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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.1, 2003³â, pp.151-161
Á¤±Ô¾Ð¹ÐÁ¡Åä¿¡¼­ÀÇ ÇÇ¿¡Á¶ ÄÜ °üÀÔ¿¡ ÀÇÇÑ °úÀ×°£±Ø¼ö¾Ð¿¡ ´ëÇÑ ¿¬±¸
( Initial Excess Pore Pressure Induced by Cone Penetration in Normally Consolidated Clays )
ÀÓÇü´ö;ÀÌ¿ìÁø;±è´ë±Ô; °í·Á´ëÇб³ ºÎ¼³ ¹æÀç°úÇбâ¼ú¿¬±¸¼¾ÅÍ;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;»ó¸í´ëÇб³ Åä¸ñȯ°æ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â ÄÜ ¼±´ÜºÎ ÁÖº¯ÀÇ Á¤±Ô¾Ð¹ÐÁ¡Åä ¿ä¼ÒÀÇ ÀÀ·Â °æ·Î°¡ »ïÃà¾ÐÃà½ÃÇèÀÇ ÀÀ·Â °æ·Î¿Í °°°í Èë ¿ä¼Ò¸¦ ź¼º-¿ÏÀü ¼Ò¼º Àç·á·Î °¡Á¤ÇÏ¿©, ÄÜ °üÀÔ¿¡ µû¸¥ °úÀ×°£±Ø¼ö¾ÐÀÇ µÎ ¿ä¼Ò¸¦ Æ÷ÇÔÇÑ ÀÀ·Â »óŸ¦ Æò°¡ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ ¹æ¹ýÀº ·çÀÌÁö¾Ö³ª ÁÖ¸³´ëÇб³ ¸ðÇü ÅäÁ¶¿¡¼­ ¼öÇàµÈ ¼ÒÇü ÇÇ¿¡Á¶ ÄÜ ½ÃÇè°á°ú¿¡ Àû¿ëÇÏ¿´´Ù. ÇØ¼®°á°ú¿¡ ÀÇÇϸé, Á¦¾ÈµÈ ¹æ¹ý¿¡ ÀÇÇØ »êÁ¤µÈ $Delta{u}_{oct}$/ $Delta{u}$ and $Delta{u}_{shear}$/$Delta{u}$ ´Â ¿ÀÁ÷ °£±Ø¼ö¾Ð°è¼öÀÇ ÇÔ¼öÀÎ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ, ±âÁ¸ÀÇ ÀÌ·ÐÇØ¿¡¼­´Â ºñ¹è¼ö Àü´Ü°­µµ, °­¼ºÁö¼ö¿Í °°Àº ÈëÀÇ ¹°¼ºÄ¡ »êÁ¤ÀÇ Á¤È®¼º¿¡ µû¶ó Á¿ìµÇ´Â ¹Ý¸é¿¡ Á¦¾ÈµÈ ¹æ¹ýÀº °£±Ø¼ö¾Ð°è¼ö¿¡ µû¸¥ ÀϰüµÈ °á°ú¸¦ ÁÖ¸ç ±âÁ¸ÀÇ ¿¬±¸°á°ú¿Íµµ ÀÏÄ¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
In this study, an interpretation method is proposed to evaluate the stress conditions, including individual excess pore pressure components ($Delta{u}_{oct}$/ and $Delta{u}_{shear}$), of normally consolidated clay elements adjacent to the cone face. It is assumed that the stress path of triaxial compression is representative f3r that of the soil element and the soil is elastic-perfectly plastic material. The proposed method is applied to the results of miniature piezocone tests conducted at Louisiana State University calibration chamber system. Based on the results of interpretation, it was found that the ratio of $Delta{u}_{oct}$/ $Delta{u}$and $Delta{u}_{shear}$/$Delta{u}$ estimated by the proposed method is affected only by the pore pressure parameter. The proposed method gives consistent and reliable values of $Delta{u}_{oct}$/ $Delta{u}$and $Delta{u}_{shear}$/$Delta{u}$ compared with early works, whereas those obtained by other solutions are significantly dependent on the accuracy in estimating soil properties such as undrained shear strength and rigidity index.
 
Ű¿öµå
Excess pore pressure;Miniature piezocone;Normally consolidated clays;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.1, 2003³â, pp.151-161
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921582231)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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