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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.6, 2003³â, pp.299-306
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Mikasa ¾Ð¹ÐÀ̷п¡ ÀÇÇÑ Áؼ³ÅäÁö¹ÝÀÇ ¾Ð¹Ð±â°£ »êÁ¤¿¡ °üÇÑ ¿¬±¸
( Estimation of Consolidation Period for Dredged Soil by Mikasa Theory ) |
| ÁÖÀç¿ì;Á¤±ÔÇâ;Á¶Áø±¸; ¼øÃµ´ëÇб³ Åä¸ñȯ°æ°øÇкÎ;Àü³²´ëÇб³ ´ëÇпø ³ó°øÇаú;Àü³²´ëÇб³ »ý¹°»ê¾÷°øÇаú;
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| Áؼ³ÅäÁö¹ÝÀº º¸Åë ¿¬¾àÁö¹Ý¿¡ ºñÇØ »ó´çÈ÷ Å« ¾Ð¹ÐħÇϰ¡ ¹ß»ýÇϱ⠶§¹®¿¡ ¾Ð¹Ð°úÁ¤ Áß Ãþ µÎ²²ÀÇ º¯È°¡ Å©´Ù. Mikasa´Â Ãþ µÎ²²ÀÇ º¯È¸¦ °í·ÁÇÏ´Â ´õ¿í ÇÕ¸®ÀûÀÎ ¾Ð¹Ð°è»ê¹ýÀ» ¿¬±¸ ¹ßÇ¥ÇÏ¿´À¸³ª ¾ÆÁ÷ ±¹³» ÇöÀå¿¡¼ ¸¹ÀÌ È°¿ëµÇ°í ÀÖÁö ¾ÊÀº ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼´Â 100%, 120%, 133%, 150%ÀÇ ÇÔ¼öºñ¸¦ °®´Â Áؼ³Åä Áö¹Ý¿¡ ´ëÇØ Rowe cell ¾Ð¹Ð½ÃÇè±â¸¦ ÀÌ¿ëÇÑ ½ÃÇèÀ» ¼öÇàÇÏ¿© Áؼ³ÅäÀÇ ¾Ð¹ÐƯ¼ºÀ» ºÐ¼®ÇÏ¿´À¸¸ç, Ãþ µÎ²²ÀÇ º¯È¸¦ °í·ÁÇÏÁö ¾Ê´Â °æ¿ì¿Í Ãþ µÎ²²ÀÇ º¯È¸¦ °í·ÁÇÏ´Â °æ¿ì °¢°¢ ¾Ð¹Ð°è¼ö¸¦ ±¸ÇÏ¿© ºñ±³ÇÏ¿´´Ù. ¶ÇÇÑ ½ÇÁ¦ ÇöÀå ¿¹¸¦ »óÁ¤ÇÏ¿© ¾Ð¹Ð±â°£À» ±¸ÇÏ¿© º¸¾Ò´Âµ¥, ±× °á°ú ¾Ð¹Ð±â°£Àº Ãþ µÎ²²ÀÇ º¯È¸¦ °í·ÁÇÑ Mikasa ÀÌ·ÐÀÇ °æ¿ì°¡ ±×·¸Áö ¾ÊÀº TerzaghiÀÌ·ÐÀÇ °æ¿ìº¸´Ù ª°Ô »êÁ¤µÇ¾ú´Ù. ±×¸®°í, ´õ¿í Á¤È®ÇÑ °á°ú¸¦ ÁÖ´Â MikasaÀÌ·ÐÀÌ ½Ç¿ëÀûÀ¸·Î ÀÌ¿ëµÉ ¼ö ÀÖµµ·Ï ¾Ð¹Ð°è»ê¹ý¿¡ ´ëÇØ ÀÚ¼¼È÷ ¾ð±ÞÇÏ¿´´Ù. |
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| Dredged soil experiences large settlement during consolidation because of its high water contents. Large settlement alters the thickness of the consolidation layer greatly with time. However, the consolidation theory proposed by Terzaghi assumes the thickness of the consolidation layer to stay constant. Mikasa has developed a more rational theory considering the change of thickness of consolidation layer but it is not well applied at the site. In this study consolidation tests have been performed using Rowe cell for the four dredged clay samples with a water content of 100%, 120%, 133% and 150%. From the test results compression index characteristics and coefficient of consolidation characteristics have been investigated. Coefficients of consolidation obtained by Terzaghi's and Mikasa's theories, have been evaluated and compared with each other. When Mikasa theory is applied in the field design, the period to reach the required degree of consolidation has been reduced compared with the result by Terzaghi theory because the time factor $T_{v}$ by Mikasa theory decreases with increasing of final strain of consolidation layer, Calculation method consolidation time by Mikasa theory was concisely explained for its practical use.e. |
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| Ű¿öµå |
| Coefficient of consolidation;Dredged soil;Large settlement;Mikasa theory; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.6, 2003³â, pp.299-306
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922148059)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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