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Çѱ¹¼öÀÚ¿øÇÐȸ / v.37, no.9, 2004³â, pp.781-787
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90¡Æ ÇÕ·ùºÎ¸¦ Áö´Ñ ¼ö·Î¿¡¼ ±³°¢ À§Ä¡¿¡ µû¸¥ Çϻ󺯵¿
( The Variation of Channel Bed by Location of Pier near 90¡Æ Channel Junction ) |
| ÃÖ°è¿î;±è¿µ±Ô;±è±âÇü; ÀÎõ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ½Ã½ºÅÛ°øÇаú;ÀÎõ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ½Ã½ºÅÛ°øÇаú;ÀÎõ¹ßÀü¿¬±¸¿ø ȯ°æ»ýÅ¿¬±¸½Ç;
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| ÇÕ·ù¼ö·Î¿¡¼ÀÇ Çϻ󺯵¿¿¡ ´ëÇÏ¿© 90$^{circ}$ ÇÕ·ùºÎ°¡ ÀÖ´Â ¼ö·Î¸¦ ÀÌ¿ëÇÏ¿© À¯·®ºñ ¹× ±³°¢ À§Ä¡¸¦ º¯È½ÃŰ¸é¼ Çϻ󺯵¿À» Á¶»çÇÏ¿´´Ù. À¯·®ºñ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ħ½Ä ±íÀÌ ¹× ħ½Ä ÆøÀÌ Áõ°¡ÇÏ´Â °æÇâÀÌ ³ªÅ¸³µ´Ù. À¯·®ºñ°¡ 1£º0.5¿¡¼ Àüü¼ö·ÎÆøÀÇ 63%±îÁö ħ½ÄµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ÃÖ´ë ¼¼±¼½ÉÀº Áö·ùÀÇ ¿µÇâÀ¸·Î ÀÎÇÏ¿© °¡¼ÓÀ¯·Î¿¡¼´Â ÇÕ·ùÁ¡À¸·ÎºÎÅÍ ¼ö·Î ÆøÀÇ 0.5¹è µÇ´Â ÁöÁ¡¿¡¼ Á÷¼± ¼ö·Î¿¡¼ÀÇ ¼¼±¼½Éº¸´Ù 2.5¹è ÀÌ»ó Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù. À̰ÍÀº °¡¼ÓÀ¯·Î¿¡¼ ³ªÅ¸³ ÃÖ´ë ¼¼±¼½ÉÀÌ ±âÁ¸ÀÇ ¼¼±¼°ø½Ä¿¡ ÀÇÇÑ °á°úº¸´Ù 2¹è Á¤µµ Å©°Ô ³ªÅ¸³µ´Ù. µû¶ó¼, ÇÕ·ùºÎ¿¡ ±³°¢À» ¼³Ä¡ ÇÒ °æ¿ì À§Ä¡¼±Á¤¿¡ »ó´çÇÑ ÁÖÀǰ¡ ÇÊ¿äÇÏ´Ù°í ÆÇ´ÜµÈ´Ù. |
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| The variation of channel bed which shows the complex hydraulic characteristics at channel junction was investigated by variation of discharge ratio and location of pier. As discharge ratio increase, the depth and width of erosion region become bigger to point of 63% of channel width in case of 1:0.5 discharge ratio. It was observed that the maximum scour depth at the point of 0.5 times of the channel width in the channel junction as 2.5 times bigger than straight channel. It means that the maximum scour depth at the channel junction is 2 times greater than by experimental formulas which are widely used in practical engineering, location of pier should be determined when it is installed in channel junction. |
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| Ű¿öµå |
| ÇÕ·ùºÎ;ÇÏ»óº¯È;±³°¢¼¼±¼;ÃÖ´ë¼¼±¼½É;À¯·®ºñ;channel junction;variation of channel bed;pier scour;maximum scour depth;discharge ratio; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.37, no.9, 2004³â, pp.781-787
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200413842113231)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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