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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.137-146
Åä¸ñ¼¶À¯ Á¡Åä Â÷¼öÀç(GCL)¿Í Áö¿À¸âºê·¹ÀÎ(GM)ÀÇ Á¢ÃË Àü´Ü°­µµ Æò°¡
( An Evaluation of Interface Shear Strength between Geosynthetic Clay Liner and Geomembrane )
¼­¹Î¿ì;±èµ¿Áø;¹ÚÁعü;¹ÚÀÎÁØ; ¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;ÇѼ­´ëÇб³ Åä¸ñ°øÇаú;
 
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Æó±â¹° ¸Å¸³Áö¿¡´Â ħÃâ¼ö°¡ ¿ÜºÎ·Î À¯ÃâµÇ´Â °ÍÀ» ¹æÁöÇϱâ À§ÇØ Áö¿À¸âºê·¹ÀÎ, Á¡ÅäÂ÷¼öÀç ¹× Åä¸ñ¼¶À¯ Á¡Åä Â÷¼öÀç(GCL) µîÀÌ ³Î¸® »ç¿ëµÈ´Ù. ¸Å¸³ÁöÀÇ »ç¸é¿¡ ¼³Ä¡µÇ´Â GCL°ú Áö¿À¸âºê·¹ÀÎ »çÀÌÀÇ Á¢ÃË(interface) Àü´Ü°­µµ´Â »ç¸é¿¡ ¼³Ä¡µÇ´Â Â÷¼ö ¹× ÃÖÁ¾ µ¤°³½Ã¼³ÀÇ ¾ÈÀüÇÑ ¼³°è¸¦ À§ÇØ ²À ÇÊ¿äÇÑ ¹°¼ºÄ¡·Î¼­, º» ¿¬±¸¿¡¼­´Â ´ëÇü Á÷Á¢Àü´Ü ½ÃÇè±â¸¦ »ç¿ëÇÏ¿© µÎ Á¾·ùÀÇ GCL°ú Áö¿À¸âºê·¹ÀÎ »çÀÌÀÇ Á¢ÃË Àü´Ü°­µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. º» ³í¹®¿¡¼­´Â Mohr-Coulomb ÆÄ±« Æ÷¶ô¼±À» ÀÌ¿ëÇÏ¿© Àü´Ü°­µµ¸¦ Æò°¡ÇÏ¿´À¸¸ç, ¿¬Á÷ÇÏÁß, ¼öÈ­ ¹× °ÇÁ¶»óÅÂ, ¼öÈ­Á¶°Ç µîÀÌ Àü´Ü°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸¾Ò´Ù. ºÐ¼® °á°ú ¿¬Á÷ÇÏÁßÀ̳ª ¼öÈ­ »óŰ¡ Àü´Ü °Åµ¿ ¹× Àü´Ü °­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀº ÇÏÁßÀÇ Å©±â¿Í Åä¸ñ¼¶À¯ÀÇ Á¾·ù¿¡ µû¶ó ´Ù¸£°Ô ³ªÅ¸³µ´Ù. 6kPaÀÇ ÇÏÁßÀ» °¡ÇÑ »óÅ¿¡¼­ ¼öÈ­¸¦ ½ÃŲ ÈÄ ½Ç½ÃÇÑ Àü´Ü ½ÃÇè °á°ú´Â ±âÁ¸ÀÇ ¹®Çå¿¡ Á¦½ÃµÈ °á°ú¿Íµµ Àß ÀÏÄ¡ÇÏ´Â ¸ð½ÀÀ» º¸¿´´Ù. ¸¶Áö¸·À¸·Î ¿¬Á÷ÇÏÁß ¹× ¼öÈ­Á¶°Ç¿¡ µû¸¥ ¸¶Âû°¢À» Á¦½ÃÇÏ¿© À¯»çÇÑ Åä¸ñ¼¶À¯°¡ Àû¿ëµÇ´Â ÇöÀåÀÇ ¼³°è½Ã Âü°íÀÚ·á·Î Ȱ¿ëÇÒ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù.
Geomembrane, compacted clay liner, and geosynthetic clay liner (GCL) are widely used to prevent leachate from leaking to adjacent geo-environment at a municipal solid waste (MSW) landfill. Interface shear strength between GCL and geomembrane installed at a landfill side slope is important properties for the safe design of side liner or final cover systems. The interface shear strength between two geosynthetics was estimated by a large direct shear test in this study. The shear strength was evaluated by the Mohr-Coulomb failure criterion. The effects of normal stress, hydration or dry condition, and a hydration method were investigated. The test results show that the interface shear strength and shear behavior varied depending up on the level of normal stress, the type of geosynthetic combinations, and a hydration method. When GCLs were sheared after being hydrated under 6kPa loading, the results were consistent with those published by other researchers. Summaries of friction angles, normal stress and hydration condition is presented. These friction angles could be used as a reference value at a site where similar geosynthetics are installed.
 
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Geomembrane;Geosynthetic clay liner;Hydration;Interface shear strength;Normal stress;Solid waste landfill;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.137-146
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921342015)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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