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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.2, 1992³â, pp.45-58
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ÇѰè»óÅ °£°Ýºñ¸¦ ÀÌ¿ëÇÑ ±¸¼º¸ðµ¨
( A Constitutive Model Using the Spacing Ratio of Critical State ) |
| À̽·¡;¿À¼¼ºØ;°ü±âö; Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú ¹Ú»ç°úÁ¤, Çѱ¹µµ·Î°ø»ç ¿¬±¸¿ø;;
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| Áö¹ÝÀç·áÀÇ Åº¼Ò¼º ±¸¼º ¸ðµ¨Àº À¯¿¬¼º°ú ¾ÈÁ¤¼ºÀ» µ¿½Ã¿¡ ¸¸Á·ÇÏ¿©¾ß °øÇÐÀûÀ¸·Î Àǹ̸¦ °¡Áö¸ç ½Ç¿ëÀûÀ¸·Î »ç¿ëµÉ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ¾ÈÁ¤¼ºÀÌ ÀÖ´Â °è¼ö¸¦ »ç¿ëÇÏ´Â ¼öÁ¤ Cam-clay ¸ðµ¨À» ±Ù°£À¸·Î, ÇѰè»óÅ °£°Ýºñ¸¦ °è¼ö·Î µµÀÔÇÏ¿© ´õ¿í À¯¿¬¼ºÀÌ ÀÖ´Â ¸ðµ¨À» Á¦¾ÈÇÏ¿´´Ù. ÇѰè»óÅ °£°Ýºñ´Â Ãß°¡ÀûÀÎ ½ÇÇè¾øÀÌ °£ÆíÇÏ°Ô ±¸ÇÒ ¼ö ÀÖÀ¸¸ç ƯÈ÷ ºñ¹è¼ö Àü´Ü°Åµ¿¿¡ ´ëÇÏ¿© ½Ç¿ëÀûÀ¸·Î »ç¿ëµÉ ¼ö ÀÖ´Ù. Á¦¾ÈµÈ ¸ðµ¨Àº ºñ ¹è¼öÀü´Ü »ïÃà¾ÐÃà½ÃÇè¿¡ ´ëÇÏ¿© ÀÀ·Â°æ·Î ¹× ÀÀ ·Â-º¯Çü·ü°ü°è¸¦ ¼öÁ¤ Cam-clay ¸ðµ¨¿¡ ºñÇÏ¿© ¸Å¿ì Á¤È®ÇÏ°Ô ¿¹ÃøÇÒ ¼ö ÀÖ¾ú´Ù. »Ó¸¸ ¾Æ´Ï¶ó Àü´Üº¯Çü·ü ¼Óµµ, Å©¸®ÇÁ ¹× ÀÀ·ÂÀÌ¿ÏÀÇ ¿µÇâÀ» °í·ÁÇÒ ¼ö ÀÖ¾ú´Ù. ƯÈ÷ ½ÇÁ¦ÀÇ »óŰæ°è¸éÀ» Ç¥Çö ź¼º -¿ÏÀü¼Ò¼º¸ðµ¨, »ç¿ëÇØ¾ß »ïÃà¾ÐÃà½ÃÇèÁß ºñ ¹è¼ö½ÃÇèÀÌ W W »ïÃà¾ÐÃà½ÃÇè½Ã Àü´Ü½ÃÇèÀ» ³í¹®¿¡¼ ÇØ¼®ÇÑ Á¡ÅäÁú Áö¹ÝÀÇ °Åµ¿¿¡ ´ëÇÏ¿© °ü·ÃÀ¯µ¿Ä¢À» µû¸¥´Ù´Â °¡Á¤ÀÌ Àß Àû¿ëµÇ±â ¶§¹®À̶ó°í ÆÇ´ÜµÈ´Ù. |
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| An elasto-plastic constitutive model for geological materials, which satisfies the flezibility and stability at the same time, can be used in a number of geotechnical problems. Using the spacing ratio of critical state, a flexible model is proposed based on the stability of modified Camflay model. The spacing ratio of critical state can be simply evaluated, and practically used in describing the undrained shearing behavior of clay. The proposed model has precisely predicted the stress paths and stress -strain relationships, compared with the modified Camflay model, with respect to undrained triaxial test results. Besides, the effects of strain rate, creep, and relaxation can also be considered. Using the quasi-state boundary surface, the constitutive relations are well predicted. Therefore, it is found that the assumption of associative flow rule is well posed for undrained behavior of normally consolidated clay. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.2, 1992³â, pp.45-58
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444559)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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