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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.4, 2008³â, pp.395-404
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ÇØÆòÃë¼öÀå ºÎ±Ù¿¡¼ ÃæÀûÇÏõÀÇ Àú¼ö·Î À̵¿ Ư¼º
( Lateral Migration Features of the Alluvial Channels in Hapyeong Intake Station, Nakdong River ) |
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ÃæÀûÇÏõÀÇ º¹ÀâÇÏ°í ´Ù¾çÇÑ À̵¿Æ¯¼ºÀ» ÆÄ¾ÇÇϰí ÀÌÇØÇÏ´Â °ÍÀº ÇÏõ°øÇÐÀûÀ¸·Î ¸Å¿ì Áß¿äÇϸç, º» ¿¬±¸¿¡¼´Â Àú¼ö·ÎÀÇ À̵¿ ¹× ÇÏ»óÀúÇÏ·Î ÀÎÇÏ¿© Ãë¼ö¹®Á¦°¡ ÀÖ´Â °æ»óºÏµµ ±¸¹Ì½Ã¿¡ À§Ä¡ÇÑ ÇØÆòÃë¼öÀå ÁÖº¯¿¡ ´ëÇÏ¿© Ç×°ø»çÁø ºÐ¼®À» ÅëÇÏ¿©, ½Ã°£¿¡ µû¸¥ ÇÏõÀÇ ÁöÇüº¯È, Àú¼ö·ÎÀÇ À̵¿ Ư¼ºÀ» Á¶»çÇÏ°í ºÐ¼®ÇÏ¿´´Ù. Àú¼ö·Î´Â Á¾ȿ¡¼ ¿ì¾ÈÀ¸·Î À̵¿ÇØ °¡°í ÀÖÀ¸¸ç, Àú¼ö·Î´Â °ÅÎÀ¯·®¿¡ ´ëÇÏ¿© º¹·Ä»çÁÖ°¡ ¹ß´ÞÇϴ Ư¼ºÀ» º¸¿©ÁÖ°í ÀÖ´Ù. ÀÌ´Â ÇÏõÀÇ °æ»ç°¡ ±ÞÇϰí ÇÏÆøÀÌ ³Ð°í ¼ö½ÉÀÌ ¾èÀº °÷¿¡¼ ¹ß»ýÇÏ´Â Çö»óÀ¸·Î¼, Àú¼ö·ÎÀÇ ºÒ¾ÈÁ¤¼ºÀÌ Áõ°¡Çϱ⠶§¹®ÀÌ´Ù. ¶ÇÇÑ Àú¼ö·ÎÀÇ »çÇ൵°¡ °¨¼ÒÇÏ¸é¼ Àú¼ö·Î ÆøÀÌ Áõ°¡ÇÏ´Â °ÍÀº Á¦ÇÑµÈ ¹üÀ§ ¾È¿¡¼ Àú¼ö·ÎÀÇ ºÐ·ù¿Í ÇÕ·ù°¡ Ȱ¹ßÇÏ°Ô ¹ß»ýÇÏ´Â °ÍÀ» ÀǹÌÇÑ´Ù. ½Ã°£ÀÇ Áõ°¡¿¡ µû¶ó Àú¼ö·Î ÇÏÆøÀÇ Áõ°¡À²°ú Ãø¹æÇâ À̵¿À²Àº °¨¼ÒÇϰí ÀÖ´Ù. °ÅÎÀ¯·®À» ÀÌ¿ëÇÏ¿© Á߱Ը𠿵¿ª±¸ºÐÀ» ¼öÇàÇÑ °á°ú, º¹·Ä»çÁÖ°¡ ¹ß´ÞÇÏ´Â ÇÏõÀÇ Æ¯¼ºÀ» º¸¿©ÁÖ¾úÀ¸¸ç, ¸ð·¡ÇÏõÀ¸·Î¼ ºÎÀ¯»ç°¡ Áö¹èÀûÀÎ ÇÏõÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. |
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It is important to understand the complex, various migration features of the alluvial channels for river engineering. In this study, the morphological changes and migration features of alluvial channels were investigated by analyzing the aerial photographs of active channels between 1972 and 2004 in Hapyeong Intake Station, Nakdong river. The lower channels were migrated from left bank to right bank and showed the features of braided channel in 2004. The instability of lower channels was increased due to the increased channel slope and width. The sinuosity of lower channels was decreased with time. As time increased, the increasing rate of lower channel and lateral migration rate were decreased. As a result of meso-scale regime analysis by using bankfull discharge, multiple row bars were developed, and suspended sediment load was governed in the flow as a sand bed channel. |
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Ű¿öµå |
ÃæÀûÇÏõ;Àú¼ö·Î À̵¿;»çÇ൵;ÇØÆòÃë¼öÀå;Alluvial channel;channel migration;sinuosity;Hapyeong Intake; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.4, 2008³â, pp.395-404
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814264574479)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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