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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.2, 2002³â, pp.65-74
Çѹݵµ 3Â÷¿ø ÁöÁßÀÀ·ÂÀÇ ºÐÆ÷¿Í À̸¦ °í·ÁÇÑ ÅͳÎÇØ¼®¿¡ ´ëÇÑ ¿¬±¸
( Three Dimensional In-situ Stress Distribution in the Southern Korean Peninsula and Its Application in Tunnel Analysis )
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ÁöÁßÀÀ·ÂÀÇ ÃøÁ¤Àº ÅͳΠ¹× ÁöÇϱ¸Á¶¹°ÀÇ º¯À§¿Í ÀÀ·ÂºÐÆ÷¸¦ ¿¹ÃøÇϴµ¥ Áß¿äÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â ³²ºÎ Çѹݵµ Áö¿ªÀÇ ÁöÁßÀÀ·Â ºÐÆ÷¸¦ À½·ÂÇØ¹æ¹ý°ú ¼ö¾ÐÆÄ¼â¹ýÀ¸·Î ÃøÁ¤µÈ »õ·Î¿î 380°³ÀÇ ÀڷḦ ÅëÇÏ¿© ÀçÆò°¡¿Í À̸¦ °í·ÁÇÑ »ïÂ÷¿ø ÅͳÎÇØ¼®À» ½Ç½ÃÇÏ¿´´Ù. ÁöÁßÀÀ·ÂºÐÆ÷ÀÇ °á°ú¿¡ ÀÇÇÏ¸é º¯¼º¾Ï°ú È­°­¾ÏÁö¿ªÀÇ ¼öÆòÀÀ·ÂºÐÆ÷´Â ÅðÀû¾Ï°ú È­»ê¾ÏÀÇ ºÐÆ÷¿¡ ºñÇÏ¿© ºÒ±ÔÄ¢ÇÑ °æÇâÀ» º¸À̰í ÀÖ´Ù. È­»ê¾Ï Áö¿ª¿¡¼­´Â ¼öÁ÷ÀÀ·Â¿¡ ´ëÇÑ ¼öÆòÀ½·ÂÀÇ ºñ(Ãø¾Ð°è¼ö, K)´Â 150m ±íÀÌ ÀÌ»ó ½Éµµ¿¡¼­ 1º¸´Ù ÀÛ´Ù. ¶ÇÇÑ, ±¹³»¿¡¼­´Â óÀ½À¸·Î ÃøÁ¤µÈ ÁöÁßÀÀ·Â¿¡ ´ëÇÑ »ïÂ÷¿ø ¹æÇâ°ú Å©±â¸¦ µ¿½Ã¿¡ ±×¸²À¸·Î ³ªÅ¸³»¾ú´Ù. »ïÂ÷¿ø ÅÍ³Î ÇØ¼®¿¡ ÀÇÇϸé, ÅͳΠÁÖº¯ÀÇ º¯À§¿¡ ´ëÇÑ ¹æÇâ°ú Å©±â´Â ÃÖ´ë¼öÆòÀ½·Â°ú ÃÖ¼Ò¼öÆòÀÀ·ÂÀÇ Â÷ÀÌ¿¡ ÀÇÇÏ¿© ÁÖ·Î ¿µÇâÀ» ¹Þ°í ÀÖ´Ù.
The measurement of in-situ stress is essential to estimate the ground displacement and the stress distribution of a tunnel and an underground structure. In this study, the in-situ stress distribution of the Southern Korean peninsula was re-evaluated by the new 380 in-situ data which were determined by overcoring and hydrofracturing methods, and the three-din erosional numerical analysis of tunnelling was performed. The results of in-situ stress distribution show that the distribution of horizontal stress tends to be more irregular in metamorphosed(gneiss) and granite areas than in sedimentary and volcanic areas. The ratio of horizontal to vertical stresses(K-value) in volcanic area is less than 1 below the depth of 150m. The direction and magnitude of three dimensional in-situ stresses were shown simultaneously in a figure for the first time in Korea. The three-dimensional numerical analysis of tunnelling indicates that the orientation and magnitude of displacement around a tunnel are controlled mainly by the difference between the maximum and minimum horizontal stresses.
 
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3-D numerical analysis;In-situ stress;K-value;Orientation of in-situ stress;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.2, 2002³â, pp.65-74
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921044119)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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