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Çѱ¹Áö¹Ý°øÇÐȸ / v.13, no.4, 1997³â, pp.85-94
ÁöÇϰø°£ °Ç¼³½Ã ź.¼Ò¼º ¸ðµ¨¿¡ ÀÇÇÑ Áö¹Ý°è¼ö ÃßÁ¤
( A Geotechnical Parameter Estimation of Underground Structures in Elasto -plastic Condition )
ÀÌÀθð;±èµ¿Çö;ÀÌ¿ìÁø; °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;ÄÚ¿À·Õ°Ç¼³(ÁÖ) Åä¸ñ¼³°èÆÀ, °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;;
 
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ÁöÇϰø°£¿¡ ´ëÇÑ ¼³°è ¹× ½Ã°ø½Ã¿¡´Â ÇÊ¿¬ÀûÀ¸·Î ¸¹¿Â ºÒÈ®Á¤¼ºÀÌ ³»Æ÷µÇ¾î ÀÖ´Ù. °¡Àå Áß¿ä ÇÑ ¿ä¼Ò·Î´Â ¼³°è´Ü°è ¿¡¼­ ÀÔ·Â °ªÀ¸·Î »ç¿ëÇÏ´Â Áö¹Ý°è¼öÀ̸ç, ÀÌÀÇ Á¤ È®ÇÑ »êÁ¤ ¿¡´Â ¸¹Àº ¾î·Á ¿òÀÌ µû¸¥´Ù. ƯÈ÷, ÁöÇϰøµ¿ÀÇ ±¼ÂøÀ¸·Î ÀÎÇØ ¼Ò¼º¿µ¿ªÀÌ ¹ß»ýÇÏ°Ô µÇ¸é, Áö¹Ý°Åµ¿Àº Ç׺¹±ÔÁØ À» °áÁ¤Áþ´Â °­µµÁ¤¼ö¿¡ ¹Î°¨ÇÑ ¹ÝÀÀÀ» ³ªÅ¸³»¹Ç·Î ź¼ºÇؼ®¹ý¿¡¸¸ ±Ù°ÅÇÑ ¿ª ÇØ¼®±â¹ýÀÇ Àû¿ë À¸·Î´Â ½Å·Ú¼º ÀÖ´Â Áö¹Ý°è¼ö¸¦ ÃßÁ¤ÇÒ ¼ö ¾ø°Ô µÈ´Ù. º» ³í¹®¿¡¼­´Â ÁöÇϰø°£ÀÇ ¼³°è¿Í ½Ã°øÀÇ À¯±âÀûÀÎ °áÇÕÀ¸·Î ÅͳÎÀÇ ¼Ò¼º»óűîÁö °í·ÁÇÒ ¼ö ÀÖ´Â ÃÖÀûÀÇ Áö¹Ý°è¼ö¸¦ »êÁ¤Çϱâ À§ÇÏ¿©, ÃÊ±â¿¹ÃøÄ¡¿Í °èÃøÄ¡·ÎºÎÅÍ ¿¹ÃøµÈ °ªÀ» ÇÕ¸®ÀûÀ¸·Î Á¶ÇÕÇÒ ¼ö ÀÖ´Â È®Àå Bayesian¹æ¹ý(Extended Bayesian Method:EBM)À» Àû¿ëÇÏ¿´´Ù. Áö¹Ý Á¶ÇÕ °Åµ¿ ¿¹ÃøÀº Mohr-Coulomb Ç׺¹±ÔÁØ¿¡ ±Ù°ÅÇÑ Åº.¼Ò¼º À¯ÇÑ¿ä¼ÒÇØ¼®¹ýÀ» »ç¿ëÇÏ¿´´Ù. °³¹ßµÈ Çǵå¹é ½Ã½ºÅÛÀÇ È¿¿ë¼ºÀ» °ËÁõÇϱâ À§ÇÏ¿© ¼Ò¼º °Åµ¿À» ³ªÅ¸³»´Â ´Ü¸é¿¡ ´ëÇØ ¿¹Á¦Çؼ®À» ¼öÇàÇÏ¿´´Ù.
The design and construction of underground structures contain many substantial mincer dainties. A reasonable estimation of geotechnical parameters is of paramount importance and must be one of the most difficult tasks in designing and constructing underground structures. If the plastic zone exists by tunnel excavation, the ground response may also be dependent on the yield criterion mainly composed of strength parameters. In order to estimate unknown model parameters from the in-situ measurements as well as prior estimates for designing tunnels which have plastic zones, the Extended Bayesian Method(EBM) is adopted : an elasto-plastic finite element program is linked to the EBM as a mathematical model to predict the ground response. Mohr-Coulomb failure criterion is used to represent the plastic behavior. A hypothetical underground site, where the ground behaves elasto-plastically, is adopted to demonstrate the validity of the proposed feedback system.
 
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Elasto-plastic;Underground structures;Back analysis;Strength parameters;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.13, no.4, 1997³â, pp.85-94
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920447507)
¾ð¾î : Çѱ¹¾î
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