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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.12, 2010³â, pp.5-17
Á¶¸³Àç·á µ¿Àû¹°¼º »êÁ¤À» À§ÇÑ ´ëÇü»ïÃà¾ÐÃà½ÃÇèÀåºñ ±¸Ãà ¹× °ËÁõ
( Development and Verification of Large Triaxial Testing System for Dynamic Properties of Granular Materials )
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Á¶¸³Àç·á´Â öµµ, µµ·Î, ´ï µîÀÇ ´ëÇü Áö¹Ý±¸Á¶¹°ÀÇ Áß¿äÇÑ ¼ºÅäÀç·á·Î Ȱ¿ëµÇ°í ÀÖ´Ù. µû¶ó¼­ ÀÌ·¯ÇÑ Á¶¸³Àç·á¿¡ ´ëÇÑ Á¤È®ÇÑ ¹°¼º»êÁ¤Àº ÇÕ¸®ÀûÀÎ ¼³°è¿Í ½Ã°øÀ» À§ÇØ ÇʼöÀûÀÌ´Ù. ÇÏÁö¸¸ ´ëÀÔ°æÀÇ Á¶¸³Àç·á¸¦ ½ÇÇèÇϱâ À§ÇÑ Àåºñ°¡ ºÎÁ·ÇÏ¿© ÀÌ¿¡ ´ëÇÑ ¿¬±¸°¡ ¸Å¿ì Á¦ÇÑÀûÀ̾ú´Ù. ÀÌ¿¡ º» ¿¬±¸¿¡¼­´Â Á÷°æ 500mm, 300mm, 150mm µîÀÇ °ø½Ãü¿¡ ´ëÇÑ ½ÇÇèÀÌ ±â´ÉÇÑ ´ëÇü»ïÃà¾ÐÃà½ÃÇèÀåºñ¸¦ ±¸ÃàÇÏ¿´´Ù. º» Àåºñ¿¡¼­´Â ·Îµå¼¿À» »ïÃ༿ ¾È¿¡ ¼³Ä¡Çϰí, ¹Ì¼Òº¯Çü·ü ¼öÁØ¿¡¼­ÀÇ Á¦¾î¿Í º¯À§ÃøÁ¤ÀÇ Á¤È®µµ¸¦ ³ôÀ̱â À§ÇØ ½ÃÆí Áß°£ ¿µ¿ªÀÇ º¯ÇüÀ» ÃøÁ¤ÇÏ¿´´Ù. º» ÀåºñÀÇ µ¿Àû¹°¼º½ÇÇè °ËÁõÀ» À§ÇØ °°Àº °­¼ºÀ¸·Î Á÷°æ 300mm¿Í 50mmÀÇ ¿ì·¹Åº 5½ÖÀ» Á¦ÀÛÇÏ¿´´Ù. ´ëÇü»ïÃà¾ÐÃà½ÃÇèÀåºñ¸¦ ÀÌ¿ëÇØ¼­´Â Á÷°æ 300mmÀÇ ´ëÇü ¿ì·¹Åº ½ÃÆí¿¡ ´ëÇÑ ½ÇÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, ¼ÒÇü(Á÷°æ 50mm) ¿ì·¹Åº ½ÃÆí¿¡ ´ëÇÑ RC/TS, Ãæ°Ý¹ÝÇâ±â¹ý½ÃÇè µîÀ» ¼öÇàÇÏ¿´´Ù. ½ÃÇè °á°ú¿¡¼­ º» ÀåºñÀÇ ÇÕ¸®Àû ½ÃÇè °á°ú¸¦ È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
Coarse granular material is used as important fill material in most of large embankments such as railway, road, dam and so on. Therefore, the accurate design parameters of the coarse granular material are necessarily required in design and construction. The behavior of the coarse granular material was not well understood because of the lack of large testing equipment capable of coarse granular material. A large triaxial testing system was developed in this research, capable of large specimens of 500 mm, 300 mm and 150 mm in diameter. In the new large triaxial testing system, the load cell is installed inside the triaxial cell and axial displacement is measured locally on a specimen in order to improve control and measurement in small strain level. Urethane specimens of 300 mm and 50 mm in diameter were prepared. The large triaxial tests were performed on the 300 mm diameter urethane specimens while RC/TS and impact echo tests on the 50 mm diameter urethane specimens to verify this testing system. In this verification test results, we could ascertain the reasonable test results of the KRRI large triaxial testing system.
 
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Coarse granular material;Dynamic property;Large triaxial test;Verification of equipment;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.12, 2010³â, pp.5-17
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201014435572027)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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