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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.1, 2008³â, pp.61-70
¸ðÇü½ÃÇè°ú ¼öÄ¡ÇØ¼®À» ÀÌ¿ëÇÑ ÀúÅäÇÇ ÅͳÎÀÇ º¯Çü°Åµ¿¿¡ °üÇÑ ¿¬±¸
( Deformation Analysis of Shallow Tunnel Using Tunnel Model Test and Computational Analysis )
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ÁöÇ¥¸é ħÇÏ·®, ħÇÏ ±â¿ï±â ±×¸®°í ÅͳÎÁÖº¯ÀÇ Áö¹Ý º¯À§¿¡ ´ëÇÑ °ü¸®¿Í ¿¹ÃøÀº µµ½ÉÁö ÀúÅäÇÇ ÅͳÎÀÇ ¼³°è¿Í ½Ã°ø¿¡¼­ ÁÖ¿äÇÑ ÀÎÀÚ°¡ µÈ´Ù. ÀúÅäÇÇ Åͳο¡¼­ÀÇ ±¼Âø¿¡ µû¸¥ º¯Çü ÇØ¼®Àº ÅÍ³Î Ãøº®ºÎ¿¡¼­ ÁöÇ¥ºÎ±îÁö ¹ß´ÞÇÏ´Â Àü´Ü´ëÀÇ º¯ÇüƯ¼ºÀ» ÆÄ¾ÇÇÏ´Â °ÍÀÌ Áß¿äÇÏ´Ù. º» ¿¬±¸´Â 2Â÷¿ø ½Ç³» ÅͳΠ¸ðÇü½ÇÇè°ú Àü´Ü ź¼º°è¼ö ¹× °­µµ Á¤¼öÀÇ ÀúÇϸ¦ °í·ÁÇÑ º¯Çü·ü ¿¬È­¸ðµ¨ ÇØ¼®À» ÅëÇÏ¿© ¹Ì°í°á ÀúÅäÇÇ Åͳο¡¼­ÀÇ ±¼ÂøÀ¸·Î ÀÎÇÑ º¯Çü °Åµ¿ Ư¼ºÀ» ±Ô¸íÇØ º¸¾Ò´Ù. º¯Çü·ü ¿¬È­¸ðµ¨À» ÀÌ¿ëÇÑ ¼öÄ¡ÇØ¼®°ú ¸ðÇü ÅͳΠ½ÇÇè°úÀÇ ºñ±³¿¡¼­ ÁöÇ¥¸é ħÇÏ, õ´ÜħÇÏ ±×¸®°í Àü´Ü´ëÀÇ ¹ß´ÞÇüÅ¿¡¼­ ºÎÇյǴ °á°ú°¡ ³ªÅ¸³µ´Ù. º» ¿¬±¸¿¡¼­ º¯Çü·ü ¿¬È­¸ðµ¨Àº ÀúÅäÇÇ ÅͳÎÀÇ ºñ¼±Çü º¯ÇüÇØ¼®¿¡ ´ëÇÏ¿© Àû¿ë¼ºÀÌ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
The control and prediction of surface settlement, gradient and ground displacement are the main factors in shallow tunnel design and construction in urban area. For deformation analysis of shallow tunnel due to excavation it is important to identify possible deformation mechanism of shear bands developing from tunnel shoulder to the ground surface. This paper investigaties quantitatively the deformation behavior of shallow tunneling by model tunnel test and strain softening analysis Incorporating the reduction of shear stiffness and strength parameters. The comparison of model tunnel test result and numerical simulation using strain softening analysis showed good agreement in crown settlement, normalized subsidence settlement and developing shear bands above tunnel shoulder. In this study, it is blown that the strain softening modeling is applicable to the nonlinear deformation analysis of shallow tunnel.
 
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Deformation behavior;Model tunnel test;Shallow tunnel;Strain softening analysis;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.1, 2008³â, pp.61-70
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200810737054306)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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