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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.6, 2002³â, pp.153-160
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( A Study on the System Identification of Tunnel Lining Using Static Deformation Data )
ÀÌÁؼ®;ÃÖÀÏÀ±; Çѱ¹Ã¶µµ±â¼ú¿¬±¸¿ø;Çѱ¹Ã¶µµ±â¼ú¿¬±¸¿ø;
 
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º» ¿¬±¸¿¡¼­´Â ÅͳΠ³»°øº¯À§ °èÃøµ¥ÀÌÅ͸¦ ÀÌ¿ëÇÑ. ¶óÀÌ´× ±¸Á¶¹°ÀÇ ¼Õ»óµµ Æò°¡±â¹ý¿¡ ´ëÇÏ¿© ³íÀÇÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© Á¤ÀûÀ¸·Î ȹµæµÇ´Â ³»°øº¯À§ µ¥ÀÌÅÍ¿Í ¶óÀÌ´×ÀÇ ÀÚÁßÀ» °í·ÁÇÏ¿© ¶óÀ̴׳» ¹ß»ý°¡´ÉÇÑ ¼Õ»óÀÇ À§Ä¡ ¹× Á¤µµ¸¦ ÆÄ¾ÇÇÒ ¼ö ÀÖ´Â ÀÏÁ¾ÀÇ ¿ªÇؼ® ±â¹ýÀ» µµÀÔÇÏ¿´´Ù. ƯÈ÷ ¶óÀÌ´× ¿ä¼Ò³» °­¼ºµµ¸¦ ÀÏÁ¤¼öÁØ Àú°¨ÇÏ´Â ¸ðÇü 1°ú ºÐ»êÇü ±Õ¿­¸ðµ¨À» ÀÀ¿ëÇÑ ¸ðÇü 2 µî µÎ °¡Áö ¹æ¹ýÀ» °í·ÁÇÏ¿´°í °¢°¢ÀÇ Àå´ÜÁ¡À» ºñ±³.ºÐ¼®ÇÏ¿´´Ù. ÀÌ»óÀûÀÎ ÅͳζóÀÌ´× ±¸Á¶¹°À» °¡Á¤ÇÏ¿© µÎ °¡Áö ¸ðÇü¿¡ ´ëÇÑ ¼öÄ¡ÇØ¼®À» ½Ç½ÃÇÏ¿´À¸¸ç °èÃøµ¥ÀÌÅÍ¿¡ Æ÷ÇԵǴ ³ëÀÌÁîÀÇ ¿µÇâÀ» ÇÔ²² °í·ÁÇÏ¿´´Ù. ÀÌ °á°ú, ¸ðÇü 1ÀÇ °æ¿ì, ³ëÀÌÁîÀÇ ¿µÇâÀº »ó´ëÀûÀ¸·Î ¹Ì¹ÌÇϳª ³»°øº¯À§¿¡ ¹Î°¨ÇÏ°Ô ÀÛ¿ëÇϹǷΠÇöÀåÀû¿ë½Ã ÁÖÀǰ¡ ¿ä±¸µÇ¸ç ¸ðÇü 2ÀÇ °æ¿ì¿¡´Â ³ëÀÌÁî¿¡ ¹Î°¨ÇÏ°Ô ÀÛ¿ëÇÏ´Â ¹Ý¸é °­¼ºµµÀÇ Àú°¨·®ÀÌ ¹Ì¼ÒÇÏ¿© ½ÇÁ¦ ÅͳζóÀÌ´× ±¸Á¶¹°ÀÇ ¼Õ»óÆÄ¾Ç¿¡ ¼Õ½±°Ô Àû¿ëµÉ ¼ö ÀÖÀ½À» º¸¿´´Ù.
A new system identification method based on tunnel deformation data is proposed to find the damage in the lining structure. For this, an inverse problem in which the deformation data and dead load of concrete lining are known a priori is introduced to estimate the degree and location of the damages. Models based on uniform reduction of stiffness and homogenized crack concept are individually employed to compare the applicability and relative advantages of the models. Numerical analyses are peformed for the idealized tunnel structure and the effect of white noise, common in most measurement data, is also included to better understand the suitability of the proposed models. As a result, model 1 based on uniform stiffness reduction method is shown to be relatively insensitive to the noise, while model 2 with the homogenized crack concept is proven to be easily applied to the field situation since the effect of stiffness reduction is rather small.
 
Ű¿öµå
Homogenized crack model;System identification;Tunnel lining;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.6, 2002³â, pp.153-160
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921511407)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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