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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.2, 1998³â, pp.107-126
Åͳα¼Âø ÇöÀå¿¡ ÀÎÁ¢ÇÑ Áö»ó±¸Á¶¹°ÀÇ ¾ÈÀü¼º Æò°¡¿ë Àü¹®°¡ ½Ã½ºÅÛÀÇ °³¹ß (1) -Àü¹®°¡ ½Ã½ºÅÛ °³¹ß ¹× ½Å·Ú¼º °ËÁõÀ» Áß½ÉÀ¸·Î
( Development of a Neural Network Expert System for Safety Analysis of Structures Adjacent to Tunnel Excavation Sites Focused on Development and Reliability Evaluation of Expert System )
¹è±ÔÁø;½ÅÈÞ¼º; Á¤È¸¿ø, Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½ÇÀå;Á¤È¸¿ø, Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç ¿¬±¸ÆÀÀå, Á¤È¸¿ø, Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç ¿¬±¸¿ø, Á¤È¸¿ø, ÇѾç´ëÇб³ °ø°ú´ëÇÐ Áö±¸È¯°æ°Ç¼³°øÇкÎ;
 
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Åͳα¼ÂøÀ¸·Î ¹ß»ýµÇ´Â Áö¹ÝħÇÏ´Â Áö»ó±¸Á¶¹°ÀÇ º¯ÇüÀ» À¯¹ßÇÒ ¼öµµ ÀÖÀ¸¹Ç·Î Åͳα¼Âø Àü¿¡ Áö»ó±¸Á¶¹°ÀÇ ¾ÈÀü¼º Æò°¡°¡ ¿ä±¸µÈ´Ù. ÀÌ·¯ÇÑ º¯Çü¿¡ ´ëÇÑ ±¸Á¶¹°ÀÇ ¾ÈÀü¼ºÀ» Æò°¡Çϱâ À§ÇÏ¿© º» ¿¬±¸¿¡¼­´Â ÅͳÎÇöÀåÀÇ Áö¹ÝħÇϸ¦ ¿¹ÃøÇϰí, À̸¦ ±â¹ÝÀ¸·Î Áö»ó±¸Á¶¹°ÀÇ ¾ÈÁ¤¼º Æò°¡¸¦ ¼öÇàÇÏ´Â Àü¹®°¡ ½Ã½ºÅÛ NESASS(Neural Network Expert System for Adjacent Structure Safety analysis)¸¦ °³¹ßÇÏ¿´´Ù. NESASS´Â Àΰø½Å°æ¸ÁÀ» ÀÌ¿ë, ÅͳÎÇöÀåÀÇ Áö¹ÝħÇÏ °èÃøÀÚ·á·Î ÀÛ¼ºµÈ µ¥ÀÌÅͺ£À̽º ÀڷḦ ÇнÀÀÚ·á·Î ÇÏ¿© ÇнÀÀ» ¼öÇàÇϰí, À̸¦ ±â¹ÝÀ¸·Î ÅͳÎÇöÀåÀÇ Áö¹ÝħÇÏ Æ®¶óÇÁ¸¦ Ãß·ÐÇÑ´Ù. ¶ÇÇÑ ÀϹݱ¸Á¶¹°ÀÇ ¾ÈÀü¼ºÀ» Æò°¡Çϴµ¥ ÀÌ¿ëµÇ°í ÀÖ´Â ÀÎÀÚ, Áï °¢º¯Çü(angular distortion)°ú ó¡ºñ (deflection ratio) µîÀ» ÀÌ¿ëÇÏ¿© Áö»ó°Ç¹°ÀÇ ¾ÈÀü¼ºÀ» Æò°¡ÇÔ°ú ¾Æ¿ï·¯ DulacskaÀÇ ±Õ¿­Æò°¡ ¸ðµ¨ À» ÀÌ¿ëÇÏ¿© °Ç¹°ÀÇ ±Õ¿­¾ç»óÀ» ¿¹ÃøÇÑ´Ù. º» ¿¬±¸¿¡¼­´Â ¼­¿ïÁöÇÏö ÇöÀåÀ» ´ë»óÀ¸·Î 113°³ °èÃøÃø¼±ÀÇ Áö¹ÝħÇÏ °èÃøÀڷḦ ¼öÁý Á¤¸®Çϰí Áö¹ÝħÇÏÀÇ ÁÖ ¿µÇâÀÎÀÚµéÀ» ¼±Á¤ÇÏ¿©. À̵éÀ» µ¥ÀÌÅͺ£À̽ºÈ­ÇÏ¿´´Ù. ±×¸®°í Àΰø½Å°æ¸Á ±¸Á¶¿¡ °ü·ÃµÈ ¸Å°³º¯¼ö ¿¬±¸¸¦ ¼öÇàÇÏ¿© ±¸ÃàµÈ µ¥ÀÌÅͺ£À̽º¿¡ ´ëÇÑ ÃÖÀû Àΰø½Å°æ¸Á ¸ðµ¨À» ¼±Á¤ÇÏ¿´´Ù. ¶ÇÇÑ ÇöÀåÀÚ·á¿ÍÀÇ ºñ±³¸¦ ÅëÇÏ¿© NESASSÀÇ Áö¹ÝħÇÏ ¿¹Ãø´É·ÂÀ» Á¶»çÇϰí, ÇöÀåÀڷḦ ÀÌ¿ëÇÏ¿© Áö»ó±¸Á¶¹°¿¡ ´ëÇÑ ¾ÈÀü¼º Æò°¡ÀÇ ½Å·Ú¼ºÀ» Æò°¡ÇÔÀ¸·Î½á NESASSÀÇ ½Ç¹« Àû¿ë¼ºÀ» È®ÀÎ ÇÏ¿´´Ù.
Ground settlements induced by tunnel excavation cause the foundations of the neighboring building structures to deform. An expert system called NESASS( Neural network Expert System for Adjacent Structure Safety analysis) was developed to analyze the structural safety of such building structures. NESASS predicts the trend of ground settlements resulting from tunnel excavation and carries out a safety analysis for building structures on the basis of the predicted ground settlements. Using neural network technique. the NESASS learns the database consisting of the measured ground settlements collected from numerous actual fields and infers a settlement trend at the field of interest. The NESASS calculates the magnitudes of angular distortion, deflection ratio, and differential settlement of the structure. and in turn, determines the safety of the structure. In addition, the NESASS predicts the patterns of cracks to be formed in the structure, using Dulacska model for crack evaluation. In this study, the ground settlements measured from Seoul subway construction sites were collected and classified with respect to the major factors influencing ground settlement. Subsequently, a database of ground settlement due to tunnel excavation was built. A parametric study was performed to select the optimal neural network model for the database. A comparison of the ground settlement predicted by the NESASS with the measured ones indicates that the NESASS leads to reasonable predictions. The results of confidence evaluation for safety evaluation system of the NESASS are presented in this paper.
 
Ű¿öµå
Expert system;Neural network;Settlement prediction;Safety evaluation;Crack evaluation;Adjacent structure;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.2, 1998³â, pp.107-126
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448073)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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