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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.2, 2003³â, pp.279-289
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( Assessments of Creep Properties of Strip Type fiber Reinforcement ) |
| ÀüÇÑ¿ë;À¯ÁßÁ¶;±èÈ«ÅÃ;±è°æ¸ð;±è¿µÀ±; Àü³²´ëÇб³ ÀÀ¿ëÈÇаøÇкÎ;º¸°±â¼ú(ÁÖ) ±â¼ú¿¬±¸¼Ò;È«ÀÍ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;º¸°±â¼ú(ÁÖ) ±â¼ú¿¬±¸¼Ò;º¸°±â¼ú(ÁÖ) ±â¼ú¿¬±¸¼Ò;
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| ±¹³»¿¡ º¸°Åä ¿Ëº®ÀÌ µµÀÔµÈÁö 20¿© ³âÀÌ ´Ù µÇ¾î°¡°í, ¸¹Àº ±¸Á¶¹°µéÀÌ ½Ã°øµÇ¾ú´Ù. ƯÈ÷, ÄÜÅ©¸®Æ® ÆÐ³Î½Ä Àü¸éü¿Í ¼¶À¯º¸°À縦 Àû¿ëÇÏ´Â ½Ã½ºÅÛÀº ±¹³»¿¡ °¡Àå ³Î¸® ¾Ë·ÁÁø °ø¹ýÀÌ´Ù. ÀÌ °ø¹ýÀÇ ¼¶À¯º¸°Àç´Â °í°µµ Æú¸®¿¡½ºÅ׸£ ¼¶À¯¿Í LDPE ÇǺ¹ÃþÀ» °®´Â ±¸Á¶¸¦ °¡Áö°í ÀÖÀ¸¸ç, ¼¶À¯º¸°À縦 ÀÌ¿ëÇÑ ¼³°è¿¡¼´Â ¸î°¡Áö ÇÕ¸®ÀûÀÌÁö ¸øÇÑ ºÎºÐÀÌ Á¸ÀçÇØ ¿Ô´Ù. ¼³°èÀÎÀÚÀÇ °áÁ¤ÀÌ ¼±ÇàµÈ ¿Ü±¹µ¥ÀÌÅ͸¦ ±âÁØÀ¸·Î ÇÏ¿© °£Á¢ÀûÀÎ ¹æ¹ý¿¡ ÀÇÇØ ÀÌ·ç¾îÁ³À¸¸ç º¸°ÀçÀÇ Àå±âÅ©¸®ÇÁ °Åµ¿¿¡ ´ëÇØ¼µµ ¸¶Âù°¡Áö·Î ÀοëµÈ ÀڷḦ ÀÌ¿ëÇÏ¿© ¿Ô´Ù. µû¶ó¼ º» ¿¬±¸¿¡¼´Â ½Ç³»½ÃÇèÀ» ÅëÇÏ¿© Á÷Á¢ÀûÀ¸·Î ¼¶À¯º¸°ÀçÀÇ ¼³°èÀÎÀÚ¸¦ µµÃâÇϰíÀÚ ÇÏ¿´À¸¸ç, ±× °á°ú, ¼³°è¿¬Çѵ¿¾È ¿¹»óµÇ´Â Å©¸®ÇÁ Çã¿ë°µµ´Â ÃÖ´ëÆÄ´Ü°µµÀÇ ¾à 60%¿´À¸¸ç Å©¸®ÇÁ °¨¼Ò°è¼ö´Â 1.67·Î ³ªÅ¸³µ´Ù. |
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| Geosynthetic reinforced earth wall was introduced about 20 years ago and many structures have been constructed. Especially, segmental concrete panel facing and friction tie system are the most popular system in Korea, and this friction tie was composed of high tenacity PET filament and LDPE(Low Density Polyethylene) sheath. Due to the lack of direct-test results, design coefficients of friction tie (creep reduction factor) had been determined by quoting the previous and the foreign reference data. This is an unreasonable fact for the use of friction ties. In this study, the creep tests were performed to evaluate the creep behavior of friction tie, and the reduction factor of creep was calculated for the correct design of geosynthetic reinforced earth retaining walls. From the test results, finally it was found that the allowable creep strength of friction tie is 60% of Tult during service life, and creep reduction factor is 1.67 for each grade of friction ties. |
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| Ű¿öµå |
| Creep;Friction tie;Geosynthetic Reduction factor;Reinforced earth;SIM; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.2, 2003³â, pp.279-289
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921640928)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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