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Çѱ¹¼öÀÚ¿øÇÐȸ / v.35, no.6, 2002³â, pp.693-701
¼öÄ¡¸ðÇüÀ» ÀÌ¿ëÇÑ Çϻ󺯵¿ ¿¹Ãø
( Prediction of River Bed Variation using Numerical Model )
¾È»óÁø;À±¼®È¯;¹é³²´ë; ÃæºÏ´ëÇб³ Åä¸ñ°øÇаú;ÃæºÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;³²¿ø°Ç¼³¿£Áö´Ï¾î¸µ ¼öÀÚ¿øºÎ;
 
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º» ¿¬±¸´Â º¸Ã»Ãµ ÇϵµÇüÅÂÀÇ º¯È­¸¦ ÇØ¼®Çϱâ À§ÇØ 1Â÷¿ø À¯»çÀ̵¿ ¸ðÇüÀÎ HEC-6 ¸ðÇü°ú ÁØ 2Â÷¿ø À¯»çÀ̵¿ ¸ðÇüÀÎ GSTARS 2.1 ¸ðÇüÀ» Àû¿ëÇÏ¿´´Ù. GSTARS 2.1 ¸ðÇü¿¡ Æ÷ÇÔµÈ Ackers¿Í White°ø½Ä, Engelund¿Í Hanson°ø½Ä ±×¸®°í Yang°ø½ÄÀÇ ¼¼ °¡Áö À¯»çÀ̼۰ø½ÄÀÌ 1993³âºÎÅÍ 2000³â±îÁöÀÇ ÇÏ»óÀç·á¿¡ ´ëÇØ ¸ðÀǵǾúÀ¸¸ç, ±× °á°ú Ackers¿Í White°ø½ÄÀÌ ½ÇÃøÄ¡¿¡ ±Ù»çÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. 1Â÷¿ø À¯»çÀ̵¿ ¸ðÇüÀÎ HEC-6¸ðÇü°ú GSTARS 2.1 ¸ðÇü°úÀÇ Àå±â Çϻ󺯵¿ ºÐ¼®¿¡ À־ µÎ ¸ðÇü ¸ðµÎ ÇÏõº¯È­¿¡ ´ëÇÑ Àü¹ÝÀûÀÎ °æÇâÀÌ ½ÇÃøÄ¡ÀÇ Çϻ󺯵¿ °æÇâÀÇ °á°ú¿Í À¯»çÇß´Ù. ½ÇÃøÄ¡¿ÍÀÇ È¾´Ü¸é º¯È­ÀÇ ºñ±³¿¡¼­ GSTARS 2.1 ¸ðÇüÀÌ HEC-6¸ðÇüÀÇ ¸ðÀǰá°úº¸´Ù ¾çÈ£ÇÑ °á°ú¸¦ ³ªÅ¸³»¾ú´Ù.
In this study, one dimensional sediment movement numerical model(HEC-6) and semi-two dimensional sediment movement numerical model(GSTARS 2.1) were applied to solve the change of channel geometry in Bocheong stream. GSTARS 2.1 model was applied for the three selected sediment transport formulas(Ackers and White's, Engelund and Hanson, Yang formula) from 1993 to 2000 measured data on each section. The simulation results of Ackers and White formula for long -term bed changes are good when compared to the measured data. The HEC-6 model was applied for the simulation of one dimensional sediment movement for the same period. Comparison of the long-term simulations by GSTARS 2.1 and HEC-6 models with measured data shows that simulations by both models are in fair agreement with measured data in overall trend of the river bed changes. Comparisons of simulated cross sectional bed-elevations with measured data shows that GSTARS 2.1 model gives better agreement with than simulated results bed changes on the HEC-6 model.
 
Ű¿öµå
GSTARS 2.1 ¸ðÇü;HEC-6 ¸ðÇü;Çϻ󺯵¿;GSTARS 2.1 model;HEC-6 model;River Bed Variation;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.35, no.6, 2002³â, pp.693-701
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921477172)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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