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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.4, 2003³â, pp.201-209
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½ÃÇè½Ã°øÀ» ÅëÇÑ ¾Ï¼®ÀÇ °µµÆ¯¼º°ú RBMÀÇ ¼ø°üÀÔ·ü°úÀÇ °ü°è
( The Relationship between Rock Strength Characteristics and Net Penetration Rate of RBM by Pilot Test ) |
| À̼®¿ø;Á¶¸¸¼·;¹è±ÔÁø; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸ºÎ;¢ßÀ¯´Ï¹é;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸ºÎ;
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| º» ¿¬±¸¿¡¼´Â RBM°ø¹ýÀ» ÀÌ¿ëÇÏ¿© ¿ª¾ÏÁö¹Ý ³» ¿¬Àå 98m, Á÷°æ 3.05mÀÇ ¼öÁ÷±¸¸¦ ½ÃÇè½Ã°ø ÇÏ¿´´Ù. ½ÃÇè½Ã°ø °á°ú¸¦ Åä´ë·Î ¼³°è ´Ü°è¿¡¼ÀÇ ¿¹»ó °üÀÔ·üÀ» »êÁ¤Çϱâ À§ÇÏ¿©, ½ÃÃßÁ¶»ç ¹× ½Ç³»½ÇÇè °á°úµé°ú RBM °¡µ¿ÀÎÀÚµé°úÀÇ »ó°ü¼ºÀ» ºñ±³¤ý°ËÅäÇÏ¿´´Ù. ¿¬±¸°á°ú, Æò±Õ ¼ø°üÀÔ·üÀº 2.233mm/revÀ¸·Î ºÐ¼®µÇ¾î ±¹³»¿Ü TBM ½Ã°ø½ÇÀûÀÇ Æò±Õ °üÀÔ·ü¿¡ ºñÇØ ³·°Ô ³ªÅ¸³µ°í, Æò±Õ ±¼ÁøÀ²µµ TBMÀÇ °æ¿ì¿¡ ºñÇØ ´Ù¼Ò ÀûÀº 0.382m/hr·Î ºÐ¼®µÇ¾ú´Ù. RBM °¡µ¿ ¼³°èÀÎÀÚ¿Í ¼ø°üÀÔ·ü°úÀÇ °ü°è¿¡¼´Â ¾Ï¼®ÀÇ °µµÆ¯¼º(ÀÏÃà¾ÐÃà°µµ, ÀÎÀå°µµ, ¹Ý¹ß°æµµ µî)µéÀÌ Áõ°¡ÇÒ¼ö·Ï ¼ø°üÀÔ·üÀÌ Áõ°¡ÇÏ´Â °ÍÀ¸·Î ºÐ¼®µÇ¾ú°í, TBM¿¡ °üÇÑ ±âÁ¸ÀÇ ¿¬±¸°á°ú¿Í ¹Ý´ëÀÇ °æÇâÀ» º¸À̰í ÀÖ´Ù. ÇÕ°æµµ¿Í ¼ø°üÀÔ·ü°úÀÇ °ü°è´Â Pe=0.0039$ imes$H$_T$ + 2.07·Î¼ ÇÕ°æµµ°¡ Áõ°¡ÇÒ¼ö·Ï ¼ø°üÀÔ·üÀÌ Áõ°¡Çϰí ÀÖ´Ù. ÀÌ»ó°ú °°Àº °æÇâÀº ÀϹÝÀûÀ¸·Î °æ¾Ï¹Ý¿¡ ½Ã°øµÇ´Â TBMÀÇ ¿¬±¸°á°ú¿Í ¹Ý´ëÀÇ °æÇâÀ» º¸À̰í Àִµ¥, BartonÀÌ Á¦½ÃÇÑ Q$_TBM$¿¡ ÀÇÇÑ ¿¹»ó °üÀÔ·üÀÇ °æÇâ¿¡¼µµ º¼ ¼ö ÀÖµíÀÌ º» ¿¬±¸ÀÇ ¿¬¾Ï ¹× Ç³È¾Ï Áö¹Ý¿¡ ´ëÇØ¼´Â Á¤»óÀûÀÎ °á°úÀÎ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| For the purpose of research study, a vertical shaft of 98m in length and 3.05m in diameter was constructed in the layer of conglomerate by using the Raise Boring Machine (RBM). In order to estimate the net penetration rate of the RBM, which can be used in the stage of design, the in-situ test results were analysed and correlated to data from the boring log in situ and laboratory testing. Its average net penetration rate is 2.233mm/rev while its average advance rate is 0.382m/hr, which is lower than that of TBM(Tunnel Boving Machine). It turns out that the net penetration rate increases with the increase of strength characteristics in rock mass (e.g., uniaxial compression strength, tensile strength, etc.). Similarly, the net penetration rate increases linearly with the hardness of rock mass. These results are contrary to the results of the previous construction sites where the TBM was generally used in the layer of hard rock. However, the trend obtained in this study is in accordance with the findings of Barton suggesting the relationship between Q$_TBM$ and penetration rate in the layer of soft rock. Thus, the trend is valid in soft and/or weathered rocks. |
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| Ű¿öµå |
| Net penetration rate;RBM;Rock strength;Shaft;Total hardness; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.4, 2003³â, pp.201-209
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921886577)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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