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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.7, 2011³â, pp.35-45
¼öÄ¡ÇØ¼®À» ÅëÇÑ ÀÌ¿ÏÇÏÁß¿¡ µû¸¥ ÅͳΠ¶óÀÌ´×ÀÇ °Åµ¿ ºÐ¼®
( Numerical Analysis of Tunnel Lining under Loosening Load )
¹ÚÁ¤Áø;±è¿ë¹Î;ȲÅÃÁø;Á¤»ó¼¶; ¿¬¼¼´ëÇб³ Åä¸ñ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñ°øÇаú;µ¿ÀÇ´ëÇб³ Åä¸ñ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ÄÜÅ©¸®Æ® ¶óÀÌ´×ÀÇ ¼³°è°³³äÀ» ¸íÈ®È÷ Á¤¸³ÇÏ¿© ¶óÀÌ´×»Ó¸¸ ¾Æ´Ï¶ó ÁÖÁöº¸ÀçÀÇ °æÁ¦ÀûÀÎ ¼³°è ¹× ½Ã°øÀÌ °¡´ÉÅä·Ï Çϱâ À§ÇÏ¿©, ÄÜÅ©¸®Æ® ¶óÀ̴׿¡ ÀÛ¿ëÇÏ´Â Áö¹ÝÀÌ¿ÏÇÏÁßÀ» TerzaghiÀÇ ÀÌ·ÐÀû ¹æ¹ý°ú ¼öÄ¡ÇØ¼® ¹æ¹ýÀ» ÀÌ¿ëÇÑ ´Ù¾çÇÑ ÇØ¼®¹æ¹ý¿¡ µû¶ó ºñ±³ÇÏ¿´´Ù. ±×¸®°í dzȭÅä, dzȭ¾Ï¿¡¼­ÀÇ °¢Áö ´Ù¸¥ Áö¹ÝÁ¶°Ç°ú Ãø¾Ð°è¼ö($K_0$) º¯È­¿¡ µû¸¥ ÅͳΠÄÜÅ©¸®Æ® ¶óÀ̴׿¡ ÀÛ¿ëÇÏ´Â Áö¹ÝÀÌ¿ÏÇÏÁßÀ» ºñ±³ ºÐ¼®ÇÏ¿´´Ù. º» ¿¬±¸ °á°ú, TerzaghiÀÇ Áö¹ÝÀÌ¿ÏÇÏÁßÀº ¼öÄ¡ÇØ¼® °á°úº¸´Ù ´Ù¼Ò Å©°Ô ³ª¿À´Â °æÇâÀÌ ÀÖ¾ú°í dzȭ¾Ïº¸´Ù dzȭÅä¿¡¼­ ´Ù¼Ò Å« Áö¹ÝÀÌ¿ÏÇÏÁßÀÌ »êÁ¤µÇ¾ú´Ù. ¶ÇÇÑ, Ãø¾Ð°è¼ö°¡ Áõ°¡ÇÒ¼ö·Ï ÅͳΠ¶óÀ̴׿¡ ¹ÌÄ¡´Â ´Ü¸é·ÂÀº TerzaghiÀÇ À̷нÄÀ» »ç¿ë ½Ã Ãø¾Ð°è¼ö°¡ Áõ°¡ÇÒ¼ö·Ï °¨¼ÒÇÏ´Â ¹Ý¸é ¼öÄ¡ÇØ¼® ¹æ¹ýÀ» »ç¿ë ½Ã ±× Áõ°¨ ¿µÇâÀº ¹Ì¹ÌÇÏ¿´´Ù.
Cost effective design and construction are necessary to establish the design concept of tunnel lining. Loosening load acting on the concrete lining is compared with Terzaghi tunnel theory and numerical analysis. It is analyzed under the condition of weathered rock and soil with varying in-situ stress ratio ($K_0$). Based on the result, loosening load calculated by Tcrzaghi tunnel theory is much greater than numerical analysis results. And the load calculated in weathered soil is lager than weathered rock condition. As in-situ stress ratio increases, the stress acting on the tunnel lining decreases in Terzaghi theory rapidly, whereas there is little effect in numerical analysis.
 
Ű¿öµå
Concrete lining;In-situ stress ratio ($K_0$);Loosening load;NATM;Terzaghi tunnel theory;Unbalanced force;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.7, 2011³â, pp.35-45
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201128563052711)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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