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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.10, 2010³â, pp.15-25
Á¤±Ô¾Ð¹Ð Á¡ÅäÁö¹Ý¿¡¼­ ÇÇ¿¡Á¶ÄܰüÀÔ °á°ú¸¦ ÀÌ¿ëÇÑ ¿øÀ§Ä¡ ÀÀ·Â»óÅ Æò°¡
( Estimation of In-situ Stress State for NC Clays Using PCPT Results )
Á¶¼ºÈ¯;¼­°æ¹ü;Àå¹ü¼ö;ÀÌÁØÈ¯; ¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;Çѱ¹½Ã¼³¾ÈÀü°ü¸®°ø´Ü;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â Á¤±Ô¾Ð¹ÐµÈ Á¡ÅäÁö¹Ý¿¡¼­ ÇÇ¿¡Á¶ÄܰüÀÔ½ÃÇè (PCPT) °á°ú¸¦ ÀÌ¿ëÇÏ¿© ¿øÀ§Ä¡ ÀÀ·Â»óŸ¦ Æò°¡ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. À̸¦ À§ÇØ ´Ù¾çÇÑ ÇöÀå½ÃÇè°ú ½Ç³»½ÃÇè °á°ú¸¦ ºÐ¼®ÇÏ¿´À¸¸ç, ÇöÀå½ÃÇè¿¡¼­ ±¸ÇØÁø PCPT °á°ú°ª°ú ½Ç³»½ÃÇè¿¡¼­ ¾ò¾îÁø °á°ú¸¦ Åä´ë·Î À̷нÄÀ» »êÁ¤ÇÏ¿´´Ù. Á¦¾ÈµÈ ¹æ¹ý¿¡¼­´Â ±âÁ¸ ¹æ¹ý¿¡ Æ÷ÇԵǾî ÀÖ´ø ºÒ±³¶õ ½Ã·á äÃë°úÁ¤°ú ´ÜÀ§Áß·® °áÁ¤À» À§ÇÑ º°µµÀÇ ½ÇÇè°úÁ¤ÀÌ ¿ä±¸µÇÁö ¾ÊÀ¸¸ç, PCPT ½ÃÇè°á°ú¸¦ ÅëÇØ À¯È¿ÀÀ·ÂÀÇ ÃßÁ¤ÀÌ °¡´ÉÇϱ⠶§¹®¿¡, Á¶»ç°úÁ¤¿¡¼­ÀÇ ºñ¿ëÀ̳ª ¼Ò¿ä½Ã°£À» ÃÖ¼ÒÈ­ ÇÒ ¼ö ÀÖ´Ù. Á¦¾ÈµÈ ¹æ¹ýÀÇ Àû¿ë¼º Æò°¡¸¦ À§ÇÏ¿© ±¹³»ÀÇ ´Ù¾çÇÑ Á¡¼ºÅä Áö¹Ý¿¡¼­ ¼öÇàµÈ ÇÇ¿¡Á¶ÄܰüÀÔ½ÃÇè °á°ú¸¦ ¼öÁýÇÏ¿´À¸¸ç, À̸¦ Åä´ë·Î Á¦¾ÈµÈ ¹æ¹ý¿¡ ÀÇÇÑ °á°ú¿Í ±âÁ¸¹æ¹ýÀÇ °á°ú¿ÍÀÇ ºñ±³ºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. ºÐ¼®°á°ú, ¿¹ÃøµÈ °á°ú´Â ÃøÁ¤µÈ °á°ú¿Í À¯»çÇÔÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In this study, a method for estimating the in-situ stress state of NC clays using piezocone penetration test (PCPT) results is proposed. The proposed method is based on a correlation between the PCPT results and strength increment ratio. According to proposed method, no additional testing procedure for collecting undisturbed soil sample is required, which can reduce overall testing cost. To verify this method various analytical solutions were adopted and used. Measured result and predicted result are compared with each other. The verification sites consist of a variety of soil conditions. From the comparison, it is seen that predicted value of effective strcss using the proposed method match well those from measured results.
 
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Cone penetration test;Cone factor;Effective stress;Site investigation;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.10, 2010³â, pp.15-25
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201011949347206)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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