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Çѱ¹¼öÀÚ¿øÇÐȸ / v.29, no.3, 1996³â, pp.177-186
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( Water Quality Impact Assessment Due to Dredging in the Downstream of the Nakdong River ) |
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| ³«µ¿° ÇÏ·ùºÎ¿¡¼ÀÇ ¿À´ÏÁؼ³¿¡ µû¸¥ ¼öÁú¿µÇâºÐ¼®À» À§Çؼ QUAL2E ¸ðÇü¿¡ ÀÇÇÑ ÇØ¼®À» ½Ç½ÃÇÏ¿´´Ù. ³²Áö¿¡¼ Çϱ¸¾ð ±¸°£¿¡ ´ëÇØ¼ ´Ù¾çÇÑ À¯·®Á¶°Ç¿¡ ´ëÇÑ ¼ö¸®ÇÐÀû ºÎµî·ù ÇØ¼®À» ½Ç½ÃÇÏ¿´´Ù. ÃÖÀûÀÇ ¹ÝÀÀ°è¼ö ÃßÁ¤À» À§Çؼ BFGS ±â¹ý¿¡ ÀÇÇÑ ÇØ¼®À» ½Ç½ÃÇÏ¿´°í, À̰ÍÀ» ±âÃÊ·Î ¸ðÇüÀÇ °ËÁõÀ» ½Ç½ÃÇÏ¿´´Ù. ³«µ¿° ÇÏ·ùºÎÀÇ ¿À´Ï Áؼ³¿¡ µû¸¥ ÁÖ¿ä ÁöÁ¡º° BOD ¹× DO¿¡ ´ëÇÑ ¼öÁú°³¼± È¿°ú¸¦ Àú¼ö·®, Æò¼ö·® ±×¸®°í ´ë¾ÈÁ¶°Ç¿¡ ´ëÇØ¼ ½Ç½ÃÇÏ°í ±× °á°ú¸¦ Á¦½ÃÇÏ¿´´Âµ¥ ÇÏ»óÇÏ¿À´ÏÀÇ Á¦°Å°¡ ¼öÁú°³¼±¿¡ ¹ÌÄ¡´Â È¿°ú´Â ºñ±³Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| QUAL2E model was applied to assess the water quality variations due to dredging of the bottom deposit in the downstream of the Nakdong River. A variedflow analysis was performed for the reach of Namji to Nakdong Estuary to estimate the hydraulic parameters. BFGS (Broyden-Fletcher-Goldfarb-Shanno) method was applied to determine the optimum reaction parameters and model verrification was performed based on these. Water quality modeling of dredging effects for BOD and DO in the reach was performed under low and average flow conditions and alternatives. It revealed that dredging had significant effedcts on the improvement of water quality in the reach. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.29, no.3, 1996³â, pp.177-186
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920097296)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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