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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.1, 2003³â, pp.77-92
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Ç¥ÁØ»ïÃà½ÃÇèÀ¸·ÎºÎÅÍ »çÁúÅä¿¡¼ÀÇ ÇѰè»óÅÂÁ¤¼ö °áÁ¤¿¡ °üÇÑ ¿¬±¸ (II) : ½ÇÇè ¹× Ãßõ
( Determination of Critical State Parameters in Sandy Soils from Standard Triaxial Testing (II) : Experiment and Recommendation ) |
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| »çÁúÅä¿¡¼ÀÇ ÇѰè»óÅÂÁ¤¼ö °áÁ¤½Ã ±Ùº»ÀûÀÎ ¹°¸®Àû °úÁ¤µé°ú °íÀ¯Àû ÀÎ ÇѰ輺µéÀ» ÆÄ¾ÇÇϱâ À§ÇÏ¿© ÀÏ·ÃÀÇ Ç¥ÁØ»ïÃà½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÃÇè°á°ú¿¡ ÀÇÇϸé, ÁÖ¾îÁø Èë¿¡ ´ëÇÏ¿© ÇѰè»óŸ¶Âû°¢Àº ¹è¼öÁ¶°Ç¿¡ »ó°ü¾øÀÌ ÀÏÁ¤ÇÑ ¹Ý¸é¿¡, e-log p£§°ø°£»ó¿¡¼ÀÇ ÇѰè»óż±Àº ÁַΠǥÁØ»ïÃà½ÃÇè¿¡¼ ÃæºÐÄ¡ ¸øÇÏ°Ô µµ´ÞÇÏ´Â º¯Çü·ü°ú ºñ¹è¼ö½ÃÇè¿¡¼ÀÇ º¯Çü·ü ±¹ÁöÈÈ¿°ú ¶§¹®¿¡ ¹è¼öÁ¶°Ç¿¡ µû¶ó ´Ù¸¥ °á°ú¸¦ º¸¿´´Ù. ½Ç³»½ÃÇèÀ» ÅëÇÏ¿© ÇѰè»óÅÂÁ¤¼ö¸¦ »êÁ¤ÇÏ´Â ÃÖ¼±ÀÇ ¹æ¹ýÀº ±ÕÀÏÇÏ°í ´À½¼ÇÏ°Ô ¼ºÇüµÈ ½Ã·á¸¦ ¹è¼öÁ¶°ÇÇÏ¿¡¼ Àü´ÜÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ´õºÒ¾î ¹è¼ö½ÃÇè¿¡¼ ´ÙÀÏ·¯ÅÏ ½ÃÈ¿°ú³ª º¯Çü·ü ±¹ÁöÈÈ¿°ú¸¦ ÇÇÇÒ ¼ö ÀÖ´Â ½ÃÇèÀ» °èȹÇϱâ À§ÇÑ Âü°í»óÅÂÁ¤¼ö¸¦ Á¦½ÃÇÏ¿´´Ù. |
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| A set of standard triaxial testing was performed to identify underlying physical processes and inherent limitations in the determination of critical state parameters in sandy soils. The experimental test results showed that the critical state friction angle for a given soil is constant regardless of drainage condition while the critical state line on the e-log p'space is significantly affected by drainage condition mainly because of insufficient strain attained in standard triaxial tests and strain localization effects in udrained tests. It appeared that the best method to determine critical state parameters in laboratory testing is to use homogeneous loose specimens under drained shear condition. In addition, a reference state parameter was suggested to design tests that will avoid dilatancy or strain localization effects in drained tests. |
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| Critical state;Critical state parameters;Friction angle;Post-liquefaction;Sandy soil;Strain localization;Shear strength;Standard triaxial test; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.1, 2003³â, pp.77-92
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921582160)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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