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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.1, 2000³â, pp.133-142
ºÒÆ÷È­ dzȭÅäÀÇ Åõ¼öƯ¼º ÃøÁ¤
( Measurements of Permeability Characteristics for Unsaturated Weathered Soils )
·ùÁöÇù; ÇÑ·Á´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ºÒÆ÷È­ Åõ¼ö°è¼ö¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© Klute(1965a)¿¡ ÀÇÇÏ¿© Á¦¾ÈµÈ Á¤ÀûÃøÁ¤¹æ¹ýÀÇ ¿ø¸®¿¡ axis-translationÀÇ ±â¹ýÀ» Àû¿ëÇÏ¿© »õ·Î¿î ½ÇÇèÀåÄ¡¸¦ °³¹ßÇÏ¿´´Ù. ÀÌ ½ÇÇèÀåÄ¡´Â ¸ð°üÈí¼ö·Â(matric suction)ÀÇ Áõ°¡¿¡ µû¸¥ ÇÔ¼öƯ¼º°ú Åõ¼ö°è¼öÀÇ º¯È­¸¦ µ¿½Ã¿¡ ÃøÁ¤ÇÒ ¼ö ÀÖµµ·Ï ¼³°èµÇ¾ú´Ù. ½ÇÇè¿¡´Â ºÒÆ÷È­ Åõ¼öƯ¼º°ú No.200ü Åë°ú ¼¼¸³ºÐÀÇ »óÈ£°ü°è¸¦ ±Ô¸íÇϱâ À§ÇÏ¿© °¢°¢ ¼¼¸³ÇÔÀ¯·®ÀÌ 7.3%(ÀÎÁÖ), 19.6%(¼ºÈ¯), 35.9%(±¸¸®)ÀÎ ½Ã·á¸¦ ÀÎÁÖ, ¼ºÈ¯, ±¸¸®Áö¿ª¿¡¼­ äÃëÇÏ¿© »ç¿ëÇÏ¿´´Ù. ½ÇÇè°á°ú¿¡ ÀÇÇÏ¸é ºÒÆ÷È­ÅäÀÇ Åõ¼ö°è¼ö¿Í üÀûÇÔ¼ö´Â ½Ã·áÀÇ ¹Ðµµ°¡ Áõ°¡ÇÏ´Â °æ¿ì ÀüüÀûÀ¸·Î °¨¼ÒÇÏ¿´À¸¸ç ¸ð°üÈí¼ö·ÂÀÌ Áõ°¡ÇÔ¿¡ µû¶ó Á¡Â÷ ºñ¼±ÇüÀûÀ¸·Î °¨¼ÒÇÏ´Â °Åµ¿À» º¸¿´´Ù. ¶ÇÇÑ ºÒÆ÷È­ÅäÀÇ Åõ±¸°è¼ö¿Í üÀûÇÔ¼öºñ´Â »óÈ£ ºñ¼±Çü°Åµ¿À» º¸¿´´Ù. üÀûÇÔ¼öºñ¿Í Åõ±¸°è¼ö¸¦ Á÷Á¢ ºñ±³ÇÏ´Â ¹æ¹ýÀ¸·Î °æÇè»ó¼ö A,B¸¦ No.200ü Åë°ú ¼¼¸³ºÐÀÇ ÇÔÀ¯·®¿¡ µû¶ó °áÁ¤ÇÏ¿´À¸¸ç, °æÇè»ó¼ö A, B¸¦ ÀÌ¿ëÇϸé Á÷Á¢ ÈëÀÇ ÇÔ¼öƯ¼º°î¼±À¸·ÎºÎÅÍ ºÒÆ÷È­ Åõ¼ö°è¼ö¸¦ ÃßÁ¤ÇÒ ¼ö ÀÖ´Ù.
Series of tests were carried out to study permeability characteristics of unsaturated soils. The weathered soils taken from Inju, Sungwhan, and Kuri, were selected to have different amount of fine grained soils in order to find a possible correlation between the unsaturated permeability behavior and fine grained soils contents. Measurements of permeability for unsaturated soils were performed with a newly developed apparatus, which modeled after Klute's apparatus(1965a). The apparatus was designed to measure volumetric water content and permeability by applying incremental suction pressure. Permeability and volumetric water content of unsaturated soils generally decreased as density of the soil increased. The relationship between volumetric water content and permeability was not related to the fine grained soils contents because the plots scattered widely. By comparing volumetric water content with permeability, empirical parameters A and B could be determined, which made to be possible to predict unsaturated permeability from soil-moisture characteristics.
 
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ºÒÆ÷È­Åä;Åõ¼ö°Ô¼ö;üÀûÇÔ¼öºñ;¼¼¸³ºÐ;¸ð°üÈí¼ö·Â;Permeability characteristics;Volumetric water contents;Unsaturated soils;Fine grained soils contents;Suction pressure;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.1, 2000³â, pp.133-142
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063559)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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