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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.5, 2009³â, pp.47-52
¸ð·¡ ġȯ¹ýÀ» ÀÌ¿ëÇÑ ÈëÀÇ ¹Ðµµ ½ÃÇè¿¡ °üÇÑ Æò°¡
( Evaluation of Sand Replacement Method for Determination of Soil Density )
¹Ú¼º½Ä;ÃÖÇö¼®; ¿ø±¤´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æµµ½Ã°øÇкÎ;¿ø±¤´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æµµ½Ã°øÇкÎ;
 
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¸ð·¡ ġȯ¹ýÀº ÇöÀå¿¡¼­ ´ÙÁüµÈ ÈëÀÇ ¹Ðµµ¸¦ ±¸Çϱâ À§ÇÏ¿© »ç¿ëµÇ´Â º¸ÆíÀûÀÎ ¹æ¹ýÀ¸·Î °ËÁõ¿ë ¿ë±â¿Í ÇöÀå ½ÃÇè ±¸¸ÛÀÇ Å©±â ¶Ç´Â üÀûÀÌ ¼­·Î ºñ½ÁÇÏ¿© ¸ð·¡°¡ ½×ÀÌ´Â °úÁ¤ÀÌ ºñ½ÁÇÏ´Ù´Â °¡Á¤¿¡ ±âÃÊÇϰí ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ¸ð·¡ ġȯ¹ý¿¡¼­ ¸ð·¡°¡ ÇöÀå ½ÃÇè ±¸¸Û¿¡ ä¿öÁö´Â °úÁ¤À» ½Ç³»¿¡¼­ ÀçÇöÇÏ¿© ¸ð·¡°¡ ½×ÀÌ´Â °úÁ¤ÀÌ °è»êµÇ´Â ¹Ðµµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ¿´´Ù. ´Ù¾çÇÑ ¸ð¾çÀ» °¡Áø ½ÃÇè ±¸¸ÛÀ» Á¦ÀÛÇÏ¿© ½ÃÇè ±¸¸ÛÀÇ Ã¼ÀûÀ» ¸ð·¡ ġȯ¹ýÀ¸·Î ±¸ÇÏ¿´À¸¸ç, ¸ð·¡ Á¾·ù¿¡ µû¸¥ ¿µÇâÀ» ¾Ë¾Æº¸±â À§ÇÏ¿© ÀÔÀÚ Å©±â°¡ ´Ù¸¥ ¼¼ Á¾·ùÀÇ ¸ð·¡¸¦ »ç¿ëÇÏ¿© ¸ð·¡ ġȯ¹ýÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÇÁ¦ ¹Ðµµ¿Í ¸ð·¡ ġȯ¹ýÀ» ÀÌ¿ëÇÏ¿© °è»êµÈ ¹Ðµµ »çÀÌÀÇ ¿ÀÂ÷´Â »ç¿ëÇÑ ¸ð·¡ÀÇ Á¾·ù¿¡ µû¶ó »ó´çÇÑ Â÷À̸¦ ³ªÅ¸³»¾ú´Ù. ÇÏÁö¸¸ ½ÃÇè ±¸¸ÛÀÇ ¹Ù´Ú Çüųª »ç¿ëÇÑ ¸ð·¡ÀÇ Á¾·ù¿¡ °ü°è¾øÀÌ ½ÃÇè ±¸¸ÛÀÇ ±íÀ̰¡ ±í¾îÁú¼ö·Ï °è»êµÇ´Â ¹ÐµµÀÇ ¿ÀÂ÷´Â °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´´Ù. ÀÌ·¯ÇÑ ¿¬±¸ °á°ú¸¦ ¹ÙÅÁÀ¸·Î ¸ð·¡ ġȯ¹ý¿¡ ÀÇÇÑ ÈëÀÇ ¹Ðµµ ½ÃÇè ¹æ¹ýÀ» ÀçÆò°¡ÇÏ°í °³Á¤ÇÒ ¼ö ÀÖ´Â ±âÃÊ ÀڷḦ ¸¶·ÃÇÏ¿´´Ù.
A sand replacement method is commonly used to determine the density of the compacted soils. The density of the test or compacted soil is computed on the assumption that the calibration container has approximately the same size or volume and allows the sand to deposit approximately in the same way as a test hole in the field. The sand filling process is simulated in the laboratory and its effect on the determination of density is investigated. Artificially-made holes with different heights and bottom shapes are prepared to simulate various shapes of the test hole in the field. Three sands with different gradations are used in the testing to examine how sand grain size influences the determination of density in the field. As the height of a test hole increases, the error between known density and calculated density decreases, regardless of the types of test hole and sand used. The results of this study can be used to reevaluate and revise the test method for soil density by the sand replacement method.
 
Ű¿öµå
Density;Sand replacement method;Test hole;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.5, 2009³â, pp.47-52
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200921140046734)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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