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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.7, 2011³â, pp.591-599
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( The Time of Concentration Considering the Rainfall Intensity )
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µµ´Þ½Ã°£ »êÁ¤½Ä¿¡¼­ °­¿ì°­µµ´Â °í·ÁµÇ¾î¾ß ÇÒ ¸Å¿ì Áß¿äÇÑ ¿ä¼ÒÀÌÁö¸¸ ÀϹÝÀûÀ¸·Î °­¿ì°­µµ½ÄÀÇ º¹ÀâÇÔ ¶§¹®¿¡ µµ´Þ½Ã°£ »êÁ¤¿¡¼­ °­¿ì°­µµ¸¦ ÃæºÐÈ÷ °í·ÁÇÏÁö ¸øÇϰí ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â µµ´Þ½Ã°£ °è»êÀÇ Á¤È®¼ºÀ» ³ôÀ̱â À§ÇÏ¿© °­¿ì°­µµ¿Í ÀçÇö±â°£À» µµ´Þ½Ã°£ »êÁ¤½ÄÀÇ À¯µµ¿¡ Æ÷ÇÔ½ÃÄ×´Ù. °­¿ì°­µµ½ÄÀ¸·Î´Â ShermanÇü ½ÄÀ» »ç¿ëÇÏ¿´°í, °Ç¼³±³ÅëºÎ¿¡¼­ ¹ßÇàÇÑ È®·ü°­¿ì·®µµ¿¡¼­ µ¶ÃëÇÑ °­¿ì°­µµ °ªÀ¸·Î ¼ö½ÄÀÇ Áö¿ª»ó¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. ±×¸®°í È®·ü°­¿ì·®À» °£°áÇÏ°Ô °è»êÇϱâ À§ÇÏ¿© ShermanÇü ½ÄÀÇ Áö¿ª»ó¼ö¸¦ µîÄ¡¼±µµ·Î ³ªÅ¸³Â´Ù. ±âÁ¸ÀÇ ¿¬±¸¿¡¼­´Â ÀϹÝÇü °­¿ì°­µµ½ÄÀ» ´ëÀÔÇÏ¿© ¹Ýº¹°è»êÀ¸·Î µµ´Þ½Ã°£À» »êÁ¤ÇÏ¿´Áö¸¸, º» ¿¬±¸¿¡¼­´Â ShermanÇü °­¿ì°­µµ½ÄÀ» µµ´Þ½Ã°£ ¼ö½Ä¿¡ ´ëÀÔÇÔÀ¸·Î½á ¹Ýº¹°è»êÀÌ ÇÊ¿ä ¾ø´Â °£´ÜÇÑ µµ´Þ½Ã°£ ½ÄÀÌ À¯µµµÇ¾ú´Ù. ¿¬±¸ °á°ú·ÎºÎÅÍ, µµ´Þ½Ã°£ °è»ê¿¡ °­¿ì°­µµÀÇ ¿µÇâÀ» ¹Ý¿µÇϱâ À§ÇÏ¿© ShermanÇü ½ÄÀÇ »ç¿ëÀ» ÃßõÇÑ´Ù. ±×¸®°í ÀçÇö±â°£°ú ¿ì¸®³ª¶ó¿¡¼­ À§Ä¡°¡ Á¤ÇØÁö¸é, °­¿ì°­µµ½ÄÀÇ Áö¿ª»ó¼ö¸¦ °£ÆíÇÏ°Ô ÃßÁ¤ÇÒ ¼ö ÀÖ°í, °­¿ì°­µµ°¡ °í·ÁµÈ µµ´Þ½Ã°£À» °è»êÇÒ ¼ö ÀÖ´Ù.
The rainfall intensity is a very essential factor which must be considered for the estimation of the time of concentration. The rainfall intensity, however, is not fully considered for the estimation of the time of concentration due to the complexity of the equation of rainfall intensity. To increase accuracy of the time of concentration, the rainfall intensity and return period were included in the derivation of the time of concentration equations in this study. The equation of rainfall intensity is Sherman type and the regional coefficients were estimated from the rainfall intensity readings on the probability rainfall maps published by Ministry of Construction and Transportation. For simple calculation of rainfall intensities, the contour maps were drawn that expresses coefficients of the Sherman type equation. By substituting the Sherman type equation of rainfall intensity in the equation of the time of concentration, a relatively simple equation with no repeated calculation has been derived. From the study results, in order to include the influence of the rainfall intensity for the estimation of the time of concentration, it is highly recommended that the Sherman type equation of rainfall intensity be used. When one knows a location in Korea and a return period, he can estimate the coefficients of the rainfall intensity equation and calculate the time of concentration considering the rainfall intensity.
 
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µµ´Þ½Ã°£;°­¿ì°­µµ;ÀçÇö±â°£;ShermanÇü ½Ä;Áö¿ª»ó¼ö;Time of concentration;Rainfall intensity;Return period;Sherman type equation;Regional coefficient;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.7, 2011³â, pp.591-599
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201123163434097)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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