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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.6, 2003³â, pp.107-114
ÇöÀåÀçÇϽÃÇèÀ» ÅëÇÑ ¼â¼®´ÙÁü¸»¶ÒÀÇ ÀÀ·ÂºÐ´ã¿¡ °üÇÑ ¿¬±¸
( A Study on the Stress Concentration of Crushed-stone Compaction Piles through Field Loading Test )
À̹ÎÈñ;ÃÖ¿ë±Ô;ÀÓÁ¾Ã¶;Ȳ±Ù¹è; ºÎ»ê´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;°æ¼º´ëÇб³ °Ç¼³¤ýȯ°æ°øÇкÎ;ºÎ»ê´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æ¼º´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
 
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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 ¼â¼®´ÙÁü¸»¶Ò¿¡ ´ëÇÑ Á¤ÀçÇϽÃÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, ¼â¼®´ÙÁü¸»¶Ò°ú ¿¬¾àÁö¹ÝÀÇ ÀÀ·ÂºÐ´ãºñ¸¦ ±Ô¸íÇÏ°í ¼º´ÉÀ» Æò°¡ÇÏ¿´´Ù. ÀÓÀÇ ¾Ð·Â¿¡¼­ ġȯÀ²ÀÌ Áõ°¡ÇÒ¼ö·Ï ħÇÏ·®ÀÌ ÀÛ¾ÆÁö´Â °æÇâÀ» º¸¿´´Ù. ġȯÀ² 20%ÀÏ ¶§ÀÇ Ç׺¹¾Ð·ÂÀº ġȯÀ² 30%, 40%ÀÏ ¶§ º¸´Ù ÀÛ¾Ò´Ù. ġȯÀ² 30%¿Í 40%ÀÏ ¶§ÀÇ Ç׺¹ÀÀ·Â°ú ħÇÏ·®Àº ºñ½ÁÇÏ¿´´Ù. ÀÀ·ÂºÐ´ãºñ´Â 1.7¡­-3.0ÀÇ ¹üÀ§¿¡ ÀÖ¾úÀ¸¸ç, ġȯÀ²ÀÌ Áõ°¡ÇÒ¼ö·Ï ÀÀ·ÂºÐ´ãºñ°¡ Áõ°¡ÇÏ´Â °æÇâÀ» º¸À̰í ÀÖ¾ú´Ù.
Among soft ground treatment methods with granular soil used in domestic, the sand compaction pile method has been utilized greatly, but, as a result of exhaustion of sand and increase of unit cost, the necessity of an alternative method is suggested. In this study, the static load tests for crushed-stone compaction piles which were constructed on test field were performed. Based on test results, stress concentration ratios between the crushed-stone compaction pile and the soft ground were investigated and estimated. At loading pressure, settlement showed decreasing tendency as replacement rate increases. At replacement rate of 20%, yield pressure was smaller but, at replacement rates of 30% and 40%, settlement and yield pressure were similar. The stress concentration ratio was within the range of 1.7 to 3.0 and it was higher as replacement rate increased.
 
Ű¿öµå
Crushed-stone compaction piles;Replacement ratio;Settlement;Stress concentration;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.6, 2003³â, pp.107-114
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922147905)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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