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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.8, 2008³â, pp.773-784
¼±Çü ¹è¼ö·Î¿¡ ´ëÇÑ ºÎµî·ù ÇØ¼®
( Varied Flow Analysis for Linear Drainage Channels )
±¸ÇýÁø;Àü°æ¼ö; °í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.»çȸȯ°æ°øÇаú BK21»ç¾÷´Ü;¼º±Õ°ü´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;
 
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º» ¿¬±¸´Â ³ë¸é¹è¼ö½Ã¼³¿¡ ÀÌ¿ëµÉ ¼ö·Î ¾ç´Ü¿¡ À¯Ãⱸ¸¦ °¡Áö¸ç À¯·®ÀÌ ¿¬¼ÓÀûÀ¸·Î Áõ°¡ÇÏ´Â ¼±Çü ¹è¼ö·ÎÀÇ ºÎµî·ù È帧ÀÇ ÇØ¼® ¹æ¹ýÀ» Á¤¸³Çϱâ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. Áö¹è ¹æÁ¤½ÄÀ¸·Î¼­ À¯ÇÑ Â÷ºÐ ÇüÅÂÀÇ ´ë¼ö¹æÁ¤½ÄÀ» »ç¿ëÇÏ¿© Áö¹è´Ü¸é¿¡¼­ÀÇ ¼ö½É °ªÀ» °æ°èÁ¶°ÇÀ¸·Î Newton-Raphson ¹æ¹ý¿¡ ÀÇÇÏ¿© ¼ö¸é°î¼±À» °è»êÇÏ¿´´Ù. ÇÏ·ù´Ü¿¡ À¯Ãⱸ¸¦ °®´Â ¼ö·Î¿Í ¼ö·Î ¾ç´Ü¿¡ À¯Ãⱸ¸¦ °®´Â ¼ö·Î¸¦ °í·ÁÇϰí, ´Ù¾çÇÑ Á¾´Ü°æ»ç¿¡ ´ëÇÏ¿© È帧 ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. ´Ü, ¾ç´Ü¿¡ À¯Ãⱸ¸¦ °®´Â ¼ö·ÎÀÇ °æ¿ì ¾ç´ÜÀ» Áö¹è´Ü¸éÀ¸·Î ¸¸µå´Â ÀÓ°è Á¾´Ü°æ»ç¸¦ Á¶»çÇÏ¿© À̺¸´Ù ÀÛÀº Á¾´Ü°æ»ç¿¡ ´ëÇÑ È帧 ÇØ¼®À» ¼öÇàÇÏ¿´À¸¸ç, ÀÓ°è°æ»ç´Â Áö¹è´Ü¸éÀÇ À§Ä¡¿Í Á¾´Ü°æ»çÀÇ °ü°è·ÎºÎÅÍ °áÁ¤ÇÏ¿´´Ù. ÇÏ·ù´Ü¿¡ ÇϳªÀÇ À¯Ãⱸ¸¦ °®´Â ¼ö·ÎÀÇ °æ¿ì ¼ö·Î »ó¿¡ Á¸ÀçÇÏ´Â Áö¹è´Ü¸éÀÇ À§Ä¡¸¦ Á¶»çÇÏ¿© ±× ÁöÁ¡À» ±âÁØÀ¸·Î »ó·ù ¹× ÇÏ·ù ¹æÇâÀ¸·Î ¼ö½ÉÀ» °è»êÇÑ´Ù. ¹Ý¸é ¾ç´Ü¿¡ À¯Ãⱸ¸¦ °®´Â ¼ö·ÎÀÇ °æ¿ì Áö¹è´Ü¸éÀÌ ¼ö·Î ¾ç´ÜÀ̶ó¸é ºÐ¼ö°è¸¦ °¡Á¤ÇÏ¿© ºÐ¼ö°è¸¦ ±âÁ¡À¸·Î ±¸ºÐµÇ¾îÁö´Â »ó·ùÃø ¹× ÇÏ·ùÃø ¼ö·Î¿¡ ´ëÇÑ È帧 ÇØ¼®À» ¼öÇàÇϰí, »ó·ù´Ü¿¡¼­ ºÐ¼ö°è ¹æÇâÀ¸·Î ±×¸®°í ÇÏ·ù´Ü¿¡¼­ ºÐ¼ö°è ¹æÇâÀ¸·Î °è»êµÈ ºÐ¼ö°è ÁöÁ¡ÀÇ µÎ ¼ö½ÉÀÌ µ¿ÀÏÇÒ ¶§±îÁö È帧 °è»êÀ» ¹Ýº¹ÇÑ´Ù. È帧 °è»ê °á°ú ¾ç´Ü¿¡ À¯Ãⱸ¸¦ °®´Â ¼ö·Î°¡ ÀÓ°è°æ»çº¸´Ù Å« °æ»ç·Î ¼³Ä¡µÈ °æ¿ì¿¡´Â ÇÏ·ù´Ü¿¡ À¯Ãⱸ¸¦ °®´Â ¼ö·ÎÀÇ È帧 °Åµ¿°ú À¯»çÁö´Â °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. ³ë¸é¹è¼ö½Ã¼³ ¼³°èÀÇ Áß¿äÇÑ ¿ä¼ÒÀÎ ÃÖ´ë¼ö½ÉÀº Á¾´Ü°æ»ç°¡ ÀÛÀ» ¶§ µî·ù ÇØ¼®À¸·Î °è»êµÈ °ªÀÌ ºÎµî·ù ÇØ¼®º¸´Ù Å©°Ô »êÁ¤µÇ¾úÀ¸¸ç, ÀÌ´Â Á¾´Ü°æ»ç°¡ ÀÛÀ» ¶§ µî·ù ÇØ¼®À» ±â¹ÝÀ¸·Î ÇѼ³°è°¡ °ú´ë¼³°è°¡ µÇ±â ½±´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù.
The present study was carried out to examine flow properties in linear drainage channels such as road surface drainage facilities. The finite difference formulation for the varied flow analysis was solved for flow profiles in the channels. Starting the first step at the control section, the Newton-Raphson method was applied for producing numerical solutions of the equation. We considered two types of linear drainage channels, a channel with one outlet at downstream end and a channel with two outlets at both ends. Moreover, the flow analysis for various channel slopes was performed. However, we considered channels with the two outlets of slopes satisfying the condition that the both ends are the control section. The maximum of those slopes was decided from the relation between the channel slope and the location of control section. The flow of a channel with one outlet was calculated upward and downward from the control section existing in channel or upward from the control section at downstream end. The flow of a channel with two outlets at both ends were calculated for upstream and downstream channel segments divided by the water dividend, respectively and the flow analysis was completed when the water depth at the water dividend calculated from upstream end was equal to that calculated from downstream end. If the slope was larger than the critical slope, the channel with two outlets was likely to behave like the channel with one outlet. The maximum water depth was investigated and compared with that calculated additionally from the uniform flow analysis. The uniform flow analysis was likely to lead a excessive design of a drainage channel with mild slope.
 
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³ë¸é¹è¼ö;ºÎµî·ù;ºÐ¼ö°è;¼±Çü ¹è¼ö·Î;Áö¹è´Ü¸é;Á¾´Ü°æ»ç;road surface drainage;varied flow;water dividend;linear drainage channel;control section;channel slope;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.8, 2008³â, pp.773-784
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200825457811875)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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