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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.8, 2004³â, pp.159-166
°­¿ì½Ã Á¡ÅäÇÔÀ¯·®¿¡ µû¸¥ È­°­Ç³È­ÅäÀÇ ºÒÆ÷È­ ħÅõ Ư¼º
( Effect of Rainfall-Induced Infiltration on Unsaturated Weathered Soils with Varying Clay Contents )
À¯³²µ¿;Á¤»ó¼¶;±èÀçÈ«;¹Ú¼º¿Ï; (ÁÖ)µµÈ­Á¾ÇÕ±â¼ú°ø»ç, Áö¹Ý°øÇкÎ;¿¬¼¼´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¹Ú»ç°úÁ¤, Åä¸ñ°øÇаú;´Ü±¹´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ºÒÆ÷È­ Áö¹ÝÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇϰí, °­¿ì½Ã ºÒÆ÷È­ »ç¸éÀÇ Æ÷È­±íÀÌ¿¡ µû¸¥ ¾ÈÁ¤¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇØ ±¹³» Áö¹ÝÀÇ ÀüÇüÀûÀÎ È­°­Ç³È­Åä(SW)¿¡ Á¡Åä(CH) ÇÔÀ¯·® 0¡­30%À» º¯È­½ÃÄÑ °¡¸ç ÇÔ¼öƯ¼º°î¼± »êÁ¤ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ¶ÇÇÑ °­¿ì·Î ÀÎÇØ Áõ°¡µÇ´Â Æ÷È­±íÀÌ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â Åõ¼ö°è¼ö ¹× suctionÀ» ±¸Çϱâ À§ÇØ ´ÙÁüµµ¿¡ µû¸¥ °­µµÁ¤¼ö º¯È­¸¦ ÃøÁ¤ÇÏ¿´´Ù. ħÅõ·Î ÀÎÇØ ¹ß»ýÇÏ´Â Áö¹Ý³»ÀÇ suction º¯È­¸¦ Á¡ÅäÇÔÀ¯·®¿¡ µû¶ó ¸ðÇü ½ÃÇè°ú ¼öÄ¡ÇØ¼®À» »ç¿ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ƯÈ÷ ºÒÆ÷È­ Áö¹Ý¿¡¼­ Æ÷È­Áö¹ÝÀ¸·Î ¹Ù²î´Â °úÁ¤¿¡ ÀÜ·ùÇÏ´Â wetting front suctionÀº Á¡ÅäÇÔÀ¯·®°ú Áö¹ÝÀÇ ´ÙÁüµµ¿¡ µû¶ó ¹Î°¨ÇÏ°Ô º¯È­ÇÏ¿´´Ù. °­¿ì½Ã ħÅõ¼öÀÇ °Åµ¿À» ÆÄ¾ÇÇϱâ À§ÇØ »ó¿ëÇÁ·Î±×·¥ÀÎ SEEP/W¸¦ ÅëÇØ ħÅõÇØ¼®À» ¼öÇàÇÏ¿´°í, ħÅõÇØ¼® °á°ú¸¦ ¿¬µ¿½ÃÄÑ Æ÷È­±íÀÌ¿¡ µû¸¥ »ç¸éÀÇ ¾ÈÁ¤¼ºÀ» SLOPE/W ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© Æ÷È­±íÀÌ ¹× Á¡ÅäÇÔÀ¯·®¿¡ µû¶ó ºñ±³¤ýºÐ¼®ÇÏ¿´´Ù. ÇØ¼®°á°ú¸¦ ÅëÇØ wetting front suctionÀº ÃÊ±â Æ÷È­±íÀÌ¿¡ ¿µÇâÀ» ¹ÌÄ¡¸ç ¾ÈÀüÀ²ÀÌ º¯ÇÏ´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù.
In this study, experiments on the SWCC were performed in order to find out the characteristics of unsaturated soil and to analyze the stability of unsaturated weathered slopes with rainfall-induced wetting. Several soil types classified by mixture portion of clay (CH) in the weathered soil (SW) were used in experimental tests. To achieve the SWCC, the filter paper method was used on SW with varying clay contents. A tensiometer test was used for measuring wetting front suction of the soils in a laboratory with varying relative densities. Based on the experimental results, it is shown that the wetting front suction increases as clay contest of mixture soil increases : in particular, the wetting front suction increases sharply as the clay contents increase. It is also found that wetting front suction affects the initial wetting band depth and stability of the slope.
 
Ű¿öµå
Clay contents;Filter paper;SWCC;Tensiometer;Unsaturated;Wetting band depth;Wetting front suction;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.8, 2004³â, pp.159-166
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411923039731)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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