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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.6, 2003³â, pp.325-334
¼Õ»óµÈ Èë´ï ÄÚ¾îÀÇ º¸¼ö.º¸°­À» À§ÇÑ CGS °ø¹ýÀÇ Àû¿ë¼º
( Applicability of CGS for Remediation and Reinforcement of Damaged Earth Dam Core )
õº´½Ä;ÃÖÁß±Ù; ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
 
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´ïü ÄÚ¾îºÎ¿¡ ¹ß»ýÇÑ ¼ö¾ÐÆÄ¼â¿Í ÀÌ·Î ÀÎÇÑ À¯·ÎÀÇ ¹ß´Þ ¹× ´©¼ö·® Áõ´ë µîÀÇ ¹®Á¦Á¡À» ±¸Á¶ÀûÀ¸·Î Â÷´ÜÇÏ¿© ´ïÀÇ ¾ÈÁ¤¼ºÀ» È®º¸Çϰí, Àå±âÀûÀ¸·Î ´ïÀ» À¯Áö°ü¸® ¿î¿µÇÏ´Â µ¥¿¡ ¹®Á¦Á¡ÀÌ ¾øµµ·Ï ´ï ÄÚ¾îºÎ¸¦ º¸¼ö.º¸°­ÇÑ´Ù´Â °ÍÀº ½¬¿î ÀÏÀÌ ¾Æ´Ï´Ù. º» ¿¬±¸¿¡¼­´Â ¼Õ»óµÈ Èë´ï ÄÚ¾îÀÇ º¸¼ö.º¸°­À» À§ÇÑ CGS °ø¹ý(Compaction Grouting System)ÀÇ Àû¿ë¼ºÀ» õ°ø°ú ÁÖÀÔ°úÁ¤¿¡ ´ëÇÑ °íÂû°ú ±× °á°ú¿¡ ´ëÇÏ¿© °ËÅäÇϰí, ÇöÀå¿¡¼­ÀÇ °èÃøÄ¡¿Í FEM ÇØ¼® °á°úÀÇ ºñ±³.°ËÅ並 ÅëÇÏ¿© È®ÀÎÇÏ¿´´Ù. ÇöÀå °èÃø °á°ú, °øÁ¤ÀÌ ÁøÇàµÇ¸é¼­ ¼±´Ü ¾Ð·ÂÀº Áõ°¡Çϰí ÁÖÀÔ·®Àº °¨¼ÒµÊ¿¡ µû¶ó ´À½¼ÇÑ ´ï ÄÚ¾îÀÇ °ø±ØÀÌ Ã¤¿öÁø °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç µ¿ÀÏ ¼öÀ§¿¡ ´ëÇÏ¿© ´©¼ö·® ¹× ʵµ´Â º¸°­ ÈÄÀÇ ´©¼ö·®°ú ʵµ°¡ ¸ðµÎ °¨¼ÒÇÏ¿´À¸¸ç, FEM ÇØ¼® °á°ú ¿ª½Ã º¸°­À¸·Î ÀÎÇÏ¿© Åõ¼ö°è¼ö°¡ °¨¼ÒÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ CGS °ø¹ýÀ» ÅëÇÏ¿© ±âÁ¸ ´ï ÄÚ¾îÀç·á Ư¼ºÀÇ º¯È­¸¦ ÃÖ¼ÒÈ­Çϸ鼭 ´À½¼ÇÑ °ø±ØÀ» ä¿ö Åõ¼ö°è¼ö¿Í ´©¼ö·®À» °¨¼Ò½ÃÄѼ­ ´ï ÄÚ¾îÀÇ Â÷¼ö¼ºÀ» Çâ»ó½Ãų ¼ö ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù.
It is very difficult to rehabilitate the damaged earth dam core to manage it stably against development of flow path and increase of leakage by hydraulic fracture. In this study, application of CGS (Compaction Grouting System) to damaged earth dam core was noticed by analyzing and comparing the results of the in-situ data and FEM. Results of in-situ data showed that according as progress of rehabilitation works tip pressures increased and volume of injection decreased, voids of damaged dam core were filled with materials similar to origin dam core. Rehabilitations caused turbidity and volume of leakage to decrease at the same water level. Also, results of FEM analysis indicated that permeability decreased by rehabilitation. Through this study, it is proved that CGS is able to decrease permeability coefficient, volume of leakage and turbidity on damaged earth dam core.
 
Ű¿öµå
CGS;Damaged earth dam core;FEM analysis;Permeability;Rehabilitation;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.6, 2003³â, pp.325-334
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922148098)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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