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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.11, 2007³â, pp.5-14
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2-Arch ÅͳΠÁß¾Óº®Ã¼ ÀÛ¿ëÇÏÁß »êÁ¤¿¡ °üÇÑ ¿¬±¸
( A Study on the Evaluation of the Loads Acting on the Pillar in Two-Arch Tunnel ) |
| ¿À±Ôö;õº´½Ä;µµÁ¾³²; °æ³²±â¾÷(ÁÖ);ÇѾç´ëÇб³ Åä¸ñ°øÇаú;ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
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| º» ¿¬±¸¿¡¼´Â 2-Arch ÅͳÎÀÇ Áß¾Óº®Ã¼ ÀÛ¿ëÇÏÁß »êÁ¤¿¡ ¾²¿©Áö´Â MatsudaÀÇ Á¦¾È½ÄÀ» °ËÅäÇÏ¿© ¹®Á¦Á¡À» ºÐ¼®ÇÏ¿´À¸¸ç, ÇöÀåÁö¹ÝÁ¶°ÇÀ» ¹Ý¿µÇÏ´Â ¼³°èÁ¤¼ö »êÁ¤À» À§ÇØ ¼öÄ¡ÇØ¼®À» ¼öÇàÇÏ¿© MatsudaÀÇ Á¦¾È½Ä¿¡ °è¼ö ${alpha}$¸¦ Á¦¾ÈÇÏ¿© 2-Arch ÅͳΠÁß¾Óº®Ã¼ ÀÛ¿ëÇÏÁßÀ» Àç»êÁ¤ÇÏ¿´´Ù. Áö¹Ý+Áß¾Óº®Ã¼ÀÇ ¼öÄ¡ÇØ¼® °á°ú, Áß¾Óº®Ã¼ ½Ã°ø ÈÄ ¼±ÇàÅͳΠ±¼Âø¿¡ ÀÇÇØ Áß¾Óº®Ã¼´Â ÆíÃøÀ¸·Î ÀÀ·ÂÀÌ ÁýÁߵǴ Çö»óÀ» º¸¿´À¸¸ç ÅͳΠ±¼Âø ¿Ï·á ÈÄ Áß¾Óº®Ã¼ ÀÀ·Â°ú ºñ±³ÇØ ¾Ï¹ÝÀÌ ºÒ·®ÇÑ °æ¿ì ÃÖ´ë 86.5%ÀÇ ÀÀ·ÂÀÌ ºÒ±ÕµîÇÏ°Ô ±¹ºÎÀûÀ¸·Î ¹ßÇöµÇ¾ú´Ù. ÁÖº¯Áö¹ÝÀÇ Æ¯¼º¿¡ µû¸¥ Áß¾Óº®Ã¼ ÀÛ¿ëÇÏÁßÀ» ¼öÄ¡ÇØ¼®À¸·Î °ËÅäÇÑ °á°ú Á¦¾È½Ä¿¡ ºñÇØ $14{sim}83%$ÀÇ ÇÏÁßÀÌ °¨¼ÒµÇ¾úÀ¸¸ç, À̸¦ ¹ÙÅÁÀ¸·Î ÇÏÁß°¨¼Ò°è¼ö(${alpha}$)¸¦ »êÁ¤ÇÏ¿´´Ù. ÇâÈÄ 2-Arch ÅͳΠ¼³°è ½Ã ÇÏÁß°¨¼Ò°è¼ö(${alpha}$)¸¦ Àü¿ëÇϸé 2-Arch ÅͳΠÁß¾Óº®Ã¼ ±¸Á¶¹°ÀÇ °ú´Ù ¼³°è¸¦ ÇÇÇÏ°í ¾ÈÁ¤¼º ¹× °æÁ¦¼ºÀ» È®º¸ÇÒ ¼ö ÀÖÀ» °ÇÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| In this study, Matsuda formula used to evaluate the loads acting on the pillar was investigated and load reduction factor(${alpha}$) was evaluated by numerical analysis to better apply for the design. From the results, normal stress was concentrated to one side due to excavation of preceding tunnel after construction of pillar. And 86.5% of maximum normal stress was revealed partly unequally when the ground was poor. By numerical analysis, $14{sim}83%$ of total loads calculated by Matsuda formula decreased and then, from these results, load reduction factor(${alpha}$) was estimated. From now on, stability and economic aspects could be guaranteed by applying the load reduction factor(${alpha}$). |
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| Ű¿öµå |
| Continuous analysis;Load reduction factor;Matsuda formula;Pillar;Two-arch tunnel; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.11, 2007³â, pp.5-14
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414118906)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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