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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.11, 2009³â, pp.5-15
°øÁøÁÖ/ºñµêÀü´Ü½ÃÇèÀ» ÀÌ¿ëÇÑ ³«µ¿°­¸ð·¡ÀÇ µ¿ÀûÀü´Üº¯ÇüƯ¼º
( Dynamic Shear Properties of Nak-Dong River Sand Determined by Resonant Column/Torsional Shear Test )
±èÁø¸¸;¹Ú¿äȯ;ÀÓ¼®µ¿; ºÎ»ê´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇкΠÅä¸ñ°øÇÐ;ºÎ»ê´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇкÎ;ºÎ»ê´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇкÎ;
 
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³«µ¿°­ µ¨Å¸Áö¿ª ÅðÀûÅäÀÇ µ¿Àûº¯ÇüƯ¼º¿¡ °üÇÑ µ¥ÀÌÅͺ£À̽º ±¸ÃàÀÇ ÀÏȯÀ¸·Î¼­ ³«µ¿°­ ¸ð·¡ÀÇ º¯ÇüƯ¼ºÀ» Á¶»çÇÏ¿´´Ù. ½ÃÇè½Ã·á´Â ³«µ¿°­ Áß·ù¿Í Çϱ¸¾ð Àαٿ¡¼­ äÃëÇÏ¿´À¸¸ç, ½ÃÆíÀº °ÇÁ¶³«»ç¹ý¿¡ ÀÇÇÏ¿© ¼ºÇüÇÏ¿´´Ù. ¼ºÇüµÈ ½ÃÇè½ÃÆíÀ¸·Î °øÁøÁÖ/ºñµêÀü´Ü½ÃÇèÀ» ¼öÇàÇÏ¿´°í, ½ÃÇè½Ã ´Ù¾çÇÑ ¿µÇâ¿ä¼Ò(±¸¼Ó¾Ð, »ó´ë¹Ðµµ, º¯Çü·üÅ©±â, ¹Ýº¹ÇÏÁßȽ¼ö)¸¦ Á¶»çÇÏ¿´´Ù. ½ÃÇè°á°ú´Â Ramberg-Osgood ¸ðµ¨°ú Modified Hyperbolic ¸ðµ¨À» Àû¿ëÇÏ¿© Á¤±ÔÈ­Àü´Ü°è¼ö °¨¼Ò°î¼±°ú °¨¼èºñ°î¼±À¸·Î ³ªÅ¸³»¾úÀ¸¸ç, ±âÁ¸¹®Çå¿¡¼­ Á¦½ÃÇÏ´Â °î¼±µé°ú ºñ±³ÇÑ °á°ú ¾à°£ÀÇ Â÷À̸¦ º¸¿´À¸³ª, Àü¹ÝÀûÀ¸·Î À¯»çÇÑ °æÇâÀ» º¸¿©ÁÖ¾ú´Ù. º» RC/TS ½ÇÇèÀ¸·ÎºÎÅÍÀÇ °á°ú´Â ÇâÈÄ ³«µ¿µ¨Å¸Áö¿ªÀÇ »çÁúÅäÁö¹ÝÀÇ µ¿ÀûÀÀ´ä °Åµ¿À» ºÐ¼®ÇÒ ¶§ ¸Å¿ì Áß¿äÇÑ ÀÚ·á·Î ¾²ÀÏ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
Dynamic shear properties of Nak-Dong river sand were investigated to build a soil property database for Nak-Dong delta region. Samples were taken from the estuary and the midstream of the river. Laboratory specimens were prepared by air pluviation method, and were tested by using RC/TS apparatus at various confining stresses, relative densities and numbers of cycles. Shear modulus reduction and damping curves were developed using Ramberg-Osgood and Modified Hyperbolic Models. The developed curves, compared to those reported by other investigators, show only a slight difference. The outcome of this RC/TS experiments can be very important resources when accessing the dynamic response of sandy soils in Nak-Dong delta region in the future.
 
Ű¿öµå
Damping curve;Dynamic deformation characteristics;Modulus reduction curve;Nak-Dong river sand;RC/TS test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.11, 2009³â, pp.5-15
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200908856855983)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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