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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.5, 2008³â, pp.89-98
ºÒÆ÷È­ÅäÀÇ $K_0$ ¾Ð¹Ð »ïÃà¾ÐÃà½ÇÇè½Ã ¸ð°üÈí¼ö·Â¿¡ µû¸¥ Á¤ÁöÅä¾Ð°è¼ö ¹× Àü´Ü°­µµ¿¡ °üÇÑ ¿¬±¸
( $K_0$ Values and Shear Strengths under $K_0$ Consolidated Triaxial Test According to Matric Suction for an Unsaturated Soil )
±èŰæ;¿À¼¼ºØ; ¿µ³²´ëÇб³ Åä¸ñ°øÇаú;¿µ³²´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â ºÒÆ÷È­Å並 ´ë»óÀ¸·Î ½¼ ¾Ð¹ÐÁ¶°Ç¿¡¼­ »ïÃà½ÃÇèÀ» ¼öÇàÇÏ¿© °Åµ¿À» ºÐ¼®ÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© dzȭÅä ½Ã·á¸¦ ¼ºÇüÇÏ¿© ¸ð°üÈí¼ö·ÂÀ» Á¶ÀýÇÑ ºÒÆ÷È­ »ïÃà¾ÐÃà½ÃÇèÀ» ¼öÇàÇÏ¿´À¸¸ç ¾Ð¹Ð½Ã À½·Â°æ·Î ¹× Àü´Ü½Ã ÀÀ·Â-º¯Çü·ü °ü°è¸¦ ºÐ¼®ÇÏ¿´´Ù. ½ÇÇè°á°ú ¸ð°üÈí¼ö·ÂÀÌ Áõ°¡ÇÒ¼ö·Ï $K_0$ °ªÀº ÀÛ¾ÆÁö´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ºÒÆ÷È­ÅäÀÇ ÆÄ±« Æ÷¶ô¼±Àº µ¿ÀÏÇÑ ¸ð°üÈí¼ö·Â¿¡ ´ëÇÏ¿© µî¹æ¾Ð¹ÐÁ¶°Ç°ú $K_0$ ¾Ð¹ÐÁ¶°Ç¿¡¼­ À¯»çÇÑ °á°ú¸¦ °¡Áö´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ƯÈ÷, ÇѰè»óÅÂÀ̷п¡¼­ »ç¿ëÇÏ´Â ÀÀ·Âº¯¼ö¸¦ Àû¿ëÇÒ °æ¿ì Mohr ¿øÀ» ÀÌ¿ëÇÏ¿© ±¸ÇÏ´Â °æ¿ì¿¡ ºñÇÏ¿© º¸´Ù ÇÕ¸®ÀûÀ¸·Î °­µµÁ¤¼ö¸¦ ȹµæÇÒ ¼ö ÀÖ¾ú´Ù.
In this study, the behaviour of an unsaturated soil was analyzed by performing $K_0$ consolidated triaxial tests. Unsaturated triaxial tests were performed with matric suctions for weathered soils and stress paths under consolidation and stress-strain relationships under shear were obtained. As a result, the $K_0$ value decreased as the matric suction increased. Besides, both isotropic and $K_0$ conditions had similar shear strength envelopes at the same matric suction. Especially, strength parameters could be obtained by stress variables used in the critical state theory more reasonably than by those of Mohr circles at failure.
 
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$K_0$ condition;Matric suction;Shear strength;Triaxial tests;Unsaturated soils;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.5, 2008³â, pp.89-98
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200816256327226)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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