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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.6, 2003³â, pp.379-385
¿¬¾àÁö¹Ý º¸°­¼ºÅä¿¡¼­ ¼¶À¯º¸°­Àç ¼Ò¿äÀÎÀå°­µµÀÇ °áÁ¤
( The Determination of Required Tensile Strength of Geosynthetic Reinforcements for Embankment on Soft Ground )
À̱¤¿­;ȲÀçÈ«;±¸Å°ï; µ¿¼­´ëÇб³ °Ç¼³°øÇкÎ;µ¿¼­´ëÇб³ Åä¸ñ°øÇаú;µ¿¼­´ëÇб³ Åä¸ñ°øÇаú;
 
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±âÁ¸ÀÇ ¼¶À¯º¸°­¼ºÅäÁ¦Ã¼ÀÇ ¼³°è¿¡¼­ º¸°­ÀçÀÇ º¯ÇüÀ» °í·ÁÇÏÁö ¾Ê°í ¿¬Á÷ÀÀ·ÂÀ» º¸°­ÀçÀÇ ÀÎÀå°­µµ·Î »ç¿ëÇÔÀ¸·Î½á, È뱸Á¶¹°ÀÇ ÆÄ±«ÀÀ·Â¿¡ ´ëÀÀÇÏ´Â º¸°­ÀçÀÇ ÇѰèÀÀ·Â»êÁ¤°ú ±×¿¡ µû¸¥ º¸°­ÀçÀÇ ±Ô°Ý°áÁ¤ÀÌ ºÒ°¡´ÉÇß´Ù. º¸°­Àç¿¡ ÀÇÇØ º¸°­µÈ ¼ºÅäÁ¦Ã¼ÀÇ ÆÄ±«¸é¿¡¼­ º¸°­Àç¿Í ÈëÀÇ °Åµ¿Àº ÃʱâÀÀ·Â´Ü°è¿¡¼­´Â ÀÏü·Î¼­ °Åµ¿ÇÏÁö¸¸ ÀÀ·ÂÀÇ Áõ°¡¿¡ µû¶ó º¯Çü·®ÀÇ Â÷À̰¡ Áõ°¡ÇÑ´Ù. ÀÌ·¯ÇÑ ¹®Á¦´Â È뱸Á¶¹°ÀÇ º¸°­Àç¼³°è¿¡¼­ Áß¿äÇÑ ¿ä¼Ò·Î¼­ º¸°­È¿°ú¿¡ Å« ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ¿¬¾àÁö¹ÝÀ§¿¡ PET Mat·Î º¸°­ÇÑ ¼ºÅäÁ¦Ã¼ÀÇ º¸°­Àç ¼³°è ½Ã ÆÄ±«¸é»óÀÇ º¸°­Àç ¼³Ä¡À§Ä¡¿¡¼­ Èë°ú º¸°­ÀçÀÇ º¯Çü·®À» °í·ÁÇÑ ¼³°è¹æ¹ýÀ» Á¦½ÃÇÏ¿´´Ù. ¿¬±¸°á°ú¿¡ ÀÇÇϸé, Çã¿ë¾ÈÀüÀ²À» È®º¸ÇÏ´Â ¹üÀ§³»¿¡¼­ ¿¹»óÆÄ±«¸é»óÀÇ º¸°­Àç ¼³Ä¡À§Ä¡¿¡¼­ÀÇ º¸°­ÀçÀÇ ÀÎÀå°­µµ´Â ÈëÀÇ ÀÀ·Â ÀÌ»óÀ̾î¾ß Çϸç, ÈëÀÇ º¯Çü¸µ${Delta S}$°ú º¸°­ÀçÀÇ º¯Çü·®${Delta G}$ÀÌ ÀÏü·Î °Åµ¿ÇÏ´Â º¸°­ÀçÀÇ ¼Ò¿äÀÎÀå°­µµ¸¦ º¸°­ÀçÀÇ ¼³°èÀÎÀå°­µµ·Î¼­ °áÁ¤ÇÏ´Â °ÍÀÌ ÇÕ¸®ÀûÀÌ°í °æÁ¦ÀûÀÎ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù.
In the existing method to design geosynthetic reinforced embankment, the required strength of reinforcements is determined by vertical stress only rather than strain. This strength is not in accord with tensile strength that behaves as reinforcement in earth structures. The reinforcement and adjacent soil on the failure plan behave in one unit at the initial stress phase but they make a gap in strain as stress increases. This issue may cause a big impact as a critical factor on geosynthetic reinforcement design in earth structures. The quantitative analysis on strain behavior was performed with a PET Mat reinforced embankment on soft ground. From this study, several outstanding discussions are found that tensile strength of reinforcement governs the failure of embankment when the soil stress is greater than failure stress. Also the optimum required tensile strength of geosynthetic reinforcement(Tos) should be determined by stress, displacement, displacement gap and safety factor of soil-PET Mat at the location of PET Mat.
 
Ű¿öµå
Embankment;Geosynthetics;Reinforcement;Soft ground Stress-strain;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.6, 2003³â, pp.379-385
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922148159)
¾ð¾î : Çѱ¹¾î
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