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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.4, 2004³â, pp.57-63
³·Àº ±¸¼ÓÀÀ·Â ´Ü°è¿¡¼­ Áö¹ÝÀÇ Åº¼º°è¼ö¿¡ ´ëÇÑ ±¸¼ÓÀÀ·ÂÀÇ ¿µÇâ
( The Effect of Confining Pressure on Modulus of Soils at Low Confining Pressures )
±Ç±âö; µ¿ÀÇ´ëÇб³ Åä¸ñ°øÇаú;
 
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°ø¿ë»óÅ Æ÷Àå¿¡¼­ ³ë»óÅä ¹× º¸Á¶±âÃþ Àç·á°¡ °æÇèÇÏ´Â ±¸¼ÓÀÀ·Â ¹üÀ§´Â 150§æ À̳»ÀÌ´Ù. µû¶ó¼­ Æ÷Àå ½Ã½ºÅÛ ¼³°è ¹× ÇØ¼®¿¡¼­ ³·Àº ±¸¼ÓÀÀ·Â ´Ü°èÀÇ º¯ÇüƯ¼ºÀº ¸Å¿ì Áß¿äÇÑ ¹°¼ºÄ¡ÀÌ´Ù. ½ÇÁ¦ Æ÷Àå½Ã°ø ÇöÀå¿¡¼­ ³ë»óÅä ¹× º¸Á¶±âÃþ Àç·á¸¦ äÃëÇÏ¿´À¸¸ç, ³·Àº ±¸¼ÓÀÀ·Â ´Ü°è¿¡¼­ ź¼º°è¼ö¿¡ ´ëÇÑ ±¸¼ÓÀÀ·Â ¿µÇâ Æò°¡¸¦ À§ÇÏ¿© °øÁøÁÖ½ÃÇè(RC) ¹× ÀÚÀ¯´Ü°øÁøÁÖ½ÃÇè(FFRC)À» ¼öÇàÇÏ¿´´Ù. Èï¹Ì·Ó°Ô, ³·Àº ±¸¼ÓÀÀ·Â ´Ü°è¿¡¼­´Â ±¸¼ÓÀÀ·Â°ú ź¼º°è¼öÀÇ °ü°è°¡ ´ë¼ö°ø°£º¸´Ù´Â ¼±Çü°ø°£¿¡¼­ ´õ¿í ÀûÇÕÇÑ °ü°è¸¦ ³ªÅ¸³»¾ú´Ù. ÀÌ·¯ÇÑ °á°ú¸¦ ±Ù°Å·Î ³·Àº ±¸¼ÓÀÀ·Â´Ü°è¿¡¼­ ±¸¼ÓÀÀ·ÂÀÇ Åº¼º°è¼ö¿¡ ´ëÇÑ ¿µÇâÀ» Æò°¡ÇÏ´Â »õ·Î¿î ¸ðµ¨À» Á¦¾ÈÇÏ¿´´Ù.
The range of stresses experienced in subgrade soils and subbase materials in pavement under working stress conditions is below about 150§æ. Therefore, the deformational characteristics of soils at low confining pressures are important properties in the analysis and design of pavement system. Subgrade soils and subbase materials were collected from the actual pavement projects for testing. To evaluate the effect of confining pressure on modulus of those materials at low confining pressures, RC and FFRC tests were performed. Interestingly, the relationship between modulus of soils and confining pressure is more appropriate in linear space than in logarithm space at low confining pressure. Based on those results, new model fur evaluating the effects of confining pressure on modulus at low confining pressures was proposed.
 
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Modulus of soils;FFRC;Low confining pressure;Pavement;RC;Subbase materials;Subgrade soils;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.4, 2004³â, pp.57-63
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922383222)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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