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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.9, 2010³â, pp.25-35
È®·ü·ÐÀû ¹æ¹ýÀ» ÀÌ¿ëÇÑ ÀÎõ¼ÛµµÁö¹Ý ÀÌÂ÷¾ÐÃàħÇÏ·®ÀÇ °ø°£Àû ºÐÆ÷ Æò°¡
( Evaluation of Spatial Distribution of Secondary Compression of Songdo Marine Clay by Probabilistic Method )
±èµ¿ÈÖ;¹è°æµÎ;°í¼º±Ç;ÀÌ¿ìÁø; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇкÎ;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇкÎ;Æ÷½ºÄڰǼ³ °ÇÃà»ç¿µº»ºÎ °ÇÃà±â¼ú±×·ì;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇкÎ;
 
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ÇØ¾È¸Å¸³Áö¹Ý¿¡¼­ ¾Ð¹ÐÃþ µÎ²²´Â À§Ä¡¸¶´Ù »óÀÌÇϱ⠶§¹®¿¡ ÀÌÂ÷¾ÐÃàħÇϸ¦ °ø°£ÀûÀ¸·Î Æò°¡ÇØ¾ß ÇÑ´Ù. ÀÌ·¯ÇÑ ÀÌÂ÷¾ÐÃàħÇÏ·®ÀÇ °ø°£ÀûÀÎ ºÐÆ÷°¡ Æ÷ÇÔÇϰí ÀÖ´Â ºÒÈ®½Ç¼ºÀ» ÇÕ¸®ÀûÀ¸·Î Æò°¡Çϱâ À§ÇØ È®·ü·ÐÀû ¹æ¹ýÀÇ ÇÊ¿äÇÏ´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â Á¤±ÔÅ©¸®±ë±â¹ýÀ¸·Î ÃßÁ¤µÈ ¾Ð¹ÐÃþÀÇ °ø°£ÀûÀÎ ºÐÆ÷ ÃßÁ¤°á°ú¿Í Áö¹ÝÁ¤¼öµéÀÇ Æò±Õ°ú Ç¥ÁØÆíÂ÷¸¦ ÀÌ¿ëÇÏ¿© ÀÌÂ÷¾ÐÃàħÇÏ·®ÀÇ Æò±Õ°ú Ç¥ÁØÆíÂ÷¸¦ ºÐ¼®¿µ¿ª Àüü¿¡ ´ëÇÏ¿© »êÁ¤ÇÏ¿´´Ù. ÀÌ·¯ÇÑ °á°ú¸¦ ÀÌ¿ëÇÏ¿© ÀÌÂ÷¾ÐÃàħÇÏ·®ÀÌ Æ¯Á¤ ½Ã°£¿¡¼­ ¼³°è±âÁØÀ» ÃʰúÇÏ´Â ¿µ¿ªÀ» È®·ü·ÐÀû ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© Æò°¡ÇÏ¿´À¸¸ç, Çã¿ë±âÁØÀ» ÃʰúÇÏ´Â ¿µ¿ªÀÇ ¸éÀûÀº$C_{alpha}/(1+e_o)$ÀÇ º¯µ¿°è¼ö°¡ Å©°í È®·ü·ÐÀû ¼³°è±âÁØ a °¡ ÀÛÀ»¼ö·Ï Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¸¶Áö¸·À¸·Î ±¹³»¿¡¼­ È®·ü·ÐÀûÀÎ ¼³°è±âÁØÀÌ È®¸³µÉ °æ¿ì¿¡´Â ¿¬¾àÁö¹Ý¼³°è¿¡ º» ³í¹®¿¡¼­ Á¦½ÃÇÑ È®·ü·ÐÀûÀÎ ¹æ¹ýµéÀ» Á÷Á¢ÀûÀ¸·Î Àû¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
Settlement at reclamation area caused by secondary compression should be considered using spatial evaluating method because the thickness of consolidation layer varies at every location. Probabilistic method can be implemented to evaluate uncertainty of spatial distribution of secondary compression. This study spatially evaluated mean and standard deviation of secondary compression in the overall analyzing region using spatial distribution of consolidation thickness estimated by ordinary kriging method and statistical values of soil properties. And then, the area where secondary compression exceeds a design criterion at the specific time was evaluated using probabilistic method. It was observed that the area exceeding the design criterion increased as the variability of $C_{alpha}/(1+e_o)$ increased or the probabilistic design criterion 0: decreased. It is considered that the probabilistic method can be used for the geotechnical design of soft ground when a probabilistic design criterion is established in the specification.
 
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Ordinary kriging;Probabilistic method;Secondary compression;$C_{alpha}/C_c$;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.9, 2010³â, pp.25-35
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201009654401119)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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