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Çѱ¹Áö¹Ý°øÇÐȸ / v.9, no.1, 1993³â, pp.31-44
¸ð·¡Áö¹Ý¿¡ ŸÀÔµÈ ¸ðÇü °³´Ü°­°ü ¸»¶ÒÀÇ ÁöÁö·Â ºÐ¼®
( Bearing Capacity of Model Open -Ended Steel Pipe Pile Driven into Sand Deposit )
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¸»¶ÒÀÌ ¼³Ä¡µÇ´Â µ¿¾È°ú ÇÏÁßÀÌ ÀçÇϵǴ µ¿¾È¿¡ À¯¹ßµÇ´Â °ü³»ÅäÀÇ °Åµ¿°ú °ü³»Åä°¡ °³´Ü ¸»¶ÒÀÇ ÁöÁö·Â¿¡ ¹ÌÄ¡´Â ¿µÇâ, ±×¸®°í °ü³»ÅäÀÇ ÇÏÁßÀüÀÌ ¸ÞÄ«´ÏÁò µîÀ» ¾Ë¾Æº¸±â À§ÇÏ¿©, °³´Ü¸»¶ÒÀÇ ´Ü¸éºÎ¿¡ ÀÛ¿ëÇÏ´Â ÁöÁö·Â°ú °ü³»Åä¿¡ ÀÇÇÑ ÁöÁö·Â ¹× ¿ÜÁָ鸶Âû·ÂÀ» ºÐ¸®ÇÏ¿© ÃøÁ¤ÇÒ ¼ö ÀÖµµ·Ï Á¦ÀÛµÈ ¸ðÇü °³´Ü°­°ü¸»¶Ò°ú ¾Ð·ÂÁ¶ÀýÀÌ °¡´ÉÇÑ ÅäÁ¶¸¦ ÀÌ¿ëÇÏ¿© ¸ð·¡Áö¹ÝÀ» ´ë»óÀ¸·ÎÇÑ ¸ðÇü¸»¶Ò½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÇÇè°á°ú·ÎºÎÅÍ, °³´Ü¸»¶ÒÀÇ Æó»öÁ¤µµ´Â Æó»ö±æÀ̺ñ(PLR)º¸´Ù´Â ƯÁ¤È¸¼öÀ²(${gamma}$)¿¡ ÀÇÇÏ¿© ´õ Á¤È­È÷ ¼ºÀÇµÉ ¼ö ¸®À½À» ¾Ë ¼ö ÀÖÀ¸¸ç, ³»Áָ鸶Âû·ÂÀÇ ´ëºÎºÐÀº ¸»¶Ò ¼±´ÜºÎ·ÎºÎÅÍ ¸»¶Ò³»°æÀÇ 3¹è±îÁöÀÇ ¿µ¿ª¿¡ Á¸ÀçÇÏ´Â °ü³»Åä¿¡ ÀÇÇÏ¿© ¹ß»ýµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ Àüü ÁöÁö·Â¿¡¼­ ³»Áָ鸶Âû·ÂÀÌ Â÷ÁöÇÏ´Â ºñÀ²Àº ¿ÜÁָ鸶Âû·ÂÀÌ Â÷ÁöÇÏ´Â ºñÀ²º¸´Ù »ó´çÈ÷ Å©±â ¶§¹®¿¡, °³´Ü¸»ÂÊÀÇ ÁöÁö·Â »êÁ¤½Ã ³»Áָ鸶Âû·ÂÀº ÇʼöÀûÀ¸·Î °í·ÁµÇ¾î¾ß ÇÑ´Ù.
Model tests in calibration chamber with open -ended steel pipe pile have been performed in sand deposit to clarify effect of soil plug on bearing capacity, load transfer mechanisms in soil plug, and behavior of soil plug under dynamic and static conditions. Model piles were devised so that bearing capacity of open -ended pile could be measured separately into outside skin friction, inside skin friction due to soil plug -pile interaction and end bearing force on the section of steel pipe pile. It may be concluded, form the test results, that the plugging level of open -ended pile is more correctily defined by specific recovery ratio, y, rather than by plug length ratio, PLR, and the major part of inside skin friction is generated within the range of three times as long as the inner diameter of the pile from the pile tip. The ratio of inside skin friction to total bearing capacity is much larger than that of outside skin friction to total bearing capacity. Therefore, the bearing capacity of pile could not be well predicted, unless the inside skin friction is properly taken into account.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.9, no.1, 1993³â, pp.31-44
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920444889)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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