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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.4, 2009³â, pp.319-329
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È«¼öÁ¶Àý´ï¿¡¼ÀÇ ¹è»ç°ü ¼³Ä¡¿¡ µû¸¥ »ó·ù ÇÏõÀÇ Çϻ󺯵¿¿¡ °üÇÑ ¼öÄ¡¸ðÀÇ ¿¬±¸
( Numerical Analysis for Bed Changes in the Upstream Channel due to the Installation of Sediment Release Openings in the Flood Control Dam ) |
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| È«¼öÇÇÇØ¸¦ °æ°¨½Ã۰í È«¼öÁ¶ÀýÀ» ¸ñÀûÀ¸·Î °èȹµÇ´Â È«¼öÁ¶Àý¿ë´ïÀÇ °æ¿ì È«¼ö ¹ß»ý ±â°£ ¿Ü¿¡´Â »ó·ù¿Í ÇÏ·ù ÇÏõ°£ÀÇ È帧 Â÷´ÜÀ» ¾ïÁ¦ÇÏ°í »ó·ù·ÎºÎÅÍ À¯ÀԵǴ À¯»ç°¡ ´ï »ó·ù ºÎºÐ¿¡ ÅðÀûµÇ´Â Çö»óÀ» ¹æÁöÇϱâ À§ÇØ ´ï¿¡ »ó½Ã °³¹æµÇ¾î ÀÖ´Â ¹è»ç°üÀ» ¼³Ä¡Çϱ⵵ ÇÑ´Ù. ±¹³»¿¡¼´Â ÀÓÁø° À¯¿ªÀÇ È«¼öÇÇÇØ Àú°¨À» À§ÇØ °Ç¼³µÇ´Â ÇÑź°È«¼öÁ¶Àý´ï¿¡ ¹è»ç°ü°ú »ýÅÂÅë·Î¸¦ ¼³Ä¡Çϵµ·Ï °èȹµÇ¾ú´Ù. º» ¿¬±¸¿¡¼´Â 1Â÷¿ø HEC-6 ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ÇÑź°È«¼öÁ¶Àý´ï °Ç¼³·Î ÀÎÇÑ ´ï »ó·ùÀÇ Åð»çÇö»óÀ» ´ï °Ç¼³ ÀüÀÇ Çö»ó°ú ºñ±³ ºÐ¼®ÇÏ¿´À¸¸ç ¿¬Æò±ÕÀ¯·® Á¶°Ç»Ó¸¸ ¾Æ´Ï¶ó ¿¬°£ À¯·®º¯µ¿À» °í·ÁÇÑ ´ëÇ¥À¯·®¼ö¹®°î¼±À» Àû¿ëÇÏ¿© Åð»çÇö»óÀ» ¸ðÀÇÇÏ¿´´Ù. ¼öÄ¡¸ðÀÇ °á°ú, ´ï °Ç¼³·Î ÀÎÇÑ ÇÏ·ù´Ü ¼öÀ§ º¯È°¡ ¹ß»ýÇÏ´õ¶óµµ Çϻ󺯵¿ÀÇ ¿µÇâÀº ´ï¿¡¼ »ó·ù 2 km ±¸°£À» ³ÑÁö ¾Ê´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ´ï °Ç¼³ ÈÄ ¹è»ç°üÀÇ ¼³Ä¡ À¯¹«¿¡ µû¸¥ ¹è»ç°ü ÁÖº¯°ú ´ï »ó·ù ÇÏ»ó º¯È¸¦ ¿¹ÃøÇϱâ À§ÇØ 2Â÷¿ø RMA2 ¹× SED2D ¸ðÇüÀ» ÀÌ¿ëÇÏ¿´À¸¸ç ÇÑź°È«¼öÁ¶Àý¿ë´ïÀÇ ´ï ÀúºÎ¿¡ ¼³Ä¡µÈ ¹è»ç°üÀÇ ¹è»çÈ¿°ú´Â Àú¼öÁö ³»ÀÇ ÅðÀû°í¸¦ Àú°¨½ÃŰ´Â È¿°ú°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| Sediment release openings or pipes are installed in the flood control dam constructed to reduce flood damages, which are to allow water and sediments pass through the dam and to prevent flow blockage and sedimentation in the upstream area of the dam. The Hantan River Flood Control Dam (HRFCD) has been projected for flood damage reduction and sediment release openings and ecological passages are considered for the dam design. In this study, sediment deposition due to the construction of HRFCD was analyzed using the HEC-6 model and compared with the state before the dam construction with respect to the conditions of the annual mean daily discharge and annual discharge hydrograph. According to the numerical results, although downstream water levels were changed by the dam structure, the effects of bed changes were not propagated from the dam over 2 km upstream. Also, 2D numerical models of RMA2 and SED2D were used to predict bed changes in the upstream area with and without sediment release openings. Consequently, it is presented that sediment release openings decreased maximum deposition height in the upstream channel of the dam. |
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| Ű¿öµå |
| ¼öÄ¡¸ðÀÇ;À¯»ç ÅðÀû;¹è»ç±¸;Çϻ󺯵¿;È«¼öÁ¶Àý´ï;numerical modeling;sedimentation;sediment release openings;channel bed changes;flood control dam; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.4, 2009³â, pp.319-329
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912840746077)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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