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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.6, 2006³â, pp.503-510
°­º¯¿©°ú ´ë¼öÃþÀÇ Åõ¼ö·®°è¼ö ÃßÁ¤À» À§ÇÑ ¿ªÇؼ®
( Back-Analysis for Estimating Transmissivity in Riverbank Filtration )
¹Ú¼­È­;ÀÌ»óÀÏ;ÀÌ»ó½Å; µ¿±¹´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;µ¿±¹´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;µ¿±¹´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;
 
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°­º¯¿©°ú´Â ¿ø¼ö¸¦ °­º¯ÀÇ ´ë¼öÃþ¿¡ Åë°ú½ÃÄÑ ÁöÃþÀÇ ÀÚü Á¤È­´É·ÂÀ» ÀÌ¿ëÇÏ¿© ¿ø¼ö ÁßÀÇ ¿À¿°¹°ÁúÀ» »ó´ç·® Àú°¨ÇÑ ÈÄ »ó¼ö¸¦ °ø±ÞÇÏ´Â ¹æ½ÄÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â ÁöÁúÁ¤¼ö¸¦ ÃßÁ¤ÇÏ´Â ¹æ¹ý Áß ÇϳªÀÎ ¿ªÇؼ®À» ÀÌ¿ëÇÏ¿© °­º¯¿©°ú Áö¿ªÀÇ Åõ¼ö·®°è¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. ¿ªÇؼ®À̶õ ÇöÀå¿¡¼­ Á÷Á¢ ÃøÁ¤ÇÑ °ª°ú ÇÁ·Î±×·¥À» ÅëÇØ °è»êµÈ °ªÀÇ Â÷¸¦ ¸ñÀûÇÔ¼ö·Î µÎ°í À̸¦ ÃÖ¼Ò·Î Çϵµ·Ï ¹ÌÁöÀÇ ¸Å°³º¯¼ö¸¦ °áÁ¤ÇÏ´Â °ÍÀÌ´Ù. ÃÖÀûÈ­ ±â¹ýÀ¸·Î BFGS(Broyden-Fletcher-Goldfarb-Shanno)¸¦ ÀÌ¿ëÇÏ¿´°í, Á¤Çؼ®À» À§Çؼ­´Â ÁöÇϼöÈ帧À» 2Â÷¿øÀûÀ¸·Î ¸ðÀÇÇÒ ¼ö ÀÖ´Â MOCÀ» »ç¿ëÇÏ¿© ¿ªÇؼ® ÇÁ·Î±×·¥À» °³¹ßÇÏ¿´´Ù. ÇÁ·Î±×·¥ÀÇ Àû¿ë¼ºÀ» °ËÁõÇϱâ À§ÇØ ½ÇÁ¦ °­º¯¿©°ú¸¦ Çϰí ÀÖ´Â °æ³² â¿ø½Ã ´ë»ê¸éÀÇ °üÃø ÁöÇϼöÀ§¸¦ ÀÌ¿ëÇÏ¿© ±× Áö¿ªÀÇ Åõ¼ö·®°è¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. °³¹ßµÈ ÇÁ·Î±×·¥Àº »óÀÌÇÑ ÁöÇϼöÀ§ Á¶°Ç¿¡¼­ÀÇ ¿ªÇؼ®¿¡¼­µµ ÁÁÀº ¼ö·Å¼ºÀ» º¸¿´À¸¸ç, »ó¿ë ¿ª»ê¸ðµ¨°úÀÇ ºñ±³¿¡¼­µµ ¿ì¿ùÇÑ °á°ú¸¦ ³ªÅ¸³Â´Ù.
Riverbank filtration is a natural process, using alluvial aquifers to remove contaminants and pathogens in river water for the production of drinking water. Back analysis which minimizes the objective function that is typically the sum of squares of the differences between the calculated and measured quantities is used for the estimation of aquifer parameters. In this study, transmissivity is back-analysed using the BFGS (Broyden-Fletcher-Goldfarb-Shanno) scheme for optimization. MOC is used to obtain calculated groundwater level. The developed inverse model was applied to Dae-san, Chang-won city where riverbank filtration is being undertaken. The model showed good convergence behavior for different groundwater conditions. The performance of the model was better than a widely-used commercial software package in terms of error between calculated and observed groundwater level.
 
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¿ªÇؼ®;°­º¯¿©°ú;Åõ¼ö·®°è¼ö;back-analysis;riverbank filtration;transmissivity;MOC;BFGS;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.6, 2006³â, pp.503-510
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200629734263537)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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