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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.12, 2007³â, pp.5-11
´ÜÀϼ⼮¸»¶ÒÀÇ ÁöÁö·Â Áõ°¡È¿°ú¿¡ °üÇÑ ÇöÀå½ÇÇè ¿¬±¸
( A Study of Field Test on Bearing Capacity Increase Effect of Single Stone Column )
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±¹³»¿¡¼­´Â Á¶¸³Å並 ÀÌ¿ëÇÑ ¿¬¾àÁö¹Ý 󸮰ø¹ý Áß ¸ð·¡´ÙÁü¸»¶Ò°ø¹ýÀÌ ¸¹ÀÌ È°¿ëµÇ°í ÀÖÀ¸³ª, ¸ð·¡ÀÚ¿øÀÇ °í°¥°ú ´Ü°¡»ó½ÂÀ¸·Î ÀÎÇØ Àû¿ëÀÌ Á¦Çѵǰí ÀÖ¾î ´ëü°ø¹ýÀÌ ÇÊ¿äÇÑ ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â À°»óºÎ ÇöÀå¿¡ ½ÃÇè½Ã°øµÈ ´ÜÀϼ⼮´ÙÁü¸»¶Ò¿¡ ´ëÇÑ Á¤ÀçÇϽÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÃÇè½Ã ¸»¶ÒÀÇ Á÷°æÀ» 700mm·Î °íÁ¤Çϱ¸ ÀçÇÏÆÇÀÇ ¸éÀûÀ» º¯È­½ÃÄ×À¸¸ç, ġȯÀ² 20, 30, 40%¿¡ ´ëÇÏ¿© Á¤ÀçÇϽÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ±× °á°ú¸¦ Åä´ë·Î ÇÏ¿© ´ÜÀϼ⼮´ÙÁü¸»¶ÒÀÇ ÁöÁö·Â Áõ°¡È¿°ú¸¦ Æò°¡ÇÏ¿´´Ù. ġȯÀ²ÀÌ Áõ°¡ÇÒ¼ö·Ï ħÇÏ·®ÀÌ ÀÛ¾ÆÁö´Â °æÇâÀ» º¸¿´´Ù. ¶ÇÇÑ, ġȯÀ²ÀÌ °í·ÁµÈ ´ÜÀϼ⼮´ÙÁü¸»¶ÒÀÇ Ç׺¹ÁöÁö·Â °ø½ÄÀ» Á¦¾ÈÇÏ¿´´Ù.
Among soft ground improvement methods by using granular material, the sand compaction pile method has been widely utilized in Korea, but, as a result of shortage and increase of unit price of sand, a necessity of an alternative method has been required. In this study, a series of in-situ static load tests for crushed-stone compaction piles were performed. Pile diameter was fixed to 700mm and areas of loading plates were changed. The static load tests were performed for area replacement ratios of 20, 30 and 40% respectively. Based on the test results, bearing capacity of single crushed-stone compaction pile was estimated. It showed that the settlement decreases as the replacement ratio increases. Also, a yielding capacity equation of the crushed-stone compaction pile considering replacement ratio was suggested.
 
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Crushed-stone compaction piles;Replacement ratio;Settlement;Static load test;Yielding capacity equation;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.12, 2007³â, pp.5-11
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414473739)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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