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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.9, 2009³â, pp.93-100
´ÙÁß ¹ÌÁöº¯¼ö¸¦ °í·ÁÇÑ ´ÙÃþÁö¹Ý ¿ªÇؼ®
( Back Analysis Method for Material Properties of Multi-layers Ground Considering Multiple Unknown Variables )
±è¼¼Áø;±è¹®°â;¿øÁ¾È­;±èÁ¤¼ö; µ¿ºÎ°Ç¼³(ÁÖ) Åä¸ñ»ç¾÷ºÎ;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­ ¿ªÇؼ®¿¡ ÀÌ¿ëÇÑ Á÷Á¢¹ýÀº ½ÇÁ¦ º¯À§¿Í ¸ñÀûÇÔ¼öÀÇ Â÷À̸¦ ÃÖ¼ÒÈ­ÇÏ°í ¹ÌÁöº¯¼ö¸¦ º¸Á¤ÇÏ´Â ÃÖÀûÈ­°¡ ÇÙ½É °úÁ¤ÀÌ´Ù. ¿¬±¸°úÁ¤ÀÌ º¹¼öÀÇ ÁöÃþÀ» ´Ü°èº°·Î ¿ªÇؼ®ÇÏ¿© °¢ Áö¹ÝÀÇ ¹ÌÁöº¯¼ö¸¦ ¿ªÇؼ®Çϱ⠶§¹®¿¡ ÁöÃþ °£ ¹ÌÁöº¯¼öÀÇ °£¼· È¿°ú¸¦ ÃÖ¼ÒÈ­ ÇÒ ¼ö ÀÖ´Â Ãß°¡ÀûÀÎ ÃÖÀûÈ­°¡ ÇÊ¿äÇÏ´Ù. µû¶ó¼­ È¿À²ÀûÀ̰í Á¤È®ÇÑ ÃÖÀûÈ­¸¦ À§Çؼ­ ¸ñÀûÇÔ¼öÀÇ Æí¹ÌºÐ °è»ê°úÁ¤ÀÌ ¾øÀÌ ÃÖÀûÇØ¸¦ ±¸ÇÒ ¼ö ÀÖ´Â Á÷Á¢Å½»ö¹ý(direct search method)À» »ç¿ëÇÏ¿´´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ÁöÇϱ¸Á¶Ã¼°¡ Æ÷ÇÔµÈ ÁöÃþÀ» »óºÎ¿Í ÇϺÎÀÇ ÁöÃþÀ¸·Î ¸ðÇüÈ­Çϰí, ´ÙÁß ¹ÌÁöº¯¼ö¸¦ ¿ªÇؼ®ÇÏ´Â ±â¹ýÀ» °³¹ßÇÏ´Â µ¥¿¡ ¸ñÀûÀ» µÐ´Ù. ¶ÇÇÑ ´Ü°èº° ¿ªÇؼ®µÈ ¹ÌÁöº¯¼öÀÇ »óÈ£ °£¼· ¿ÀÂ÷¸¦ ÃÖ¼ÒÈ­Çϱâ À§Çؼ­ ¹Ýº¹ ¿ªÇؼ®À» ½Ç½ÃÇϰí, ½ÇÁ¦ Á¸ÀçÇÏ´Â Åͳο¡ ´ëÇÏ¿© Àû¿ë¼º¿¡ ´ëÇØ °ËÅäÇÏ¿´´Ù. ±× °á°ú, ´ÜÃþ ¸ðÇüÈ­º¸´Ù ´ÙÃþ ¸ðÇüÈ­ °á°ú°¡ ½ÇÁ¦ ÁöÇϱ¸Á¶¹°°Åµ¿À» Á¤È®È÷ ³ªÅ¸³ÂÀ¸¸ç ´ÙÃþ °æ°èºÎ¿¡ À§Ä¡ÇÑ ÁöÇϱ¸Á¶¹°ÀÇ ´ÙÃþÁö¹Ý ¸ðÇüÈ­¸¦ ÅëÇÑ ¿ªÇؼ®ÀÌ À¯È¿ÇÔÀ» È®ÀÎÇÏ¿´´Ù.
A core procedure of the direct search method used in this study is optimizing a difference between objective function and real displacement and correcting unknown variables. Because the research procedure comes from back-analyzing of the unknown variable of each layer, back-analyzing results need an additional optimization to minimize interferential effects of unknown variables. Therefore, the direct search method Is used to obtain optimized solutions without a partial differentiation of an objective function. The object of this research is developing the back analysis technique for multi-unknown variables by modeling the soil including underground structure Into upper and lower layer. In order to minimize interferent errors, repeated back analysis is performed and applicability on the real tunnel is examined. Consequently, the multi-layer analysis model is more precise in describing the real behavior of underground structure. It shows the validity of back analysis far multi-layer model which is the understructure placed on multi-layer boundaries.
 
Ű¿öµå
Back analysis;Direct search method;Multi-layer;Multiple unknown variables optimization;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.9, 2009³â, pp.93-100
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200934939599705)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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