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Çѱ¹¼öÀÚ¿øÇÐȸ / v.30, no.5, 1997³â, pp.561-570
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ÇÏõÀ¯¿ªÀÇ À¯»ç·® »êÁ¤ ¹× Çϻ󺯵¿ ¿¹ÃøÀ» À§ÇÑ ¿µÇâÀÎÀÚÀÇ Æò°¡ºÐ¼®
( Estimation of Sediment Transport and Influence Factor for the Prediction of Riverbed Changes ) |
| À±¼¼ÀÇ;ÀÌÁ¾ÅÂ;Á¤Àç¿í; °æ±â´ëÇб³ Åä¸ñ°øÇаú;°æ±â´ëÇб³ ´ëÇпø;;
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| º» ¿¬±¸¿¡¼´Â (1) ¿îµ¿°ú À̷п¡ ±âÃÊÇÑ °¿ì, À¯Ãâ Æ¯¼ºÀ» ÆÄ¾ÇÇϰí, (2) °¿ì ¹× À¯¼ö¿¡ ÀÇÇØ¼ ¹ß»ýÇϴ ħ½Ä, ÅðÀû·®À» »êÁ¤ÇÏ´Â ¸ðÇüÀ» ¿¬±¸Çϸç, (3) À¯»ç·® »êÁ¤½Ä, À¯¿ªÀÇ ºÒÇÒ ¼ö µîÀÌ Çϻ󺯵¿ ¿¹Ãø¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®Çϰí, (4) Æòâ° À¯¿ª¿¡¼ ÇϵµÀÚ·á, °¿ì, À¯Ãú·®, À¯»ç·® µîÀ» ½ÇÃøÇÏ¿© ¸ðÇüÀÇ Àû¿ë¼ºÀ» °ËÁõÇÏ¿´´Ù. ¿îµ¿ÆÄ ¹æÁ¤½ÄÀ» Æòâ° À¯¿ª¿¡ Àû¿ëÇÏ¿© À¯ÃâÇØ¼®À» ½Ç½ÃÇÑ °á°ú, ÷µÎ À¯·®ÀÇ ¹ß»ý½Ã°£Àº ´Ù¼Ò ºü¸£°Ô °è»êµÇ¾úÀ¸³ª ÀüüÀûÀÎ ¼ö¹®°î¼±ÀÇ ÇüÅ ¹× Å©±â¿¡ À־ ºñ±³Àû ½ÇÃøÄ¡¿¡ Á¢±ÙÇϰí ÀÖ¾ú´Ù. À¯»ç·® °î¼±Àº À¯Ãâ¼ö¹®°î¼±¿¡ µû¶ó º¯ÈµÇ¸ç, ½ÇÃøÄ¡¿Í °è»êÄ¡´Â ºñ±³Àû ÀÏÄ¡Çϰí ÀÖ¾î¼ ¸ðÇüÀÇ Àû¿ë¼ºÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. À¯¿ªÀÇ ºÐÇÒ ¼ÒÀ¯¿ª °³¼ö¸¦ Áõ°¡ÇÏ¿© À¯Ãâ·® ¹× À¯»ç·®À» °è»êÇÏ´Â °ÍÀÌ ½ÇÃøÄ¡¿¡ ´õ¿í Á¢±ÙÇÑ °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. 6°³ÀÇ À¯»ç·® »êÁ¤°ø½Ä Áß ÁöÇ¥¸é¿¡¼´Â Yalin ½ÄÀ», Çϵµ¿¡¼´Â Acker-White ½ÄÀ» Àû¿ëÇÏ¿© °è»êÇÑ °á°úÄ¡°¡ ½ÇÃøÄ¡¿¡ °¡Àå °¡±î¿î °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. |
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| The feature of this paper is (1) to analyze the characteristics of rainfall-runoff relationship with kinematic wave theory, (2) to study the computational model to estimate the sediment yield, (3) to analyze the effects of bed change by transport formulas and the number of watershed division, and (4) to verify the model application with observation of channel data and measurement of rainfall, runoff, sediment discharge in Pyung-Chang River Basin. The calculated time of concentration of peak discharge occured little earlier than the actual, but the tendency of hydrograph coincided with observation. The shape of sediment hydrographs was similar to the water hydrograph. Based on above results, the applicability of the model was verified in detail. As the number of watershed division increased, the difference between the measured runoff and sediment values and the estimated ones decreased. The result of calculation with Yalin's formula for surface and Acker-White's one for channel gave the best agreement with the measured data among the six selected sediment transport foumulas. |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.30, no.5, 1997³â, pp.561-570
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920100518)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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