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Çѱ¹Áö¹Ý°øÇÐȸ / v.12, no.5, 1996³â, pp.27-40
µÇä¿ò(±¼Âø)ÀÇ Çü»ó¿¡ µû¶ó ¸Å¼³¹Ú½º¿¡ À¯¹ßµÇ´Â Åä¾Ð
( Earth Pressures on Box Culvert Induced by Excavation Geometry )
Á¤¼º±³;À±Ä¡°ü; Á¤È¸¿ø, µ¿¾Æ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, µ¿¾Æ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú ¹Ú»ç°úÁ¤, Á¤È¸¿ø, (Àü) µ¿¾Æ´ëÇб³ »ê¾÷´ëÇпø Åä¸ñ°øÇаú ¼®»ç°úÁ¤, Á¤È¸¿ø, ¾ç»êÀü¹®´ëÇÐ Åä¸ñ°ú;
 
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¹Ú½º ±¸Á¶µéÀº »ó.Çϼöµµ°ü, Åë½Å ¹× Àü±â¼±·Î, µµ·Î, öµµ µîÀ» À§ÇÑ ¿©·¯°¡Áö ¸ñÀûÀ¸·Î ¿À·¡ ÀüºÎÅÍ ¸¹ÀÌ »ç¿ëµÇ¾î ¿Ô´Ù. µµ½ÉÁö¿¡¼­´Â ´ëºÎºÐ Áö¹ÝÀ» ±¼ÂøÇÏ¿© ¹Ú½º ±¸Á¶¹°À» ¼³Ä¡ÇÑ ÈÄ¿¡ µÇä¿òÇÏ´Â °úÁ¤À» °ÅÄ£´Ù. ±×·¯³ª ¹Ú½º¿¡ ÀÛ¿ëÇÏ´Â Åä¾ÐÀ» À§ÇÑ ±âÁ¸ÀÇ ¼³°è¹ý¿¡¼­´Â ±¼Âø(¶Ç´Â µÇä¿ò)µÇ´Â ´Ü¸éÀÇ Çü»óÀ» °í·ÁÇÏÁö ¸øÇϰí ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ¸Å¼³¹Ú½º ¼³°è½Ã ±¼ÂøµÇ´Â ´Ü¸éÇü»óÀ» °í·ÁÇÒ ¼ö ÀÖ´Â »õ·Î¿î Åä¾ÐÀ̷нÄÀ» Á¦¾ÈÇÏ¿´´Ù. ÀÌ À̷нĿ¡ ÀÇÇÑ ¼öÆòÅä¾ÐÀº À¯ÇÑ¿ä¼ÒÇØ¼® °á°ú¿Í ºñ±³Àû ÁÁÀº ÀÏÄ¡¸¦ º¸¿© ÁÖ¾úÀ¸³ª, ±âÁ¸¼³°è¹ý¿¡ ÀÇÇÑ Åä¾ÐÀº »ó´çÈ÷ °ú´ëÆò°¡µÇ¾ú´Ù. ¹Ú½ºÀÇ »ó´Ü¸é¿¡ ÀÛ¿ëÇÏ´Â ¿¬Á÷ÀÀ·ÂÀÇ À̷аªÀº ±âÁ¸ ¼³°è¹ý ¹× À¯ÇÑ¿ä¼ÒÇØ¼® °á°ú¿Í °ÅÀÇ À¯»çÇÏ¿´´Ù. ±×·¯³ª ¹Ú½ºÀÇ ¹Ù´Ú¸é¿¡ ÀÛ¿ëÇÏ´Â ¹Ý¹ßÀÀ·ÂÀº ±âÃÊÁö¹ÝÀÇ Åº¼º°è¼ö¿¡ µû¶ó Å©°Ô Á¿ìµÇ¹Ç·Î, »õ·Î¿î À̷нÄÀº ±âÃÊÁö¹ÝÀÌ ´À½¼ÇÑ ¸ð·¡ÀÎ °æ¿ì¸¦ Á¦¿ÜÇϸé Á÷Á¢ Àû¿ëÀÌ ¾î·Á¿ü´Ù. ÇÑÆí, À¯ÇÑ¿ä¼ÒÇØ¼®¿¡ ÀÇÇÏ¸é ¹Ú½º¿¡ ÀÛ¿ëÇÏ´Â ¼öÆòÅä¾ÐÀº ±¼Âø¸éÀÇ °æ»ç¿Í ±¼ÂøÀú¸éÀÇ Æø¿¡ µû¶ó Å©°Ô Á¿ìµÇ¾ú´Ù.
Box culvert has long since been used for various purposes , water and sewerage works, communication and electricity facilities, subway, railway, etc. In urban area, the construetion of box culvert generally consists of excavation-installation of the culvert-backfill. However, the existing design methods for earth pressure on the box culvert do not take into account the excavation(or backfill) geometry. ' A new method considering excavation geometry for earth pressure on box culvert is suggested here. The lateral earth pressures by the newly suggested method agree relatively with results of finite element analyses, but those of existing method are greatly overestimated. The vertical pressure on the top of the box culvert by the new method is similar to those of existing method and finite element analysis. However, the reactional pressure on the bottom of the box culvert depends largely upon the stiffness of the foundation soil. The reactional pressure by the new method agrees well with that of finite element analysis, only when the stiffness is low. From the finite element analysis it is shown that the lateral earth pressure on box culvert depends upon the excavated slope (G) and the net bottom distance (Bc).
 
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Box culvert;Earth pressure;Analytical method;Finite element method;Excavation geometry;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.12, no.5, 1996³â, pp.27-40
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920446808)
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