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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.9, 2005³â, pp.53-64
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( Strength and Stiffness of Silty Sands with Different Overconsolidation Ratios and Water Contents )
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Áö¹Ý¼³°è¿¡ ÀÖ¾î Áö¹Ý°Åµ¿Àº ÀϹÝÀûÀ¸·Î ´Ü¼øÈ­µÈ ¼±Çüź¼ºÀ̳ª ¿ÏÀü¼Ò¼ºÀ¸·Î °£ÁֵǾî Àû¿ëµÇ°í ÀÖÀ¸³ª, ºñ¼±Çü ÀÀ·Â-º¯Çü·ü °Åµ¿, ÀÀ·ÂÀÌ·Â ¹× ÇÔ¼öºñ µîÀÇ ÇöÀå Áö¹ÝÁ¶°Ç ¶ÇÇÑ Á¤¹ÐÇÑ Áö¹Ý¼³°è¸¦ À§Çؼ­´Â ÀûÀýÈ÷ ¹Ý¿µµÇ¾î¾ß ÇÑ´Ù. º» ¿¬±¸¿¡¼­´Â »ïÃà¾ÐÃà½ÃÇè°ú °øÁøÁÖ½ÃÇèÀ» Æ÷ÇÔÇÑ ÀÏ·ÃÀÇ ½Ç³»½ÃÇèÀ» ÅëÇÏ¿© ½ÇÆ®ÇÔÀ¯·®, »ó´ë¹Ðµµ, ÀÀ·Â»óÅÂµî ´Ù¾çÇÑ Áö¹ÝÁ¶°Ç°ú °ú¾Ð¹Ðºñ ¹× ÇÔ¼öºñÀÇ º¯È­¿Í °°Àº ÇöÀå Áö¹ÝÁ¶°ÇÀ» °í·ÁÇÏ¿© »çÁúÅäÀÇ °­µµ ¹× °­¼ºµµ Ư¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú ÃÖ´ëÀü´Ü°­µµ ¹× ÃʱâÀü´Üź¼º°è¼ö¿¡ ´ëÇÑ °ú¾Ð¹ÐÀÇ ¿µÇâÀº ¹Ì¼ÒÇÏ°Ô ³ªÅ¸³µÀ¸³ª, Ãʱ⠹̼Һ¯Çü·ü ÀÌÈĺÎÅÍ ÆÄ±«±îÁöÀÇ ºñ¼±Çü ź¼º±¸°£¿¡¼­´Â °ú¾Ð¹ÐÀÇ ¿µÇâÀÌ ¹«½ÃÇÒ ¼ö ¾ø´Â ¿µÇâÀÎÀÚÀÓÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. ÇÔ¼öºñÀÇ °æ¿ì ±¸¼Ó¾Ð°ú »ó´ë¹Ðµµ°¡ ³·Àº °æ¿ì ÇÔ¼öºñ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ÃʱâÀü´Üź¼º°è¼ö´Â ¼¼¸³ºÐ Áõ°¡¿Í ÇÔ²² °¨¼ÒÇÏ¿´À¸¸ç, ±¸¼Ó¾ÐÀÌ Áõ°¡ÇÒ¼ö·Ï ÇÔ¼öºñÀÇ ¿µÇâÀº °¨¼ÒÇÏ¿´´Ù.
For geotechnical design in practice, soils are, in general, assumed to behave as a linear elastic or perfect plastic material. More realistic geotechnical design, however, should take into account various factors that affect soil behavior in the field, such as non-linearity of stress-strain response, stress history, and water content. In this study, a series of laboratory tests including triaxial and resonant column tests were peformed with sands of various silt contents, relative densities, stress states, OCR and water contents. This aims at investigating effects of various factors that affect strength and stiffness of sands. From the results in this study, it is found that the effect of OCR is significant for the intermediate stress-strain range from the initial to failure, while it may be ignored for the initial stiffness and peak strength. For the effect of water content, it is observed that the initial elastic modulus decreases with increasing water content at lower confining stress and relative density At higher confining stresses, the effect of water content Is found to become small.
 
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Initial shear modulus;Over-consolidation ratio;Resonant column tests;Shear strength;Triaxial tests;Water content;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.9, 2005³â, pp.53-64
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200508824125522)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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