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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.8, 2007³â, pp.137-147
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»ïÃ༿¿¡¼ ÇØ¼ºÁ¡ÅäÀÇ µî¹æ ¹× Ko ¾Ð¹Ð¼Ò¿ä ½Ã°£
( Required Time for Isotopic and Ko Consolidation of Marine Clay in Triaxial Cell ) |
| À̰æÁØ;Á¤µÎȸ;ÀÓÁ¾Ã¶; (ÁÖ)µ¿¾ÆÁöÁú;ºÎ°æ´ëÇб³ °Ç¼³°øÇкÎ;ºÎ»ê´ëÇб³ Åä¸ñ°øÇаú;
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| ºÎ»ê ½ÅÇ×°ú ÆòÅÃÇ× Àα٠Áö¿ªÀÇ ÇØ¼º ÅðÀû Á¡Åä ½Ã·á(Á÷°æ°ú ³ôÀÌ : °¢°¢ 5.0cm, 10.0cm)¸¦ ´ë»óÀ¸·Î »ïÃà ¼¿¿¡¼ µî¹æ ¾Ð¹Ð(¼ø°£ÇÏÁß ÀçÇÏ) ¹× Ko ¾Ð¹Ð(Á¡ÁõÇÏÁß ÀçÇÏ)½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ½Ã·áÀÇ ¾Ð¹ÐÁøÇàÁ¤µµ¸¦ Æò°¡Çϱâ À§ÇØ ½ÃÇè°úÁ¤¿¡¼ ÃøÁ¤µÈ Ãà ¾ÐÃà ¹× Ã¼Àûº¯Çü·üÀ» ÀÌ¿ëÇÏ¿© µÎ ¹æ¹ýÀ¸·Î ȸ±ÍºÐ¼®À» ¼öÇàÇÏ¿´À¸¸ç ¶ÇÇÑ, µî¹æ ¹× Ko ¾Ð¹Ð ½ÃÇè °á°ú¸¦ ±Ù»ç ÇØ¼®Çϱâ À§ÇØ ¿¬Á÷°ú ¹æ»ç¹æÇ⠾йРÁö¹è¹æÁ¤½ÄÀ» À½Àû À¯ÇÑ Â÷ºÐ ±â¹ýÀ¸·Î ¼öÄ¡ÇØ¼® ÇÏ¿´´Ù. ½ÃÇè°á°ú¿¡ ´ëÇÑ È¸±ÍºÐ¼® °á°ú¿Í ¼öÄ¡ÇØ¼® °á°ú¸¦ Åä´ë·Î µÎ Áö¿ª ÇØ¼ºÅðÀû Á¡Åä¿¡ ´ëÇÑ µî¹æ ¹× Ko ¾Ð¹Ð ½ÃÇèÀÇ 1Â÷ ¾Ð¹Ð ¼Ò¿ä½Ã°£°ú Ko ¾Ð¹Ð¿¡ ´ëÇÑ ÀûÇÕÇÑ ÀçÇÏÀ²À» »êÁ¤ÇÏ¿´À¸¸ç, ±×¸®°í Á÷°æ 3.5cm, ³ôÀÌ 7.0cm ½Ã·á¿¡ ´ëÇØ¼´Â ¼öÄ¡ÇØ¼®À» ÅëÇØ¼ ÀÌ·¯ÇÑ Æò°¡¸¦ ¼öÇàÇÏ¿´´Ù. ¶ÇÇÑ, ½Ã·áÀÇ ¾Ð¹Ð½ÃÇè°á°ú¿Í ¼öÄ¡ÇØ¼® °á°ú¸¦ ºñ±³ÇÏ¿© ¿¬Á÷°ú ¹æ»ç¹æÇ⠾йаè¼öÀÇ ±Ù»çÀûÀÎ °ü°èµµ Á¦½ÃÇÏ¿´´Ù. |
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| Isotropic (instant loading) and Ko (gradual increase loading) consolidation tests were conducted in triaxial test equipment using cylindrical sample (5.0 cm in diameter and 10.0 cm in height) on two marine clay deposits. The duration of primary consolidation was estimated by two curve fitting methods using measured strain. A differential equation of consolidation for drainage in the radial and vertical direction was solved by the implicit finite difference scheme. The results of two curve fitting methods were compared with the numerical solutions to evaluate the appropriate axial loading rate of Ko consolidation and the primary consolidation periods. In addition, primary consolidation periods of the samples with a diameter of 35 mm and a height of 70 mm were calculated. The relation of radial and vertical consolidation coefficients is also presented. |
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| Ű¿öµå |
| Axial loading rate;Curve fitting method;Implicit finite difference scheme; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.8, 2007³â, pp.137-147
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734516348934)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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