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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.7, 2008³â, pp.17-24
³·Àº ¸ð°üÈí¼ö·Â ¼öÁØ¿¡¼­ ºÒÆ÷È­ÅäÀÇ Bishop ÀÀ·Â¿¡ °üÇÑ ¿¬±¸
( On the Bishop Stress of Unsaturated Soils under the Low Level of Matric Suction )
¿À¼¼ºØ;±èŰæ; ¿µ³²´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;¿µ³²´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ºÒÆ÷È­ÅäÀÇ »ïÃà½ÃÇè½Ã °Åµ¿À» Bishop ÀÀ·ÂÀ¸·Î ±â¼úÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. Bishop ÀÀ·ÂÀ¸·Î ±â¼úÇÑ $K_0$ ¾ÐÃà½Ã °æ·Î ¹× ÃÖÁ¾°ªÀº ¸ð°üÈí¼ö·Â¿¡ ¹«°üÇÏ°Ô À¯ÀÏÇÑ °ü°è·Î ³ªÅ¸³ª°í ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. ºÒÆ÷È­ÅäÀÇ ÆÄ±«Æ÷¶ô¼±Àº Bishop ÀÀ·ÂÀ¸·Î ±â¼úÇÒ °æ¿ì¿¡ ¸ð°üÈí¼ö·Â¿¡ ¹«°üÇÏ°Ô À¯ÀÏÇÑ °ü°è¸¦ ³ªÅ¸³»°í ÀÖ¾ú´Ù. ƯÈ÷ ¸ð°üÈí¼ö·ÂÀÌ ³·Àº °æ¿ì¿¡´Â ¼±ÇüÀûÀÎ °ü°è¸¦ ³ªÅ¸³»¸ç ½ÇÇèÄ¡¿Í ÀÌ·ÐÄ¡°¡ Àß ÀÏÄ¡Çϰí ÀÖ¾ú´Ù. ±×¸®°í Bishop ÀÀ·ÂÀ» ±â¼úÇÏ´Â º¯¼ö ${chi}$´Â ÀÌ·ÐÀûÀ¸·Î ÀÏÁ¤ÇÑ °ªÀ» °¡Áö°í ÀÖÀ½À» ÀÔÁõÇÏ¿´´Ù. ÆÄ±«±ÔÁØ¿¡¼­ ÃàÂ÷ÀÀ·ÂÀÌ 0ÀÎ °æ¿ì Á¤ÀǵǴ Èí¼öÀÀ·ÂÀº ¸ð°üÈí¼ö·Â¿¡ ´ëÇÏ¿© ¼±ÇüÀûÀ¸·Î Áõ°¡ÇÏ¸ç ½ÇÇèÄ¡¿Í ÀÌ·ÐÄ¡°¡ ÀûÀýÇÏ°Ô ÀÏÄ¡ÇÏ¿´´Ù.
In this study, the triaxial behaviour of an unsaturated soil was analyzed by Bishop stress descriptions. $K_0$ stress paths and those final values were independent of matric suctions after describing by the Bishop stress. The failure criteria could be defined uniquely by the Bishop stress and were also independent of matric suctions. In the low level of matric suctions the failure criteria have a linear relationship and the estimated criterion fits the measured accurately. The variable ${chi}$ for describing the Bishop stress was a constant theoretically under the low level of matric suctions. The suction stress could be defined at zero deviatoric stress in the failure criteria and increased linearly with respect to matric suctions in both the theory and the experiments.
 
Ű¿öµå
Bishop stress;Failure criteria;Matric suction;Unsaturated soils;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.7, 2008³â, pp.17-24
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200834347672399)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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