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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.10, 2006³â, pp.111-120
°³º°¿ä¼Ò¹ý¿¡ ÀÇÇÑ ¶ôÇÊÀç·áÀÇ ´ëÇü»ïÃà¾ÐÃà½ÃÇè ¸ðµ¨¸µ
( Modelling of Large Triaxial Test with Rockfill Materials by Distinct Element Method )
ÀüÁ¦¼º;±è±â¿µ;½Åµ¿ÈÆ; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;
 
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º» ¿¬±¸¿¡¼­´Â °³º°¿ä¼ÒÇØ¼® ÇÁ·Î±×·¥ PFC¸¦ ÀÌ¿ëÇÏ¿© ½Ç³» ´ëÇü»ïÃà¾ÐÃà½ÃÇè¿¡ ´ëÇÑ °Åµ¿¿¹Ãø ¹× ½Ç³»½ÃÇè °á°ú¿ÍÀÇ ºÐ¼®À» ¼öÇàÇÏ¿´´Ù. ´ï ÃàÁ¶¿ë ¶ôÇÊÀç·á(rockfill material)¿¡ ´ëÇÑ ½Ç³» ´ëÇü»ïÃà¾ÐÃà½ÃÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, PFC ÇØ¼®¿¡ À־´Â Ãʱ⠰£±Ø·üÀ» °í·ÁÇÑ °³º°¿ä¼Ò »ý¼º°ú ÆØÃ¢, clump logicÀ» ÀÌ¿ëÇÑ ´ë»óÀç·áÀÇ ÀÔµµºÐÆ÷ ¸ðµ¨¸µÀ» ¼öÇàÇÏ¿´´Ù. ƯÁ¤ ±¸¼Ó¾Ð Á¶°Ç¿¡ ´ëÇÑ ½Ç³»½ÃÇè °á°ú¸¦ ÀÌ¿ëÇÏ¿© °³º°¿ä¼ÒÇØ¼®½Ã ÇÊ¿äÇÑ ¹Ì½Ã ¹°¼ºÄ¡(micro Parameter)¸¦ »êÁ¤ÇÏ¿´À¸¸ç, À̸¦ ÀÌ¿ëÇÏ¿© ´Ù¾çÇÑ ÀÀ·ÂÁ¶°Ç¿¡ ´ëÇÑ °³º°¿ä¼ÒÇØ¼®À» ¼öÇàÇÏ¿´´Ù. º» ¿¬±¸°á°ú, °³º°¿ä¼Ò¹ýÀº Áö¹Ý°øÇÐÀû Ãø¸é¿¡¼­, Á¶¸³Àç·á¿¡ ´ëÇÑ ¹Ì½ÃÀû °Åµ¿(micro behavior) ¹× ÀüüÀû °Åµ¿(macro behavior)ÀÇ ¿¹Ãø»Ó ¾Æ´Ï¶ó, ¼öÄ¡½ÃÇè½Ç(numerical laboratory)·Î¼­ Ȱ¿ëµÉ ¼ö ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In this research, numerical simulations by PFC considering discrete element method are conducted to predict experimental results of large triaxial compression test with rockfill material for dam construction. For generation of compacted assembly with specific grain size distribution and initial material porosity, the clump logic method and expansion of generated particles are adapted. To predict stress-stain behavior of large triaxial test, discrete particle modelling is applied with micro parameters which are chosen by calibration process. It is expected that distinct particle modelling method could be used as a useful tool to investigate micro and macro behavior associated with geotechnical problems and develop a numerical laboratory.
 
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Clump logic;Distinct element method;Micro parameters;Numerical laboratory;PFC;Rockfill material;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.10, 2006³â, pp.111-120
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623521254)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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