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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.6, 2008³â, pp.77-84
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½Ã°£ ÀÇÁ¸Àû ¹è¼öÀúÇ×À» °í·ÁÇÑ ¹æ»ç¹æÇ⠾йа ¿¹Ãø¹ý
( A Modified Method for the Radial Consolidation with the Time Dependent Well Resistance ) |
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| ½Ç³»½ÃÇè¿¡¼ ÃøÁ¤µÈ ¹è¼öÀçÀÇ Åë¼ö´É°ú ½ÇÁ¦ ÇöÀå¿¡¼ ³ªÅ¸³ª´Â ¹è¼ö°Åµ¿Àº ±Ùº»ÀûÀ¸·Î ´Ù¸§¿¡µµ ºÒ±¸ÇÏ°í ±âÁ¸ÀÇ ¸¹Àº ¿¬±¸µéÀº ½Ç³»½ÃÇèÀ» ÅëÇØ ȹµæÇÑ Åë¼ö´É °ªÀ» ÀÌ¿ëÇÏ¿© ¾Ð¹Ð °î¼±À» ¿¹ÃøÇϰí ÀÖ´Ù. ¶ÇÇÑ ±âÁ¸ÀÇ ¾Ð¹ÐÇØ´Â ¾Ð¹Ð ÁøÇà¿¡ µû¸¥ ±³¶õÈ¿°ú¿Í ¹è¼öÀúÇ×ÀÇ º¯È¸¦ °í·ÁÇÒ ¼ö ¾ø¾î ½ÇÁ¦ ¾Ð¹Ð°Åµ¿°ú Àß ÀÏÄ¡ÇÏÁö ¾Ê´Â ¹®Á¦Á¡ÀÌ ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ÇöÀå¿¡¼ äÃëÇÑ ´ëÇü ºí·Ï½Ã·á¿¡ ¿¬Á÷¹è¼öÀ縦 ¼³Ä¡ÇÏ°í ¾Ð¹ÐÀ» ÁøÇàÇÏ¸é¼ ½Ã°£¿¡ µû¸¥ ħÇÏ·®À» ÃøÁ¤ÇÏ¿´´Ù. À̸¦ ÀÌ¿ëÇÏ¿© ½Ã°£¿¡ µû¶ó Áõ°¡µÇ´Â ¹è¼ö ÀúÇ×°è¼ö¸¦ ½Ã°£ ÀÇÁ¸Àû ÇÔ¼ö·Î Á¤ÀÇÇÏ°í ±âÁ¸ÀÇ ¹æ»ç¹æÇâ ¾Ð¹Ð ÇØ¿¡ µµÀÔÇÏ¿© ¼öÁ¤µÈ ¹æ»ç¹æÇ⠾йР¿¹Ãø ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ ¹æ¹ýÀ¸·Î ¿¹ÃøÇÑ °á°ú¸¦ ½ÇÃø µ¥ÀÌÅÍ ¹× ±âÁ¸ Á¦¾È½Ä°ú ºñ±³ÇÑ °á°ú, Á¦¾ÈµÈ ¹æ¹ýÀÌ ½ÇÃøÄ¡¿¡ °¡Àå ±ÙÁ¢ÇÑ ¹æ»ç¹æÇ⠾йР°î¼±À» ¿¹ÃøÇÏ´Â °ÍÀ¸·Î °üÂûµÇ¾ú´Ù. |
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| The existing equations for radial consolidation cannot account for the changes of well resistance with time and cannot predict the appropriate in-situ consolidation curve. In this study, small cylinder cell tests are performed to evaluate the discharge capacity of PVD. Also, a block sample of 1.2 m in diameter and 2.0 m in height was consolidated to observe the change in the drainage capacity with time for three types of PVD. From the test results on a block sample, the drainage curves normalized with initial drainage of each PVD are similar, regardless of the PVD type and the consolidation curve, which is predicted using solutions of radial consolidation based on the discharge capacity measured in a small cylinder cell tests, significantly overestimates the degree of consolidation. The term of well resistance in the radial consolidation solution was back-calculated to fit the consolidation curve of a large block sample and it is defined as the time dependent well resistance factor, L(t). The L(t) was found to be linearly proportional to the dimensionless time factor, Th. It was also shown that the consolidation curve evaluated by using L(t) provides more accurate prediction than the existing solution. |
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| Ű¿öµå |
| PVD;Radial consolidation;Smear effect;Vertical drain;Well resistance; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.6, 2008³â, pp.77-84
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200827464608900)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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