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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.1, 2011³â, pp.41-52
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´ÙÁü dzÈÅäÀÇ $K_0$ ¾ÐÃà »ïÃà½ÃÇè¿¡¼ ³ªÅ¸³ ÆÄ±«ÀÌÀü Èí¼öÀÀ·Â Ư¼º°î¼±
( Suction Stress Characteristic Curve before Failure in the $K_0$ Consolidated Triaxial Tests for the Compacted Residual Soil ) |
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| dzÈÅäÀÇ ´ÙÁü¼ºÇü ½Ã·á¿¡ ´ëÇÑ »ïÃà½ÃÇèÀÇ $K_0$ ¾Ð¹Ð °á°ú¸¦ ¹ÙÅÁÀ¸·Î ºÒÆ÷ÈÅä¿¡ ´ëÇÑ À¯È¿ÀÀ·Â °¡¼³À» °ËÁõÇÏ¿´´Ù. Èí¼öÀÀ·Â Ư¼º°î¼±Àº ÇÔ¼öƯ¼º¿¡ °üÇÑ ºÒÆ÷ÈÅä °Åµ¿À» ±â¼úÇϸç, Àü´Ü°µµ³ª ÇÔ¼öƯ¼º°î¼±À¸·ÎºÎÅÍ ±¸ÇÒ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â K0 ¾Ð¹Ð °æ·Îµµ Èí¼öÀÀ·Â Ư¼º°î¼±À» Á¤ÀÇÇÒ ¼ö ÀÖÀ½À» ¹àÇû´Ù. ±×¸®°í Èí¼öÀÀ·Â¿¡ ±Ù°ÅÇÏ¿© À¯È¿ÀÀ·ÂÀ» Á¤ÀÇÇÒ ¼ö ÀÖ¾ú´Ù. ´Ù¾çÇÑ ¸ð°üÈí¼ö·Â ÇÏ¿¡¼ $K_0$ °æ·Î´Â À¯È¿ÀÀ·Â¿¡ ÀÇÇÏ¿© À¯ÀÏÇÑ Á÷¼±À¸·Î ±â¼úµÉ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ÃøÁ¤µÈ $K_0$ °ªÀº À¯È¿ÀÀ·Â¿¡ ÀÇÇÏ¿© ÀÓÀÇÀÇ ¸ð°üÈí¼ö·Â¿¡ ´ëÇÏ¿© ÀÏÁ¤ÇÑ °ªÀ¸·Î ºÐ¼®µÇ¾ú´Ù. $K_0$ ¾Ð¹Ð°æ·Î·ÎºÎÅÍ ±¸ÇÑ Èí¼öÀÀ·Â Ư¼º°î¼±Àº ÆÄ±«±ÔÁØÀ¸·ÎºÎÅÍ ±¸ÇÑ °Í°ú ÀÏÄ¡ÇÑ´Ù. ƯÈ÷ ÇÔ¼öƯ¼º°î¼±À¸·ÎºÎÅÍ ±¸ÇÑ Èí¼öÀÀ·Â Ư¼º°î¼±ÀÌ $K_0$ ¾Ð¹Ð °æ·Î ¹× ÆÄ±«½Ã ÀÀ·Â¿¡¼ ³ªÅ¸³ª´Â À¯È¿ÀÀ·Â °Åµ¿À» ¸ðµÎ ÀϰüµÇ°Ô ±â¼úÇÒ ¼ö ÀÖ¾ú´Ù. Èí¼öÀÀ·Â Ư¼º°î¼±¿¡ ±â¹ÝÇÑ À¯È¿ÀÀ·ÂÀº ¾Ð¹Ð¿¡¼ ÆÄ±«¿¡ À̸£´Â ºÒÆ÷ÈÅäÀÇ Àü °Åµ¿À» ±â¼úÇÒ ¼ö ÀÖ´Ù. |
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| The hypothesis on effective stress of unsaturated soil is validated by $K_0$ consolidation results of triaxial tests for the compacted residual soil. The stress characteristic curve (SSCC) can describe unsaturated soil behavior on water contents, which was defined from shear strength or from soil water characteristic curves. In this study, it was found that the stress path of $K_0$ consolidation can also define the SSCC. The effective stress was defined by SSCC. $K_0$ paths for various matric suctions could be described as a unique line by effective stress. The measured values of $K_0$ were interpreted by effective stress as a constant with respect to matric suction. Since the SSCC from $K_0$ consolidation agrees with that from the shear strength, the SSCC from soil water retention curve could describe effective stress behavior consistently on both $K_0$ consolidation path and stress at failure. The effective stress based on SSCC can describe the entire unsaturated behavior from consolidation to failure. |
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| Ű¿öµå |
| Consolidation;Effective stress;Suction stress;Unsaturated soils; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.1, 2011³â, pp.41-52
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201115537946594)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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