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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.6, 2003³â, pp.7-14
±¼ÆÐ°¢ È¥ÇÕÅäÀÇ ºñ¹è¼ö Àü´Ü°­µµ Ư¼º
( The Undrained Shear Strength Characteristics of Mixed Soil with Oyster Shells )
¼Û¿µÁø;±è±â¿µ;¹®È«µæ; °æºÏ´ëÇб³ Åä¸ñ°øÇаú;°æºÏ´ëÇб³ Åä¸ñ°øÇаú;ÁøÁÖ»ê¾÷´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ±¼ÆÐ°¢ È¥ÇÕÅäÀÇ Àü´Ü°­µµ Ư¼ºÀ» ÆÄ¾ÇÇϰíÀÚ ÇØ¼ºÅä¿¡ ±¼ÆÐ°¢ È¥ÇÕÀ² 0%, 25% ±×¸®°í 50%·Î ´Þ¸® ÇÑ ÈÄ $K_o$ ºñ¹è¼ö »ïÃà¾ÐÃà ½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ¶ÇÇÑ °¢ È¥ÇÕºñ¿¡ µû¶ó À¯È¿ ¿¬Á÷¾ÐÀ» 200kPa, 300kPa ±×¸®°í 400kPa·Î Àû¿ëÇÏ¿´°í, À¯È¿ ¿¬Á÷¾Ð 300kPa¿¡ ´ëÇØ¼­ Àü´Ü¼Óµµ¸¦ ¼¼°¡Áö·Î ´Þ¸®ÇÏ¿© ±×¿¡ µû¸¥ È¥ÇÕÅäÀÇ Àü´Ü°­µµ Ư¼ºÀ» ¾Ë¾Æº¸¾Ò´Ù. ÀÏ·ÃÀÇ ½ÇÇè°á°ú·ÎºÎÅÍ ±¼ÆÐ°¢ È¥ÇÕºñ°¡ Áõ°¡ÇÒ¼ö·Ï ±¼ÆÐ°¢ ÀÔÀÚÀÇ ÆÄ¼â·Î ÀÎÇØ Àü´Ü°­µµ°¡ Áõ°¡ÇÔÀ» º¼ ¼ö ÀÖ¾úÀ¸¸ç, Àü´Ü¼Óµµ´Â ±¼ÆÐ°¢ È¥ÇÕÅäÀÇ Àü´Ü°­µµ¿¡ Å« ¿µÇâÀ» ¹ÌÄ¡Áö ¸øÇÔÀ» È®ÀÎÇÏ¿´´Ù. ±¼ÆÐ°¢ È¥ÇÕÅäÀÇ ½Ç³»½ÇÇè°ú Mayne, BishopÀÇ °æÇè½ÄÀ» Åä´ë·Î ºñ±³ ºÐ¼®ÇÑ °á°ú ºñ¹è¼ö Àü´Ü°­µµ´Â ½ÇÇè°ª°ú ºñ½ÁÇÑ °æÇâÀ» ³ªÅ¸³»°í ÀÖ´Ù. ±×·¯³ª °£±Ø¼ö¾Ð°è¼ö ¿¹ÃøÀº È¥ÇÕºñ 0%¿¡¼­ °æÇè½ÄÀÌ ½ÇÇè°ª°ú º¸´Ù °ú´ë Æò°¡¸¦ º¸À̰í ÀÖ´Ù.
In this study, undrained shear test was performed$K_o$ consolidation in order to study the shear strength characteristics of oysters-marine clay mixtures for three mixed ratios(0%, 25% and 50%). And, in order to study shear strength characteristics of oysters-marine clay mixtures, three different effective vertical stresses(200, 300 and 400kPa) were applied for the $K_o$ consolidation tests. In addition three different axial strain rates(0.005%/min, 0.05%/min, 0.5%/min) were applied for the case of effective vertical stress, 300kPa. According to experimental results, the more mixed ratios were increased, the more deviator stress was increased by crushing effect of oysters particles. especially, when effective vertical stress is 300kPa and mixed ratio increase from 25% to 50%, Test shows the increase of shear strength. But axial strain rate was not effect on the undrained shear strength. In the comparison and analysis that are based on the values of tests on the oysters-marine clay mixtures and the Mayne & Bishop's empiric formula, the undrained shear strength ratio shows a similar pattern of the tests. But for the prediction of the coefficient of the pore water pressure, the value of empiric formula shows more overestimated than the values of the tests at 0%, mixture ratio.
 
Ű¿öµå
Ko consolidation test;Mixed soil;Oyster shells;Undrained shear strength;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.6, 2003³â, pp.7-14
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922147800)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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