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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.7, 2004³â, pp.107-117
Åä¸ñ¼¶À¯·Î º¸°­µÈ ¾èÀº±âÃÊ ¸ð·¡Áö¹ÝÀÇ ÁöÁö·Â
( Bearing Capacity of Shallow Foundation on Geosynthetic Reinforced Sand )
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´À½¼ÇÑ ¸ð·¡Áö¹Ý¿¡¼­ º¸°­Àç Ãþ¼ö Áõ°¡¿Í º¸°­ÀçÀÇ °­¼º°ú ÇüÅ º¯È­ ±×¸®°í ¾èÀº ±âÃÊ Á÷ÇÏ¿¡ ¸Å¼³µÈ ¿¬¼º°üÀÇ ±íÀÌ µîÀÇ º¯È­°¡ ÁöÁö·Â-ħÇÏ °î¼±¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸±â À§ÇØ ÀÏ·ÃÀÇ ¸ðÇü½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÃÇè°á°ú, ¹«º¸°­Åä °æ¿ì´Â ÆÄ±«ÇüŰ¡ ±¹ºÎÀü´ÜÀ¸·Î ³ªÅ¸³µÀ¸³ª º¸°­Àç Ãþ¼ö°¡ 2Ãþ ÀÌ»óÀÌ µÇ¸é ÆÄ±«ÇüÅ´ ±¹ºÎÀü´Ü¿¡¼­ Àü¹ÝÀü´ÜÀ¸·Î ¹Ù²î°í, ÃÖÀûº¸°­Àç Ãþ¼ö´Â 2Ãþ À̸ç, ÁöÁö·Â °³¼±¿¡ À־´Â º¸°­ÀçÀÇ ÃʱⰭ¼º°ú ÇüŰ¡ ÃÖ´ëÀÎ Àå°­µµº¸´Ù Áß¿äÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¹«º¸°­Åä¿¡¼­ ±âÃÊ Á÷ÇÏ¿¡ ¿¬¼º°üÀÌ ¸Å¼³µÈ °æ¿ì, ¿¬¼º°üÀÇ ¸Å¼³ ±íÀ̰¡ ±âÃÊ Æøº¸´Ù ¾èÀ¸¸é ÁöÁö·Â°ú ±ØÇÑÁöÁö·ÂÀº ÇöÀúÇÏ°Ô °¨¼ÒÇϰí, º¸°­ÅäÀÇ °æ¿ì ¿¬¼º°üÀÇ ¸Å¼³ ±íÀ̰¡ ±âÃÊ Æøº¸´Ù ¾èÀ¸¸é ÆÄ±«ÇüÅ´ Àü¹ÝÀü´Ü¿¡¼­ ±¹ºÎÀü´ÜÀ¸·Î ¹Ù²î´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
A series of model tests were conducted to investigate how the number of reinforcement layers, stiffnesses, types of reinforcement material and buried depth of a flexible pipe can affect bearing capacity-settlement curve at a loose sand foundation. In the test results, whereas the type of failure in unreinforced sand was local shear, the type of failure, for model tests with more than 2 reinforcement layers in loose sand, was general shear: The number of the optimum reinforcement layers was found to be two: Stiffness and type of reinforcement were more important than the maximum tensile strength of reinforcement in improving bearing capacity. When the depth of buried pipe from the sand surface was less than the width of the footing, test results showed that both bearing capacity and ultimate bearing capacity of buried pipe in unreinforced sand significantly decreased, and the type of failure in the reinforced sand changed from general shear to local shear.
 
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Bearing capacity;Flexible pipe;Geosynthetic;Reinforced sand;Shallow foundation;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.7, 2004³â, pp.107-117
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200425720311091)
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