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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.1, 1999³â, pp.41-47
¿ì¸®³ª¶ó Áß.¼Ò ÇÏõÀÇ ¼¼±¼Æ¯¼º Á¶»ç¿¬±¸(1)
( Fied Investigation of Bridge Scours in Small and Medium Streams(1) )
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ÇöÀç ±¹³»¿¡¼­´Â ¸Å³â Æò±Õ 100¿©°³ÀÇ ±³·®ÀÌ ºØ±«µÇ°Å³ª ½É°¢ÇÑ ÇÇÇØ¸¦ ÀÔ°í ÀÖ´Ù. À̵éÀÇ ´ëºÎºÐÀº È«¼ö½Ã ±âÃÊÁö¹ÝÀÌ À¯½ÇµÊÀ¸·Î½á ¹ß»ýµÇ¸ç ´Ù¶ó¼­ ¼¼±¼¿¡ ÀÇÇÑ ÇÇÇØ¸¦ ÁÙÀ̱â À§ÇÏ¿©´Â ¿ì¼± ÀÌ¿¡ ´ëÇÑ ±âÃÊÀû ¿¬±¸¿Í ÇÔ²² ±³·®¼³°è½Ã ¿¹»óµÇ´Â ¼¼±¼±íÀ̸¦ Á¤È®È÷ »êÁ¤Çϰí À̸¦ ¼³°è¿¡ ÇÕ¸®ÀûÀ¸·Î ¹Ý¿µ½ÃŰ´Â °ÍÀÌ ÇÊ¿äÇÏ´Ù. ±×·¯³ª ¼¼±¼ÀÌ ¹ß»ýµÇ´Â ¹°¸®Àû Çö»óÀº ¸¹Àº ÀÎÀÚµéÀÌ ¼­·Î º¹ÀâÇÏ°Ô ¿¬°èµÇ¾î ÇØ¼®Çϱ⿡ ½±Áö ¾ÊÀ¸¸ç ½ÇÃøµÈ ÀÚ·á ¶ÇÇÑ Ã£¾Æº¸±â Èûµé´Ù. º» ¿¬±¸¿¡¼­´Â Á» ´õ ÇÕ¸®ÀûÀÎ ¼³°è¿Í ¼¼±¼¿¡ ´ëÇÑ ±âÃÊÀûÀÎ ÀڷḦ Á¦°øÇϱâ À§ÇÏ¿© ±³°¢¼¼±¼¿¡ ´ëÇØ ÇöÀå½ÇÃøÀ» ¼öÇàÇÏ¿´´Ù. ½ÇÃø´ë»óÀº ÁÖ·Î Á¢±ÙÇϱ⠽¬¿î Áß¡¤¼ÒÇÏõÀ» ´ë»óÀ¸·Î ÇÏ¿´À¸¸ç ¼¼±¼±íÀÌ, ±³°¢Æø ¹× ±æÀÌ, ¼ö½É, À¯¼Ó ¹× À¯·®, Á¢±Ù°¢ µî ¼¼±¼¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¹°¸®·®µéÀ» °üÃøÇϰí ÃøÁ¤ÇÏ¿´´Ù. À̵é ÀÚ·á·ÎºÎÅÍ ÇöÀçÀÇ ±¹³» ¼¼±¼ÇöȲÀ» ÆÄ¾ÇÇÒ ¼ö ÀÖ¾úÀ¸¸ç ±³·®ÀÇ ¾ÈÁ¤¼º¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ÀÎÀڵ鿡 ´ëÇÑ ºÐ¼®À» ÇàÇÏ¿´´Ù.
More than 100 bridges in Korea have been annually collapsed or badly damaged by the scouring around bridge piers, particularly in the flood season. To prevent from such a tragedy, the fundamental study on the bridge scouring is required, which is essential not only to estimate the scour depth with reliability but to take it into consideration in its design. However, it is not easy to find out the physical scour mechanism since many factors on the scour are coupled with. Moreover, there exists none of the measured data sufficiently for the primary research on the bridge scour depths. In this study the field measurements are carried out to provide the fundamental data for the research and the design. Scouring depth, pier width, flow depth, and the approaching velocity and degree of pier nose are measured broadly in small and medium streams. From these measurements the present situation on bridge scours can be understood and some of important factors to affect the stability of bridges are analyzed.
 
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±³·®¼¼±¼;¼¼±¼±íÀÌ;ÇöÀåÁ¶»ç;bridge scour;scour depth;field measurements;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.1, 1999³â, pp.41-47
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920062950)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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