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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.5, 2006³â, pp.467-478
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( An Evaluation Method of Water Supply Reliability for a Dam by Firm Yield Analysis ) |
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| È®·ü·ÐÀû ½Å·Úµµ¸¦ ÀÌ¿ëÇÏ¿© ´ïÀÇ ¹° °ø±Þ ¾ÈÀüµµ¸¦ Á¤ÀÇÇÏ¿´´Ù. ±×¸®°í Àå±â º¸Àå °ø±Þ·®ÀÇ ¾ÈÀüµµ ºÐ¼®¿¡ ÀÇÇÑ ´ïÀÇ ¹° °ø±Þ ¾ÈÀüµµ Æò°¡ ÀýÂ÷¸¦ Á¦½ÃÇÏ¿´°í, ¼Ò¾ç°´ï°ú ÃæÁÖ´ïÀÇ ¹° °ø±Þ ¾ÈÀüµµ¸¦ Æò°¡ÇÏ¿´´Ù. ¹° °ø±Þ ¾ÈÀüµµÀÇ Æò°¡¿¡ Æî¿äÇÑ 41 °³ÀÇ ¿ù À¯Ã⠽ðè¿Àº SAMS-2000À¸·Î ¸ðÀÇ ¹ß»ý½ÃÄ×´Ù. º¸Àå °ø±Þ·® °áÁ¤À» À§ÇÑ Àú¼öÁö ¸ðÀǿ¿¡´Â HEC-5¸ðÇüÀÌ »ç¿ëµÇ¾ú´Ù. 50³â °èȹ ±â°£¿¡ ´ëÇÏ¿© ¼³°è À¯ÃâÀÚ·á¿¡ ÀÇÇÑ ¼Ò¾ç°´ï º¸Àå °ø±Þ·®ÀÇ ¹° °ø±Þ ¾ÈÀüµµ´Â 80.5 %·Î Æò°¡µÇ¾ú°í, Áذø ÈÄ ±â·Ï À¯ÀÔ·®¿¡ ÀÇÇÑ º¸Àå °ø±Þ·®ÀÇ ¹° °ø±Þ ¾ÈÀüµµ´Â 53.7 %¿´´Ù. ±×¸®°í ¼³°è À¯ÀÔ·® ÀÚ·áÀÇ º¸Àå °ø±Þ·®Àº 14.91¾ï $m^3$/yrÀ̾ú°í, ±â·Ï À¯ÀÔ·® ÀÚ·áÀÇ º¸Àå °ø±Þ·®Àº 15.85¾ï $m^3$/yrÀ¸·Î ºÐ¼®µÇ¾ú´Ù. ±â·Ï À¯ÀÔ·® ÀÚ·áÀÇ º¸Àå °ø±Þ·®À» ¸ñÇ¥ °ø±Þ·®À¸·Î ÇÏ¸é ¿¬°£ 0.94¾ï $m^3$ÀÇ ¿ë¼ö¸¦ Ãß°¡ °ø±ÞÇÒ ¼ö ÀÖ´Ù. µ¿ÀÏÇÑ ÀýÂ÷·ÎºÎÅÍ, ÃæÁÖ´ïÀÇ ¼³°è À¯ÃâÀÚ·á¿¡ ÀÇÇÑ º¸Àå °ø±Þ·®Àº 33.77¾ï $m^3$/yrÀ̾ú°í, ±â·Ï À¯ÀÔ·®¿¡ ÀÇÇÑ º¸Àå °ø±Þ·®Àº 29.60¾ï $m^3$/yrÀ¸·Î Æò°¡µÇ¾ú´Ù. ÃæÁÖ´ïÀÇ ¼³°è À¯ÃâÀÚ·á¿¡ ÀÇÇÑ º¸Àå °ø±Þ·®À» ¸ñÇ¥ °ø±Þ·®À¸·Î ÇÏ¿´À» ¶§, ¸ðµç ¸ðÀÇ ¹ß»ý ½Ã°è¿¿¡ ´ëÇÏ¿© ¹° °ø±Þ ºÎÁ·ÀÌ ¹ß»ýÇÏ¿´´Ù. ÃæÁÖ´ïÀÇ ¼³°è ´ç½Ã º½Ã¶ À¯ÀÔ·®ÀÇ °ú´ëÆò°¡°¡ ±× ¿øÀÎÀÏ ¼ö ÀÖ´Ù. Á¦¾ÈµÈ ÀýÂ÷¸¦ Àû¿ëÇÏ¸é º¸´Ù °´°üÀûÀ¸·Î ´ïÀÇ ¹° °ø±Þ ¾ÈÀüµµ¸¦ Æò°¡ÇÒ ¼ö ÀÖ´Ù. |
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| Water supply reliability for a dam is defined with a concept of probabilistic reliability. An evaluation procedure of the water supply reliability is shown with an analysis of long term firm yield reliability. The water supply reliabilities of Soyanggang Dam and Chungju Dam were evaluated. To evaluate the water supply reliability, forty one sets of monthly runoff series were generated by SAMS-2000. HEC-5 model was applied to the reservoir simulation to compute the firm yield from a monthly data of time series. The water supply reliability of the firm yield from the design runoff data of Soyanggang Dam is evaluated by 80.5 % for a planning period of 50 years. The water supply reliability of the firm yield from the historic runoff after the dam construction is evaluated by 53.7 %. The firm yield from the design runoff is 1.491 billion $m^3$/yr and the firm yield from the historic runoff is 1.585 billion $m^3$/yr. If the target draft Is 1.585 billion $m^3$/yr, additional water of 0.094 billion $m^3$ could be supplied every year with its risk. From the similar procedures, the firm yield from the design runoff of Chungju Dam is evaluated 3.377 billion $m^3$/yr and the firm yield from the historic runoff is 2.960 billion $m^3$/yr. If the target draft is 3.377 billion $m^3$/yr, water supply insufficiency occurs for all the sets of time series generated. It may result from overestimation of the spring runoff used for design. The procedure shown can be a more objective method to evaluate water supply reliability of a dam. |
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| Ű¿öµå |
| ¹° °ø±Þ ¾ÈÀüµµ;º¸Àå °ø±Þ·®;HEC-5 ¸ðÇü;water supply reliability;firm yield;HEC-5 model;SAMS-2000; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.5, 2006³â, pp.467-478
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200626813042417)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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