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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.1, 2007³â, pp.39-49
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¹Î°¨µµºÐ¼®À» ÅëÇÑ ÁöÁøÇÏÁßÀ» ¹Þ´Â CFRD Á¤»óºÎ ħÇÏ·® ¿¹Ãø
( Estimation of Settlement on the Crest of CFRD Subjected to Earthquake Loading Using Sensitivity Analysis ) |
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| º» ¿¬±¸ÀÇ ¸ñÀûÀº ¼öÄ¡ÇØ¼®À» ÀÌ¿ëÇÑ Á¤·®Àû ¹Î°¨µµºÐ¼®À¸·ÎºÎÅÍ ÁöÁøÇÏÁßÀ» ¹Þ´Â CFRD Á¤»óºÎ ħÇÏ·® º¯ÈÀÇ ÁÖ ¿µÇâÀÎÀÚ¸¦ ã°í, ÁÖ ¿µÇâÀÎÀÚ º¯È¿¡ µû¸¥ ħÇÏ·®ÀÇ º¯È¾ç»óÀ» °íÂûÇϰí, À̷κÎÅÍ ÁöÁøÇÏÁßÀ» ¹Þ´Â CFRD Á¤»óºÎ ħÇÏ·®À» ±Ù»çÀûÀ¸·Î ÃßÁ¤ÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ´Â µ¥ ÀÖ´Ù. ´ëÇü»ïÃà¾ÐÃà½ÃÇèÀ¸·ÎºÎÅÍ ¾ò¾îÁø »ç·ÂÀç·á ¹°¼ºÀ» Åë°è ºÐ¼®ÇÏ¿© »ç·ÂÀç·á ¹°¼º Åë°èƯ¼º°ªÀ» »êÁ¤Çϰí, »êÁ¤µÈ Åë°èƯ¼º°ªÀ» ÀÌ¿ëÇÏ¿© ÀÛ¼ºµÈ 27°³ ÇØ¼®´Ü¸é¿¡ ´ëÇØ ÇØ¼®Á¶°ÇÀ» ´Þ¸®ÇÑ(2°³ ÁöÁøÆÄ, °¢ ÁöÁøÆÄº° 2°¡Áö °¡¼Óµµ Å©±â) ÃÑ 108°³ CFRD ÇØ¼®´Ü¸é¿¡ ´ëÇÑ µ¿Àû¼öÄ¡ÇØ¼®À» ¼öÇà, ±× °á°ú¸¦ ÀÌ¿ëÇÑ Á¤·®Àû ¹Î°¨µµºÐ¼®À» ¼öÇàÇÏ¿´´Ù. ¹Î°¨µµºÐ¼® °á°ú, ÁöÁøÇÏÁß ÀÛ¿ë ½Ã CFRD Á¤»óºÎ ħÇÏ·®Àº ÀÔ·Â ¹°¼º Áß ÀüÀûÀ¸·Î »ç·ÂÀç·áÀÇ Àü´Üź¼º°è¼ö¿¡ ÀÇÁ¸ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ°í Á¡Âø·Â°ú ¸¶Âû°¢ÀÇ ¿µÇâÀº ¹Ì¹ÌÇÏ¿´´Ù. ¹Î°¨µµºÐ¼® °á°ú¿Í Àü´Üź¼º°è¼ö º¯È¿¡ µû¸¥CFRD µ¿ÀûÇØ¼® °á°ú·ÎºÎÅÍ, »ç·ÂÀç·áÀÇ Àü´Üź¼º°è¼ö¿Í °£´ÜÇÑ ´ï Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ÁöÁøÇÏÁß ÀÛ¿ë½Ã CFRD Á¤»óºÎ ħÇÏ·®À» ±Ù»çÀûÀ¸·Î ÃßÁ¤ÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. |
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| In this study, quantitative sensitivity analysis on rockfill material influencing the dam crest settlement of CFRD (Concrete-Faced Rockfill Dam) subjected to earthquake loading was carried out. The purpose of this study is to indicate the most important input parameter from the results of sensitivity analysis, to show the quantitative variation of settlement at the crest of CFR type dam during earthquake with this input parameter, and to recommend the approximate estimation method of the settlement on the crest of CFRD subjected to earthquake loading. The statistic characteristics of rockfill parameters which were obtained from large triaxial tests were evaluated. The total 108 dynamic numerical analyses (2 input earthquake, 2 magnitudes for each earthquake, 27 rockfill material property combinations) on CFRD were conducted. The global sensitivity analysis was carried out using the results of numerical analysis. From the sensitivity analysis, It was found that the crest settlement of the CFRD subjected to earthquake was absolutely affected by the shear modulus of rockfill material irrespective of the input earthquakes and the magnitude of input acceleration. On the contrary, it was found that the effect of cohesion and friction angle of rockfill was negligible. From the results of sensitivity analysis and numerical analysis, the approximate estimation method of the settlement on the crest of CFRD subjected to earthquake loading was recommended on condition that the rockfill shear modulus and simple dam information was known. |
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| CFRD;Dam;Dynamic analysis;Earthquake;Sensitivity analysis; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.1, 2007³â, pp.39-49
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200708508460714)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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