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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.6, 1998³â, pp.45-56
ÇÇ¿¡Á¶ Äܰú µô¶óÅä¸ÞÅÍ ½ÃÇèÀ» ÀÌ¿ëÇÑ ¿¬¾àÁö¹ÝÀÇ ÇöÀ寝¼º ºñ±³
( Comparison of Tn-situ Characteristics of Soft Deposits Using Piezocone and Dilatometer )
±è¿µ»ó;À̽·¡;±èµ¿¼ö; Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;
 
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´ë»ó ¿¬¾àÁö¹ÝÀÇ ÀûÀýÇÑ °³·®±â¼ú ¼±Åðú °³·® È¿°úµéÀ» Æò°¡, °ü¸®Çϱâ À§Çؼ­´Â ÇöÀå ¿¬¾à Á¡ÅäÁö¹Ý Ư¼ºÀ» Á¤È®È÷ Æò°¡ÇÒ ¼ö ÀÖ´Â ÀûÀýÇÑ ÇöÀå ½ÃÇè±â¹ýÀÇ Àû¿ëÀÌ ÇʼöÀûÀÌ´Ù. º» ³í¹®¿¡¼­´Â ¿©·¯ ÇöÀå½ÃÇè ¹æ¹ý Áß¿¡ °æÁ¦ÀûÀ̸鼭µµ È¿°úÀûÀÎ °ÍÀ¸·Î ¾Ë·ÁÁ® ±¹³»¿¡¼­ ±× ¼ö¿ä°¡ Áõ°¡Çϰí ÀÖ´Â ÇÇ¿¡Á¶ ÄÜ(piezocone)°ú µô¶óÅä¸ÞÅÍ(dilatometer)¸¦ ÀÌ¿ëÇÏ¿© ¿¬¾àÁö¹ÝÀÇ ÇöÀå ¹°¼ºÀ» Æò°¡ÇÏ°í ºñ±³ÇÏ¿´´Ù. ¿¬±¸°á°ú µÎ Àåºñ ¸ðµÎ À¯»çÇÑ Èë ºÐ·ù °á°ú¸¦ Á¦°øÇÏ¿´À¸³ª. ƯÈ÷ °£±Ø¼ö¾ÐÀ¸·ÎºÎÅÍ µµÃâÇÑ Èë ºÐ·ù °á°ú°¡ ¿¬¾àÁ¡ÅäÃþ »çÀÌ¿¡ ½ÇÆ®³ª ¸ð·¡Ãþ µéÀÌ »êÀçÇÑ ¿ì¸®³ª¶ó ½ÇÁ¤¿¡ º¸´Ù ÀûÀýÇϸç Àϰü¼º ÀÖ´Â °á°ú¸¦ ÁÖ´Â °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. Á¡ÅäÃþÀÇ ºñ¹è¼ö Àü´Ü°­µµ´Â ÇÇ¿¡Á¶ ÄÜÀÇ °æ¿ì °£±Ø¼ö¾Ð°ú ¼±´ÜÀúÇ×·ÂÀ¸·ÎºÎÅÍ µµÃâµÈ °£µéÀÌ À¯»çÇÏ¿´°í µô¶óÅä¸ÞÅͷκÎÅÍ ÃßÁ¤µÈ ºñ¹è¼ö Àü´Ü°­µµ´Â ÇÇ¿¡Á¶ ÄÜÀÇ µÎ °üÃø °ªÀ¸·Î À¯ÃßµÈ °á°úµéÀÇ Æò±Õ°£¿¡ ±ÙÁ¢ÇÑ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. ±×¸®°í ½ÇÆ® ¶Ç´Â ¸ð·¡ÃþÀÌ »êÀçÇÏ´Â °æ¿ì ¿¬¾àÁö¹ÝÀÇ ¾Ð¹ÐƯ¼ºÀ» Æò°¡Çϱâ À§Çؼ­´Â °üÀÔ°úÁ¤¿¡¼­ À¯¹ßµÇ´Â ¼Ò»êÈ¿°ú¸¦ °í·ÁÇÑ ÀÌ·ÐÀû ½Ã°£°è¼ö°¡ º¸´Ù ÀûÀýÇÑ °ÍÀ¸·Î Æò°¡µÈ´Ù.
In order to select a proper ground improvement technology and to assess the quality and rate of improvement in the soft deposits. it is essential to characterize in-situ properties of the soft marine clay layer that may have many thin silt or sand seams. In this paper, both piezocone and flat dilatometer tests were performed to characterize in situ properties of a marine clay. Both tests provided quite similar site classifications, and in both tests the penetration pore water pressure was the better indicator for the classification of marine clay layer, especially in which sand or silt seams are frequently interbedded. Undrained strengths determined by both the cone tip resistance and the excess pore water pressure measured from piezocone were very similar in clayey soil layers. And the untrained strength determined by dilatometer had an approximately average value of undiained strengths obtained from piezocone. In addition, the theoretical time factor that can consider pore pressure dissipation effect during cone penetration may provide a reliable estimation of the coefficient of consolidation, especially for a coastal site which includes many silt or sand fractions or seams.
 
Ű¿öµå
Piezocone;Dilatometer;Soft clay;Soil classification;Undrained strength;Dissipation test;Coefficient of consolidation;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.6, 1998³â, pp.45-56
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811921757674)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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