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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.1, 1992³â, pp.59-66
½ÇÃø¿¡ ÀÇÇÑ Ç¥ÁذüÀÔ½ÃÇè ÇÔ¸¶ÀÇ ³«Çϼӵµ ºÐ¼®
( Evaluation of the Falling Velocity of SPT Hammer via Actual Measurement )
À̸íȯ;ÀÌ¿øÁ¦; Á¤È¸¿ø, °í·Á´ëÇб³ ºÎ¼³ »ý»ê±â¼ú¿¬±¸¼Ò;Á¤È¸¿ø, Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÅäÁú ¹× ±âÃÊ¿¬±¸½Ç ¿¬±¸¿ø;
 
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Ç¥ÁذüÀÔ½ÃÇè °á°úÀÎ N°ªÀº ¿©·¯°¡Áö ¿ä¼Òµé¿¡ ¿µÇâÀ» ¹ÞÀ¸¸ç ±× Áß ÇÔ¸¶ÀÇ ³«ÇÏ¿¡³ÊÁö´Â °¡Àå Å« ¿µÇâÀ» ÁÖ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ¿¡³ÊÁö ¼öÁØÀÌ »óÀÌÇÑ »óÅ¿¡¼­ ÃøÁ¤ÇÑ N°ªÀ» Ç¥ÁذªÀ» ±âÁØÀ¸·Î ÇÑ ÀϹÝÀûÀÎ ÇØ¼®¿¡ Àû¿ëÇÒ °æ¿ì¿¡´Â ±âÃÊÀÇ ¾ÈÀüÀ» À§ÇùÇϰųª °úÀ×¼³°è¸¦ À¯¹ßÇÒ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â SPT ÇÔ¸¶ÀÇ ³«Çϼӵµ¸¦ ÃøÁ¤ ÇÔÀ¸·Î½á ÇÔ¸¶ÀÇ ³«ÇÏ¿¡³Ê Áö¸¦ °£Á¢ÀûÀ¸·Î °è»êÇÏ¿´´Ù. ºÐ¼® °á°ú ¿ì¸®³ª¶óÀÇ N°ªÀº ±¹Á¦Àû ÀΠǥÁØ °ªÀ¸·Î ÀÎÁ¤µÇ´Â Nu°ú´Â Â÷À̰¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³ª ÇØ¼® ¶Ç´Â ¼³°è½Ã ÇʼöÀûÀ¸·Î °í·ÁµÇ¾î¾ß ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
The SPT If value has been known to be influenced by various factors, among which the actually delivered energy level of the falling ram has the most significant effect. If N values of different energy levels are to be applied in the general analysis which is based on N values of standard energy levee the safety of the foundation might be in danger or the design might be overestimated. In this study the actual falling velocity of the ram has been measured so that the energy level could be estimated. The results Indicated that the energy level should be considered in the analysis or the design in this country, since the measured values are different from the internationally accepted scandard value, N60
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.1, 1992³â, pp.59-66
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444473)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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