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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.9, 2011³â, pp.695-710
½ÇÃø ÀڷḦ ÀÌ¿ëÇÑ ±¹³»ÇÏõÀÇ Á¶µµ°è¼ö Ư¼º°ËÅä
( Review of Roughness Coefficient Characteristics for Rivers in Korea )
±èÁÖ¿µ;±èÇѼ·;ÀÌÁ¤±Ô; Çѱ¹Àü·Â±â¼úÁÖ½Äȸ»ç ȯ°æ±â¼ú±×·ì;ÇѾç´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ°øÇаú;ÇѾç´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ°øÇаú;
 
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±¹³» ÁÖ¿ä 3´ë ÇÏõÀÎ ÇѰ­, ³«µ¿°­, ±Ý°­¿¡ ´ëÇÏ¿© ÇÏ»óÀç·áÀÇ ÀÔµµºÐÆ÷¸¦ ÀÌ¿ëÇÏ´Â ¹æ¹ý°ú ¼öÄ¡¸ðÇüÀ» ÀÌ¿ëÇÏ´Â ¹æ¹ýÀ¸·Î Á¶µµ°è¼ö¸¦ ¿¬±¸ÇÏ¿´°í, ±âÁ¸ÀÇ ÇÏõÁ¤ºñ±âº»°èȹ¿¡¼­ Á¦½ÃÇϰí ÀÖ´Â Á¶µµ°è¼ö¿Í ºñ±³ °ËÅäÇÏ¿´´Ù. ÀϹÝÀûÀ¸·Î ÇÏõÀÇ È帧À» ÇØ¼®ÇÒ ¶§ ¼ö¸®ÇÐÀû ¸ðÇüÀ» ÁÖ·Î ÀÌ¿ëÇϰí ÀÖÀ¸¸ç, ƯÈ÷ 1Â÷¿ø È«¼öÀ§ °è»êÀ» À§ÇØ HEC-2, HEC-RAS, FLDWAV ¸ðÇü µîÀ» ÀÌ¿ëÇϰí ÀÖ´Ù. ÀÌµé ¼öÄ¡¸ðÇüÀ» ÀÌ¿ëÇÏ¿© Á¤È®ÇÑ È«¼öÀ§¸¦ °è»êÇϱâ À§Çؼ­´Â Á¤È®ÇÑ ÁöÇüÀÚ·á¿Í »ó ÇÏ·ù °æ°èÁ¶°Ç ±×¸®°í ÇØ¼®ÇϰíÀÚ ÇÏ´Â ÇÏõ ±¸°£¿¡ ´ëÀÀÇÏ´Â ÃÖÀûÀÇ Á¶µµ°è¼ö°¡ ÇÊ¿äÇÏ´Ù. À̵é Áß ÁöÇüÀÚ·á¿Í »ó ÇÏ·ù °æ°èÁ¶°ÇÀº ºñ±³Àû ¼Õ½±°Ô Á¤È®ÇÑ ÀÚ·áÀÇ È®º¸°¡ °¡´ÉÇϳª, Á¶µµ°è¼öÀÇ °æ¿ì ½Ç¹«¿¡¼­ ÀϹÝÀûÀ¸·Î »ç¿ëÇϰí ÀÖ´Â °ªÀº ÇØ¼®ÇϰíÀÚ ÇÏ´Â À§Ä¡¿Í À¯·®¿¡ °ü°è¾øÀÌ ±âÁ¸ ¹®Çå¿¡ Á¦½ÃµÈ ÀÏÁ¤ÇÑ °ªÀ» Àû¿ëÇϰųª, ÇÕ¸®¼ºÀÌ °á¿©µÈ ¹æ¹ýÀ¸·Î ÃßÁ¤ÇÑ °ªÀ» »ç¿ëÇÏ´Â µî ±× Á¤È®¼º ¹× °´°ü¼º¿¡¼­ ¹®Á¦Á¡ÀÌ ÀÖÀ» ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦Á¡À» ±Øº¹ÇϰíÀÚ ±¹³» 3´ë ÇÏõ¿¡ ´ëÇÏ¿© ´Ù¾çÇÑ À¯·®±¸°£°ú À§Ä¡¿¡ ´ëÀÀÇÏ´Â ÃÖÀûÈ­µÈ Á¶µµ°è¼ö¸¦ »êÁ¤ÇÏ°í ºñ±³ °ËÅäÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ Á¦¾ÈµÈ °á°ú´Â ¼ö¸®ÇÐÀû ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© È«¼öÃßÀûÀ» ¼öÇàÇϴµ¥ ÀÖ¾î Áß¿äÇÑ ±âÃÊÀÚ·á·Î »ç¿ëµÉ ¼ö ÀÖÀ» °ÍÀ̶ó ÆÇ´ÜµÈ´Ù.
Manning's roughness coefficients for the Han River, the Nakdong River and the Geum River were determined by the hydraulic models using their field measurements. The roughness coefficients of present study were compared with the ones of the conventional references. The hydraulic models, such as HEC-2, HEC-RAS and FLDWAV models, are usually applied to a river flow analysis. In order to compute the accurate flood level with the numerical models, accurate information about river sections, the upstream and downstream boundary conditions, and the appropriate roughness coefficients are indispensable. It is hard to obtain the reasonable roughness coefficient of the river, in the other hand the river cross sectional data and the boundary conditions are relatively easy to acquire. The coefficient values from the references are applied in many applications without considering the variation of locations and discharges of the river, or the values are unreasonably estimated. The final results from this study will give a reasonable and important data to perform the flood routing in the Korea river.
 
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Á¶µµ°è¼ö;¼ö¸®ÇÐÀû ¸ðÇü;È«¼öÃßÀû;ÃÖÀûÈ­;roughness coefficient;hydraulic model;flood routing;optimization;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.9, 2011³â, pp.695-710
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201129349656405)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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