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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.5, 1998³â, pp.129-142
Creep º¯ÇüÀ» °í·ÁÇÑ ¾Ð¹ÐÇØ¼® ÇÁ·Î±×·¥ÀÇ °³¹ß°ú Àû¿ë¼º ºÐ¼®
( The Study on the Development and the Applicability of Consolidation Analysis Program Considering the Creep Strain )
±è¼ö»ï;Á¤½Â¿ë;¾È»ó·Î; Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ°øÇаú;Áß¾Ó´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú ¹Ú»ç¼ö·á, ½Ã¼³¾ÈÀü±â¼ú°ø´Ü ¼ö¸®½Ã¼³º»ºÎ;;
 
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º» ¿¬±¸¿¡¼­´Â ÆÄ±«°­µµÀ̳»ÀÇ ÀÏÁ¤ÇÏÁß »óÅ¿¡¼­ Àå±âÀûÀ¸·Î ÁøÇàµÇ´Â ¿¬¾àÁö¹ÝÀÇ Ä§ÇÏÆ¯¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇÏ¿© Creep º¯Çü¼ººÐÀ» °í·ÁÇÑ ±¸¼º¹æÁ¤½ÄÀ» À¯µµÇϰí, À¯ÇÑ¿ä¼ÒÇØ¼® ÇÁ·Î±×·¥À» °³¹ßÇÏ¿© À̸¦ ¹ÙÅÁÀ¸·Î Åä°ø±¸Á¶¹°ÀÇ Àå±âÀûÀÎ º¯ÇüÀ» ÇÕ¸®ÀûÀ¸·Î ¿¹ÃøÇÔÀ¸·Î¼­ ¿¬¾àÁö¹Ý»ó Åä°ø±¸Á¶ ¹°ÀÇ ¼³°è ¹× ½Ã°ø°ü¸®¿¡ ±â¿©ÇϰíÀÚ ÇÏ¿´´Ù. Á¡¼ºÅäÀÇ Åº.¼Ò¼º°Åµ¿À» Ç¥ÇöÇϱâ À§ÇØ Modified Cam Clay¸ðµ¨ÀÌ »ç¿ëµÇ¾úÀ¸¸ç, Creepº¯ÇüÀ» °è»êÇϴµ¥ À־´Â üÀû Creep¿ä¼Ò¸¦ °í·ÁÇÒ °æ¿ì 2Â÷ ¾Ð¹Ð°è¼ö C,¸¦ Àû¿ëÇÏ¿´°í, ÃàÂ÷ Creep¿ä¼Ò¸¦ °í·ÁÇÒ °æ¿ì Singh & Mitchel Creep°æÇè½ÄÀ» ÅëÇÑ m, a, A »ó¼ö¸¦ ÀÌ¿ëÇÑ °ÍÀ¸·Î °³¹ßµÈ ÇÁ·Î±×·¥ÀÇ ½Å·Ú¼ºÀ» °ËÁõÇϱâ À§ÇÏ¿© ÀÌ·ÐÇØ ¹× ½ÇÇèÄ¡¿Í ºñ±³ÇÏ¿´°í, Àû¿ëµÈ °¢ »ó¼öµéÀÇ ¹Î°¨µµ ¸¦ ºÐ¼®ÇÑ °á°ú, °³¹ßµÈ ÇÁ·Î±×·¥Àº Àû¿ë¼ºÀÌ ÁÁÀº °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. ¶ÇÇÑ ±¹³»¿Ü 2°³ÀÇ ÇöÀå¿¡ Àû¿ëÇÑ °á°ú, Á¦¹æÀÇ º¯ÇüÇØ¼®¿¡ ÀÖ¾î CreepÀ» °í·ÁÇÏÁö ¾ÊÀº °æ¿ìº¸´Ù CreepÀ» °í·ÁÇÑ °æ¿ì°¡ ¿ÀÂ÷°¡ Àû°Ô ³ªÅ¸³ª°í üÀû Creep¸¸À» °í·ÁÇÑ °æ¿ì´Â ¾à°£ °ú¼ÒÆò°¡µÇ °í ÃàÂ÷ Creep±îÁö °í·ÁÇÑ °æ¿ì´Â ¾à°£ °ú´ëÆò°¡µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. µû¶ó¼­ CreepÁ¤¼ö¸¦ ¾ò±â À§ÇÑ ½ÇÇè±âÀÇ °³¹ß, ÀûÁ¤ ÅäÁúÁ¤¼öÀÇ ¼±Åà µî ÇâÈÄ¿¡µµ Áö¼ÓÀûÀÎ ¿¬±¸°¡ ¿ä±¸µÈ´Ù.
This research is focused on the inducement of the constitutive equation considering the creep strain component and on the development of a finite element method program. The purpose of this research was to contribute to the design of construction structures or to the construction management in soft clay ground through predicting the long-term strain of construction structures reasonably bused on the above program. Modified Cam Clay model was adopted to describe the elastic-plastic behavior of clayey soil. And in the calculation of the creep sprain, the secondary coefficient of consolidation C. was applied for considering the volumetric creep element and the constants m, $alpha$, A were rosed by the empirical creep equation proposed by Singh 8E Mitchell for considering the deviatoric creep element. To examine the reliability of the program which is developed in this study, the estimated values by this program were compared with the theoretical solution and the experimental results. And the applicability of the developed program was found to be reliable from the sensitive analysis of each parameters used in this study. According to the results obtained from the application of the program on the field measurement data, the estimated values by the program were found with be consistent with the actual values. And from the analysis of the displacement of embankments, the case of considering the creep behavior induced much fower errors than the case of neglecting it. But the results obtained from considering the volumetric creep behavior only were slightly underestimated the results from considering the deviator creep behavior showed the slightly overestimated values. Therefore, it remains the task of further studios to develop the laboratory test devices to obtain the reliable creep parameters, and to select the appropriate soil parameters, etc.
 
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Creep;Modified Cam-Clay model;Constitutive equation;Finite element method;Settlement;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.5, 1998³â, pp.129-142
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448478)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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