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Çѱ¹¼öÀÚ¿øÇÐȸ / v.29, no.3, 1996³â, pp.143-152
Ô´ã¼ùÁô¹ ÜÝËÏÏ¡Êà³» ÎéÊÅÀ¸·Î ÀÎÇÑ ÛÎâ©ç¯úÂÀÇ ãùúÐîÜ æÚϼ
( An Experimental Study of Backwater Effects Caused by Piers in the Covered Reach of Urban Streams )
À±¿ë³²;¾ÈÀçÇö;±èÁø°ü; °í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;µÎ»ê¿£Áö´Ï¾î¸µ ¼öÀÚ¿øºÎ;Çѱ¹Á¾ÇÕ±â¼ú°³¹ß°ø»ç ¼öÀÚ¿øºÎ;
 
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µµ½ÃÇÏõÀÇ º¹°³±¸°£³» È帧ÀÇ ¼ö¸®´Â º¹°³½½¶óºê¸¦ ÁöÁöÇÏ´Â ¸»¶Ò±º ÁÖÀ§¿¡ ¹ß»ýÇÏ´Â °ú·ùÀÇ Áßø ¹× °£¼·È¿°ú ¶§¹®¿¡ ´ë´ÜÈ÷ º¹ÀâÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â ¸»¶Ò±ºÀÇ ¿©·¯ °¡Áö ¹èÄ¡¿¡ µû¸¥ ¹è¼öÀ§ »ó½ÂÈ¿°ú¸¦ Á¤·®ÀûÀ¸·Î »êÁ¤Çϱâ À§ÇÑ ¹æ¹ýÀ» Á¦¾ÈÇϱâ À§ÇØ ±¤¹üÀ§ÇÑ ½ÇÇèÀû ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ¹è¼öÀ§ »ó½ÂÀ» Áö¹èÇÏ´Â ÀÎÀڷδ ¸»¶Ò±ºÀ¸·Î ÀÎÇÑ È帧´Ü¸éÀÇ Ãà¼ÒÀ²°ú È帧ÀÇ Froude ¼ö, È帧 ¹æÇâÀ¸·ÎÀÇ ¸»¶Ò±º °£°Ý, º¹°³±¸°£ÀÇ ÃѱæÀÌ µîÀ¸·Î ¹àÇôÁ³´Ù. È帧¹æÇâ¿¡ Á÷°¢ÀÎ ¹æÇâÀ¸·Î ±³°¢À» ¼³Ä¡ÇÑ °æ¿ì ´Ü¸é Ãà¼ÒÀ²°ú È帧ÀÇ Froude¼ö°¡ ¹è¼öÀ§ »ó½Â¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´À¸¸ç ¹è¼öÀ§ »ó½Â·®ÀÇ »êÁ¤À» À§ÇÑ ´ÙÁßȸ±ÍºÐ¼®½ÄÀ» µµÃâÇÏ¿´´Ù. È帧ÀÇ È¾¹æÇâ ¹× Á¾¹æÇ×À¸·Î ¹èÄ¡½ÃŲ ¸»¶Ò±ºÀÌ ¹è¼öÀ§ »ó½Â¿¡ ¹ÌÄ¡´Â ¿µÇâµµ ´Ü¸é Ãà¼ÒÀ², È帧ÀÇ Froude ¼ö, È帧¹æÇâÀÇ ¸»¶Ò°£ °£°Ý ¹× º¹°³±¸°£ÀÇ ÃѱæÀÌ µîÀÇ Ç×À¸·Î ºÐ¼®ÇÏ¿´À¸¸ç, ½ÇÇèÀÚ·áÀÇ ´ÙÁßȸ±ÍºÐ¼®¿¡ ÀÇÇØ ÀÌµé ¿µÇâÀÎÀÚ¸¦ »ç¿ëÇÏ¿© ¹è¼öÀ§ »ó½Â·üÀ» »êÁ¤ÇÒ ¼ö ÀÖ´Â °æÇè½ÄÀ» µµÃâ, Á¦¾ÈÇÏ¿´´Ù.
The hydraulics of flow within the covered reach of urban streams is very complicated due to the accumulation and interference effect of eddies around the multiple piers supporting the covering slab. An extensive experimental study is done to quantitatively estimate the backwater rise effect caused by various arrays of multiple piers. The factors governing the backwater rise are found out to be the contraction ratio due to the piers, Froude number of the flow, longitudinal pier spacing, and the length of the covered reach. For a single section of lateral pier arrays the effect of contraction ratio and Froude number on the backwater rise is analyzed and a multiple regression equation is derived. The effect of multiple piers, arrayed in both lateral and longitudinal directions, on the backwater rise is analyzed in terms of the contraction ratio, Froude number,longitudinal pier spacing and the total length of the covered reach. A multiple regression equation for the backwater rise estimation is proposed based on the experimental data collected in the present study.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.29, no.3, 1996³â, pp.143-152
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920097265)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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