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Çѱ¹Áö¹Ý°øÇÐȸ / v.13, no.3, 1997³â, pp.63-76

( Engineering Characteristics of Crushed Rockfill Material )
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ÆÄ¼âµÈ ¼®±«´ï Àç·áÀÇ °øÇÐÀû Ư¼ºÀ» Á¶»çÇϱâ À§ÇÏ¿© ´ëÇü »ïÃà½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÃÇè¿¡ »ç¿ëµÈ Àç·á´Â greywackeÀ̰í, ½Ã·á´Â °ñÀçÀÇ ÃÖ´ë Ä¡¼ö°¡ °¢°¢ 38.1mm, 25.4mm ¹× 19.1mmÀÌ¸ç ¼­·Î ÆòÇàÇÑ 3°³ÀÇ ÀÔµµºÐÆ÷°î¼±À» »ç¿ëÇÏ¿´´Ù. ½Ã·áÀÇ Å©±â´Â $phi300mm imes600mm$À̰í, ±¸¼ÓÀÀ·ÂÀº 5t/$m^2$¿¡¼­ 60t/$m^2$±îÁö º¯È­½ÃÄ×´Ù. ½ÃÇè°á°ú, ¼®ÇÇÀç·áÀÇ ÀÀ·Â-º¯ÇüÀ² °ü°è ¹× ³»ºÎ¸¶Âû°¢¿¡ ¹ÌÄ¡´Â °ñÀçÀÇ ÃÖ´ëÄ¡¼öÀÇ ¿µÇâÀº ¹«½ÃÇÒ ¼ö ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±¸¼ÓÀÀ·ÂÀÌ 5t/$m^2$¿¡¼­ 60t/$m^2$À¸·Î Áõ°¡µÉ ¶§, ³»ºÎ¸¶Âû°¢Àº $51.6^{circ}$¿¡¼­ºÎÅÍ $40.5^{circ}$±îÁö °¨¼Ò ÇÏ¿´´Ù. ¼®±«Àç·á¿¡ ´ëÇÑ »ïÃà½ÃÇè°á°ú·ÎºÎÅÍ ½Ö°î¼± ¸ðµ¨ÀÇ ¸Å°³ º¯¼ö¸¦ »êÁ¤ÇÏ¿©, ÀÌ °ªµéÀ» Duncanµî(1980)ÀÇ ÀÔ»óÀç·á(GW¹× GPÀç·á)¿¡ ´ëÇÑ Ãßõġ¿Í ºñ±³ÇÏ¿´´Ù. ¸Å°³º¯¼öÁß, ¼®±«Àç·áÀÇ ½ÃÇè°á°ú·ÎºÎÅÍ »êÁ¤µÈ no ¹× KÄ¡°¡ ƯÈ÷ ÀÔ»óÀç·á(GW¹× GPÀç·á)¿¡ ´ëÇÑ Ãßõġ¿Í ¸¹Àº Â÷À̸¦ º¸ÀÌ´Â °ÍÀ¸·Î ÆÇ¸íµÇ¾ú´Ù.
To investigate the engineering characteristics of crushed rockfill material, the large-scaled triaxial tests have been carried out, The rpckfill is made from the greywacke, and the 3 parallel gradations with different maximum particle size(dmu=38.1mm, 25.4mm and 19.1mm) were designed for the test. The dimension of the specimen is 300mm in diameter and 600mm in height, and the applied confining stress varied from 5t/$51.6^{circ}$ to 60t/$51.6^{circ}$. The test results show that the influence of the maximum particle size on the stress -strain r$51.6^{circ}; to; 40.5^{circ}$ when the confining stress increases from 5t/$51.6^{circ}$ to 60t/$51.6^{circ}$ The hyperbolic parameter values estimated from the test result for rockfill are much different from the recommended values by Duncan et. at(1980) for GW and GP material, especially in the $phi$ ad K-values.
 
Ű¿öµå
Rockfill;Large-scaled triaxial tests;Stress-Strain relationslips;Strength characteristics;Hyperbolic model;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.13, no.3, 1997³â, pp.63-76
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920447397)
¾ð¾î : Çѱ¹¾î
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