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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.5, 2008³â, pp.107-115
1Â÷¾Ð¹Ð°úÁ¤ÁßÀÇ Å©¸®ÇÁÀÇ ¿µÇâÀ» °í·ÁÇÑ ¿¬¾à Á¡¼ºÅäÁö¹ÝÀÇ Ä§Çϰŵ¿ ÇØ¼®
( An Analysis of the Settlement Behavior of Soft Clayey Ground Considering the Effect of Creep during the Primary Consolidation )
¹éÀ©Áø;¼ÛÀüÀü;ÃÖ¿ìÁ¤;±èÂù±â;¼Ûº´°ü; Àü³²´ëÇб³ »ý¹°»ê¾÷°øÇаú;ÀϺ» ¾ß¸¶±¸Ä¡´ëÇб³ »çȸ°Ç¼³°øÇаú;¿ø±¤´ëÇб³ Åä¸ñȯ°æ°øÇаú;´ëÁø´ëÇб³ °ø°ú´ëÇÐ °Ç¼³½Ã½ºÅÛ°øÇаú;Àü³²´ëÇб³ Áö¿ª.¹ÙÀÌ¿À½Ã½ºÅÛ °øÇаú;
 
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º» ¿¬±¸´Â 1Â÷¾Ð¹Ð ÁßÀÇ Å©¸®ÇÁÀÇ ¿µÇâ°ú YinÀÌ Á¦¾ÈÇÑ Åº-Á¡-¼Ò¼º ¸ðµ¨¿¡ ´ëÇÑ Àû¿ë¼ºÀ» °ËÅäÇÏ¿´´Ù. ź¼º¸ðµ¨À» ÀÌ¿ëÇÑ ÀϹÝÀûÀÎ ¾Ð¹ÐÀÌ·ÐÀº, 1Â÷¾Ð¹Ð °úÁ¤À» Ç¥ÇöÇÒ ¼ö ÀÖÀ¸³ª 2Â÷¾Ð¹ÐÀ» Ç¥ÇöÇÒ ¼ö ¾ø´Ù. ÀÌ·¯ÇÑ °á°ú´Â 2Â÷¾ÐÃàÀ» Ç¥ÇöÇÒ ¼ö ÀÖ´Â Á¡¼º¿¡ ±âÀÎÇϸç, ¶§·Î´Â Ladd µî(1977)ÀÌ Á¦¾ÈÇÑ °¡Á¤ A ¹× B¿Í °°Àº ½ºÄÉÀÏÈ¿°ú(½ÇÇè½Ç °ø½Ãü¿Í ÇöÀåÁ¶°Ç »çÀÌÀÇ Á¡ÅäÃþ µÎ²²ÀÇ Â÷ÀÌ)¿Í °ü·ÃµÇ¾îÁø´Ù. Åë»óÀûÀ¸·Î 1Â÷¾Ð¹Ð ÁßÀÇ Å©¸®ÇÁÀÇ Á¸Àç´Â ¸¹Àº ¿¬±¸ÀÚ¿¡ ÀÇÇØ È®ÀεǾîÁ³À¸¸ç, °¡Á¤ B°¡ Àß ¸Â´Â °ÍÀ¸·Î µÇ¾îÀÖ´Ù. ÇÑÆí, ´ëÇü¾Ð¹Ð½ÃÇèÀ» ÅëÇØ °¡Á¤ A¿Í BÀÇ Áß°£ÀûÀΠƯ¼ºÀÌ Aboshi(1973)¿¡ ÀÇÇÑ °¡Á¤ C·Î½á Á¦¾ÈµÇ¾îÁ³´Ù. º» ¿¬±¸¿¡¼­´Â 1Â÷¾Ð¹Ð ÁßÀÇ Ä§ÇÏ-½Ã°£°ü°è¿¡ ´ëÇÑ Å©¸®ÇÁÀÇ ¿µÇâÀ» ¸í¹éÈ÷ Çϱâ À§ÇØ, peat¿Í Á¡Åä¿¡ ´ëÇØ ºÐÇÒÇü ¾Ð¹Ð½ÃÇè±â¸¦ ÀÌ¿ëÇÏ¿© °¡Á¤ BÀÇ ¾Ð¹Ð½ÃÇèÀ» ÇàÇÏ¿´´Ù. ±×¸®°í YinÀÇ Åº-Á¡-¼Ò¼º ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ½ÇÇè°á°ú¸¦ ÇØ¼®ÇÏ¿´´Ù. ¾ò¾îÁø °á°ú´Â ´ÙÀ½°ú °°´Ù. 1Â÷¾Ð¹Ð Á¾·á½Ã¿¡ ºÐÇÒ °ø½ÃüÀÇ ¾ÐÃàÀº °úÀ×°£±Ø¼ö¾Ð ¼Ò»ê¼ÓµµÀÇ Â÷ÀÌ¿¡ ÀÇÇØ µ¿ÀÏÇÏÁö ¾Ê¾Ò´Ù. ¶ÇÇÑ ºÐÇÒÇü ¾Ð¹Ð½ÃÇè±â¿¡ ÀÇÇØ ÃøÁ¤µÈ Æò±Õº¯Çü·ü°ú YinÀÇ EVP ¸ðµ¨À» ÀÌ¿ëÇÑ ÇØ¼®Ä¡´Â Àß ÀÏÄ¡ÇÏ¿´´Ù. ±×·¯³ª °úÀ×°£±Ø¼ö¾ÐÀÇ ¼Ò»ê¿¡ ´ëÇØ¼­´Â ÃøÁ¤Ä¡°¡ Yin ¸ðµ¨¿¡ ºñÇØ »¡¸® ¼Ò»êµÇ¾ú´Ù.
This paper is performed to examine the effect of creep during the primary consolidation and the applicability of the Yin's EVP (Elasto-Visco-Plastic) model. In ordinary consolidation theories using the elastic model, the primary consolidation process can be expressed but the secondary consolidation process cannot. It is due to the viscosity, which can express the secondary consolidation, and is sometimes related to the scale effect (difference of the thickness of clay layer between laboratory sample and field condition) such as hypotheses Type A and Type B shown by Ladd et al. (1977). Usually, the existence of the creep during the primary consolidation has been conformed and the Type B is well acceped. On the other hand, from the large-scaled consolidation tests the intermediate characteristic between Type A and Type B was proposed as Type C by Aboshi (1973). In this study, to clarify the effect of creep on the settlement-time relation during the primary consolidation in detail, Type B consolidation tests were performed using the separate-type consolidation test apparatus for a peat and clay. Then the test results were analyzed by using Yin's EVP Model (Yin and Graham, 1994). In conclusion, followings were obtained. At the end of primary consolidation, the compression for the subspecimens should not be the same because of the difference of the excess pore water pressure dissipation rate. And the average settlement measured by the separate-type consolidometer coincides with the analyzed one using the Yin's EVP model. As for the dissipation of the excess pore water pressure, however, the measured excess pore water pressure dissipates faster compared with the Yin's model.
 
Ű¿öµå
Creep;EVP model;Primary consolidation;Separate-type consolidometer;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.5, 2008³â, pp.107-115
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200816256327230)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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