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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.4, 2006³â, pp.73-83
È®·ü·ÐÀû ´ï ħÅõ°Åµ¿ ÇØ¼®
( Stochastic Seepage Analysis of Dam )
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´ï ¾ÈÁ¤¼º Æò°¡¸¦ À§ÇÏ¿© ºÒÆ÷È­ ÀÌ·ÐÀ» ÀÌ¿ëÇÑ Ä§ÅõÇØ¼® ±â¹ýÀÌ ³Î¸® »ç¿ëµÇ°í ÀÖÀ¸³ª Áö¹ÝÀÇ ºÒÆ÷È­ °Åµ¿¿¡ ´ëÇÑ ÀÎ½Ä ºÎÁ·°ú ½ÇÇèÀýÂ÷ÀÇ ¹ø°Å·Î¿òÀ¸·Î ÀÎÇÏ¿© ÀÔ·Â ¹°¼ºÄ¡¿¡ ´ëÇÑ Ã¼°èÀûÀÎ ½ÇÇè°ú Æò°¡°¡ ÀϹÝÈ­µÇÁö ¸øÇϰí ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. Áö¹ÝÀÇ ºÒÆ÷È­ ¼ö¸®Æ¯¼ºÀº º¯µ¿¼º°ú ºÒÈ®½Ç¼ºÀ» ³»Æ÷Çϰí ÀÖÀ¸¸ç, À̴ ħÅõ¼ö·® ¹× °£±Ø¼ö¾Ð ºÐÆ÷ µî ´ïü ¹× Á¦¹æÀÇ Ä§Åõ°Åµ¿¿¡ ¿µÇâÀ» ¹ÌÄ£´Ù. º» ¿¬±¸¿¡¼­´Â ´ïÀÇ ½Éº®Àç·á¿¡ ´ëÇÑ ÇÔ¼öƯ¼º°î¼±°ú Åõ¼ö°è¼ö¸¦ ±¸ÇÏ´Â ½Ç³»½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ±×¸®°í, ºÒÆ÷È­¼ö¸®Æ¯¼ºÀÌ ´ïüÀÇ Ä§Åõ °Åµ¿¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» »ìÆìº¸±â À§ÇÏ¿© ÀԷ¹°¼ºÀÇ È®·ü·ÐÀû ºÐÆ÷¸¦ °í·ÁÇÑ ¼öÄ¡ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. ÇØ¼®°á°ú Fredlund¿Í Xing ÇÔ¼öƯ¼º°î¼±½Ä°ú CampbellÀÇ Åõ¼ö°è ¼ö½Ä¿¡¼­ º¯¼ö a¿Í nÀº °ªÀÌ Å¬¼ö·Ï, n°ú p´Â °ªÀÌ ÀÛÀ»¼ö·Ï Á¤»ó»óÅ¿¡¼­ÀÇ Ä§Åõ¼ö·®ÀÌ ¸¹¾Ò´Ù.
Seepage analysis through unsaturated zone based on the theory of unsaturated flow is commonly performed to evaluate dam safety. However, the concepts of unsaturated soil behavior have not been transferred into the hands of practicing geotechnical engineers since the problems involving unsaturated soils often have the appearances of being extremely complex. There is variability and uncertainty associated with the unsaturated hydraulic properties that in turn will lead to variability in predicting unsaturated soil behavior such as seepage rate and the pore water pressure distribution. In this paper, measurements of the soil-water characteristic curve and saturated hydraulic conductivity for the core material of dam were conducted. Then, finite element stochastic analysis was used to capture the effect of unsaturated hydraulic properties on the seepage behavior of dam. It is observed that the amount of seepage increases, as the values of unsaturated soil parameters a and n increase. The values of m and p showed opposite trend.
 
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Hydraulic conductivity curve;Monte Carlo simulation;Seepage;Soil water characteristic curve;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.4, 2006³â, pp.73-83
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200622219588825)
¾ð¾î : Çѱ¹¾î
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