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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.7, 2004³â, pp.5-14
ÅͳÎÀÇ ½Å Á¤º¸È­ ¼³°è½Ã°ø¹ý°ú ±Ø´ë´Ü¸é Åͳο¡ÀÇ Àû¿ë
( New Observational Design and Construction Method in Tunnels and Its Application to Very Large Cross Section Tunnel )
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ÃÖ±Ù ÅͳÎÀÇ Á¤º¸È­ ¼³°è½Ã°øÀÌ Áß¿ä½Ã µÇ¾îÁö°í ÀÖ´Ù. ¾Ï¹Ý±¸Á¶ÀÇ º¹À⼺À¸·Î ÀÎÇØ »çÀü¿¡ ¿¹Ãø ÇÒ ¼ö ¾ø¾ú´ø ¾Ï¹ÝÀÇ ºØ¶ôÀÌ ¹ß»ýÇÏ¿©, ºØ¶ô´ëÃ¥¿¡ ¸·´ëÇÑ ºñ¿ë°ú ½Ã°£À» ³¶ºñÇÏ´Â »ç·Ê°¡ ¸¹´Ù. ¾Ï¹Ý ºÒ¿¬¼Ó¸éÀÇ º¹À⼺À» »çÀü Á¶»ç ´Ü°è¿¡¼­ ÃæºÐÈ÷ ÆÄ¾ÇÇϰųª ´ëÃ¥À» ¼ö¸³ÇÏ´Â °ÍÀº ¾î·Æ´Ù. º» ³í¹®¿¡¼­´Â ÅͳÎÀÇ ½Å Á¤º¸È­ ¼³°è½Ã°ø¹ýÀ» Á¦¾ÈÇϰí, ÇöÀå¿¡¼­ °üÂûÇÑ ºÒ¿¬¼Ó¸é Á¤º¸¸¦ ±Ù°Å·Î ÇÏ¿© ±Ø´ë´Ü¸é Åͳο¡ Àû¿ëÇß´Ù. ÅͳÎÀÇ ½Å Á¤º¸È­ ¼³°è½Ã°ø¹ýÀ» À§ÇÑ ¼öÄ¡ÇØ¼® ÇÁ·Î±×·¥Àº ¹ü¿ë¼º, Á¤¹Ð¼º, ½Å¼Ó¼º, Æí¸®ÇÑ »ç¿ë¼ºÀ» °ËÅäÇÏ¿© »õ·Ó°Ô °³¹ßµÇ¾ú´Ù. ±Ø´ë´Ü¸é Åͳο¡¼­´Â Ç¥ÁØÁöº¸¿¡ ÀÇÇØ ÁöÁöÇÒ ¼ö ¾ø´Â ºÒ¾ÈÁ¤ Űºí·°ÀÌ 7°³ Á¸ÀçÇÏ´Â °ÍÀÌ ÆÇ¸íµÇ¾ú´Ù. 7°³ÀÇ Å°ºí·°¿¡ ´ëÇØ¼­´Â ±¼ÂøÀü¿¡ Ãß°¡ Áöº¸¸¦ ½Ç½ÃÇß´Ù. ±Ø´ë´Ü¸é Åͳο¡ À־, ÅͳÎÀÇ ½Å Á¤º¸È­ ¼³°è½Ã°ø¹ýÀ» À§Çؼ­ »õ·Ó°Ô °³¹ßÇÑ ¼öÄ¡ÇØ¼® ÇÁ·Î±×·¥À» »ç¿ëÇÏ¿© Á¤È®ÇÑ Å°ºí·° ÃßÃâÀÌ °¡´ÉÇÑ °ÍÀ» °ËÁõÇÏ¿´´Ù. »ç¿ëÇϱ⠽¬¿î »ç¿ëÀÚ ÀÎÅÍÆäÀ̽º¸¦ °¡Áö°í ÀÖ´Â º» ÄÄÇ»ÅÍ ½Ã¹Ä·¹ÀÌ¼Ç ±â¹ýÀº Űºí·°ÀÇ ¾ÈÁ¤¼º °è»ê»Ó¸¸ ¾Æ´Ï¶ó Ãß°¡º¸°­´ëÃ¥°øÀÇ ¼³°èµµ °¡´ÉÇÏ´Ù.
The observational design and construction method in tunnels is becoming important recently. In many tunnels, enormous cost and time are consumed to cope with the failing or sliding of rock blocks, which could not be predicted because of the complexity of rock discontinuities. It is difficult to estimate the properties of rock masses before the construction. In this paper, a new observational design and construction method in tunnels are proposed, and then applied to the example of the very large cross section tunnel based on actual discontinuity information observed in situ. The items examined in developing a program for the new observational design and construction method are the following ones: generality, precision, high speed, and friendly usability. At the very large cross section tunnel, 7 key blocks were judged to be unstable because they could not be supported by standard supports. Supplementary supports were installed to these 7 key blocks before the excavation. It is possible to detect key blocks all along the tunnel exactly by using the numerical analysis program developed for the new observational design and construction method in the very large cross section tunnel. This computer simulation method with user-friendly interfaces can calculate not only the stability of key blocks but also the design of supplementary supports.
 
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Computer simulation method;Discontinuity information;Key block;Observational design and construction method;Supplementary support;Very large cross section tunnel;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.7, 2004³â, pp.5-14
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200425720310778)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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