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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.7, 2005³â, pp.43-54
ºñ±¸¼Ó È帧Á¶°ÇÇÏ¿¡ ÀÖ´Â ¹è¼öÇü ÅͳÎÀÇ °Åµ¿
( Behaviour of Leaking Tunnels under Unconfined Flow Condition )
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ÁöÇϼöÀ§ ¾Æ·¡¿¡¼­ÀÇ Åͳα¼ÂøÀº ÁöÇϼö ¿µ¿ªÀÇ º¯È­¸¦ ÃÊ·¡ÇÏ°Ô µÇ°í, ÁöÇϼöÀÇ °ø±ÞÀÌ ÃæºÐÇÏ°Ô ÀÌ·ç¾îÁöÁö ¾Ê´Â °æ¿ì ÀÚÀ¯¼ö¸éÀÇ Çϰ­Çö»óÀÌ ¹ß»ýÇÏ°Ô µÈ´Ù. ÀÌ·¯ÇÑ °Åµ¿À» ¼öÄ¡ ÇØ¼®ÀûÀ¸·Î ¸ð»çÇϱâ À§Çؼ­´Â ÀÚÀ¯¼ö¸éÀ§ÀÇ ºÒÆ÷È­Åä °Åµ¿À» Æ÷ÇÔÇÏ´Â ÀÚÀ¯¼ö¸éÀÇ º¯È­¸¦ °í·ÁÇϱâ À§ÇÑ º¹ÀâÇÑ ÇØ¼® ¾Ë°í¸®ÁòÀ» äÅÃÇÏ¿©¾ß Çϰí, ºÒÆ÷È­ ÅäÀÇ ¼ö¸®°Åµ¿À» Æ÷ÇÔÇϹǷΠÅë»ó ±¸¼ÓÈ帧Á¶°ÇÀ¸·Î °¡Á¤ÇÏ¿© ÇØ¼®ÇÏ°Ô µÈ´Ù. ±×·¯³ª ÀÌ ¹æ¹ýÀº ½ÇÁ¦ ¸¹Àº »óȲ¿¡¼­ ¹ß»ýÇÏ´Â ÁöÇϼöÀ§ ÀúÇϸ¦ °í·ÁÇÏÁö ¸øÇϸç ÁöÇϼöÀ§ ÀúÇϰ¡ ÅͳΠ¹× ÁÖº¯Áö¹ÝÀÇ °Åµ¿¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ÆÄ¾ÇÇÏ±â ¾î·Æ´Ù. º» ¿¬±¸¿¡¼­´Â ºñ±¸¼Ó È帧Á¶°ÇÇÏÀÇ ÁöÇϼöÀ§ ¾Æ·¡ ¹è¼öÇü ÅͳÎÀ» °Ç¼³ÇÏ´Â °æ¿ì ÁöÇϼö ¿µ¿ªÀÇ º¯È­¿Í ÀÌ º¯È­°¡ Åͳΰú Áö¹Ý¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¼öÄ¡ ÇØ¼®Àû ¸ðµ¨¸µ ¹æ¹ýÀ» ÅëÇÏ¿© ÆÄ¾ÇÇϰí, À̸¦ Åë»óÀû ÇØ¼®¹æ¹ýÀÎ ±¸¼ÓÁ¶°ÇÀÇ È帧°ú ºñ±³ °íÂûÇÏ¿´´Ù. ÇØ¼®°á°ú ÁöÇϼöÀ§ º¯È­´Â ÁöÇ¥, ƯÈ÷ ÁöÇϼöÀ§ »óºÎÀÇ °Åµ¿¿¡´Â Áö´ëÇÑ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖÁö¸¸ ÅͳζóÀÌ´× °Åµ¿Àº ±¸¼ÓÈ帧ÀÇ °æ¿ì¿Í °ÅÀÇ Â÷À̰¡ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Tunnelling in a water bearing soil may cause draw-down of ground water table. Modelling of this problem requires considering the change of phreatic surface including the stress constitutive relationship for an unsaturated soil. However, it is normally assumed that ground water is confined. Numerical formulation of coupled behavior considering phreatic surface is described and implemented into computer program. Influence of unconfined flow on tunnel and ground is thoroughly investigated and compared with that of confined flow condition. It is identified that ground and lining behaviour below phreatic surface is almost the same as that under confined flow conditions, however, there is considerable difference in ground behaviour above phreatic surface. It is generally concluded that the assumption of confined flow is acceptable in terms of lining design.
 
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Coupled analysis;Leaking tunnel;Phreatic surface;Unconfined flow;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.7, 2005³â, pp.43-54
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200502637765753)
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