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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.6, 2003³â, pp.245-259
ÅͳΠº¸°­¿ë °­°ü ´Ù´Ü ±×¶ó¿ìÆÃ °ø¹ýÀÇ À̹漺 º¸°­ ¸ÞÄ«´ÏÁò ±Ô¸í¿¡ °üÇÑ ¿¬±¸
( A Study on Anisotropic Reinforcing Mechanism of Umbrella Arch Reinforcement Method in Tunnelling )
¹è±ÔÁø;½ÅÈÞ¼º;ÃÖ¿ë±â; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø, Áö¹Ý¿¬±¸ºÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø, Áö¹Ý¿¬±¸ºÎ;´ë¿øÅäÁú¢ß;
 
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º» ³í¹®Àº °­°ü ´Ù´Ü ±×¶ó¿ìÆÃ ÅͳΠº¸°­¿¡ ´ëÇÑ ¸ÞÄ«´ÏÁò ±Ô¸í¿¡ ´ëÇÑ ¿¬±¸ÀÌ´Ù. º» º¸°­°ø¹ýÀ» ±¸¼ºÇϰí ÀÖ´Â º¸°­¿ä¼ÒµéÀÇ º¹ÀâÇÑ ±âÇÏÇÐÀû Ư¼º°ú °¢ º¸°­¿ä¼ÒµéÀÌ Àüü º¸°­ ¸ÞÄ«´ÏÁò¿¡ ±â¿©ÇÏ´Â Á¤µµÀÇ ºÒ¸íÈ®¼º¿¡ ±âÀÎÇÏ¿© º» °ø¹ýÀ¸·Î º¸°­µÈ ÅͳÎÀ» ÇÕ¸®ÀûÀ¸·Î ÇØ¼®Çϱâ¶õ ¹«Ã´ ¾î·Á¿î ¹®Á¦·Î ¿©°ÜÁö°í ÀÖ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â ±ÕÁúÈ­ ±â¹ýÀ» µµÀÔÇÏ¿© º» °ø¹ýÀ¸·Î º¸°­µÈ Áö¹Ý¸ÅÁúÀ» ÇϳªÀÇ º¹ÇÕü·Î½á Á¤ÀÇÇÏ°í ¼öÄ¡ ¸ðµ¨È­ÇÏ¿©, À̸¦ ±â¹ÝÀ¸·Î 3Â÷¿ø ź¼Ò¼º À¯ÇÑ¿ä¼ÒÄڵ带 °³¹ßÇÏ¿´´Ù. À̶§ ±ÕÁúÈ­ ±â¹ý°ú ¿¬°èµÈ ±¼Âø´Ü°èº° ÇØ¼® µî°ú °°Àº ÅͳÎÇØ¼®À» À§ÇØ ¿ä±¸µÇ´Â ´Ù¾çÇÑ ½Ç¿ëÀûÀÎ ¾Ë°í¸®Áòµé ¶ÇÇÑ Á¦¾ÈµÇ¾ú´Ù. ÀÌ·¯ÇÑ °úÁ¤À¸·Î °³¹ßµÈ 3Â÷¿ø ź¼Ò¼º À¯ÇÑ¿ä¼ÒÄڵ带 ÀÌ¿ëÇÏ¿© º» º¸°­°ø¹ýÀÇ À̹漺 º¸°­ ¸ÞÄ«´ÏÁò¿¡ °üÇÏ¿© °íÂûµÇ¾úÀ¸¸ç, À̸¦ À§ÇØ ´Ù¾çÇÑ ÁÖ¿ä ¼³°èÀÎÀڵ鿡 ´ëÇÑ ¸Å°³º¯¼ö ¿¬±¸°¡ ¼öÇàµÇ¾ú´Ù. À̸¦ ÅëÇØ À¯µµµÈ º¹ÇÕ º¸°­ Áö¹ÝüÀÇ ¿ªÇÐÀû °Åµ¿Æ¯¼ºÀº °¢ ±¸¼º ¸ÅÁúµéÀÇ ±âÇÏÇÐÀû Ư¼º°ú ±â¿©µµ µîÀ» Àß ¸ð»çÇϰí ÀÖ´Â °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
This paper deals with an Umbrealla Arch Reinforcement Method (UARM) in tunnelling. It is known that the mechanism of the reinforcement system is too complex to be simulated in existent finite element (FE) frameworks when considering its complex geometry of pipe arrangements and contribution of each component of the reinforcement to reinforcing effect. In this study a 3-D elastoplastic FE procedure is, therefore, proposed by introducing homogenisation technique, which is used to define mathematically elastic as well as elastoplastic characteristics of a reinforced ground material as a composite. A number of practical suggestions are addressed considering staged constructions of tunnels. For illustrative purposes, a series of parametric studies are undertaken and anisotropic characteristics of the reinforced ground as well as effects of the reinforcement on tunnel convergences are investigated. It is found that the reinforced ground material defined in homogenisation framework has its mechanical characteristics reasonably representing inherent geometrical and quantitative characteristics of each of constituents.
 
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Homogenization technique;Three-dimensional elastoplastic finite element analysis;Tunnel reinforcements;Umbrella arch reinforcement method;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.6, 2003³â, pp.245-259
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922148016)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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