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Çѱ¹µµ·ÎÇÐȸ / v.9, no.4, 2007³â, pp.55-63
½ÃÆí ¼ºÇü±â¹ý¿¡ µû¸¥ ±¹³» ´ÙÁü ³ë»óÅäÀÇ º¯ÇüƯ¼º
( Deformational Characteristics of Compacted Subgrade Soils in Korea with Specimen Construction Methods )
±Ç±âö;ȲâÀÏ; µ¿ÀÇ´ëÇб³ Åä¸ñ°øÇаú;ÈïÇѰǼ³(ÁÖ);
 
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Deformational characteristics of subgrade soils are important properties in the mechanistic analysis and design of pavement system. In this study, to evaluate the effect of specimen construction methods on deformational characteristics of subgrade soils in Korea, resonant column tests were performed for specimens constructed by various methods. Specimen construction method affected to the modulus value but the variation in the normalized modulus reduction curve was almost identical. The effects of specimen construction method on modulus are decreased with increasing confining pressure. The average maximum variation in the modulus value with different specimen construction methods was estimated as 16.8%. The differences in the modulus value of the specimens with same water content and dry density conditions that made by gyratory compaction and impact compaction were very small within 5.2%. The impact compaction method was proposed as a specimen construction method for determining the design input parameter testing considering that impact compaction method is much simpler and require less expensive specimen construction equipment and setup than gyratory compaction method.
 
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³ë»óÅä;º¯ÇüƯ¼º;½ÃÆí¼ºÇü±â¹ý;°øÁøÁÖ½ÃÇè;´ÙÁü;subgrade soils;deformational characteristics;specimen construction methods;resonant column;compaction;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.9, no.4, 2007³â, pp.55-63
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414147836)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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