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Çѱ¹¼öÀÚ¿øÇÐȸ / v.30, no.5, 1997³â, pp.477-485
±³·®¿¡¼­ÀÇ ¼¼±¼±íÀÌ »êÁ¤ ¹× »êÁ¤Ä¡¿Í ½ÇÃøÄ¡ÀÇ ºñ±³ºÐ¼®
( Estimation of Scour Depth at Bridnges and Comparative Analysis between Estimated and Measured Scour Depths )
À±¿ë³²;ÀÌÀç¼ö;È£Á¤¼®; °í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;ÀüÁÖ´ëÇб³ Åä¸ñȯ°æ°øÇаú °í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;;
 
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ÃÖ±Ù¿¡ ±¹³»¿ÜÀûÀ¸·Î ¹ß»ýÇÑ ±³°¢°ú ±³´ë¿¡¼­ÀÇ ¼¼±¼·Î ÀÎÇÑ ±³·®ÀÇ ºØ±«´Â º¸´Ù ³ªÀº ¼¼±¼±íÀÌ »êÁ¤¹æ¹ý¿¡ ´ëÇÑ Çʿ伺À» °­Á¶Çϰí ÀÖ´Ù. º» ³í¹®¿¡¼­´Â ¹Ì±¹ ¿¬¹æ°í¼Óµµ·Î±¹¿¡¼­ ¹ß°£ÇÑ HEC-18¿¡¼­ Á¦½ÃÇÏ´Â ÀýÂ÷¸¦ ¹ÙÅÁÀ¸·Î 1Â÷¿ø ¸ðÇüÀÎ WSPRO ¸ðÇü°ú HEC-2 ¸ðÇü, ±×¸®°í 2Â÷¿ø ¸ðÇüÀÎ TABS-MD ¸ðÇüÀ» »ç¿ëÇÏ¿© ³²ÇѰ­¿¡ À§Ä¡Çϰí ÀÖ´Â ³²ÇѰ­±³¿¡ ´ëÇÑ ¼ö¸®ºÐ¼®À» ºñ±³ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­´Â ¶ÇÇÑ 1Â÷¿ø ¹× 2Â÷¿ø ¸ðÇüÀ¸·ÎºÎÅÍ ±¸ÇÑ ¼ö¸®·®À» »ç¿ëÇÏ¿© »êÁ¤ÇÑ ¼¼±¼±íÀ̸¦ ºñ±³ÇÏ¿´´Ù. ÀÌ¿Í µ¿½Ã¿¡ È«¼ö¸¦ ÀüÈÄÇÏ¿© À½ÇâÃø½É±âÀÎ Fathometer(DE-719C)¸¦ »ç¿ëÇÏ¿© ÇöÀå½ÇÃøÀ» ¼öÇàÇÏ¿´´Ù. ±³·®¿¡¼­ÀÇ ¿¹ÃøÇÑ ¼¼±¼±íÀÌ¿Í ÃøÁ¤µÈ ¼¼±¼±íÀ̸¦ ¶ÇÇÑ ºñ±³ÇÏ¿´´Ù. º» ¿¬±¸ÀÇ °á°ú ½ÇÇè½Ç°ú ÇöÀåÁ¶°Ç»çÀÌÀÇ Â÷ÀÌ ¶§¹®¿¡ »êÁ¤µÈ ¼¼±¼±íÀÌ¿Í ½ÇÃøµÈ ¼¼±¼±íÀÌ °£¿¡´Â ¸¹Àº Â÷À̸¦ º¸À̰í ÀÖ´Ù. ¶ÇÇÑ µÇ¸Þ¿òÇö»ó ¶§¹®¿¡ ÃÖ´ë¼¼±¼±íÀ̸¦ Á¤È®È÷ ÃøÁ¤ÇϱⰡ ¾î·Æ´Ù. µû¶ó¼­ ÷µÎ È«¼ö½Ã »ç¿ëÇÒ ¼ö ÀÖ´Â ¼¼±¼ÃøÁ¤ÀåºñÀÇ °³¹ß°ú ±¹³» ÇÏõ¿¡ ÀûÇÕÇÑ °æÇè½ÄÀ» °³¹ßÇÏ´Â °ÍÀÌ ½Ã±ÞÇÏ´Ù°í º»´Ù.
Recent internal and external bridge failures due to pier and abutment scour have emphasized the need for better methods of scour depth estimation. This paper compares the hydraulic analysis of the Namhan River Bridge over the Namhan River using one-dimensional models. WSPRO & HEC-2, and the two-dimensional model. TABS-MD based on the procedures presented in HEC-18 published by the U.S. FEdral Highway Administration. A comparison of estimated scour depth for this research based on the results from both one-dimensional and two-dimensional model is presented. At the same time, field measurement has been performed before and after flood using sounding instrument. Fathometer (DE-719C). A comparison between estimated and measured scour depth at bridge is also presented. Result shows that there is all the difference between estimated and measured scour depth due to dissimilarity between laboratory and field conditions. Also, it is difficult to measure the maximum scour depth accurately due to refilling. Therefore development of scour measuring equipment which can be used during peak flood, and derivation of empirical model appropriate for internal river system seems urgent.
 
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.30, no.5, 1997³â, pp.477-485
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920100441)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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