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Çѱ¹Áö¹Ý°øÇÐȸ / v.12, no.5, 1996³â, pp.127-136
EPSÀÇ °Åµ¿ ¿¹Ãø ¸ðµ¨¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸
( An Experimental Study on the Modelling for the Prediction of the Behaviour of EPS )
õº´½Ä;ÀÓÇØ½Ä; Á¤È¸¿ø, ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, ÇѾç´ëÇб³ ´ëÇпø;
 
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ÃÊ °æ·®ÀçÀÎ E.P.S(20~30kg/m3)¸¦ ¼ºÅäÀç·Î »ç¿ëÇÏ¿© ºÎÁ·ÇÑ ÁöÁö·Â°ú ħÇÏ¿¡ ´ëÇÑ ¾ÈÁ¤ ¼ºÀ» È®º¸ÇÏ´Â ¹æ¹ýÀÌ ÃÖ±Ù ¸¹ÀÌ »ç¿ëµÇ°í ÀÖ´Ù. ±¹³»¿¡¼­´Â 1993³â ÀÎõÀÇ ¿¬¾àÁö¹Ý»ó ±³´ë µÌä¿òÀç·Î ÀÌ °ø¹ýÀÌ Ã³À½ »ç¿ëµÈ ÀÌ·¡ Á¡Â÷ Ȱ¿ëÀÌ ´Ã¾î³ª°í ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. ±×·¯³ª ¾ÆÁ÷±îÁö EPS¸¦ ¼ºÅä Àç·á·Î »ç¿ëÇÑ Áö¹Ý¿¡¼­ EPSÀÇ °Åµ¿À» ¿¹ÃøÇϱâ À§ÇÑ ÇÕ¸®ÀûÀÎ ¼öÄ¡ÇØ¼® ¸ðµ¨ÀÌ Á¦½ÃµÇ¾î ÀÖÁö ¾Ê°í ÀÏÃà¾ÐÃà°­µµ ¹× Å©¸®ÇÁ½ÃÇè °á°ú¿¡ µû¸¥ ¼³°è°­µµ¸¸ÀÌ Á¦¾ÈµÇ¾î ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â ¼ºÅäÀç·á·Î »ç¿ëµÈ EPSÀÇ ¼öÄ¡ÇØ¼® ¸ðµ¨À» Á¦½ÃÇϱâ À§ÇÏ¿© ¼ºÅäÀç·Î »ç¿ëµÇ´Â ¿©·¯ Á¾·ù ¹ÐµµÀÇ EPS¿¡ ´ëÇØ ±¸¼Ó¾ÐÀ» º¯È­½ÃŰ¸é¼­ »ïÃà¾ÐÃà½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. »ïÃà¾ÐÃà½ÃÇè °á°ú¸¦ ºÐ¼®ÇÏ¿© EPSÀÇ Ãà¹æÇâ º¯Çü·ü-ÀÀ·Â °ü°è¿Í ÀÌÀÇ µµÇÔ¼ö ±×¸®°í Æ÷¾Æ¼Ûºñ¸¦ ¹Ðµµ¿Í ±¸¼Ó¾Ð¿¡ ÀÇÇÑ ÇÔ¼ö½ÄÀ¸·Î ³ªÅ¸³¾ ¼ö ÀÖ¾ú´Ù. ÀÌ °ü°è·ÎºÎÅÍ EPSÀÇ °Åµ¿À» ¿¹ÃøÇϱâ À§ÇÑ ºñ¼±Çü¸ðµ¨À» Á¦¾ÈÇÏ¿´´Ù.
Recently, EPS which has unit weight of only 20~30kg/m3, is used for acquiring the safety of settlement and bearing capacity, In Korea, EPS was first used in 1993 as backfill material for abutment that was constructed on soft ground in Inchon. Since then EPS has been used increasingly as backfill material. However, adequate modelling has not yet been proposed for the prediction of the behavior of EPS. Only it's design strength was proposed as the results of unconfined strength and creep test. Accordingly this paper executed triaxial compression test on EPS with various density and confining pressure. Through the analysis of test data the behavior of EPS for strainstress, tangential modulus and poisson's ratio can be expressed in functions with parameters of density and confining pressure of EPS. From these results, this paper proposed a nonliner model describing the behavior of EPS.
 
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EPS;Load Reducing;Numerical Modelling of EPS;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.12, no.5, 1996³â, pp.127-136
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920446888)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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