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Çѱ¹Áö¹Ý°øÇÐȸ / v.13, no.4, 1997³â, pp.163-176
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ÅͳΠÁöº¸Àç·Î¼ °ÝÀÚÁöº¸ÀÇ ÇÏÁßÁöÁö·Â¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸
( An Experimental Study on Load Bearing Capacity of Lattice Girder as a Steel Support in Tunnelling ) |
| À¯Ãæ½Ä;¹è±ÔÁø; Á¤È¸¿ø, ¼º±Õ°ü´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, ¼º±Õ°ü´ëÇб³ Åä¸ñ°øÇаú ¹Ú»ç°úÁ¤¼ö·á, Á¤È¸¿ø, Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç Áö¹Ý¿¬±¸½ÇÀå, Á¤È¸¿ø, Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;
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| NATM Åͳο¡¼ °Áöº¸Àç·Î ÀÌ¿ëµÇ¾îÁö´Â HÇü°Àº ±× µ¿¾È ¸¹Àº ´ÜÁ¡ÀÌ ÁöÀûµÇ¾î ¿ÔÀ¸¸ç, ±× Áß Çϳª´Â ¼ôÅ©¸®Æ® Ÿ¼³½Ã HÇü° flange ¹è¸é¿¡ ¹ß»ýÇÏ´Â °øµ¿À¸·Î ÀÎÇÏ¿© ¼ôÅ©¸®Æ®¸¦ Æ÷ÇÔ ÇÑ ÃʱâÁöº¸ÀçÀÇ ÇÏÁßÁöÁö·Â Àú°¨À» µé ¼ö ÀÖ´Ù. ÀÌ¿Í °°Àº ´ÜÁ¡À» º¸¿ÏÇϱâ À§ÇÏ¿© À¯·´ÀÇ ¸¹Àº ³ª¶ó¿¡¼´Â HÇü° Áöº¸Àç¿Í °°Àº plate girder ÇüÅÂÀÇ Áöº¸Àç¿¡ ºñÇÏ¿© ¸¹Àº ÀåÁ¡À» °¡Áø fat twice girder(°ÝÀÚÁöº¸)¶ó´Â Áöº¸À縦 °³¹ßÇÏ¿© ÇöÀå¿¡ Àû¿ëÇϰí ÀÖ´Ù. ÅͳΠ±¼Âø½Ã °ÝÀÚÁöº¸¸¦ Ãʱâ Áöº¸Àç·Î¼ È¿À²ÀûÀ¸·Î »ç¿ëÇϱâ À§Çؼ´Â ÇÏÁßÁöÁö·Â¿¡ ´ëÇÑ ½ÉµµÀÖ´Â ¿¬±¸°¡ ÇÊ¿äÇÏ´Ù. µû¶ó¼ º» ¿¬±¸¿¡¼´Â °ÝÀÚÁöº¸ÀÇ ÇÏÁßÁöÁö·Â Æò°¡ ¹× °ËÁõÀÇ ÀÏȯÀ¸·Î °ÝÀÚÁöº¸¿¡ ´ëÇÑ ±¼°î½ÃÇè°ú ¾ÐÃà½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ±× °á°ú °ÝÀÚÁöº¸´Â HÇü° Áöº¸Àç¿¡ ºñÇÏ¿© ¿ì¼öÇÑ ÇÏÁßÁöÁö·ÂÀ» º¸À¯ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, µû¶ó¼ ÅͳΠ½Ã°ø½Ã Áöº¸Àç·Î¼ È¿À²ÀûÀ¸·Î Àû¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| It has long been recognized that the H-beam steel rib has many shortcomings when used as a steel support in tunneling. One of the major shortcomings is the shotcrete shadow created behind H-beam flange which eventually reduces the load bearing capacity of shotcrete shell. In many European countries, plate girder as the H-beam steel rib has been replaced by lattice girder which has many advantages over the H-beam steel rib. Successful application of the lattice girder as a steel support requires a thorough investigation on the load bearing capacity of the lattice girder. Therefore, laboratory bending and compression tests were conducted on lattice girders with the aim of investigating the load bearing capacity of the lattice girders. The results of tests show that the load bearing capacity of laIn twice girders is higher than that of H-beams, which indicates that the lattice girder can be effectively used as a support in tunneling. |
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| NATM tunnel;Steel support;Lattice girder;Shotcrete shadow; |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.13, no.4, 1997³â, pp.163-176
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920447570)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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