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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.5, 2009³â, pp.425-432
°ø¸ª2º¸ ö°Å¿¡ µû¸¥ ÇÏõÇüÅÂÇÐÀû º¯È­
( Change in Stream Morphology after Gongneung Weir 2 Removal )
ÃÖ¼º¿í;ÀÌÇýÀº;À±º´¸¸;¿ìÈ¿¼·; ¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏõ.ÇØ¾ÈÇ׸¸¿¬±¸½Ç, ¿¬¼¼´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏõ.ÇØ¾ÈÇ׸¸¿¬±¸½Ç;
 
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°ø¸ª2º¸´Â ³ó¾÷¿ë¼öÀÇ °ø±ÞÀ» À§ÇÏ¿© 1970³â´ë¿¡ ¼³Ä¡µÇ¾ú´Ù. ±×·¯³ª Àα٠Áö¿ªÀÇ ÅäÁö ÀÌ¿ëÀÇ º¯È­·Î ¿ëµµ¸¦ ´ÙÇÏ¿© »ç¿ëµÇÁö ¾Ê°í ¹æÄ¡µÇ¾î ÀÖ¾ú´Ù. °ø¸ª2º¸´Â ³ôÀÌ 1.5 mÀÇ ¼ÒÇü º¸ À̸ç, °ø¸ªÃµÀÇ ÇÏ»óÀç·á´Â °¡´Â ¸ð·¡¿¡¼­ °¡´Â ÀÚ°¥·Î ±¸¼ºµÇ¾îÀÖ´Ù. ÁöÀÚü¿Í Áö¿ª Áֹεé°úÀÇ ÇùÀǸ¦ ÅëÇÏ¿© °ø¸ª2º¸´Â 2006³â 4¿ù 14ÀÏ ¿ÏÀüÈ÷ ö°ÅµÇ¾ú´Ù. º» ³í¹®¿¡¼­´Â °ø¸ª2º¸ ö°Å¿¡ µû¸¥ ÇÏõÇüÅÂÇÐÀûÀÎ º¯È­¸¦ Á¶»çÇϱâ À§ÇÑ ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. º¸ ö°Å Àü ÈÄÀÇ ÇÏ»óÀç·áÀÇ ÀÔµµºÐÆ÷, Á¾´Ü ÇÏ»ó°í, ±×¸®°í ´Ü¸éÇüÀÇ º¯È­°¡ °íÂûµÇ¾ú´Ù. º¸¸¦ Æ÷ÇÔÇÑ 1 km ±¸°£¿¡¼­ ¼ø ÅðÀû·®ÀÌ »êÁ¤µÇ¾úÀ¸¸ç, °á°ú·ÎºÎÅÍ ÆòÇüÇÏ»óÀ» À¯µµÇÏ´Â À¯»çÀ̵¿ °úÁ¤ÀÌ ÃÊ¹Ý 45Àϵ¿¾È ¹«Ã´ ºü¸£°Ô ÁøÇàµÇ¾úÀ½À» º¸¿´´Ù.
Gongneung Weir 2 was built in 1970s to supply water for irrigation. For a long time, the weir was left uncared because of the land use change of the nearby area. The weir is 1.5 m high, and the stream in which the weir was installed has bed materials of fine sands to fine gravels. In 2006, the local government and residents agreed on uninstalling the weir, and the weir was removed completely on April 14. This paper reports the results of three field investigations for the study of the stream morphology change after the weir removal. Changes in grain size distribution, bed elevation, and cross section before and after the weir removal are provided and discussed. Net amount of sediment deposits within 1 km reach of the stream is estimated, and the results illustrates that the sediment process, leading to an equilibrium of the bed, progressed very swiftly, namely within 45 days.
 
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º¸ ö°Å;ÇÏõÇüÅÂÇÐ;À¯»çÀ̵¿;ÆòÇüÇÏ»ó;weir removal;morphology;sediment transport;equilibrium bed;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.5, 2009³â, pp.425-432
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200916041585824)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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