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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.6, 2004³â, pp.85-94
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»çÁúÅäÀÇ Ã¼ÀûÆØÃ¢À» °í·ÁÇÑ ºñµî¹æ°æÈ ±¸¼º¸ðµ¨ : II. °ËÁõ
( An Anisotropic Hardening Constitutive Model for Dilatancy of Cohesionless Soils : II. Verification ) |
| ¿À¼¼ºØ;¹ÚÇöÀÏ;½Åµ¿ÈÆ;±è¿í;±Ç¿À±Õ; ¿µ³²´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø ´ï¾ÈÀü¿¬±¸¼Ò;¿µ³²´ëÇб³ Åä¸ñ°øÇаú;°è¸í´ëÇб³ Åä¸ñ°øÇаú;
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| µ¿¹Ý³í¹®¿¡¼´Â »çÁúÅäÀÇ Ã뼺Àû ÀÀ·Â-º¯Çü·ü °ü°è¿Í Àü´Ü½Ã ÆØÃ¢À» °í·ÁÇÒ ¼ö ÀÖ´Â ±¸¼º¸ðµ¨À» Á¦¾ÈÇÏ¿´´Ù. º» ¿¬±¸¿¡¼´Â Á¦¾ÈµÈ ¸ðµ¨ÀÇ °è¼ö¸¦ ü°èÀûÀ¸·Î °áÁ¤Çϱâ À§ÇÏ¿© ½Ç¼öÇü À¯ÀüÀÚ ¾Ë°í¸®Áò¿¡ ±Ù°ÅÇÑ ÃÖÀûÈ ±â¹ýÀÌ Àû¿ëµÇ¾úÀ¸¸ç, À̸¦ ÅëÇÏ¿© ±¸¼º¸ðµ¨¿¡ ÇÊ¿äÇÑ ÁÖ¿ä °è¼ö°ªµéÀ» °áÁ¤ÇÒ ¼ö ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼´Â Á¦¾ÈµÈ ¸ðµ¨À» °ËÁõÇϱâ À§ÇÏ¿© dzÈÅä½Ã·á¿¡ ´ëÇÑ $K_0$ ¾Ð¹Ð »ïÃà½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ¶ÇÇÑ Á¶¸³Åä¿¡ µî¹æ¾ÐÃà »ïÃà½ÃÇè°á°ú¸¦ ÀÌ¿ëÇÏ¿© Á¦¾ÈµÈ ¸ðµ¨À» °ËÁõÇÏ¿´´Ù. ÀÌ·¯ÇÑ ½ÃÇèÀÚ·áµé¿¡ ´ëÇÏ¿© Á¦¾ÈµÈ ¸ðµ¨Àº Ã뼺Àû ÀÀ·Â-º¯Çü·ü °ü°è ¹× üÀûÀÇ ÆØÃ¢°ú °°Àº ½ÇÁ¦ À¯È¿ÀÀ·Â °Åµ¿À» ÇÕ¸®ÀûÀ¸·Î ¸ðµ¨ÇÏ´Â °ÍÀÌ °¡´ÉÇÏ¿´´Ù. À̷κÎÅÍ Á¦¾ÈµÈ ¸ðµ¨ÀÌ Ç³ÈÅä ¹× Á¶¸³Åä¿Í °°Àº »çÁúÅäÀÇ °Åµ¿¿¡ ÀûÇÕÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| In the companion paper, a constitutive model was proposed in order to represent brittleness and dilatancy for cohesionless soils. An optimized design methodology was proposed on the basis of real-coded genetic algorithm in order to determine parameters fir the proposed model systematically. The material parameters were then determined by that algorithm. In order to verify the proposed model, triaxial tests were peformed under $K_0$ conditions for weathered soils. In addition, the results of istropic compressed triaxial tests for granular materials verified the proposed model. For those results the brittle stress-strain relationship and the dilatancy could be modeled reasonably by the proposed model. As a result it was found that the proposed model can appropriately represent the behavior on weathered soil and granular soil. |
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| Ű¿öµå |
| Constitutive model;Genetic algorithm;Granular soils;Triaxial tests;Weathered soils; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.6, 2004³â, pp.85-94
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922634117)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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