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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.11, 2007³â, pp.59-66
ÀÚ°¥ÀÌ ÇÔÀ¯µÈ È­°­Ç³È­ÅäÀÇ ´ÙÁüƯ¼º¿¡ °üÇÑ ¿¬±¸
( An Experimental Study on Compaction Characteristics of Gravel-mixed Decomposed Granite Soil )
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ÀÚ°¥È¥ÇÕÀç·áÀÇ ¿ªÇÐÆ¯¼º¿¡ ¹ÌÄ¡´Â ÀÚ°¥È¥ÇÕÀ²ÀÇ ¿µÇâÀ» ºÐ¼®Çϱâ À§ÇÏ¿© È­°­Ç³È­Å並 ÀÌ¿ëÇÑ ´ëÇü ÀÏÂ÷¿ø¾ÐÃà½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­´Â ÀϺ» ¾ß¸¶±¸Ä¡Çö(ߣϢúã) ½Ã¸ð³ë¼¼Å°½Ã(ù»Î¼ã¼)¿¡¼­ äÃëÇÑ È­°­Ç³È­Å並 ÀÌ¿ëÇØ ÀÔµµ¸¦ Á¶ÀýÇÑ ÈÄ ÀÏÁ¤ÇÑ ´ÙÁü¿¡³ÊÁö·Î ´ÙÁüÇÑ °ø½Ãü¸¦ ½ÃÇè¿¡ »ç¿ëÇÏ¿´´Ù. ½ÃÇè°á°ú, µ¿ÀÏÇÑ ÇÔ¼öºñ¿¡¼­ µ¿ÀÏÇÑ ´ÙÁü¿¡³ÊÁö·Î ´ÙÁüÀ» ½Ç½ÃÇÏ¿©µµ ÀÚ°¥È¥ÇÕÀ²¿¡ µû¶ó ¼­·Î ´Ù¸¥ °ÇÁ¶¹Ðµµ¸¦ º¸¿´°í, À̷κÎÅÍ ÃÖ´ë°ÇÁ¶¹Ðµµ¸¦ ³ªÅ¸³»´Â ÀÚ°¥È¥ÇÕÀ²ÀÌ Á¸ÀçÇÏ´Â °Í°ú ÀÌ ÀÚ°¥È¥ÇÕÀ²¿¡¼­ ÃÖ¼ÒÀÇ ¾ÐÃàÁö¼ö¸¦ º¸ÀÌ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ º» ¿¬±¸¿¡¼­´Â ÀÌ»óÈ¥ÇÕüÀÌ·Ð(two-phase mixture theory)À» ÀÌ¿ëÇØ ÀÚ°¥È¥ÇÕÀ²ÀÇ ¿µÇâÀ» Á¤·®ÀûÀ¸·Î Æò°¡ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´°í, Á¦¾ÈÇÑ ¹æ¹ýÀ» ÅëÇØ »êÁ¤ÇÑ Ãʱâ°ÇÁ¶¹Ðµµ¿Í Àç·áÁ¤¼ö´Â ½Ç³»½ÃÇèÀ¸·ÎºÎÅÍ ¾òÀº ½ÇÃø°ªÀ» Á¤È®È÷ ÃßÁ¤ÇÏ´Â °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù.
In order to clarify the influence of gravel content on the mechanical properties of gravel-mixed decompose granite soils, large-scale one-dimensional compression tests were performed. The sample used in the study was a decomposed granite soil from Shimonoseki in Yamaguchi prefecture in Japan. After adjusting the grain size of the said soils, the specimen compacted with a certain level of compaction energy was put to the test. Based on the results obtained, when gravel-mixed decomposed granite soil was compacted at the same energy level, there existed the specific gravel content at which dry density was maximum and which also produced the minimum compression index. Furthermore, from these results, an expression based on a two-phase mixture theory was proposed to quantitatively evaluate the effects of gravel content and initial dry density and the material parameters calculated through the proposed method proved to exactly estimate the actual measuring value.
 
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Compression index;Decomposed granite soil;Dry density;Gravel content;Two phase mixture theory;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.11, 2007³â, pp.59-66
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414119123)
¾ð¾î : Çѱ¹¾î
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