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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.5, 2002³â, pp.221-228
ÅͳΠ±¼ÁøÀ²À» °í·ÁÇÑ ¸·Àå¿¡¼­ÀÇ Ä§Åõ·Â¿¡ °üÇÑ ¿¬±¸
( Study on the Seepage Forces Acting on the Tunnel Face with the Consideration of Tunnel Advance Rate )
³²¼®¿ì;ÀÌÀθð; °í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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ÅͳΠ±¼Âø½Ã ¸·ÀåÀÇ ¾ÈÁ¤¼ºÀº ÁÖº¯Áö¹Ý ¹× ÅͳΠÁöº¸ÀçÀÇ ¾ÈÁ¤¼º°ú ¾Æ¿ï·¯ °¡Àå Áß¿äÇÏ°Ô Æò°¡µÇ¾î¾ß ÇÒ ¿ä¼Ò ÁßÀÇ ÇϳªÀÌ´Ù. ƯÈ÷ ÅͳÎÀÌ ÁöÇϼöÀ§ ÇÏ¿¡¼­ ½Ã°øµÉ °æ¿ì ÁöÇϼö È帧¿¡ µû¶ó ÅͳΠ¸·Àå¿¡¼­ ¹ß»ýÇÏ°Ô µÇ´Â ħÅõ·ÂÀº ÅͳΠ¸·ÀåÀÇ ¾ÈÁ¤¼º¿¡ ½É°¢ÇÑ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Ù. µû¶ó¼­ º» ħÅõ·ÂÀº ÅͳΠ¼³°è ¹× ½Ã°ø½Ã ÅͳΠ¸·ÀåÀÇ ¾ÈÁ¤¼º Ãø¸é¿¡¼­ Áß¿äÇÏ°Ô Æò°¡µÇ¾î¾ß ÇÒ ¿ä¼ÒÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â ÁöÇϼöÀ§ ÇÏ¿¡¼­ ÅͳÎÀÌ ½Ã°øµÉ °æ¿ì ¹ß»ýÇϴ ħÅõ·Â°ú °ü·ÃÇÏ¿© ÅͳΠ±¼ÁøÀ²ÀÌ º» ĨÅõ·Â¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇØ¼­ ¾ð±ÞÇÏ¿´´Ù. ÅͳΠ±¼ÁøÀ²À» °í·ÁÇÑ ÁöÇϼö Èå¸§ÇØ¼®À» À§ÇÏ¿© À¯ÇÑ¿ä¼Ò ÇØ¼® ÇÁ·Î±×·¥ÀÌ °³¹ßµÇ¾ú´Ù. º» ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© ÅͳΠ±¼ÁøÀ² ¹× Áö¹ÝÀÇ Åõ¼öƯ¼ºÀÌ ÅͳΠ¸·Àå¿¡ ÀÛ¿ëÇϴ ħÅõ·Â¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¸Å°³º¯¼ö ºÐ¼®À» ÅëÇÏ¿© ¿¬±¸ÇÏ¿´´Ù. º» ¿¬±¸°á°ú, ÅͳΠ±¼ÁøÀ²Àº ÅͳΠ¸·Àå¿¡ ÀÛ¿ëÇϴ ħÅõ·ÂÀ» Æò°¡Çϴµ¥ À־ Áß¿äÇÑ Ãß°¡µÈ ¿ä¼Ò·Î °í·ÁµÇ¾î¾ß Çϸç, °á·ÐÀûÀ¸·Î ÅͳΠ¸·ÀåÀÇ ¾ÈÁ¤¼ºÀ» À¯ÁöÇϱâ À§ÇÑ Áöº¸¾ÐÀÇ ÇÕ¸®ÀûÀÎ »êÁ¤À» À§ÇÑ ¹æ¹ý·ÐÀ» Á¦½ÃÇÒ ¼ö ÀÖ¾ú´Ù.
The stability of a tunnel face is one of the most important factors in tunnel excavation. Especially, if a tunnel is located under groundwater level, groundwater may flow into the tunnel face and seepage forces acting on the tunnel face due to groundwater flow may affect seriously the stability of the tunnel face. Therefore, the seepage pressure at the tunnel face should be considered fir the proper design and safe construction of a tunnel. In this paper, the effect of tunnel advance rate on the seepage forces acting on the tunnel face was studied. The finite element program to analyze the groundwater flow around a tunnel with the consideration of tunnel advance rate was developed. Using the program, the parametric study for the effect of the tunnel advance rate and hydraulic characteristics of the ground on the seepage forces acting on the tunnel face was made. From this study, it was concluded that the tunnel advance rate must betaken into consideration as an additional parameter to assess the seepage forces at the tunnel face and a rational design methodology fer the assessment of support pressures required for maintaining the stability of the tunnel face was suggested for undetwater tunnels.
 
Ű¿öµå
Face stability;Seepage force;Tunnel advance rate;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.5, 2002³â, pp.221-228
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921407902)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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