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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.4, 2000³â, pp.385-392
ºÒ±ÕÀϴܸ鱳°¢ ÁÖÀ§ÀÇ »ç¼® ¼¼±¼ º¸È£°ø
( Riprap Scour Countermeasures around Nonuniform Bridge Piers )
À±ÅÂÈÆ;¹Ú±âµÎ; ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
 
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±³°¢°ú ±âÃÊ·Î ±¸¼ºµÇ´Â ºÒ±ÕÀϴܸ鱳°¢ ÁÖÀ§ÀÇ »ç¼®º¸È£°øÀÇ °Åµ¿¿¡ °ü·ÃµÈ ÀÎÀÚµéÀÇ ¿µÇâ¿¡ °üÇÑ ½ÇÇè°á°ú°¡ ±â¼úµÈ´Ù. ºÒ±ÕÀϴܸ鱳°¢Àº ±³°¢ÀÇ Àü ±æÀÌ¿¡ ´ëÇÑ ´Ü¸éÀÌ ÀÏÁ¤ÇÏÁö ¾Ê°í Á÷°æ bpÀÇ ¿øÁÖ°¡ º¸´Ù Å« Á÷°æ bfÀÎ ±âÃÊ¿¡ ¼³Ä¡µÈ ±¸Á¶ÀÌ´Ù. »ç¼®º¸È£°øÀÇ ¾ÈÁ¤Àº ±âÃÊÀÇ ³ôÀÌ¿¡ µû¶ó Å©°Ô ¿µÇâÀ» ¹ÞÀ¸¸ç ÇѰè±âÃʳôÀÌ, Zc°¡ Á¸ÀçÇÔÀÌ ¹àÇôÁ³´Ù. ÇѰè±âÃʳôÀÌ´Â ±ÕÀϴܸ鱳°¢ÀÇ ÇѰèÀ¯¼Ó°ú °°Àº ÇѰèÀ¯¼ÓÀ» °®´Â ºÒ±ÕÀϴܸ鱳°¢ÀÇ ±âÃʳôÀÌ·Î Á¤ÀÇµÇ°í ½ÇÇè°á°ú Zc=0.8bf·Î ¹àÇôÁø´Ù. ±âÃʳôÀ̰¡ Zcº¸´Ù ÀÛÀ¸¸é ±âÃÊÀÇ »ó·ù¿¬ÀåÀ¸·Î ÀÛ¿ëÇÏ¿© »ç¼®º¸È£°øÀº ´õ ¾ÈÁ¤ÇÏ°Ô µÇ°í, ±âÃʳôÀ̰¡ Zcº¸´Ù Å©°Ô µÇ¸é ±âÃÊ´Â ´Ü¸éÀÌ Áõ´ëµÈ ±³°¢À¸·Î ÀÛ¿ëÇÏ°í ±âÃÊ ÀÚüÀÇ Çϰ­·ù·Î ÀÎÇÏ¿© »ç¼®º¸È£°øÀº ºÒ¾ÈÁ¤ÇÏ°Ô µÇ¾î ½±°Ô ¿òÁ÷ÀÌ°Ô µÈ´Ù. ±âÃÊ»ó´Ü¸éÀûÀÇ ¿µÇâ°ú ºÒ±ÕÀϴܸ鱳°¢ÀÇ »ç¼®º¸È£°øÀÇ Å©±â °áÁ¤¹æ¹ýÀÌ ¶ÇÇÑ ±â¼úµÈ´Ù.
An experimental investigation was conducted to determine the effect of a nonuniform pier on the stability of riprap placed around bridge piers. A nonuniform pier is one of which the cross-sectional dimension varies over the length of the pier and comprises a cylinder of diameter bp placed on a larger diameter of foundation bf. and the stability of riprap are significantly influenced by the height of foundation z. The critical height of foundation is defined as the height of foundation which has the same critical velocity to that of uniform pier without foundation, and it was found to be zc=0.8bf. For z
 
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¼¼±¼;ºÒ±ÕÀϴܸ鱳°¢;±âÃÊ;»ç¼®;Ç×°è±âÃʳôÀÌ;scour countermeasures;nonuniform piers;footing;riprap;critical;foundation height;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.4, 2000³â, pp.385-392
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063755)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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