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Çѱ¹Áö¹Ý°øÇÐȸ / v.16, no.4, 2000³â, pp.31-42
ÇØÁø¿¡ ´ëÇÑ, ½ÉÇØ¿¡ ¼³Ä¡µÈ ±º¸»¶ÒÀÇ ¾ÈÁ¤¼º¿¡ °üÇÑ ¿¬±¸
( A Study on the Stability of Group Piles Installed in the Deep Sea to the Seaquake )
ÃÖ¿ë±Ô;³²¹®¼®;Á¤µÎȯ; Á¤È¸¿ø, °æ¼º´ëÇб³ °øÇдëÇÐ °Ç¼³¡¤È¯°æ°øÇкÎ;Á¤È¸¿ø, °æ¼º´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;Á¤È¸¿ø, °æµ¿±â¼ú°ø»ç ÅäÁúºÎ;
 
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º» ¿¬±¸¿¡¼­´Â ½ÉÇØ(<220m)¿¡ ¼³Ä¡µÈ °³´Ü¸»¶Ò, Æó´Ü ¸»¶Ò, °ü³»Åä ¼±´Ü ÇϺÎÁö¹Ý ±×¶ó¿ìÆÃ¸»¶Ò¿¡ ´ëÇÑ ¾Ð·ÂÅäÁ¶ ¸ðÇü ½ÇÇèÀ» ¼öÇàÇÏ¿© ÇØÁø¿¡ ´ëÇÑ ¾ÈÁ¤¼ºÀ» ¿¬±¸ÇÏ¿´À¸¸ç, °¢°¢ÀÇ °æ¿ì ´ÜÀϸ»¶Ò, 2°³ ¹× 4°³ ±º¸»¶Ò¿¡ ´ëÇÏ¿© ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ÇØÁø½Ã ´ÜÀϰ³´Ü¸»¶ÒÀÇ ÁöÁö·ÂÀº ¸»¶ÒÀÇ ÁöÁß°üÀÔ ±íÀÌ¿¡ ÀÇÇØ ¿µÇâÀ» ¹Þ¾ÒÀ¸³ª, °³´Ü ±º¸»¶Ò¿¡¼­´Â ±ØÈ÷ ªÀº (7m)°üÀÔ±íÀ̸¦ ¸ðµ¨¸µÇÑ °æ¿ì¸¦ Á¦¿ÜÇÏ¸é ¾ÈÁ¤ÇÏ¿´´Ù. ¶ÇÇÑ, ´ÜÀÏÆó´Ü¸»¶Ò°ú Æó´Ü±º¸»¶Ò¿¡¼­´Â ±ØÈ÷ ªÀº 97m) °üÀÔ±íÀ̸¦ ¸ðµ¨¸µÇÑ °æ¿ì¸¸À» Á¦¿ÜÇÏ¸é ¾ÈÁ¤À» À¯ÁöÇÏ¿´´Ù. ±×·¯³ª, 13mÀÇ ÁöÁß°ü±íÀ̸¦ ¸ðµ¨¸µÇÑ ´ÜÀÏ ±×¶ó¿ìÆÃ ¸»¶ÒÀÇ ÁöÁö·ÂÀº °¡º¯»óŸ¦ À¯ÁöÇÏ¿´°í, 20mÀÇ °üÀÔ±íÀ̸¦ ¸ðµ¨¸µÇÑ ±×¶ó¿ìÆÃ ±º¸»¶ÒÀº ¾ÈÁ¤ÇÏ¿´´Ù.½ÉÇØ¿¡ ¼³Ä¡µÈ °³´Ü°­°ü¸»¶ÒÀÇ °ü³»Åä¿Í ¼±´Ü ÇϺÎÁö¹ÝÀ» ±×¶ó¿ìÆÃÇÔÀ¸·Î¼­ ÇØÁø¿¡ ÀÇÇÑ °ü³»ÅäÆó»öÀÇ ÆÄ±«¸¦ ¸·À» ¼ö ÀÖ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´À¸¸ç, Æó´Ü ¸»¶ÒÀº °³´Ü °­°ü ¸»¶Òº¸´Ù ÇØÁø¿¡ ´ëÇØ ¾ÈÁ¤ÇÏ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
In this study, the stability of group piles installed in deep sea to the seaquake was studied by performing the calibration chamber model tests for open-ended pipe piles, grouted piles under soil plug and close-ended piles installed in the simulated deep sea. For each case (a single pile, 2-pile and 4-pile groups), series of seaquake tests were performed. While, during the simulated seaquake, the compressive capacity of the single open-ended pile depended on pile penetration depth(=7m), were found to be stable. But, a single grouted pile with penetration depth of 13m kept "mobility" state, the one with penetration depth of 20m was stable and grouted pile groups with penetration depth of 7m were stable regardless of pile penetration depth. By grouting soil plug of open-ended piles and soil under the pile toe of open-ended pipe piles installed in the deep sea, failure of soil plugging was prevented. Thus, close-ended piles were more stable than open-ended pile against the seaquake motionake motion
 
Ű¿öµå
Seaquake;Open-ended pile group;Grouted pile group;Close-ended pile group;Static load test;Bearing capacity;Soil plug;Stability to seaquake;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.16, no.4, 2000³â, pp.31-42
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920441304)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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