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Çѱ¹¼öÀÚ¿øÇÐȸ / v.26, no.4, 1993³â, pp.107-115
±³°¢ÀÇ ¼¼±¼¿¡ ¹ÌÄ¡´Â Armouring È¿°ú
( Armouring Effect on Local Scour around Bridge Piers )
ÀÌÁ¾±Ô; Á¤È¸¿ø, ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸´Â 3°¡Áö ±³°¢Çü»ó¿¡ ´ëÇÏ¿© ±¹ºÎÀû Á¤Áö»ó¼¼±¼¿¡ ´ëÇÑ ¼ö¸®½ÇÇè°á°ú¸¦ ºÐ¼®ÇÑ °ÍÀÌ´Ù. ½ÇÇè°á°ú¿¡ ÀÇÇÏ¸é ±¹ºÎÀû »ó´ë¼¼±¼½ÉÀº ±³°¢Çü»ç, ÇÏ»óÀÔ°æÀÇ ±âÇÏÇ¥ÁØÆíÂ÷, À¯¼Óºñ, ±³°¢ Ǫ¸£µå¼ö¿Í °ü°è°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±³°¢ÀÇ »ó´ë¼¼±¼½ÉÀº ¹Ý¿ø»ç°¢Çü±³°¢¿¡¼­ °¡Àå ÀÛ°í ÇÏ»óÀç·á°¡ ±ÕÀÏÇÒ ¶§ º¸´Ù ºÒ±ÕÀÏÇÒ ¶§ ÇöÀúÇÏ°Ô ÀÛ°Ô ³ªÅ¸³µ´Ù. ÀÔµµÀÇ ºÒ±ÕÀϼºÀ¸·Î ÀÎÇÑ ¼¼±¼°¨¼ÒÈ¿°ú´Â Raudkivi¿Í EttemaÀÇ ¿¬±¸°á°ú¿Í ºñ±³ °ËÅäÇÏ¿´´Ù.
The results of laboratory experiments on the clear-water local scour of cohesionless bed sediment at three types of the pier shape are presented. Based on the experimental data, the relative equilibrium depth of local scour is related to the pier shape, the geometric standard deviation of the bed material, the velocity ratio and the pier Froude number. The relative local scour depths were smallest ant the round-nosed pier and remarkably reduced at the non-uniform bed sediment, comparing with those at the uniform bed material. The effect of sediment grading on the local scour reduction was discussed and compared with Raudkivi and Ettema's experiments.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.26, no.4, 1993³â, pp.107-115
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920094702)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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