â ¹æ¹ýÀÌ µÉ ¼ö ÀÖ´Ù. º» ³í¹®¿¡¼´Â ºÎ¸¶Âû·ÂÀÌ ÀÛ¿ëÇÏ´Â ¸»¶Ò¿¡¼ LRFD ¼³°è±â¹ýÀ» Àû¿ëÇÏ´Â ¹æ¹ý¿¡ ´ëÇØ ³íÀÇÇϰí À̸¦ ÀüÅëÀûÀÎ ¼³°è±â¹ý°ú ºñ±³ÇÏ¿© º¸¾Ò´Ù. ¶ÇÇÑ, ¸»¶Ò ÀçÇϽÃÇèÀ» ÅëÇÑ ½ÇÁ¦ »ç·ÊºÐ¼®À» ÅëÇÏ¿© °¢ ¼³°è±â¹ýÀÇ Àû¿ë¼ºÀ» ºñ±³ºÐ¼® ÇÏ¿´´Ù. ÀÌ·¯ÇÑ ºÐ¼®À» ÅëÇØ ºÎ¸¶Âû·ÂÀÌ ÀÛ¿ëÇÏ´Â ¸»¶ÒÀÇ ¾ÈÁ¤¼º ºÐ¼® ½Ã Á¢ÇÏ´Â ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇØ ¸î °¡Áö ´ë¾ÈÀ» Á¦½ÃÇÏ¿´´Ù. |
|
| Recently, construction activities in reclaimed onshore areas increase in our country In this case, the stability evaluation of the piles for negative skin friction is an important factor for the design of pile foundation in soft grounds. Nevertheless, the design of piles for negative skin friction (or downdrag forces) is probably poorly understood by many geotechnical engineers. It is mainly because only the bearing capacity aspect is taken into account for the downdrag evaluation of piles in most of design specifications. However, the problems fur negative skin friction of piles are mostly related with settlement rather than bearing capacity Meanwhile, LRFD (Load Resistance Factor Design) approach considers both ultimate limit state in terms of bearing capacity and serviceability limit state in terms of settlements. This paper proposes LRFD approach for the downdrag evaluation of piles and compares this approach to traditional design approach. And also a case history is analyzed. Through the analysis some suggestions to solve the problems for the design of piles for negative skin friction are suggested. |
| |
| Ű¿öµå |
| Downdrag;LRFD;Negative skin friction;Pile;Safety factor; |
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.5, 2005³â, pp.123-131
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200504704323639)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|