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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.6, 2001³â, pp.641-649
±º¸»¶Ò ÁÖº¯ÀÇ ±¹ºÎ¼¼±¼¿¡ °üÇÑ ¿¬±¸
( An Experimental Study on Local Scour Around Group Pile Foundation )
À±º´¸¸;¼­Á¤ÇÊ;³ë¿µ½Å; ¸íÁö´ëÇб³ SOC °øÇкΠÅä¸ñ°øÇаú;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú ¼®»ç ¼ö·á;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ±º¸»¶Ò ±³°¢ ÁÖÀ§¿¡¼­ÀÇ ¼¼±¼Æ¯¼ºÀ» ½ÇÇèÀ» ÅëÇÏ¿© ÆÄ¾ÇÇÏ¿´´Ù. ½ÇÇèÀº 4°³, 9°³, 15°³, 35°³ÀÇ ÆÄÀÏ·Î ±¸¼ºµÈ ±º¸»¶Ò¿¡ ´ëÇØ ¼öÇàÇÏ¿© ÆÄÀϼö, À¯¼Ó, Á¢±Ù°¢¿¡ µû¸¥ ¼¼±¼Çü»ó, ÃÖ´ë¼¼±¼½ÉÀÇ ±íÀÌ ¹× À§Ä¡ÀÇ º¯È­¸¦ »ìÆìº¸¾Ò´Ù. ½ÇÇè°á°ú¿¡ ÀÇÇϸé, 4°³ ¹× 9°³·Î ±¸¼ºµÈ ±º¸»¶ÒÀÇ °æ¿ì À¯¼Óºñ¿Í »ó°ü¾øÀÌ ´ÜÀϱ³°¢ÀÇ ÃÖ´ë¼¼±¼½É°ú Èí»çÇÏ¿´°í, 15°³¿Í 35°³·Î ±¸¼ºµÈ ±º¸»¶ÒÀÇ °æ¿ì À¯¼Óºñ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ÃÖ´ë¼¼±¼½Éµµ ±Þ°ÝÈ÷ Áõ°¡ÇÏ¿© ´ÜÀϱ³°¢ ¼¼±¼½É ÀÇ ¾à 2.2¹è Áõ°¡ÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ¼¼±¼ÇüÅ´ ¸»¶Ò°£°ÝÀÌ Á¶¹ÐÇØÁú¼ö·Ï ¿øÇüÀÇ ¼¼±¼°øÀÌ ÁßøµÇ¾î ÀüüÀûÀ¸·Î Á÷»ç°¢ÇüÀÇ ÇüŸ¦ ¶ì´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. 75°³ÀÇ ÆÄÀÏ·Î ±¸¼ºµÈ ±º¸»¶Ò¿¡ ´ëÇÑ Á¢±Ù°¢ÀÇ ¿µÇâÀ» »ìÆìº» °á°ú ¼¼±¼½ÉÀº Á¢±Ù°¢ÀÌ 35$^{circ}$¿¡¼­ ÃÖ´ë°¡ µÇ¾úÀ¸¸ç À̶§ÀÇ ¼¼±¼°øÀº ´ë°¢¼± ¹æÇâÀ¸·Î Çü¼ºµÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
This study analyzed the general scour characteristics around group pile foundations through laboratory experiments. The experiments were performed for the pile groups consisting of 4, 9, 15 and 35 piles to investigate the effects of pile number, mean velocity and the angle of attack on the scour hole shape, and the magnitude and the position of maximum scour depth. Results reveal that the maximum scour depth for 4 and 9 piles have almost same values with single pier case regardless of approach velocity. The scour depth for 15 and 35 piles, however, increases as the mean velocity increases and reaches up to 2.2 times of maximum scour depth for single pier case. As the number of piles increase, the single scour holes are superposed and the overall scour hole turned out to be rectangular shape. The experimental results for the case of 35 piles indicate that the scour depth has the maximum value at angle of attack of 35 degree and that the main scour hole is formed in diagonal direction.
 
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¼¼±¼;±º¹°¶Ò;ÃÖ´ë¼¼±¼½É;È帧 Á¢±Ù°¢;scour;group pile;maximum scour depth;angle of attack;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.6, 2001³â, pp.641-649
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920877700)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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