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Çѱ¹Áö¹Ý°øÇÐȸ / v.10, no.1, 1994³â, pp.7-18
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°ú¾Ð¹Ð»óÅ ¹× ¹Ýº¹ÇÏÁßÀ» ¹Þ´Â Á¡ÅäÁö¹Ý¿¡ ´ëÇÑ ±¸¼º¸ðµ¨
( Constitutive Equation for Clay in Overconsolidation State and Under Cyclic Loading ) |
| À̽·¡;±èÁÖ¿ë; Á¤Ä¡ÀÎ, Çѱ¹°úÇÐ ±â¼úÀÎ Åä¸ñ°øÇаú;Á¤È¸¿ø, Çѱ¹°úÇÐ ±â¼ú¿ø Åä¸ñ°øÇаú;
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| º» ¿¬±¸¿¡¼´Â ´ÜÁ¶ÇÏÁß°ú ¹Ýº¹ÇÏÁß¿¡ ´ëÇÑ Á¡ÅäÁö¹ÝÀÇ °Åµ¿À» Ç¥ÇöÇÒ ¼ö ÀÖ´Â »õ·Î¿î ±¸¼º¸ðµ¨À» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ ¸ðµ¨Àº °ú¾Ð¹Ð»óÅ¿¡¼ÀÇ ÀÀ·Â-º¯Çü·ü °ü°è¸¦ ½Ö°î¼±½ÄÀ¸·Î °¡Á¤Çϰí ÇѰè»óÅÂÀ̷аú °áÇÕ½ÃÄÑ ºñ¹è¼ö ÀÀ·Â°æ·Î¸¦ ¿¹ÃøÇÑ´Ù. ¿¡³ÊÁöºÐ»ê½ÄÀ» ÀÌ¿ëÇÏ¿© °³¹ßµÈ ÀÌ ±¸¼º¸ðµ¨Àº ´ÜÁ¶ÇÏÁß ÀÛ¿ë½Ã¿¡ ¹Ì¾àÇÑ °ú¾Ð¹Ð»óÅ ¹× °ú´ÙÇÑ °ú¾Ð¹Ð»óÅÂÀÇ Á¡¼ºÅä°Åµ¿À» Ç¥ÇöÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ ¹Ýº¹ÇÏÁßÇÏ¿¡¼ÀÇ °Åµ¿À» ³ªÅ¸³»±â À§ÇÏ¿© ´ÜÁ¶ÇÏÁß¿¡ ´ëÇÏ¿© °³¹ßµÈ ±¸¼º¸ðµ¨¿¡ ºñ¹è¼ö °æ·Î°£°Ýºñ À̵¿ÇÔ¼ö¸¦ µµÀÔÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© ÇѰ³ÀÇ Ãß°¡ÀûÀÎ ¸ðµ¨°è¼ö°¡ ÇÊ¿äÇÏ¸ç ±× °ªÀº ÇÕ¸®Àû ¹æ¹ýÀ¸·Î ½ÇÇè°á°ú·ÎºÎÅÍ »êÁ¤µÉ ¼ö ÀÖ´Ù. º» ±¸¼º¸ðµ¨Àº ºñ±³Àû ½±°í Á¤È®ÇÏ°Ô ¹Ýº¹ÇÏÁßÀ» ¹Þ´Â Á¡¼ºÅäÁö¹ÝÀÇ ºñ¹è¼ö °Åµ¿¿¡ ´ëÇÑ ½ÇÇè°á°ú¸¦ ¿¹ÃøÇÑ´Ù. |
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| A new model for describing the behavior of clay under monotonic and cyclic loading is proposed. This model uses the hyperbolic representation for the stress -strain relationship in overconsolidated state and it describes undrained effective stress path on the basis of the critical state theory. The developed constitutive model by using an energy dissipation equation can describe the behavior of clay in heavily overconsolidated state as u.ell as lightly overconsolidated state under monotonic loading. In order to extend the model for the behavior of clay under cyclic loading, a shift function of undrained stress spacing ratio is introduced in the constitutive model developed for monotonlc loading. A single additional parameter is required to represent the cyclic effect and it can be reasonably deter mined from the test results. The measured behavior in undrained cyclic triaxial tests has been easily and precisely predicted by the newly developed constitutive model. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.10, no.1, 1994³â, pp.7-18
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411920445278)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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