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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.5, 2010³â, pp.57-64
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( Comparative Studies of Kriging Methods for Estimation of Geo-Layer Distribution of Songdo International City in Incheon )
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Å©¸®±ë±â¹ýÀº Áö¹Ý°øÇко߿¡¼­ ÁöÃþ ¶Ç´Â Áö¹ÝÁ¤¼öÀÇ °ø°£Àû ºÐÆ÷ ÃßÁ¤À» À§ÇÏ¿© Àû¿ëµÇ°í ÀÖ´Ù. °¢°¢ÀÇ Å©¸®±ë±â¹ý¿¡ µû¶ó¼­ ÃßÁ¤°á°ú°¡ »óÀÌÇϱ⠶§¹®¿¡ ÃßÁ¤¸ñÀû¿¡ ºÎÇÕÇÏ´Â Å©¸®±ë ±â¹ý ¼±ÅÃÀº Áß¿äÇÑ ¹®Á¦ÀÌ´Ù. º» ³í¹®¿¡¼­´Â ´Ü¼øÅ©¸®±ë, Á¤±ÔÅ©¸®±ë, ÀϹÝÅ©¸®±ëÀ» »ç¿ëÇÏ¿© ÀÎõ ¼Ûµµ±¹Á¦µµ½ÃÀÇ ¾Ð¹ÐÃþ µÎ²²¸¦ ÃßÁ¤ÇÏ¿´À¸¸ç, Å©¸®±ë ±â¹ý¿¡ µû¸¥ ÃßÁ¤°á°úÀÇ ½Å·Ú¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ºÐ¼®°á°ú ´Ü¼øÅ©¸®±ëÀº Á¤±ÔÅ©¸®±ë°ú ÀϹÝÅ©¸®±ë¿¡ ºñÇÏ¿© ÃøÁ¤ÀÚ·á¿Í ¸Ö¸® ¶³¾îÁø À§Ä¡¿¡¼­ÀÇ ¾Ð¹ÐÃþ µÎ²²¸¦ Å©°Ô ÃßÁ¤Çϸç, ÃßÁ¤°á°úÀÇ ½Å·Ú¼ºµµ ³·¾Ò´Ù. ÀϹÝÅ©¸®Å·Àº ÃøÁ¤ÀÚ·á¿Í ¸Ö¸® ¶³¾îÁø ÀϺΠÀ§Ä¡¿¡¼­ ¾Ð¹ÐÃþ µÎ²²¸¦ À½ÀÇ °ªÀ¸·Î ÃßÁ¤ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¾Ð¹ÐÃþ µÎ²²¸¦ ÃßÁ¤Çϱâ À§ÇÑ °¡Àå ÀûÀýÇÑ Å©¸®±ë ±â¹ýÀº °¡Àå ½Å·Ú¼ºÀÌ ³ô°í ¹°¸®ÀûÀ¸·Î ÇÕ´çÇÑ ÃßÁ¤¹üÀ§ ³»ÀÇ °ªÀ» ÃßÁ¤ÇÑ Á¤±ÔÅ©¸®±ë ±â¹ýÀÎ °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù.
Kriging techniques have been used to estimate the spatial distribution of soil layers and soil properties in the geotechnical engineering area. Since the selected kriging technique may provide different values of estimation, the selection of method is important in the geotechnical estimation. In this paper, the spatial distribution of the thickness of consolidation layer of Songdo International City is estimated using simple, ordinary, and universal kriging techniques, and the reliability of estimated results is analyzed. It is shown that the consolidation layer thickness estimated by the simple kriging technique is larger than those by other kriging techniques when the location of estimation is far from the locations where the measured data exist. In this case, the reliability of the simple kriging technique is observed to be lower than those of other techniques. Universal kriging gives a negative value for thickness of consolidation layer in some locations away from the data. It is concluded that the ordinary kriging is the most optimized estimation technique because the reliability of ordinary kriging technique is higher than those of other ones and the consolidation layer thickness estimated by the ordinary kriging locates within the reasonable range.
 
Ű¿öµå
Kriging with a trend;Ordinary kriging;Simple kriging;Variogram;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.5, 2010³â, pp.57-64
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201023064629499)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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