|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.3, 1999³â, pp.71-81
|
( Undrained Behavior of Clay-Sand Mixtures under Triaxial Loading ) |
| ;; ;;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸¿¡¼´Â ¸ð·¡-º¥Å䳪ÀÌÆ® È¥ÇÕÅ並 ´ë»óÀ¸·Î È¥ÇÕÅäÀÇ ºñÀ² ¹× ÀÀ·ÂÀ̷¿¡ µû¶ó ºñ¹è¼ö»óÅ¿¡¼ »ïÃà½ÇÇèÀ» ¼öÇàÇÏ¿´À¸¸ç ±× °á°ú °ú¾Ð¹Ð»óÅ¿¡¼ ¹ß»ýÇÏ´Â ¼Ò¼ºº¯ÇüÀ» Æ÷ÇÔÇÏ´Â ±¸¼º¸ðµ¨À» Àû¿ëÇÏ¿© È¥ÇÕÅäÀÇ Åº¼Ò¼º°Åµ¿À» ¿¹ÃøÇÏ¿´´Ù. ºñ¹è¼öÀü´Ü½ÃÇèÀº º¥Å䳪ÀÌÆ®ÀÇ È¥ÇÕºñ¸¦ 10, 15, 20%·Î º¯È½ÃŰ¸ç ¼ºÇüÇÑ ½Ã·á¸¦ 400kPa±îÁö µî¹æ¾Ð¹Ð ½ÃŲ ÈÄ À¯È¿±¸¼Ó¾Ð·ÂÀ» °¨½ÃÄÑ, ¾ÐÃà½ÃÇèÀº °ú¾Ð¹Ðºñ 1, 2, 4, 12¿¡ ´ëÇÏ¿©, ÀÎÀå½ÃÇèÀº °ú¾Ð¹Ðºñ 1. 4, 12¿¡ ´ëÇÏ¿© ¼öÇàÇÏ¿´´Ù. ½ÃÇèºÐ¼®°á°ú p'-qÆò¸é»ó¿¡¼ º¥Å䳪ÀÌÆ®ÀÇ È¥ÇÕºñ°¡ 15%ÀÌÇÏÀÎ °æ¿ì´Â ¸ð·¡¿Í ½ÇÆ®¿¡¼ ³ªÅ¸³ª´Â »óź¯Çü¼±ÀÌ ³ªÅ¸³µÀ¸³ª È¥ÇÕºñ°¡ 20%ÀÎ °æ¿ì´Â »óź¯Çü¼±ÀÌ ¶Ñ·ÇÇÏÁö ¾Ê¾ÒÀ» »Ó¸¸ ¾Æ´Ï¶ó üÀûÆØÃ¢ °æÇâÀ» °ÅÀÇ º¸ÀÌÁö ¾Ê¾Ò´Ù. µû¶ó¼ »çÁúÅäÀÇ °Åµ¿¿¡¼ Á¡ÅäÀÇ °Åµ¿À¸·ÎÀÇ ÀüÀ̸¦ º¸ÀÌ´Â Á¡ÅäÀÇ È¥ÇÕºñ´Â ´ë·« 20%Á¤µµ ÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. Á¦¾ÈÇÑ ±¸¼º¸ðµ¨Àº Á¤±Ô¾Ð¹Ð»óÅÂÀÇ ½Ã·á¿¡ ´ëÇØ¼´Â µî¹æ°æÈ ±¸¼º°ü°è½ÄÀ» Àû¿ëÇÏ¿´À¸¸ç °ú¾Ð¹Ð»óÅÂÀÇ ½Ã·á¿¡ ´ëÇØ¼´Â ±âÁظé°ú Ç׺¹¸éÀ» µ¿½Ã¿¡ °¡Á¤ÇØ Ç׺¹¸é ³»ºÎ¿¡¼ÀÇ ¼Ò¼ºº¯ÇüÀ» °í·ÁÇØ ÁÖ´Â ºñµî¹æ°æÈ ±¸¼º°ü°è½ÄÀ» Àû¿ëÇÏ¿´´Ù. º» ¿¬±¸ °á°ú Á¦¾ÈÇÑ ±¸¼º°ü°è½ÄÀº Á¤±Ô¾Ð¹Ð»óÅ ¹× °ú¾Ð¹Ð»óÅÂÀÇ È¥ÇÕÅä °Åµ¿À» ºñ±³Àû ÀûÀýÈ÷ ¿¹ÃøÇÒ ¼ö ÀÖ¾ú´Ù. |
|
| A study on the undrained behavior of isotropically consolidated clay-sand mixtures was carried out using the automated triaxial testing apparatus. Overconsolidated ratio, effective mean pressure and clay content( up to 20% bentonite) were the factors varied in the experimental investigation. Undrained behavior(strength and pore water pressure generation during shear in triaxial loading) depends upon overconsolidation ratio, confining pressure and clay content. Significant changes in undrained compression characteristics occurred at around 20% of clay contents in the sand. The test results were analyzed and their behaviors were interpreted within the framework of plasticity constitutive model for clay-sand mixtures. Possible physical bases for the proposed forms are discussed. Validation of the applied model using the laboratory results is also given. |
| |
| Ű¿öµå |
| Undrained behavior;Clay-sand mixtures;Triaxial testing;Overconsolidated ratio;Clay content;Constitutive model; |
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.3, 1999³â, pp.71-81
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749199)
¾ð¾î : ¿µ¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|