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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.5, 2005³â, pp.133-142
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ÀÎȦ ½ÃÇèÀ» ÀÌ¿ëÇÑ ÅͳΠ¸·ÀåÀÇ ¾Ï¹Ý°¼º ÃøÁ¤¿¡ ´ëÇÑ Àû¿ë¼º ¿¬±¸
( A Pilot Study of Stiffness Mesurements for Tunnel-Face Materials Using In-hole Seismic Method ) |
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| º» ¿¬±¸´Â Áö³ 5³â°£ °³¹ßÇØ¿Â ÀÎȦ ¹ßÁøÀÚ¸¦ ÅͳΠ¸·ÀåÀÇ °¼ºµµ °èÃø¿¡ »ç¿ë°¡´ÉÇϵµ·Ï °³¼±Çϴµ¥ ÁÖ·ÂÇÏ¿´´Ù. ÇÁ·Îºê´Â ÅͳÎÀÇ ÆøÆÄ¸¦ À§ÇØ Á¡º¸µå¸±·Î½á õ°øµÈ Á÷°æ 45mÀÇ È¦¿¡ ¸ÂÃß±â À§ÇÏ¿© ¼ÒÇüȵǾú´Ù. ¶ÇÇÑ Æ®¸®°Å ½Ã½ºÅÛÀº °¨¼Ó¸ðÅ͸¦ »ç¿ëÇÔÀ¸·Î¼ Æí¸®ÇÏ°Ô µÇ¾ú°í, ¿¡¾î ÆÑÅ· ½Ã½ºÅÛÀº ¾ÐÃà°ø±â ¾øÀÌ »ç¿ëÇϱâÀ§ÇÑ Ç÷¹ÀÌÆ® ½ºÇÁ¸µÀ¸·Î ±³Ã¼ÇÏ¿´´Ù. ÀÌ·¯ÇÑ °³¼±Àº ÇÁ·Îºê¸¦ Åͳγ»ºÎÀÇ È¯°æ¿¡ ÀûÇÕÇÏ°Ô ¸¸µé°í Ãß°¡µÇ´Â ºñ¿ë ¾øÀÌ ½ÇÇèÇϱâ À§ÇÔÀÌ´Ù. ÇÁ·Îºê¿Í Å×½ºÆ® °úÁ¤Àº ¾Ï¹ÝÀÇ °¼ºÀ» ÃøÁ¤Çϱâ À§ÇØ ÅͳÎÀÇ ¸·ÀåÀÇ ¼öÆò Ȧ¿¡ ¼º°øÀûÀ¸·Î Àû¿ëµÇ¾ú´Ù. ÃøÁ¤µÈ Àü´ÜÆÄ ¼Óµµ´Â ÅÍ³Î ÇØ¼®À» À§ÇÑ ¾Ï¹ÝÀÇ º¯Çü Ư¼ºÀ» ÃøÁ¤ÇÏ´Â °Í¿¡ »ç¿ëµÉ ¼ö ÀÖ´Ù. |
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| The research concentrates on improving the in-hole seismic probe, which has been developed in past five years, to be used in stiffness measurements of tunnel-face materials. The size of probe was reduced to be fit in 45-mm diameter holes (or BX) drilled by a jumbo-drill, which is used to drill holes to install explosives for tunneling. Also trigger system was improved by using a down-speeding motor for operating convenience and air packing system was replaced with a set of plate-springs to eliminate supply of compressed air. These modifications are to adjust the probe for the unfavourable environment inside of tunnels and to test without any further drilling cost. The probe and testing procedure were successfully adopted with horizontal holes drilled by a jumbo-drill at a tunnel-face to evaluate the stiffness of rock mass. The measured shear wave velocities can be used to estimate deformation properties of rock mass for tunnel analyses. |
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| Ű¿öµå |
| In-hole seismic probe;Shear wave velocities;Tunnel-Face; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.5, 2005³â, pp.133-142
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200504704324654)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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