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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.4, 2005³â, pp.135-143
ÁýÁß°­¿ì½Ã ¹ß»ýÇÑ ºí·Ï½Ä º¸°­Åä ¿Ëº®ÀÇ ºØ±«»ç·Ê
( Geosynthetic Reinforced Segmental Retaining Wall Failure Buying Heavy Rainfall - A Case Study )
À¯Ãæ½Ä;ÀüÇÑ¿ë;Á¤Çý¿µ;Á¤Çõ»ó; ¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;ÀÎÇÏ´ëÇб³ ³ª³ë½Ã½ºÅÛ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;(ÁÖ)´ëÁ¤ÄÁ¼³ÅÏÆ®;
 
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º» ³í¹®¿¡¼­´Â ½Ã°ø Á÷ÈÄ ÁýÁßÈ£¿ì ±â°£µ¿¾È ¹ß»ýÇÑ º¸°­Åä ¿Ëº®ÀÇ ºØ±«»ç·Ê¸¦ ´Ù·ç¾ú´Ù. ºØ±« ¿øÀÎÀ» ÆÄ¾ÇÇϱâ À§ÇØ ÇöÀå´ä»ç¸¦ ½Ç½ÃÇÏ¿© ¿Ëº®ÀÇ Á¦¿ø ¹× °¢Á¾ ½Ã·á¸¦ äÃëÇÏ¿´À¸¸ç µÚä¿òÈë¿¡ ´ëÇÑ °øÇÐÀû Æò°¡, ¼³°è±âÁØ¿¡ ±Ù°ÅÇÑ ¾ÈÁ¤¼º °ËÅ並 ¼öÇàÇÏ¿´´Ù. ¶ÇÇÑ, Áö¼ÓÀûÀ¸·Î ³»¸° °­¿ì¿Í ¿Ëº®ÀÇ ºØ±« ¿¬°ü¼ºÀ» °ËÅäÇϱâ À§ÇØ ºÒÆ÷È­Åä °³³äÀÇ Ä§ÅõÇØ¼®À» ¼öÇàÇϰí À̸¦ Åä´ë·Î »ç¸é¾ÈÁ¤Çؼ®À» ¼öÇàÇÏ¿´´Ù. ¿¬±¸°á°ú ¿Ëº®ÀÇ ºØ±«´Â ºÎÀûÀýÇÑ µÚä¿òÈë ¹× ¼³°è, Àå±â°­¿ì µîÀÇ º¹ÇÕÀûÀÎ ¿øÀο¡ ±âÀÎÇÏ´Â °ÍÀ¸·Î °ËÅä µÇ¾ú´Ù. º» ³í¹®¿¡¼­´Â ¿Ëº®ÀÇ ¼³°è ¹× ½Ã°ø, °¢Á¾ Á¶»ç °á°ú¸¦ Á¦½ÃÇÏ¿´À¸¸ç À̵éÀ» Á¾ÇÕÇÏ¿© ½Ç¹«Àû Ãø¸é¿¡¼­ÀÇ ÁßÁ¡ °í·Á»çÇ×À» ´Ù·ç¾ú´Ù.
This paper presents a case history of a geosynthetics-reinforced segmental retaining wall, which collapsed during a severe rainfall immediately after the completion of the wall construction. In an attempt to identify possible causes for the collapse, a comprehensive investigation was carried out including physical and strength tests on the backfill, stability analyses on the as-built design based on the current design approaches, and slope stability analyses with pore pressure consideration. The investigation revealed that the inappropriate as-built design and the bad-quality backfill were mainly responsible for the collapse. This paper describes the site condition including wall design, details of the results of investigation and finally, lessons learned. Practical significance of the findings from this study is also discussed.
 
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Geosynthetics-reinforced segmental retaining wall;Matric suction;Seepage analysis;Slope stability analysis;Unsaturated flow;Unsaturated shear strength;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.4, 2005³â, pp.135-143
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200502637461236)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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