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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.7, 2009³â, pp.547-558
½Å·Úµµ Áö¼ö¸¦ Àû¿ëÇÑ ÇÏõÁ¦¹æÀÇ À§Çèµµ Æò°¡
( Risk Assessment of Levee Embankment Applying Reliability Index )
¾È±âÈ«;ÇѰǿ¬;±èº´Çö; Çѱ¹¼öÀÚ¿ø°ø»ç ´ï.À¯¿ª°ü¸®Ã³;°æºÏ´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.Åä¸ñ°øÇкÎ;°æºÏ´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.Åä¸ñ°øÇкΠBK21»ç¾÷´Ü;
 
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ÀϹÝÀûÀÎ ÇÏõÁ¦¹æÀÇ ¾ÈÁ¤¼º Æò°¡´Â È®Á¤·ÐÀû ºÐ¼®°á°ú¸¦ Åä´ë·Î °­¿ìƯ¼º, ¸Å°³º¯¼ö µî¿¡ ´ëÇÑ ºÒÈ®½Ç¼ºÀ» ¾ÈÀü °è¼ö¸¦ µµÀÔÇÏ¿© ½Ç½ÃÇϰí ÀÖ´Ù. ÀÌ·¯ÇÑ ¾ÈÀü°è¼ö´Â ¸ðÇüÀÇ ¸Å°³º¯¼ö ¹× Àç·á ¼Ó¼ºÀÇ ´Ù¾ç¼ºÀ» ´Ù·ç´Â °øÇп¡ Æø³Ð°Ô ÀÌ¿ëµÇ³ª ÀÓÀÇÀÇ ÀÚ¿¬ Çö»óÀÇ ¸ðµç °ÍÀ» ¼³¸íÇØÁÖÁö´Â ¾Ê´Â´Ù. ƯÈ÷ ±Ù·¡¿¡ µé¾î ¹ß»ýµÇ´Â Áö±¸¿Â³­È­¿¡ µû¸¥ ÀÌ»ó±âÈÄ Çö»ó°ú »ç»ó À¯·¡°¡ ¾ø´Â È«¼öµéÀÇ ¹ß»ýÀº È®Á¤·ÐÀûÀÎ ¹æ¹ý¿¡ ÀÇÁ¸Çϱ⺸´Ù´Â Ãß°èÇÐÀû ¹æ¹ýÀ» µµÀÔÇÑ ¼ö¹®·® È®Ãæ ¹× ¸Å°³º¯¼öÀÇ ºÒÈ®½Ç¼º ºÐ¼®ÀÇ Çʿ伺ÀÌ Áõ´ëµÇ°í ÀÖ´Ù. ÀÌ¿¡ Àü ¼¼°èÀûÀ¸·Î ¸Å°³º¯¼ö¿Í Ư¼ºÀÎÀÚÀÇ ºÒÈ®½Ç¼ºÀ» °í·ÁÇϰí ÀÎÀÚµé °£ÀÇ »ó°ü°ü°è¸¦ °í·ÁÇÑ Ãß°èÇÐÀû ¹æ¹ý ±â¹ÝÀÇ ´ëÃ¥ ¼ö¸³ÀÌ ÃßÁøµÇ°í ÀÖ´Â »óȲÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â Ãß°èÇÐÀû °­¿ìº¯µ¿ »ý¼º±â¹ýÀ» ÀÌ¿ëÇÏ¿© ÅÂdz±â¿Í À帶±â¿¡ ÇØ´çÇÏ´Â 6¿ù, 7¿ù°ú 8¿ù, 9¿ù¿¡ ¹ß»ý °¡´ÉÇÑ ´Ù¾çÇÑ ¹«Â÷¿ø ´©°¡°­¿ì·®°î¼±À» Monte Carlo ±â¹ýÀ» µµÀÔÇÏ¿© »ý¼ºÇÏ¿´°í ½Å·Úµµ Áö¼ö¸¦ ÀÌ¿ëÇÏ¿© ÇÏõÁ¦¹æÀÇ À§Çèµµ¸¦ Æò°¡ÇÏ¿´´Ù. º» ¿¬±¸°á°ú´Â °­¿ìÀÇ Áö¿ªÀû Ư¼º ¹× ½Ã°£Àû Ư¼ºÀ» ¹Ý¿µÇÒ ¼ö ÀÖ¾î ÇØ´ç À¯¿ªÀÇ È«¼ö´ëÃ¥ ¼ö¸³, ¼ö°ø±¸Á¶¹° ¼³°è ¹× ºÐ¼® µî Ȱ¿ë¼ºÀÌ ¸Å¿ì Ŭ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
General reliability assessment of levees embankment is performed with safety factors for rainfall characteristics and hydrologic and hydraulic parameters, based on the results of deterministic analysis. The safety factors are widely employed in the field of engineering handling model parameters and the diversity of material properties, but cannot explain every natural phenomenon. Uncertainty of flood analysis and related parameters by introducing stochastic method rather than deterministic scheme will be required to deal with extreme weather and unprecedented flood due to recent climate change. As a consequence, stochastic-method-based measures considering parameter uncertainty and related factors are being established. In this study, a variety of dimensionless cumulative rainfall curve for typhoon and monsoon season of July to September with generation method of stochastic temporal variation is generated by introducing Monte Carlo method and applied to the risk assessment of levee embankment using reliability index. The result of this study reflecting temporal and regional characteristics of a rainfall can be used for the establishment of flood defence measures, hydraulic structure design and analysis on a watershed.
 
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À§Çèµµ Æò°¡;°­¿ìº¯µ¿;Monte Carlo ±â¹ý;ÇÏõÁ¦¹æ;½Å·Úµµ Áö¼ö;risk assessment;rainfall variation;Monte Carlo method;levee embankment;reliability index;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.7, 2009³â, pp.547-558
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200922335514183)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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