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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.8, 2007³â, pp.87-95
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´ë½Éµµ dzȴëÃþ¿¡¼ NATM ÅͳÎÀÇ Áö¹Ý°Åµ¿ ¹× º¸°¹æ¹ý
( Ground Behavior and Reinforcing Methods of NATM Tunnel through Deep Weathered Zone ) |
| õº´½Ä;¼Û½ÂÈÆ;¾ÈÁ¤È¯; ÇѾç´ëÇб³ Åä¸ñ°øÇаú;±ÝÈ£°Ç¼³;(ÁÖ)µ¿È£ Áö¹Ý°øÇкÎ;
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| º» ¿¬±¸¿¡¼´Â ´ë½Éµµ dzȴ뿡 ½Ã°øµÇ´Â 2Â÷·Î µµ·ÎÅͳÎÀ» ±âÁØÀ¸·Î ÅͳÎÀÇ ±¼Âø¹æ¹ý°ú Áö¹Ýº¸°±×¶ó¿ìÆÃ¿¡ ÀÇÇÑ Áö¹Ýº¯À§ ¹× Áö¹ÝÀÀ·ÂÀÇ ºÐ¼®À» ÅëÇÏ¿© ÃÖÀûÀÇ ½Ã°ø¹æ¾ÈÀ» ã°íÀÚ ÇÏ¿´´Ù. ÅͳΠÁ÷°æÀº ¾à 12m¸¦ Àû¿ëÇÏ¿´À¸¸ç, »óºÎ °°ü´Ù´Ü±×¶ó¿ìÆÃ ¹× Ãøº® º¸°±×¶ó¿ìÆÃÀ» Àû¿ëÇÏ¿´´Ù. °ËÅäµÈ ±¼Âø¹æ¹ýÀº ¸µÄÆ ±¼Âø¹æ¹ý°ú Áߺ®ºÐÇÒ ±¼Âø¹æ¹ýÀÌ´Ù. ÅͳΠõ´ÜÀÇ ¼Ò¼ºÀ²°ú ¿¬Á÷ÀÀ·Âºñ¸¦ ºÐ¼®ÇÑ °á°ú, dzȴëÁö¹Ý¿¡ ±¼ÂøµÇ´Â Åͳο¡¼ ÅäÇǰí(H)°¡ ÅͳÎÁ÷°æ(D)ÀÇ 4¹è ÀÌ»óÀÏ °æ¿ì(H>4D) ´ë½Éµµ ÅͳηΠÆÇ´ÜÇÒ ¼ö ÀÖ¾ú´Ù. ÇØ¼®°á°ú Áߺ®ºÐÇÒ ±¼Âø¹æ¹ýÀÌ ¸µÄÆ ±¼Âø¹æ¹ý¿¡ ºñÇÏ¿© ´ë½Éµµ dzȴë NATMÅͳο¡¼ ¾ÈÁ¤¼ºÀÌ ³ôÀº ±¼Âø¹æ¹ýÀ¸·Î ÆÇ´ÜÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ, Ãøº® º¸°±×¶ó¿ìÆÃ ½Ç½Ã·Î ÅͳΠ³»°øº¯À§ ¹× ħÇÏ ¹ß»ýÀ» ¾ïÁ¦ÇÒ ¼ö ÀÖ¾ú´Ù. |
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| This study analyzed ground settlement and ground stress depending on tunnel excavation and the ground reinforcing grouting methods for double line road tunnel through deep weathered zone. Diameter of double line road tunnel was approximately 12m and umbrella arch method and side wall reinforcing grouting were applied. The ring-cut split excavation method and CD-cut excavation method for excavation method were applied. Analyses of failure rate and vertical stress ratio show that the tunnel for which the height of the cover (H) was higher than four times the diameter, can be considered a deep tunnel. Comparisons of various excavation and ground reinforcement methods showed that CD-cut method results in lower surface and crown settlement, and lower failure rate than that obtained by Ring-cut split method. In addition, the side wall reinforcing grouting resulted in reduction of tunnel displacement and settlement. |
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| Ű¿öµå |
| CD-cut method;Deep tunnel;Ring-cut split method;Side wall reinforcing grouting;Weathered zone; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.8, 2007³â, pp.87-95
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734516348720)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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