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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.4, 2008³â, pp.15-21
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( A Long Term Characteristics of Hydraulic Conductivity and Tensile Strength of Natural Fiber Drain with respect to Installation Conditions )
ÀåÁø¿µ;À忬¼ö;Á¶»ï´ö; ÅÂÁ¶¿£Áö´Ï¾î¸µ Áö¹Ý»ç¾÷ºÎ;µ¿±¹´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;
 
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º» ¿¬±¸¿¡¼­´Â 3°¡Áö Á¶°Ç(Èë / ÇØ¼ö / Áõ·ù¼ö)¿¡ ´ëÇØ 3, 9, 18°³¿ù µ¿¾È Ÿ¼³ÇÑ Ãµ¿¬¸¶¼¶À¯ ¹è¼öÀç(NFD)·Î ÀÎÀå ¹× Åõ¼öƯ¼ºÀ» ½Ç½ÃÇÏ¿©, Ÿ¼³µÇÁö ¾ÊÀº NFD¿ÍÀÇ ¿­È­Æ¯¼ºº¯È­¸¦ ºñ±³ÇÏ¿© º¸¾Ò´Ù. Èë/ÇÊÅÍ ½ÃÇè¿¡ ÀÇÇÑ Åõ¼ö°è¼ö´Â ¹«Å¸¼³ ¹è¼öÀç ÇÊÅͽÃÇèÀÇ Åõ¼ö°è¼öº¸´Ù °¨¼ÒÇÏ¿´´Âµ¥, Ÿ¼³ ½Ã°£ÀÌ °æ°úµÊ¿¡ µû¶ó Èë Ÿ¼³ ÅäÁ¶¿¡¼­ ¹è¼öÀç°¡ ºÎÆÐµÇ¾î Åõ¼ö½ÃÇè½Ã Á¡ÅäºÐÀÌ ¹«Å¸¼³ ¹è¼ö°èº¸´Ù Ÿ¼³ ¹è¼öÀç ÇÊÅÍ¿¡ ½±°Ô ħÅõÇÏ¿© ¼¶À¯ÀÇ °ÝÀÚ°ø°£À» ¸Þ¿ö ¹ß»ýÇÏ´Â ¸·Èû Çö»ólogging)ÀÌ ½ÉÈ­µÇ¾ú±â ¶§¹®ÀÌ´Ù. Ÿ¼³±â°£ °æ°ú¿¡ µû¸¥ ¹è¼öÀçÀÇ ÀÎÀå°­µµº¯È­´Â ÇØ¼ö³ª Áõ·ù¼ö Ÿ¼³ ¹è¼ö°èÀÇ °­µµº¯È­¿¡ ºñÇØ Èë Ÿ¼³ ¹è¼ö°èÀÇ °­µµº¯È­°¡ ´õ Å©°Ô ³ªÅ¸³µÀ¸¸ç ƯÈ÷ ÇÏÀý°¡ÀÇ °­µµÀú°¨ÀÌ µ¿Àý±â¿¡ ºñÇÏ¿© Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Long term changes of hydraulic properties and tensile strength of natural fiber drain (NFD) are analyzed and compared with those of intact NFD's. NFD was buried in distilled water, two types of seawater and clay soils obtained in southern and western parts of Korea, Kwang-Yang and Si-hwa. Specimens are taken out in 0, 3, 9 and 18 month intervals, and durability tests of the NFD are performed. Hydraulic conductivity of the NFD samples decreased compared with that of intact NFD samples, because clay particles easily passed to coarsened mesh of filters and clogged the porous stone below and reduced hydraulic conductivity. Tensile strength of drains from the soil bucket is reduced larger than those in the seawater and the distilled water. Strength reduction was higher in summer than winter.
 
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Clogging;Hydraulic conductivity;Installation;Natural fiber drain;Tensile strength;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.4, 2008³â, pp.15-21
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200821036726094)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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