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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.5, 2002³â, pp.237-249
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ÈëÀÇ º¯Çü °Åµ¿ ¿¹ÃøÀ» À§ÇÑ ºñ¼±Çü À̹漺 ¸ðµ¨ÀÇ °³¹ß°ú Àû¿ë
( Numerical Analysis of Anisotropic Soil Deformation by the Nonlinear Anisotropic Model ) |
| Á¤Ãæ±â;Á¤¿µÈÆ;À±Ã汸; ¼¿ï´ëÇб³ °ø°ú´ëÇÐ Áö±¸È¯°æ½Ã½ºÅÛ °øÇкÎ;¼¿ï´ëÇб³ °ø°ú´ëÇÐ Áö±¸È¯°æ½Ã½ºÅÛ °øÇкÎ;¼¿ï´ëÇб³ °ø°ú´ëÇÐ Áö±¸È¯°æ½Ã½ºÅÛ °øÇкÎ;
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| ÆÄ±« ÀÌÀü »óÅÂÀÇ ³·Àº º¯Çü·ü ¼öÁØ ÇÏ¿¡¼ Á¤È®ÇÑ Áö¹Ý º¯Çü °Åµ¿ ¿¹ÃøÀ» À§Çؼ´Â ÈëÀÇ ºñ¼±Çü¼º°ú À̹漺À» ÇÔ²² °í·ÁÇØ¾ß ÇÑ´Ù. º» ¿¬±¸¿¡¼´Â Ramberg-Osgood ½ÄÀ» ÀÌ¿ëÇÏ¿© ÈëÀÇ ºñ¼±Çü¼ºÀ» ¸ð»çÇϰí Á÷±³À̹漺À» µµÀÔÇÏ¿© ÈëÀÇ À̹漺À» ±¸ÇöÇÑ »õ·Î¿î ¸ðµ¨À» °³¹ßÇÏ¿´´Ù. »õ·Ó°Ô °³¹ßÇÑ ºñ¼±Çü À̹漺 ¸ðµ¨À» ¿©·¯ ºñ±³ ´ë»ó ¸ðµ¨°ú ÇÔ²² °£´ÜÇÑ °æ°èÄ¡ ¹®Á¦¿Í ¿øÇü ±âÃÊ ¹®Á¦¿¡ Àû¿ëÇÏ¿´´Ù. ±× °á°ú À̹漺À» ³ªÅ¸³»´Â ź¼º°è¼öºñ°¡ üÀû °è¼ö, Á¤Áö Åä¾Ð°è¼ö, ±×¸®°í À¯È¿ ÀÀ·Â °æ·Î¿¡ Å« ¿µÇâÀ» ¹ÌÄ¡´Â »ç½ÇÀ» ¾Ë¾Æ³»¾úÀ¸¸ç, ¿øÇü ±âÃÊ ÇØ¼®À» ÅëÇØ Ãʱâ ÁöÁß ÀÀ·Â »óŸ¦ °í·ÁÇÑ ÈëÀÇ ºñ¼±Çü¼ºÀÌ ÁöÇ¥ ħÇÏ¿¡ Å« ¿µÇâÀ» ÁÜÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| Nonlinearity and anisotropy of soil should be considered for the exact prediction of deformation before the failure state. In this study, a new constitutive model is developed in which the nonlinearity of soil is formulated by Ramberg-Osgood equation and the soil anisotropy is implemented by the cross-anisotropic elasticity. Nonlinear anisotropic model and other models for comparison are used to analyze the simple boundary value problems and the circular footing problem. In the results, the anisotropic ratio of elastic modulus is a key value for the bulk modulus of soil, the coeffcient of earth pressure at rest, and the slope of effective stress paths. Furthermore, it is found that the nonlinearity of soil considering the in-situ stresses has the great influence on the magnitude of settlements. |
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| Ű¿öµå |
| Cross-anisotropy;Nonlinearity;Ramberg-Osgood equatiot;Small strain level; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.5, 2002³â, pp.237-249
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921407929)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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