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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.3, 2005³â, pp.109-118
È®Àå Baysian ¹æ¹ý°ú »ó´ëº¯À§¸¦ ÀÌ¿ëÇÑ ÅͳΠ¿ªÇؼ® ±â¹ýÀÇ Àû¿ë»ç·Ê¿¬±¸
( A Case Study of Back-analysis Technique in Tunnelling Using Extended Bayesian Method and Relative Convergence Measurement )
ÀÌÀθð;Ãֹα¤;Á¶±¹È¯;À̱ÙÇÏ;ÃÖÃæ½Ä; °í·Á´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇкÎ;¿ë¸¶ ¿£Áö´Ï¾î¸µ ±â¼ú¿¬±¸¼Ò;¼­¿ï»ê¾÷´ëÇб³ °Ç¼³´ëÇÐ ±¸Á¶°øÇаú;(ÁÖ)Æ÷½ºÄÚ °Ç¼³ Åä¸ñ±â¼úÆÀ;(ÁÖ)Æ÷½ºÄÚ °Ç¼³ Åä¸ñ±â¼úÆÀ;
 
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Åͳΰú °°Àº ¼±Çü ±¸Á¶¹°ÀÇ °æ¿ì, ÅͳÎÀÌ ½Ã°øµÉ Áö¹ÝÀÇ ÀüüÀûÀÎ »óŸ¦ ¼³°è´Ü°è¿¡¼­ Á¤È®È÷ ÆÄ¾ÇÇϱâ´Â ¸Å¿ì Èûµç °ÍÀÌ »ç½ÇÀÌ´Ù. µû¶ó¼­ ½Ã°ø°úÁ¤¿¡¼­ ȹµæµÇ¾îÁö´Â °èÃøÀÚ·á¿Í ¼³°è´Ü°è¿¡ÀÇ »çÀüÁ¤º¸¸¦ ÀûÀýÈ÷ Á¶ÇÕÇÏ´Â Çǵå¹é(feed-back)°úÁ¤ÀÌ ÇʼöÀûÀÌ°Ô µÈ´Ù. º» ³í¹®¿¡¼­´Â ÅͳΠ³»¿¡¼­ °èÃøµÈ »ó´ëº¯À§¸¸À» ¿ªÇؼ® ÀԷ°ªÀ¸·Î Àû¿ëÇÑ 3Â÷¿ø ÅͳΠ¿ªÇؼ® ±â¹ýÀ» ÀÌ¿ëÇÏ¿© ÅͳΠÁÖº¯ Áö¹ÝÀÇ ÃÖÀûÀÇ Áö¹ÝÁ¤¼ö¸¦ Æò°¡ÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© ¿¹ÃøÄ¡¿Í °èÃøÄ¡¸¦ ÇÕ¸®ÀûÀ¸·Î Á¶ÇÕÇÒ ¼ö ÀÖ´Â È®Àå Bayesian ¹æ¹ý(Extended Bayesian Meoth EBM)À» ¿ªÇؼ®ÀÇ ¸ñÀûÇÔ¼ö·Î »ç¿ëÇÏ¿´À¸¸ç, ÅͳΠ³»°øº¯À§ ¿¹ÃøÀ» À§ÇØ 3Â÷¿ø ¼öÄ¡ÇØ¼®À» Àû¿ëÇÏ¿´´Ù. µÎ °÷ÀÇ ½ÇÁ¦ ÅͳΠÇöÀå°èÃøÀڷḦ ¹ÙÅÁÀ¸·Î ¿ªÇؼ®À» ¼öÇàÇÏ¿´À¸¸ç, À̸¦ ÅëÇÏ¿© Á¦¾ÈµÈ ¿ªÇؼ® ±â¹ýÀÇ È¿¿ë¼ºÀ» °ËÁõÇÏ¿´´Ù.
It is a very difficult task to estimate engineering properties of the ground when designing underground structures, especially in tunnelling. Therefore, a feed-back system to combine the data measured in construction field with priorly estimated information at the design stage is necessary. In this paper, 3-dimensional back-analysis in tunnelling, to which only relative convergence is applied as input values, is carried out to estimate the optimum geotechnical parameters. For this purpose, the Extended Bayesian Method (EBM), which appropriately combines the objective information with the subjective one, is applied to optimize engineering parameters and 3-dimensional numerical analysis is carried out to predict a trend of relative convergence occurrence. The data measured from two tunnelling sites are used to verify the applicability of the proposed back-analysis technique. from the results of analysis, the proposed back-analysis technique is verified.
 
Ű¿öµå
Back-analysis;Numerical analysis;Parameter estimation;Relative convergence;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.3, 2005³â, pp.109-118
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200520828086668)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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