|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.4, 1999³â, pp.99-112
|
ÆÄ¼â´ë ¿¹ÃøÀ» À§ÇÑ ÅͳÎÀÇ 3Â÷¿ø ¼öÄ¡ÇØ¼®
( 3-Dimensional Tunnel Analyses for the Prediction of Fault Zones ) |
| ÀÌÀθð;±èµ·Èñ;À̼®¿ø;¹Ú¿µÁø;¾ÈÇüÁØ; °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;(ÁÖ) ´öõ¿£Áö´Ï¾î¸µ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;ÄÚ¿À·Õ°Ç¼³(ÁÖ) ±â¼ú¿¬±¸¼Ò;ÄÚ¿À·Õ°Ç¼³(ÁÖ) ±â¼ú¿¬±¸¼Ò;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ¸·Àå Àü¹æ¿¡ ÆÄ¼â´ë µîÀÇ ºÒ¿¬¼Ó¸éÀÌ Á¸ÀçÇÒ °æ¿ì, À̸¦ ¹Ì¸® ¿¹ÃøÇÏÁö ¸øÇÑä·Î ±¼ÁøÀ» ÇÏ°Ô µÇ¸é ÆÄ¼â´ë·Î ÀÎÇØ ÅͳΠ±¼Áø¿¡ µû¶ó ¹ß»ýµÈ Á¾¹æÇâ ¾ÆÄª¿¡ ¿µÇâÀ» ÁÖ¾î ¸·Àå¸é Àü¹æ¿¡ ÀÀ·ÂÀÌ ÁýÁßÇÏ°Ô µÈ´Ù. ÅͳΠ¹× ÁöÇϰø°£ÀÇ ¼³°è½Ã¿¡´Â ºÒÈ®½ÇÇÑ ¼³°è¿ä¼Ò¸¦ °ú´ÙÇÏ°Ô ³»Æ÷Çϰí ÀÖÀ¸¹Ç·Î °æÁ¦ÀûÀÌ°í ¾ÈÁ¤¼ºÀÌ È®º¸µÈ ÅͳΠ½Ã°øÀ» À§Çؼ´Â ÅͳΠ¸·Àå¸é¿¡¼ÀÇ Á¤È®ÇÑ °èÃøÀ¸·Î ¸·Àå Àü¹æÀÇ ÆÄ¼â´ë¸¦ ¿¹ÃøÇÏ¿© ÅͳΠÁöº¸Ã¼°è¿¡ ½Å¼ÓÈ÷ ´ëºñÇÔÀÌ ÇÊ¿äÇÏ´Ù. ÃÖ±ÙÀÇ ¿¬±¸°á°ú¿¡ ÀÇÇϸé 3Â÷¿ø Àý´ëº¯À§°èÃø¿¡ ÀÇÇØ ÅͳÎÀÇ ½Ã°ø ½Ã ±¼Áø¿¡ µû¶ó Áö¹ÝÀÇ °µµÂ÷ÀÌ·Î ÀÎÇØ ¹ß»ýµÈ Á¾¹æÇâ º¯À§ÀÇ º¯È¸¦ ÃøÁ¤ÇÏ¿© ¸·Àå Àü¹æÀÇ ºÒ¿¬¼Ó¸éÀ» ¹Ì¸® ¿¹ÃøÇÒ ¼ö ÀÖ´Ù°í ÇÏ¿´´Ù. º» ¿¬±¸´Â È¥ÇÕ¹ýÀ» »ç¿ëÇÑ 3Â÷¿ø ¼öÄ¡ÇØ¼®À¸·ÎºÎÅÍ ¾ò¾îÁö´Â º¯À§·ÎºÎÅÍ L/C (õ´ÜºÎÀÇ Á¾¹æÇâ º¯À§[L]¿Í õ´ÜºÎÀÇ Ä§ÇÏ·®[C]ÀÇ ºñ )¿Í S/C (Ãøº®ÀÇ ¼öÆò¹æÇâ º¯À§[S]¿Í õ´ÜºÎÀÇ Ä§ÇÏ·®[C]ÀÇ ºñ), (Ll-Lr)/C (ÁÂÃøº®ÀÇ Á¾¹æÇ⺯À§[Ll]¿Í ¿ìÃøº®ÀÇ Á¾¹æÇ⺯À§[Lr]ÀÇ Â÷¿Í õ´ÜºÎÀÇ Ä§ÇÏ·®[C]ÀÇ ºñ), Æò»çÅõ¿µ¹ýÀ» Áß½ÉÀ¸·Î Áö¹Ý¿¡ ÆÄ¼â´ë°¡ Á¸ÀçÇÒ °æ¿ì¿¡ ´ëÇØ ¿©·¯ °¡Áö Ãʱâ ÁöÁßÀÀ·ÂÁ¶°Ç¿¡¼ ÅͳΠ±¼Âø¿¡ µû¸¥ 3Â÷¿ø Àý´ë º¯À§¸¦ ºÐ¼®ÇÏ¿© ±× Á¸À縦 ¿¹ÃøÇÒ ¼ö ÀÖ´Â ±â¹ýÀ» Á¦½ÃÇÏ¿´´Ù. |
|
| When there exists a fault zone ahead of the tunnel face and a tunnel is excavated without perceiving its existence, it will cause stress concentration in the region between the tunnel face and the fault zone because of the influence of the fault zone on the arching phenomena. Because the underground structure has many unreliable factors in the design stage, the prediction of a fault zone ahead of the tunnel face by monitoring plans during tunnel construction and the rapid establishment of appropriate support system are required for more economical and safer tunnel construction. Recent study shows that longitudinal displacement changes during excavation due to the change of rock property, and if longitudinal displacement and settlement, which are measured in the field, are considered together in displacement analysis, the prediction of change in rock mass property is possible. This study provided the method for the prediction of fault zones by analyzing the changes of L/C and (Ll-Lr)/C ratio (L= longitudinal displacement at crown, C = settlement at crown, Ll = longitudinal displacement at left sidewall, Lr = longitudinal displacement at right sidewall) and the stereographic projection of displacement vectors which were obtained from the 3-D numerical analysis of hybrid method in various initial stress conditions. |
| |
| Ű¿öµå |
| Arching effect;Fault zone;3-dimensional monitoring;3-dimensional absolute displacement;Hybrid method; |
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.4, 1999³â, pp.99-112
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749349)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|