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Çѱ¹¼öÀÚ¿øÇÐȸ / v.24, no.2, 1991³â, pp.109-119
È«¼ö½Ã ÇѰ­ ÇÏ·ùºÎÀÇ Çϻ󺯵¿¿¡ °üÇÑ ¿¬±¸
( A Study of River-Bed Variation from Goan to Indogyo due to Flood in Han River )
¹ÚÁ¤ÀÀ;±è°æ¼ö; ¼­¿ï»ê¾÷´ëÇÐ Åä¸ñ°øÇаú;°æÈñ´ëÇб³ Åä¸ñ°øÇаú;
 
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´ï °Ç¼³·Î ÀÎÇÏ¿© »ó·ù·Î ºÎÅÍ Åä»ç°ø±ÞÀÌ Áß´Ü »óÅÂÀÎ ÇÏõ¿¡ À־ÀÇ Çϻ󺯵¿À̳ª À¯»ç ÀÌ¼Û Çö»óÀº »ó´çÈ÷ º¹ÀâÇÑ ¹°¸®Àû Çö»óÀ̱⠶§¹®¿¡ ÀÌ¿¡ °ü·ÃµÈ ¼öÄ¡¸ðÇüÀÇ ¼³Á¤ÀÌ ÇÊ¿äÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â Çϻ󺯵¿¿¡ ´ëÇÑ ¼öÄ¡ÇØ¼®¹æ¹ýÀ¸·Î Á¤·ù°³³äº¸´Ù´Â Á¡º¯ºÎÁ¤·ù °³³äÀ» Àû¿ëÇÏ¿´À¸¸ç, È«¼ö±â·Ï°ú Çϻ󺯵¿¿¡ °üÇÑ ÀÚ·á°¡ ºñ±³Àû dzºÎÇÑ ÇѰ­ÇÏ·ùºÎ¿¡ ÀÌ ¼öÄ¡¸ðÇüÀ» Àû¿ëÇÏ¿© À¯·®º¯È­(È«¼ö±â·Ï, ƯÁ¤°èȹÀ¯·®) ¹× ÇÏ»ó°í º¯µ¿(±âÁ¸, °èȹ)À» ¸ðÀÇ ÇÏ¿´´Ù.
The river-bed variation and the sediment transport in an alluvial stream are very complicated physical phenomena, especially in a stream where the dam construction prevents the supply of earth and sand from upper tributaries Therefore, the mathematical modeling is needed to establish. The purpose of this study is to apply river-bed variation to the Han River downstream by the conception of gradually varied unsteady flow instead of that of steady flow in order to decrease errors. For the variation and forecast of river-bed, the numerical analysis has been made in this study by way of discharge variation and river-bed variation. In conclusion, the numerical analysis shows that river-bed variation, sediment transport , and their forecast have similarity to natural phenomena and that river-bed variation is greatly affected in sediment transport by discharge variation and retention time(duration). Therefore, the errors of numerical analysis can be reduced by the application of flood data instead of continuous discharge data.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.24, no.2, 1991³â, pp.109-119
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199111920093610)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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