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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.6, 1999³â, pp.751-762
TDR(Time Domain Reflectometry)¸¦ ÀÌ¿ëÇÑ ºñÆ÷È­ Åä¾ç¿¡¼­ õÀÌ»óÅÂÀÇ ¿À¿°¿ø À̼ÛÈ®»ê Ư¼º¿¡ °üÇÑ ¿¬±¸ : (2) Àû¿ë
( Study on Characteristics of Transient Soulte Transport in the Vadose Zone by Using TDR: (2) Application )
¹ÚÀçÇö;¼­ÀÏ¿ø;¼±¿ìÁßÈ£; ¼­¿ï´ëÇб³ °øÇבּ¸¼Ò Ưº°¿¬±¸¿ø;¼­¿ï´ëÇб³ Åä¸ñ°øÇаú;¼­¿ï´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â õÀÌ»óÅÂÀÇ ºñÆ÷È­ ¿À¿°¿ø À̼ÛÈ®»ê Ư¼ºÀ» ºÐ¼®Çϱâ À§ÇÏ¿© Åä¾çÀÇ ¹°¸®, È­È®Àû Ư¼ºÀ» ¾Ë°í ÀÖ´Â µÎ Á¾·ùÀÇ ÇöÀåÅä¾ç(SUS,KUS)À» ÀÌ¿ëÇÏ¿© 1Â÷¿ø ½Ç³»½ÇÇèÀ» ¼öÇàÇÏ¿´´Âµ¥, õÀÌ»óÅÂÀÇ Åä¾ç³» ÇÔ¼ö·®°ú ¿À¿°¿øÀÇ ³óµµ¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© º» ¿¬±¸¿¡¼­ °³¹ßÇÑ TDRÀ» ÀÌ¿ëÇÑ ³óµµÃøÁ¤¹ýÀ» ÀÌ¿ëÇÏ¿´À¸¸ç, Áú·®ÆòÇüÀ» ÀÌ¿ëÇÏ¿© ÃøÁ¤¹æ¹ýÀÇ Á¤µµµµ ºÐ¼®ÇÏ¿´´Ù. ½ÇÇè°á°ú¿¡ ÀÇÇÏ¸é ±Þ°ÝÇÑ ½ÀÀ±Àü¼±ÀÇ ÀüÁø¿¡ µû¸¥ Á¾ÇüÀÇ ÇÔ¼ö·® º¯È­¸¦ °üÃøÇÒ ¼ö ÀÖ¾ú°í, À̶§ ¿À¿°¿øÀÇ À̼ÛÈ®»êÀº ½ÀÀ±Àü¼±À» Ãß¿ùÇÏÁö ¾ÊÀ¸¸é¼­ ³óµµ õÀ̱¸°£ÀÇ Áß½ÉÁ¡À¸·ÎºÎÅÍ Àü¹æ¿µ¿ªÀÇ ³óµµºÐÆ÷°¡ ½ÀÀ±Àü¼±¿¡¼­ÀÇ ÇÔ¼ö·® ºÐÆ÷¿Í À¯»çÇÑ Á¾ÇüÀ» ÀÌ·ç°í ÀÖÀ½À» °üÃøÇÒ ¼ö ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼­ Á¦¾ÈÇÑ ÃøÁ¤¹ýÀ» Àû¿ëÇÑ °á°ú ÇÔ¼ö·®ÀÌ 0.15ÀÌ»óÀÏ °æ¿ì ¸Å¿ì ÁÁÀº °á°ú¸¦ º¸¿´À¸¸ç, ÃøÁ¤¿ÀÂ÷¸¦ °ËÅäÇÑ °á°ú 10%ÀÌÇÏÀÇ ¿ÀÂ÷À²À» º¸¿´´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­ °³¹ßµÈ õÀÌ»óÅÂÀÇ ¿À¿°¿ø ³óµµ ÃøÁ¤¹ýÀº ±âÁ¸ÀÇ ¹æ¹ý¿¡ ºñÇÏ¿© Á¤È®Çϰí Àû¿ëÀÌ ¿ëÀÌÇÑ ÃøÁ¤¹æ¹ýÀ¸·Î ÆÇ´ÜµÈ´Ù. ¼öÄ¡¸ðÇü HYDRUS¸¦ ¼öÇàÇÑ ¼öÄ¡°á°ú¿Í ½ÇÇè°á°ú¸¦ ºñ±³ÇÏ¿´´Âµ¥, ºñÆ÷È­ È帧Ư¼ºÀº ½ÇÇè°á°ú¿Í ¼öÄ¡°á°ú°¡ ÀÏÄ¡Çϰí ÀÖÀ¸³ª, ¿À¿°¿ø À̼ÛÈ®»ê Ư¼ºÀº ¼öÄ¡°á°ú°¡ ½ÇÇè°á°ú¸¦ ´õ ¸¹ÀÌ È®»êµÇ´Â °æÇâÀ» º¸¿´´Ù. µû¶ó¼­ ¼öÄ¡¸ðÇüÀ» ÇöÀå¿¡ Àû¿ëÇÒ °æ¿ì ¼öÄ¡¸ðÇü¿¡ Àû¿ëÇÒ È®»êÁö¼ö´Â BTC ½ÇÇèÀ» ÅëÇÏ¿© ÃøÁ¤ÇÑ È®»êÁö¼ö, ¼öÂ÷È®»ê, ÈíÂø°è¼ö, Àû¿ë¿µ¿ªÀÇ Å©±â µîÀ» °í·ÁÇÏ¿© °áÁ¤ÇÏ¿©¾ß ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
In this study, a 1-D laboratory experiment was conducted to investigate the characteristics of transient unsaturated solute transport by using two kinds of soils of which properties were known by test. Especially the TDR method which is proposed in this study was used to measure water content and solute concentration. As results, in the transient flow, the wetting front moves down rapidly, and the distribution of solute concentration near the wetting front showed the similar type of the water content distribution(semi-bell type). A numerical model HYDRUS was used to compare with the experimental results. Numerical results for the water movement are similar to experimental result. However, numerical results of the distribution of solute concentration are more scattered than experimental results. It means that measured dispersivity, numerical dispersion, adsorption coefficient, and soil sample size etc. should be considered in order to determine the dispersivity used in the numerical model. The present measuring method was proved to be superior to other formula and to be an available method to apply to solute transport test. The measuring error of the developed method is estimated smaller than 10% while water content is larger than 0.15
 
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õÀÌ ºñÆ÷È­ ¿À¿°¿ø À̼ÛÈ®»ê;ºñÆ÷È­´ë;ºñÆ÷È­È帧;Transient Solute Transport;TDR;Vadose Zone;Unsaturated Flow;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.6, 1999³â, pp.751-762
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920063454)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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