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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.4, 2003³â, pp.43-53
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( Sample Disturbance due to Sampling Techniques and Comparison of Consolidation Parameters Between Testing Methods on Pusan Clays )
°ûÁ¤¹Î;Á¤¼º±³;¹é½ÂÈÆ;ÀÌ¿µ³²;Á¶±â¿µ; µ¿¾Æ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;µ¿¾Æ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¢ß°¡¾ßENG;Çö´ë°Ç¼³¢ß °Ç¼³±â¼ú¿¬±¸¼Ò;ºÎ»ê½Ã µµ½Ã°³¹ß°ø»ç;
 
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¿¬¾àÁ¡Åä¿¡ ´ëÇÑ ½Ç³»½ÃÇèÀ¸·ÎºÎÅÍ ¾çÈ£ÇÑ ÅäÁúÁ¤¼ö¸¦ ±¸Çϱâ À§Çؼ­´Â ½Ã·á±³¶õÀÇ ¿µÇâÀ» ÃÖ¼ÒÈ­ÇÏ¿©¾ß¸¸ ÇÑ´Ù. º» ¿¬±¸¿¡¼­´Â ½Ã·áäÃë±â¼ú ¹× ½Ã·áäÃë°ü¿¡ µû¸¥ ½Ã·á±³¶õÀÇ ¿µÇâÀ» Á¶»çÇϱâ À§ÇÑ ¸ñÀûÀ¸·Î ³«µ¿°­ Çϱ¸À¯¿ª¿¡ ºÐÆ÷Çϰí ÀÖ´Â ¿¬¾àÁ¡¼ºÅ並 ´ë»óÀ¸·Î ÇѤýÀÏ °øµ¿¿¬±¸¸¦ ½Ç½ÃÇÏ¿´´Ù. ¾ç±¹ÀÇ ½Ã·áäÃë±â¼ú¿¡ ÀÇÇÏ¿© äÃëµÈ ½Ã·á¿¡ ´ëÇÏ¿© ÀÏÃà¾ÐÃà½ÃÇè°ú ¾Ð¹Ð½ÃÇèÀ» ½Ç½ÃÇÏ¿© ÅäÁúÁ¤¼ö ¹× ½Ã·á±³¶õµµ¸¦ ºñ±³ÇÏ¿´´Ù. °á°úÀûÀ¸·Î, Çѱ¹¿¡¼­ »ç¿ëµÇ°í ÀÖ´Â ¼ö¾Ð½Ä ÇǽºÅæ »ùÇ÷¯¸¦ »ç¿ëÇÏ´õ¶óµµ ½Ã·áäÃë Àü¿¡ ÀϺ»¿¡¼­ ½Ç½ÃÇϰí ÀÖ´Â ¹æ¹ý´ë·Î ½½¶óÀÓÀÇ Á¦°ÅÀÛ¾÷À» ¸é¹ÐÈ÷ ¼öÇàÇÒ °æ¿ì¿¡ ½Ã·áÀÇ Ç°ÁúÀÌ ¸í¹éÇÏ°Ô °³¼±µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ±×¸®°í 0.02%/minÀÇ ¼Óµµ·Î ¼öÇàµÈ ÀÏÁ¤º¯Çü·ü(CRS) ¾Ð¹Ð½ÃÇèÀº Ç¥ÁؾйнÃÇè¿¡ ºñÇÏ¿© ½ÃÇè¹æ¹ýÀÇ Â÷ÀÌ ¶§¹®¿¡ ¾Ð¹ÐÁ¤¼öÀÇ Áõ´ë ¹× ³·Àº ±³¶õµµ¸¦ ³ªÅ¸³»¾ú´Ù.
To get improved soil parameters in the laboratory tests, the effects of sample disturbance should be excluded as much as possible. A collaborative research between Dong-A University and PHRI (Japan) was conducted to investigate the effects of sample disturbance due to sampling techniques and samplers on Pusan clays. The results of unconfined compression and consolidation tests performed on the clay samples taken by them have been compared in terms of soil parameters and sample disturbance. As the result of the study, it was found that when the Korean sampler was used with a different technique of cleaning the borehole bottom and removing slime before inserting and penetrating the sampler tube, similar to the one commonly used in Japanese practice, the quality of samples could be greatly improved. Furthermore, the CRS test with the rate of 0.02%/min yielded larger values of consolidation parameters and better degree of sample disturbance than those of oedometer test, due to the difference in testing method.
 
Ű¿öµå
Laboratory test;Pusan clay;Sample disturbance;Sampling techniques;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.4, 2003³â, pp.43-53
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921886432)
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