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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.4, 2003³â, pp.83-93
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¾Ð¹ÐÀÀ·Âºñ¿¡ µû¸¥ ³«µ¿°¸ð·¡ÀÇ ºñ¹è¼öÀü´Ü°ÅÅë Æ¯¼º
( Variation of Undrained Shear Behavior with Consolidation Stress Ratio of Nakdong River Sand ) |
| ±è¿µ¼ö;Á¤¼º°ü;¼ÛÁØÇõ;Á¤µ¿±æ; °æºÏ´ëÇб³ Åä¸ñ°øÇаú;°æºÏ´ëÇб³ Á¶°æÇаú;¢ß¼®Å¾¿£Áö´Ï¾î¸µ ±â¼ú¿¬±¸¼Ò;¢ß¼¿µ±â¼ú´Ü µµ½ÃöµµÆÀ;
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| º» ¿¬±¸¿¡¼´Â ³«µ¿° ÇÏ·ù À»¼÷µµ¿¡ ºÐÆ÷ÇÏ´Â 0.558%ÀÇ ¼¼¸³ºÐÀ» ÇÔÀ¯ÇÑ ÀÚ¿¬ »çÁúÅä Áö¹Ý¿¡ ´ëÇÏ¿© ´À½¼, Áß°£, ±×¸®°í Á¶¹ÐÇÑ Áö¹Ý »óŸ¦ ÀçÇöÇÏ¿© ÃʱâÁ¤ÀûÀü´ÜÀÀ·ÂÀÇ ¿µÇâÀ» Á¤Àû ¹× µ¿Àû ½ÃÇèÀ» ÅëÇØ ÀÀ·Â°æ·Î¿Í °úÀ×°£±Ø¼ö¾Ð ¼Ò»ê ¹× ÀÜ·ùº¯Çü °Åµ¿À» ±Ô¸íÇϰí, Bolton À̷п¡ ÀǰÅÇÑ ÆÄ±«½Ã ÃÖ´ë À¯È¿¸¶Âû°¢À» »ó´ë¹Ðµµ¿¡ ÀÇÇÑ ¿µÇâ°ú ±¸¼Ó¾ÐÀÇ ¿µÇâÀ» °í·ÁÇÏ¿© Á¦½ÃÇÏ¿´´Ù. ÆÄ±«¼±°ú »óÀüÀÌÁ¡ÀÇ °Å¸®´Â ÃʱâÀü´ÜÀÀ·ÂÀÌ Áõ°¡ÇÒ¼ö·Ï °¡±î¿öÁö°í, ´À½¼ÇÑ ¸ð·¡ÀÇ °æ¿ì ±× ¿µÇâÀÌ Ä¿¼ Á¶¹ÐÇÑ ¸ð·¡ÀÇ ÀÀ·Â°æ·Î·Î Á¢±ÙÇÏ´Â °æÇâÀ» º¸ÀδÙ. ¾Ð¹ÐÀÀ·Âºñ Á¶°ÇÀÌ 1.4¿¡¼ 1.8·Î º¯ÇÔ¿¡ µû¶ó, »ó´ë¹ÐµµÀÇ Áõ°¡¿Í ÇÔ²² º¸´Ù Å« ¾×»óÈ ÀúÇ×°µµ¸¦ º¸À̰í Á¶¹ÐÇÑ »ó´ë¹Ðµµ Á¶°Ç¿¡¼´Â À¯»çÇÑ CSR°ªÀ» º¸¿´´Ù. |
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| This research, in order to study the effects of initial shear stress of anisotropically consolidated sand that has 0.558% fines, performed several undrained static and dynamic triaxial test. To simulate the real field conditions, loose and dense samples were prepared. Besides, the cyclic shear strength of Nakdong River sand under various combinations of initial static shear stress, stress path, pore water pressure and residual strength relationship was studied. By using Bolton's theory, peak internal friction angle at failure which has considerable effects on the relative density and mean effective stress was determined. In p'- q diagram, the phase transformation line moves closer to the failure line as the specimen's initial anistropical consolidation stress increases. Loose sands were more affected than dense sands. The increase of consolidation stress ratio from 1.4 to 1.8 had an effect on liquefaction resistance strength resulting from the increase of relativity density, and showed similar CSR values in dense specimen condition. |
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| Ű¿öµå |
| Dynamic test;Initial static stress;Liquefactiot Sand; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.4, 2003³â, pp.83-93
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921886471)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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