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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.8, 2011³â, pp.31-37
´ÙÁüµÈ ºÒÆ÷È­ ½ÇÆ®Áú ¸ð·¡ÀÇ Èí¼öÀÀ·Â°ú ÀÏÃà¾ÐÃà°­µµ
( Suction Stress and Unconfined Compressive Strength of Compacted Unsaturated Silty Sand )
¹Ú¼º¿Ï;±ÇÈ«±â; ´Ü±¹´ëÇб³ Åä¸ñȯ°æ°øÇаú;´Ü±¹´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â Á¤Àû ´ÙÁüµÈ ÀÚ¿¬ ¼ºÇØ ½ÇÆ®Áú ¸ð·¡ÀÇ ºÒÆ÷È­ Èí¼ö·ÂÀÇ ¿µÇâ°ú º¯ÇüƯ¼ºÀ» Æò°¡Çϱâ À§Çؼ­ ºÒÆ÷È­ ÀÏÃà¾ÐÃà½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. °ø½Ãü´Â ÃʱâÆ÷È­µµ¸¦ ´Ù¸£°Ô ÇÏ¿© Á¦À۵Ǿú°í °ø½ÃüÀÇ Ãʱâ Èí¼ö·Â ¹× ÃÖ´ëÀÏÃà¾ÐÃà°­µµ¿¡¼­ÀÇ Èí¼ö·Â ±×¸®°í Àü´Ü½ÃÀÇ Ã¼Àûº¯ÇüÀÌ ÃøÁ¤µÇ¾ú´Ù. ½ÃÇè°á°ú, ÃʱâÆ÷È­µµÀÇ Å©±â¿¡ µû¶ó Èí¼ö·Â, ÃÖ´ë ÀÏÃà ¾ÐÃà°­µµ ¹× üÀûº¯Çü °Åµ¿À» »ìÆìº¸°í Æò°¡ÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ, ºÒÆ÷È­»óÅ ½ÇÆ®Áú ¸ð·¡ÀÇ Àü´Ü°­µµ¿¡¼­ Èí¼ö·Â¿¡ ÀÇÇØ Áõ°¡ÇÏ´Â °Ñº¸±â Á¡Âø·ÂÀ» ³ªÅ¸³»´Â Èí¼öÀÀ·Â($P_s$À» ÃßÁ¤ÇÏ¿´´Ù.
In order to evaluate the effect of matric suction on the strength and deformation characteristics, the unsaturated unconfined compression test is performed for the statical1y compacted silty sand. Specimens used were made under conditions with various initial degrees of saturation. The initial matric suction, matric suction at the peak shear strength and the volumetric deformation during the shear process were measured. From these results, it was found that the initial degree of saturation exerts the influence on the behaviors of suction, peak shear strength and the volumetric deformation. Furthermore, the suction stress($P_s$) which means the apparent cohesion due to matric suction in the unsaturated shear strength could be derived.
 
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Compacted silty sand;Suction stress;Unconfined compression test;Unsaturated shear strength;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.8, 2011³â, pp.31-37
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201131263123825)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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