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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.4, 2003³â, pp.265-275
Åä¸ñ¼¶À¯ÀÇ µ¿Àû °æ°è¸é ¸¶ÂûƯ¼º Æò°¡
( Estimation of Dynamic Interface Friction Properties of Geosynthetics )
±èµ¿Áø;¼­¹Î¿ì;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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º» ¿¬±¸¿¡¼­´Â ¸Å¸³Áö¿¡¼­ »ç¿ëµÇ°í ÀÖ´Â Åä¸ñ¼¶À¯ (Áö¿À¸âºê·¹ÀÎ, Áö¿ÀÅØ½ºÅ¸ÀÏ, Åä¸ñ¼¶À¯ Á¡Åä Â÷¼öÀç) »çÀÌÀÇ µ¿Àû Á¢ÃË ¸¶Âû Ư¼ºÀ» Æò°¡Çϱâ À§Çؼ­ Áøµ¿´ë ½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. µ¿Àû ÇÏÁßÇÏ¿¡¼­ Áøµ¿´ë¿Í ÇϺο¡ Åä¸ñ¼¶À¯°¡ ºÎÂøµÈ »óÀÚÀÇ °¡¼Óµµ, ÀÌµé »çÀÌÀÇ »ó´ëÀû º¯À§¸¦ ÃøÁ¤ÇÏ¿´À¸¸ç, ¿¬Á÷ÀÀ·Â, Áøµ¿ Á֯ļö, °ÇÁ¶/¼öħ »óŰ¡ Á¢Ã˸éÀÇ µ¿Àû °Åµ¿ Ư¼º¿¡ ¹ÌÄ¡´Â ¿µÇâµµ ¾Ë¾Æº¸¾Ò´Ù. ½ÇÇè °á°ú¸¦ ÅëÇØ µ¿ÀûÇÏÁßÀÌ °¨¼è¾øÀÌ Åä¸ñ¼¶À¯ »çÀ̸¦ Åë°úÇÏ´Â ÇÑ°è °¡¼Óµµ°¡ Á¸ÀçÇÔÀ» È®ÀÎÇÏ¿´À¸¸ç, À̸¦ ÀÌ¿ëÇÏ¿© Åä¸ñ¼¶À¯ »çÀÌÀÇ µ¿Àû Á¢ÃË ¸¶Âû°¢À» »êÁ¤ÇÒ ¼ö ÀÖ¾ú´Ù. Á¢Ã˸鿡¼­ÀÇ »ó´ë º¯À§´Â Á¢Ã˸éÀÇ ÇüÅÂ¿Í °ÇÁ¶/¼öħ »óÅ¿¡ µû¶ó ´Ù¸£°Ô ÃøÁ¤µÇ¾ú´Ù. °¢ Åä¸ñ¼¶À¯ Á¢Ã˸鿡 ´ëÇÑ ÃÖ´ë »ó´ëº¯À§´Â ¹«Â÷¿øÀ¸·Î Á¤±ÔÈ­½ÃÄÑ, °¡¼Óµµ¿Í ÃÖ´ë ¹Ì²ô·¯Áü »çÀÌÀÇ °ü°è½ÄÀ» ±¸ÇÏ¿´´Ù. ÀÌ ½ÄÀ» ÀÌ¿ëÇϸé ÁÖ¾îÁø °¡¼Óµµ¿Í Á֯ļö¿¡¼­, Åä¸ñ¼¶À¯ »çÀ̸¦ µû¶ó ¹ß»ýµÇ´Â ÃÖ´ë ¹Ì²ô·¯ÁüÀÇ Å©±â¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Ù.
In this study, shaking table tests were conducted to estimate dynamic interface properties between geosynthetics such as geomembrane, geotextile and geosynthetic clay liner. Accelerations of both shaking table and upper box, and relative displacements between geosynthetics under dynamic loading were measured. Also, the influence of normal stress, frequency of excitation and dry/wet conditions were investigated through the analyses of test results. from the test results, it was found that there is a limited acceleration below which dynamic farce can be transmitted between geosynthetics without the loss of horizontal acceleration. Dynamic interface friction angle between geosynthetics could be calculated through the limited acceleration. Relative displacements induced along geosynthetic interfaces under dynamic loading were not consistent depending on the type of interface and test conditions. The maximum slip displacements between geosynthetics are normalized and normalized slip equations were developed for each interface. By using the normalized slip equation, maximum slip displacements for the geosynthetic interface could be predicted for the given base acceleration and frequency of excitation.
 
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Dynamic properties;Geosynthetic;Interface;Landfill;Normalized slip;Shaking table;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.4, 2003³â, pp.265-275
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921886644)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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