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Çѱ¹Áö¹Ý°øÇÐȸ / v.2, no.1, 1986³â, pp.55-66
¿¬¾àÁ¡ÅäÀÇ µ¿·ÂÇÐÀû Àü´Üź¼º°è¼ö ¹× °¨¼èºñ
( Dynamic Shear Modulus and Damping Ratio of Soft Clay )
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À¯È¿±¸¼ÓÃß·Â, ÃʱâÀü´ÜÀÀ·Â, ÀÀ·Âºñ ¹× ¹Ýº¹È¸¼öµîÀÇ ¿µÇâÀ» °í·ÁÇϸ鼭 ºñ¹è¼öÁ¶°ÇÇÏ¿¡ ÀÖ´Â ¿¬¾àÁ¡Åä½Ã·áÀÇ µ¿·ÂÇÐÀû Àü´Üź¼º°è¼ö ¹× °¨¼èºñÀÇ º¯È­Æ¯¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇÏ¿© ÀÏ·ÃÀÇ »ïÃà·Õ·û½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ±× °á°ú, ÃʱâÀü´ÜÀÀ·Â ¹× ±¸¼Ó¾Ð·ÂÀÌ µ¿·ÂÇÐÀû Å伺ġ¿¡ ¹ÌÄ¡´Â ¿µÇâÀº Å©Áö ¾Ê¾ÒÁö¸¸, Ãà¹æÇâ º¯ÇüÀÇ Áõ°¡¿¡ µû¶ó Àü´Üź¼º°è¼ö´Â °¨¼ÒÇÏ°í °¨¼èÇÏ´Â Áõ°¡ÇÏ´Â ¿µÇâÀ» ³ªÅ¸³½´Ù. ¶ÇÇÑ, Àü´Üź¼º °è¼ö´Â Marcuson et al(3)°ú Kokusho et al.(4)¿¡ ÀÇÇØ Á¦¾ÈµÈ °æÇè½ÄÀ¸·Î ¾ò¾îÁø ¹üÀ§³»¿¡ ºÐÆ÷µÇ¾ú°í, °¨¼èºñ´Â Kokusho et al.(4)°ú Ishihara et al.(9)¿¡ ÀÇÇØ ¾ò¾îÁø ¹üÀ§¿¡ ºÐÆ÷µÊÀ» º¸À̰í ÀÖ´Ù.
Considering the effects of confining pressure, initial shear stress, cyclic stress ratio and number of loading cycles, cyclic triaxial tests are carried out to clarify the soil dynamic properties such as shear modulus and value of material damping of clay under undrained cyclic loading conditions. The results show that no obvious dependency on initial shear stress and effective confining stress are recognized in the shear modulus and damping ratio plotted versus strain. However, the shear modulus decreases and the damping ratio increases with increasing axial strain. When compared with others, it is also revealed that the shear moduli are distributed within the range curves obtained using empirical equations derived by Marcuson et al. (3) and Kokusho et al. (4), and damping ratios are distributed between the curves obtained by Kokusho et al. (4) and Ishihara et al. (9).
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.2, no.1, 1986³â, pp.55-66
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198611920442615)
¾ð¾î : Çѱ¹¾î
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