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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.3, 2002³â, pp.113-125
Åͳα¼ÂøÀ¸·Î ÀÎÇÑ Áö¹ÝħÇÏÀÇ ÁÖ¿ä ¿µÇâ ÀÎÀÚ ¿¹Ãø
( Prediction of Major Parameters of Surface Settlements Due to Tunnelling )
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Áö¹ÝÀÇ ÁöǥħÇϸ¦ ¿¹ÃøÇÏ´Â ¿©·¯°¡Áö °æÇè½ÄµéÀÌ ÀÖÁö¸¸, °ü·ÃÀÎÀÚµéÀ» µ¿½Ã¿¡ °í·ÁÇÏÁö ¸øÇÔÀ¸·Î ÀÎÇÏ¿© ºÒÈ®½ÇÇÑ ¿¹Ãø°á°ú¸¦ °¡Á®¿Â´Ù. º» ¿¬±¸¿¡¼­´Â 113°³ÀÇ ÇöÀå°èÃøÀڷḦ ÀÌ¿ëÇÑ Àΰø½Å°æ ¸ÁÀ¸·Î Á¶°Ç¿¡ µû¸¥ ÅͳÎÇöÀåÀÇ ÁöǥħÇϸ¦ ¿¹ÃøÇÏ¿´´Ù. ÁöǥħÇÏ ¿¹ÃøÀ» À§ÇÑ ÇöÀåÀÚ·áÀÇ ÀԷ¾ç½ÄÀ» Á¦¾ÈÇÏ¿´À¸¸ç, ÀÎÀÚÇнÀÀ» ÅëÇØ ÃÖÀûÀÇ Àΰø½Å°æ ¸Á ¸ðµ¨À» ±¸¼ºÇϰí RSEÀÇ °³³äÀ» ÅëÇØ Åͳα¼ÂøÀ¸·Î ÀÎÇÑ ÁöǥħÇÏ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ÁÖ¿äÀÎÀÚµéÀ» ºÐ¼®ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ ±¸¼ºÇÑ µ¥ÀÌÅͺ£À̽º¸¦ ÀÌ¿ëÇÏ¿© Àΰø½Å°æ ¸Á ¿£ÁøÀ» ÇнÀÇÏ°í µÎ °¡Áö ÇöÀåÀڷḦ ÅëÇØ °ËÁõÇÑ °á°ú, °èÃøÀÚ·áÀÇ Æ¯¼ºÀ» È¿°úÀûÀ¸·Î ¹Ý¿µÇÏ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
Although there are several empirical and semi-empirical formulae available for predicting ground surface settlement, most of them do not simultaneously take into consideration all the relevant factors, resulting in inaccurate predictions. In this study, an artificial neural network (ANN) is incorporated with 113 of monitored field results to predict surface settlement for a tunnel site with prescribed conditions. To achieve this, a format for a database of monitored field data is first proposed and then used for sorting out a variety of monitored data sets available in Korea Institute of Construction Technology. An optimal neural network model is suggested through preliminary parametric studies and introduces a concept of RSE (Yang and Zhang, 1997) in sensitivity analysis for various major factors affecting the surface settlement in tunnelling. It is seen in some examples that the RSE rationally enables to recognize the most significant factors of all the contributing factors. Two verification examples are undertaken with the trained ANN using the database created in this study. It is shown from the examples that the ANN has adequately recognized the characteristics of the monitored data sets retaining a generality fur further prediction.
 
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Artificial neural network;Inflection point;relative strength of effects;Settlement;Tunnelling;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.3, 2002³â, pp.113-125
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921035404)
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