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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.3, 2002³â, pp.73-85
ºñµî¹æ ¾Ð¹Ð ¸ð·¡ÀÇ ¹Ýº¹ Àü´Ü°­µµ
( Cyclic Shear Strength of Anisotropically Consolidated Snnd )
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º» ³í¹®¿¡¼­´Â ºñµî¹æ ¾Ð¹ÐµÈ ³«µ¿°­ Æ÷È­¸ð·¡ÀÇ ºñ¹è¼ö ¹Ýº¹ Àü´Ü°­µµ °Åµ¿ÀÌ ¿¬±¸µÇ¾úÀ¸¸ç, µî¹æ¾Ð¹ÐµÈ ½Ã·áÀÇ ¹Ýº¹»ïÃà½ÃÇèÀº ºñµî¹æ ¾Ð¹Ð½Ã·á¿ÍÀÇ ºñ±³¸¦ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. Ãʱâ Á¤Àû Àü´ÜÀ½·Â°ú »ó´ë¹ÐµµÀÇ ´Ù¾çÇÑ Á¶ÇÕÇÏ¿¡ ¹Ýº¹ Àü´Ü°­µµ´Â °íÂûµÇ¾ú´Ù. À½·Â¹ÝÀü°ú ºñÀÀ·Â¹ÝÀü ¸ðµÎ¿¡ ´ëÇÏ¿© ¹Ýº¹ÇÏÁßÀ» ¹Þ´Â ½Ã·áÀÇ ÆÄ±«´Â 5%ÀÇ ¾çÁøÆøº¯ÇüÀ²°ú 5%ÀÇ ÀÜ·ùÃຯÇüÀ²·Î¼­ Á¤ÀÇÇÏ¿´´Ù. ºñµî¹æ ¾Ð¹ÐµÈ ½Ã·áÀÇ ¹Ýº¹ Àü´Ü°­µµ´Â Ãʱâ Á¤Àû Àü´Ü°­µµ¿¡ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ºñµî¹æ ¾Ð¹Ð ³«µ¿°­ ¸ð·¡ÀÇ ¹Ýº¹ Àü´Ü°­µµ´Â Toyoura ½Ç¸®Ä« ¸ð·¡ÀÇ Àü´Ü°­µµ º¸´Ù´Â Å©Áö¸¸, Dogs Bay Ä«º¸³ªÀÌÆ® ¸ð·¡ÀÇ Àü´Ü°­µµ º¸´Ù´Â ÀÛ°Ô ³ªÅ¸³µ´Ù. ½ÇÇè°á°ú¿Í ¿¹Ãø°á°úÀÇ ºñ±³¿¡ ÀÇÇϸé, ³«µ¿°­ ¸ð·¡ÀÇ ÀÜ·ù °£±Ø¼ö¾Ð¿¡ ´ëÇÑ Hyodo ¸ðµ¨ÀÇ Àû¿ë¼ºÀÌ ÀÔÁõµÇ¾ú´Ù.
This paper is focused on studying the undrained cyclic triaxial behavior of saturated Nak-dong River sand, using anisotropically consolidated specimens. A test of isotropically consolidated specimens was performed to compare the results of the anisotropically consolidated specimens. The cyclic shear stre3ngth of the sand under various combinations of initial static shear stress and relative density was considered. Failure was defined as a 5% double amplitude cyclic strain and a 5% residual axial strain for both reversal stress and no reversal stress conditions. Using this definition, the cyclic strength of the anisotropically consolidated specimens was affected by the initial static shear stress. For anisotropically consolidated Nak-dong River dense sand, the cyclic strength is greater than that of Toyolura silica sand but is smaller than that of Dogs Bay carbonate sand. By comparing the experimental and predictecl results, it was possible to predict the residual pore pressure of Nak-dong River sand using Hyodo's model with initial static shear stress subjected cyclic loading.
 
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Cyclic shear strength;Initial static shear stress;Liquefaction;Pore pressure;Sand;Triaxial test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.3, 2002³â, pp.73-85
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921035363)
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