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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.4, 2011³â, pp.51-65
Æò¸éº¯Çü·ü ½ÃÇè¿¡¼­ À̹ÌÁö ÇØ¼®À» ÅëÇÑ »çÁúÅäÀÇ Àü´Ü¸é Ư¼º Æò°¡
( Assessment of Shear Band Characteristics in Granular Soils Using Digital Image Analysis Technique for Plane Strain Tests )
ÀåÀÇ·æ;Á¤¿µÈÆ;±èÁØ¿µ;Á¤Ãæ±â; ¼­¿ï´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;°æÈñ´ëÇб³ Åä¸ñ°øÇаú;¼­¿ï´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;¼­¿ï´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;
 
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Àü´Ü¸éÀÇ Çü¼º°ú Àü´Ü¸é¿¡ ÁýÁßµÇ¾î ±¹ºÎÀûÀ¸·Î ¹ß»ýÇÏ´Â º¯ÇüÀº Áö¹Ý ±¸Á¶¹°ÀÇ °Åµ¿°ú ¾ÈÁ¤¼º¿¡ Å©°Ô ¿µÇâÀ» ¹ÌÄ¡±â ¶§¹®¿¡ Àü´Ü¸éÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇÏ´Â °ÍÀº ¸Å¿ì Áß¿äÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â Àü´Ü¸éÀÇ Çü¼º ¹× ¹ß´Þ ÆÐÅÏ µîÀ» ½ÇÇèÀûÀ¸·Î ±Ô¸íÇϱâ À§ÇÏ¿© ÀÔµµºÐÆ÷°¡ ´Ù¸¥ ¼¼ °¡Áö ½Ã·á¿¡ ´ëÇÏ¿© ¹Ðµµ¿Í ±¸¼Ó¾Ð Á¶°ÇÀ» º¯È­½ÃÄѰ¡¸é¼­ Æò¸éº¯Çü·ü ½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. Àü´Ü Áß¿¡ À̹ÌÁö¸¦ ÃÔ¿µÇϰí, Àü´Ü Ãʱ⿡¼­ºÎÅÍ ÇÑ°è »óűîÁö ÇÏÁß ´Ü°è¿¡ µû¶ó¼­ À̹ÌÁö ÇØ¼®À» ¼öÇàÇÏ¿© ½Ã·á ³»ºÎÀÇ º¯ÇüÀ» ÃøÁ¤ÇÏ¿´´Ù. À̸¦ ¹ÙÅÁÀ¸·Î Àü´Ü¸éÀÌ ¹ß»ýÇϱ⠽ÃÀÛÇÏ´Â ´Ü°è¸¦ È®ÀÎÇÏ¿´°í, ÀÌ ´Ü°èºÎÅÍ ÀÀ·Â ¿¬È­ ´Ü°è¸¦ Áö³ª ÇÑ°è »óÅ¿¡ À̸¦ ¶§±îÁöÀÇ Àü´Ü¸éÀÇ Æ¯¼ºÀ» ±â¿ï±â¿Í µÎ²²ÀÇ °üÁ¡¿¡¼­ Æò°¡ÇÏ¿´´Ù. ¶ÇÇÑ, µÎ²²¸¦ ÇÕ¸®ÀûÀ¸·Î »êÁ¤Çϱâ À§ÇÏ¿© Åë°èÀûÀÎ ÇØ¼® ÀýÂ÷µµ ¸¶·ÃÇÏ¿´´Ù.
Shear banding, the localization of deformation into thin zones, has a quite practical relevance, as stability and deformation characteristics of earth structures are controlled by the soil behavior within the shear band. In this study, for understanding occurrence and developed pattern of shear band, plane strain compression tests were performed on three soils with different particle-size distribution under various conditions. Digital images were captured during the experiments; then, deformation of a specimen was evaluated by digital image analysis technique. The characteristics of a shear band were evaluated from the state shortly after post-peak occurrence to critical state. Additionally, the statistical procedure was developed to determine the reasonable thickness of a shear band.
 
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Digital image analysis;Granular soil;Plane strain test;Shear band;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.4, 2011³â, pp.51-65
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201118860406771)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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