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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.2, 2000³â, pp.237-245
¹è¼ö°©¹® À¯ÀÔ¼ö·ùÀÇ ¿¡³ÊÁö °¨¼è¿¡ µû¸¥ ¾Ï¼® ħ½Ä °¡´É¼º ÃßÁ¤
( Estimation of Rock Erodibility due to Energy Dissipation of Inflow Passing through the Sluice Gate of Seadike )
Á¶ÁøÈÆ;¹Ú¿µÁø;¹Ú»óÇö; ³ó¾÷±â¹Ý°ø»ç ³ó¾îÃÌ¿¬±¸¿ø;³ó¾÷±â¹Ý°ø»ç ³ó¾îÃÌ¿¬±¸¿ø;³ó¾÷±â¹Ý°ø»ç ³ó¾îÃÌ¿¬±¸¿ø ¼ö¸®½ÃÇèÀå;
 
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½ÃÈ­¹è¼ö°©¹®Àº ´çÃÊ ³»Ãø ´ã¼öÈ£ÀÇ ¼öÀ§°ü¸®¸¦ À§ÇÏ¿© ¼³°èµÇ¾úÀ¸³ª È£¼öÀÇ ¼öÁú ¾ÇÈ­¸¦ ¹æÁöÇϱâ À§ÇÏ¿© ¹è¼ö°©¹®À» ´çÃÊ °èȹº¸´Ù ÀæÀº ºóµµ·Î ÀÛµ¿½Ã۰í ÀÖ´Ù. ÀÌ¿¡ µû¶ó °­ÇÑ À¯ÀÔ È帧ÀÇ ¿µÇâÀ» ¹Þ´Â ³»Ãø ¹è¼ö·ÎÀÇ ¹Ù´ÚÀÌ »ó´çÈ÷ ³ÐÀº ¹üÀ§¿¡ °ÉÃÄ Ä§½ÄµÇ°í ÀÖ´Ù. ÃÖ±Ù¿¡ ħ½ÄÀÌ ÁøÇàµÇ´Â °ÍÀ» ¸·±âÀ§ÇÏ¿© ¿¡ÀÌÇÁ·± Àü¸éºÎ ÀϺΠ±¸°£À» ¼öÁßÄÜÅ©¸®Æ®·Î Ÿ¼³ÇÏ¿© ¹Ù´Úº¸°­À» ½ÃÇàÇÏ¿´´Ù. º» ¿¬±¸´Â ¼ö¸®¸ðÇü½ÇÇèÀ» ÅëÇÏ¿© ¹Ù´Úº¸°­ ½ÃÇà ÀÌÀü°ú ÀÌÈÄ¿¡ ´ëÇÏ¿© ¼ö¸®Çö»óÀ» ÆÄ¾ÇÇϰí À¯ÀÔÈ帧ÀÇ ¿¡³ÊÁö º¯È­¿Í ¹Ù´Ú ¾Ï¼®ÀÇ ÀúÇ×·Â µîÀ» ÆÄ¾ÇÇÏ¿© ÇâÈÄ Ä§½ÄÀÇ ÃßÀ̸¦ ¿¹ÃøÇϱâ À§ÇÏ¿© ½Ç½ÃÇÏ¿´´Ù. Annandale(1995)Àº ħ½ÄÁö¼ö ÀÌ·ÐÀ» µµÀÔÇÏ¿© ¸¹Àº ½ÇÇèÀ» ÅëÇÏ¿© ħ½ÄÁö¼ö¿Í È帧ÀÇ ¿¡³ÊÁö °¨¼è °£ÀÇ °ü°è¸¦ ÆÄ¾ÇÇÏ¿´À¸¸ç ¾Ï¼®ÀÇ Ä§½Ä¿©ºÎ¸¦ ÆÇ´ÜÇÒ ¼ö ÀÖ´Â ±âÁØÀ» Á¦½ÃÇÏ¿´´Ù. ¾Ï¼®ÀÇ Ä§½ÄÁö¼ö´Â ÁöÁúÁ¶»ç¿¡¼­ ½ÃÃßÇÑ ½ÃÆíÀÇ ºÐ¼®°á°ú¸¦ Åä´ë·Î °áÁ¤ÇÏ¿´À¸¸ç ¼ö·ùÀÇ ¿¡³ÊÁö °¨¼è´Â ¼ö¸®¸ðÇü½ÇÇè °á°ú·ÎºÎÅÍ Àü¼öµÎÀÇ °¨¼è·®ÀÇ ÃßÁ¤À» ÅëÇÏ¿© °è»êÇÏ¿´´Ù. ÀÌ¿Í °°ÀÌ °áÁ¤µÈ µÎ °ªÀ» ÁÖ¾îÁø ±âÁصµ»ó¿¡ µµ½ÃÇÏ¿© ±× À§Ä¡¿¡ µû¶ó ħ½Ä°¡´É¼ºÀ» ÆÇ´ÜÇÏ¿´´Ù.
Sihwa seadike is originally designed to control the water level In lake Sihwa. However the sluice gate is being operated everyday to preserve the water quality of lake. Due to the frequent operation of gates the bottom of drainage canal which is composed of weathered rock and soft rock is being scoured. Recently the bottom in the front area of apron was protected by putting underwater concrete. This study is carried out to understand the hydraulic situation for protection, and to estimate the trend of scouring by comparing between energy dissipation and registance of bottom rock. Annandale(1995) introduced the erodibility index theory, and suggested a criteria to judge the erodibility of rock through the relation between the erodibility index and energy dissipation. Determenation of erodibility index of rock is based on the results of sample core analysis, and the energy dissipation of flow is calculated from the estimation of total head on the scale model. These two values are plotted on the criteria, and the erodibility of rock is determined.
 
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¹è¼ö°©¹®;¾Ï¼®ÀÇ Ä§½Ä;¿¡³ÊÁö °¨¼è;ħ½ÄÁö¼ö;sluice gate;rock erodibility;energy dissipation;erodibility Index;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.2, 2000³â, pp.237-245
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063640)
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