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Çѱ¹Áö¹Ý°øÇÐȸ / v.11, no.3, 1995³â, pp.55-68
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¹Ù´Ú¹ßÆÄ¿¡¼ ¾ÏÁúÁö¼ö(RQD)¿Í ¹ßÆÄÁøµ¿»ó¼ö K, nÀÇ °ü°è
( Relationship between Rock Quality Designation and Blasting Vibration Constant "K" & Decay Constant "n" by Bottom Blasting Pattern ) |
| õº´½Ä;¿À¹Î¿; Á¤È¸¿ø, ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
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| º» ¿¬±¸´Â ¼öÁ÷±¸ÀÇ ¹Ù´Ú±¼ÂøÀ» À§ÇÑ ¹Ù´Ú¹ßÆÄ½Ã »ï½Â±Ùȯ»ê½Ä°ú Àڽ±Ùȯ»ê½ÄÀÇ ¹ßÆÄÁøµ¿»ó¼ö ¹× °¨¼èÁö¼ö¿Í ¾ÏÁúÁö¼ö(RQD)¿ÍÀÇ °ü°è¸¦ ½ÃÇè¹ßÆÄ°èÃøÀ» ÅëÇÏ¿© Á¤¸®ºÐ¼®ÇÑ °ÍÀÌ´Ù. °¢Á¾ ¹ßÆÄ½Ã ¹ßÆÄÁøµ¿ÀÇ Å©±â´Â Àå¾à·®, ¹ßÆÄ¿ø°ú ¹ßÆÄÁøµ¿ ÃøÁ¤ÁöÁ¡°úÀÇ °Å¸®, Áö¹ÝÀÇ Æ¯¼º¿¡ µû¶ó Å©°Ô Á¿ìµÇ¸ç º» ³í¹®¿¡¼´Â Áö¹ÝÀÇ Æ¯¼ºÀÌ ¹ßÆÄÁøµ¿¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ±Ô¸íÇϱâ À§ÇÏ¿© ¾Ï¹ÝÀÇ Àý¸®Æ¯¼ºÀ» ´ëÇ¥ÇÏ´Â RQD¿Í ¹ßÆÄÁøµ¿ Å©±â¿ÍÀÇ °ü°è¸¦ ¿¬±¸ÇÑ °ÍÀÌ´Ù. ½ÃÇè°á°ú RQDÀÇ Áõ°¡¿¡ µû¶ó ¹ßÆÄÁøµ¿»ó¼ö K¿Í °¨Ä¡Áö¼ö nÀÇ Àý´ëÄ¡´Â »ó´ëÀûÀ¸·Î Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç º» ¿¬±¸°á°ú¿¡ ÀÇÇÏ¿© ÇâÈÄ ¾ÏÁúÁö¼ö¿¡ µû¸¥ ¹Ù´Ú¹ßÆÄÀÇ ¹ßÆÄÁøµ¿¼Óµµ¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Ù. |
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| This paper is the analysis of the relationship between RQD and decay constant, blasting vi bration constant of cube root scaling and square root scaling, through experimental blast ins test in subway construction for excavation of shaft hole by bottom blasting. The magnitude of particle velocity is largely effected by the distance from blasting source, the maximum charge per delay and the properties of ground. In order to verify the effects of ground properties on blast-induced vibration, the relation-ship between magnitude of blasting vibration and Rock Quality Disignation which stands for joint property was studied. The results of test are verified that blasting vibration constant "K" and the absolute value("n") of decay constant relatively increse as RQD increased. According to the result, it can be predict the particle velocity by the blast -induced vibration in bottom blasting pattern.om blasting pattern. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.11, no.3, 1995³â, pp.55-68
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199511920446109)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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