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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.5, 1998³â, pp.181-190
È®Àå¸èÇÔ¼ö¸ðÇüÀ» ÀÌ¿ëÇÑ ºñ¼±Çë ¾Ð¹Ð¼Óµµ ¸ðÇüÀÇ °³¹ß
( Nonlinear Consolidation Model Using an Extended Power Function )
¿øÁ¤À±;À庴¿í; Á¤È¸¿ø, ¼­¿ï´ëÇб³ ´ëÇпø ³ó°øÇаú;Á¤È¸¿ø, ¼­¿ï´ëÇб³ ³ó»ý´ë ³ó°øÇаú;
 
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±¸ÀÇ ÀÏÂ÷¿ø ¾ÐÃà°Åµ¿À» Àß Ç¥ÇöÇÒ ¼ö ÀÖ´Â È®Àå¸èÇÔ¼ö ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ºñ¼±Çü ¾Ð¹Ð¼Óµµ ¸ðÇüÀ» °³¹ßÇϰí, ºñ¼±Çü À¯ÇÑ¿ä¼Ò ÇÁ·Î±×·¥À» °³¹ßÇÏ¿© ħÇÏ·®°ú ¾Ð¹Ð¼Óµµ¸¦ °è»êÇÏ¿´´Ù. ¾ç»ê-¹°±Ý Áö±¸ 4°³ ÁöÁ¡ÀÇ Ç¥ÁؾйнÃÇè °á°ú¸¦ ÀÌ¿ëÇÏ¿© È®ÀåÀûÇÔ¼öÀÇ ¸Å°³º¯¼ö¸¦ ±¸Çϰí, ¾Ð¹Ð¼Óµµ¿Í ħÇÏ·®À» °è»êÇÑ °á°ú¸¦ ºñ¼±Çü ¾Ð¹ÐÇØ¼® ÇÁ·Î±×·¥ÀÎ CONSOLÀÇ °á°ú¿Í ºñ±³ÇÏ¿´´Ù. º» ¸ðÇü¿¡ ÀÇÇÑ Ä§ÇÏ·®°ú ¾Ð¹Ð¼Óµµ´Â CONSOLÀÇ °á°ú¿Í Àß ÀÏÄ¡Çϰí ÀÖ´Ù. º» ¸ðÇü°ú CONSOLÀº °¢ÀÇ ¾ÐÃ༺ÀÇ º¯È­¸¦ °í·ÁÇϰí Àֱ⠶§¹®¿¡ Terzaghi ¾Ð¹ÐÀ̷п¡ ºñÇØ ºü¸¥ ¾Ð¹Ð¼Óµµ¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. º» ¸ðÇü¿¡ ÀÇÇØ ±¸ÇØÁø ¾Ð¹Ð°î¼±Àº Terzaghi ¾Ð¹Ð°î¼±°ú CONSOL °á°úÀÇ Áß°£ÇüŸ¦ ¶ç°í ÀÖ´Ù. À¯È¿ÀÀ·ÂÀÇ Áõ°¡¼Óµµ°¡ ºü¸¥ ¹è¼ö°æ°è ºÎ±Ù¿¡¼­ÀÇ ¾Ð¹Ð°î¼±Àº µÎ °³ÀÇ Æ÷¹°¼±À¸·Î ±¸¼ºµÇ¾î ÀÖÀ¸¸ç µÎ °î¼±ÀÇ ±³Á¡, Áï º¯°îÁ¡Àº ±× ÁöÁ¡ÀÇ À¯È¿ÀÀ·ÂÀÌ ¼±Çà¾Ð¹ÐÇÏÁß¿¡ ´Ù´Ù¸¦ ¶§ ³ªÅ¸³­´Ù. CONSOrt°ú Terzaghi ¾Ð¹ÐÀ̷п¡¼­´Â ÇÏÁß Å©±â¿¡ »ó°ü¾øÀÌ ¾Ð¹Ð°î¼±ÀÇ °Åµ¿ÀÌ µ¿ÀÏÇÑ ¾ç»óÀ» º¸À̰í ÀÖÁö¸¸ º» ¸ðÇüÀÇ ¾Ð¹Ð°î¼±Àº ¼±Çà¾Ð¹ÐÇÏÁߺ¸´Ù Å« ÇÏÁß¿¡¼­¸¸ º¯°îÁ¡ÀÌ ¹ß»ýµÈ´Ù. À̰ÍÀº º» ¸ðÇüÀÌ ÇÏÁß Å©±âÀÇ ¿µÇâÀ» ±¸ÇöÇÒ ¼ö ÀÖ´Ù´Â °ÍÀ» º¸¿©ÁÖ°í ÀÖ´Ù.
One-Dimensional Nonlinear Consolidation Model(NCM) ivas developed by using an Extended Power Function Model, which could represent the compressibility of soils. A nonlinear finite element program for NCM was developed to analyze the porewater pressure dissipation and the settlement of saturated soils. Parameters used in compressibility model could be easily obtained from conventional oedometer test data. This model has been applied to Yansan-Mulgum area for the comparison with the results of CONSOL program and that of Terzaghi theory. A Good The rates of consolidation predicted by this model and CONSOL were faster than that of conventional Tergaghi theory, for they consider the nonlinear characteristics of soils. Consolidation curves of this model were located between Terzaghi and CONSOL curves. Consolidation curves near drainage boundary, where effective stress valied rapidly, seemed to reflect the variations of compressibility of sails. Consolidation curves near drainage boundary obtained from this model were composed of two parabolic curves. Intersection of the parabolic curves occurred when effective stress reached the value of preconsolidation stress. Moreover, thin model could be used to represent the effect of magnitude of applied load. whereas CONSOL and Terazghi theory could not.
 
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Nonlinear consolidation model;Nonlinear compressibility;Rate of consolidation;Settlement;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.5, 1998³â, pp.181-190
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448538)
¾ð¾î : Çѱ¹¾î
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