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Çѱ¹¼öÀÚ¿øÇÐȸ / v.30, no.2, 1997³â, pp.177-177
µµ½ÃÀ¯¿ª¿¡¼­ÀÇ °­¿ì °ø°£ºÐÆ÷ ¹× ¼ÒÀ¯¿ªºÐÇÒÀÌ À¯ÃâÆ¯¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( The Effect on the Characteristics of Urban Storm Runoff due to the Space Allocation of Design Rainfall and the Partition of the Subbasin )
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º» ³í¹®Àº µµ½ÃÀ¯¿ª¿¡¼­ÀÇ °­¿ì-À¯ÃâÀ» ÇØ¼®Çϱâ À§ÇÑ ¼³°èÁ¶°ÇÀ¸·Î¼­ °­¿ì °ø°£ºÐÆ÷¿Í ¼ÒÀ¯¿ªÀÇ ºÐÇÒÀÌ °á°úÄ¡¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» 9°³ µµ½ÃÀ¯¿ª¿¡ ´ëÇÏ¿© SWMMÀ¸·Î Æò°¡ÇÑ °ÍÀÌ´Ù. µµ½ÃÀ¯¿ªÀ» »ó·ù 2°³ ±Ç¿ªÀ¸·Î ±¸ºÐÇÏ´Â °¢°¢ HuffÀÇ 4°³ ºÐÆ÷ÇüÀ» Á¶ÇÕÇÏ¿© Àû¿ëÇÑ °á°ú´Â ±âÁ¸ÀÇ Huff2 ºÐÆ÷·Î ±ÕÀÏÇÏ°Ô Àû¿ëÇÑ °æ¿ìº¸´Ù ÷µÎÀ¯·®¿¡¼­ -54.68¡­18.77% ÀÇ ÆíÂ÷¸¦ º¸¿©ÁÖ¾ú´Ù. µû¶ó¼­ ¼³°èÈ«¼ö·®»êÁ¤¿¡¼­´Â °ø°£ºÐÆ÷ÀÇ °í·Á´Â È«¼öÀ§ÇèµµÀÇ °æ°¨¿¡ ±â¿©ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ¶ÇÇÑ ¼ÒÀ¯¿ªÀÇ ºÐÇÒ¿¡ µû¸¥ À¯ÃâÆ¯¼ºÀÇ ¿µÇâÀº À¯¿ªÀÇ °æ»ç, ºÒÅõ¼ö¸éÀûºñ µî¿¡ µû¶ó ´Ù¸£°Ô ³ªÅ¸³ª³ª Àü¹ÝÀûÀ¸·Î ºÐÇÒ ¼ö°¡ ¸¹À»¼ö·Ï ½ÇÃøÄ¡¿¡ Á¢±ÙÇÔÀ» º¸¿©ÁÖ¾ú´Ù. ±×·¯³ª, ¿Ö°îµµ¿Í ¸éÀûºñ¸¦ °í·ÁÇÑ ¼ÒÀ¯¿ª ÆøÀÇ »êÁ¤¹æ¹ýÀ» Àû¿ëÇÔÀ¸·Î½á À¯¿ªºÐÇÒ ¼ö°¡ Àû¾îµµ Á¤È®µµÀÇ °³¼±¿¡ »ó´çÇÑ ±â¿©¸¦ ±â´ëÇÒ ¼ö ÀÖ¾ú´Ù. À¯¿ª¸éÀûÀÌ ¾à 10§´À̳»ÀÎ µµ½ÃÀ¯¿ª¿¡¼­´Â ¼ÒÀ¯¿ª ºÐÇÒ ¼ö°¡ 3°³ ÀÌ»óÀÌ¸é ¾à 25% À̳»¿¡¼­ ½ÇÃøÄ¡¿¡ ±Ù»çÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
The influences of the space allocation of design rainfall and partition of the subbasin on the characteristics of urban storm runoff was investigated for the 6 drainage basins by applying SWMM model. It show the deviation of -54.68¡­18.77% in the peak discharge when we applied the composed JUFF quantiles to the two zones which are divided by upper and lower region of the basin. Then it is compared with the value for the case of using uniform rainfall distribution all over the drainage. Therefore, it would be helpful to decrease the flood risk when we adopt the space distribution of the design rainfall. The effects of the partitioning the drainage on the computing result shows various responses because of the surface characteristics of the each basin such as slope, imperviousness ratio, buy we can get closer result to the measured value as we make the subbasin detailed. If we use the concept of the skewness and area ratio when we determine the width of subbasin, we can improve the computed result even with fewer number of subbasins. We expect reasonable results which close into the measured results in the range of relative error, 25%, when we divide the basin into more than 3 subbasins and the total urban drainage area is less than 10§´.
 
Ű¿öµå
urban storm runoff;design rainfall;allocation of rainfall;partition of subbasin;area ratio;
 
Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.30, no.2, 1997³â, pp.177-177
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199710102421178)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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