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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.2, 2003³â, pp.39-48
Åͳνðø¿¡¼­ÀÇ ºÒ¿¬¼Ó¸éÀÇ ¿¬¼Ó¼ºÀ» °í·ÁÇÑ ¾Ï¹Ýºí·°ÀÇ °Åµ¿¼º ¹× ¾ÈÁ¤¼º ÇØ¼®±â¹ý
( Removability and Stability Analysis Method of Rock Blocks Considering Discontinuity Persistence in Tunnel Constructions )
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ºí·°À̷п¡¼­´Â ºÒ¿¬¼Ó¸éÀÇ À¯ÇÑÇÑ ¿¬¼Ó¼ºÀ» ¹«½ÃÇÏ¿© ºÒ¿¬¼Ó¸éÀÌ ¾Ï¹Ý³»¿¡¼­ ¹«ÇÑÀÌ ¿¬¼ÓµÇ¾îÁø´Ù°í °¡Á¤ÇÏ¿´´Ù. º» ³í¹®¿¡¼­´Â ÅͳνðøÀÇ ¾ÈÁ¤¼º Æò°¡±â¹ýÀ¸·Î ºÒ¿¬¼Ó¸éÀÇ À¯ÇÑÇÑ ¿¬¼Ó¼ºÀ» °í·ÁÇÑ Å°ºí·° ÇØ¼®±â¹ýÀ» Á¦¾ÈÇϰí, ½ÇÁ¦ÀÇ ÇöÀå¿¡ Àû¿ëÇß´Ù. ºÒ¿¬¼Ó¸é ¿ø¹Ý ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ºÒ¿¬¼Ó¸éÀÇ ¿¬¼Ó¼ºÀ» °í·ÁÇÑ 3Â÷¿ø ¾Ï¹Ýºí·°ÀÇ »ý¼ºÀ» ÆÇÁ¤ÇÏ¿´´Ù. ÀÌ ÆÇÁ¤±â ¹ýÀº ºí·°ÀÇ Çü»ó¿¡ °ü°è¾øÀÌ ¸ðµç Çü»óÀÇ ºí·°ÀÌ Àνİ¡´ÉÇÏ¿© º¹ÀâÇÑ ±¼Âø¸éÀÇ ¹®Á¦¿¡ Àû¿ë°¡´É ÇÏ´Ù. ÆÇÁ¤µÈ ¾Ï¹Ýºí·°¿¡ ´ëÇØ¼­ °Åµ¿¼º ¹× ¾ÈÁ¤¼ºÀ» ÇØ¼®ÇÏ¿´´Ù. ½ÇÁ¦ °Ç¼³Áß¿¡ ÀÖ´Â ´ë´Ü¸é ÅͳÎÇöÀå¿¡ Àû¿ëÇÏ¿© ÇØ¼®°á°ú¸¦ ºñ±³ °ËÅäÇϹǷνá, º» ³í¹®¿¡¼­ °³¹ßÇÑ ¼öÄ¡ÇØ¼®±â¹ýÀÇ Å¸´ç¼º°ú Àû¿ë¼º¿¡ ´ëÇÑ °ËÁõÀ» ÇÏ¿´´Ù.
Previous analytical models for key blocks have been based on the assumption of infinite persistent discontinuities. In this paper, a key block analysis method considering the finite persistence of discontinuities is proposed as a stability evaluation method in tunnel constructions, and then applied to an actual example site. Three-dimensional rock block identification with consideration of the persistence of discontinuities is performed by using discontinuity disk model. The removability and stability analyses of rock blocks formed by the identification method are performed. The identification method can handle convex and concave shape blocks. In order to demonstrate the applicability of this developed numerical method to the stability evaluation in tunnel constructions, the analytical results are examined and compared one another.
 
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Discontinuity disk model;Key block;Persistence;Removability and stability analysis method;Three-dimensional rock block identification;Tunnel construction;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.2, 2003³â, pp.39-48
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921640687)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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