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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.9, 2005³â, pp.13-23
¿µÇâÀÎÀÚ¸¦ °í·ÁÇÑ ¿¬Á÷¹è¼öÀçÀÇ Åë¼ö´É Æò°¡
( Estimation on Discharge Capacity of Prefabricated Vortical Drains Considering Influence Factors )
½ÅÀºÃ¶;¹ÚÁ¤ÁØ;±èÁ¾ÀÎ; ÀÎõ´ëÇб³ Åä¸ñȯ°æ½Ã½ºÅÛ°øÇаú;ÀÎõ´ëÇб³ Åä¸ñȯ°æ½Ã½ºÅÛ°øÇаú;ÀÎõ´ëÇб³ Åä¸ñȯ°æ½Ã½ºÅÛ°øÇаú;
 
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¿¬Á÷¹è¼ö°ø¹ýÀº ¿¬¾àÁö¹Ý°ú Áؼ³¸Å¸³Áö¹ÝÀÇ ¾Ð¹ÐÀ» ÃËÁø½Ã۰í, °­µµ¸¦ ÁõÁø½Ã۴µ¥ °¡Àå ³Î¸® »ç¿ëµÇ´Â °ø¹ýÁßÀÇ ÇϳªÀÌ´Ù. Åä¸ñ¼¶À¯·Î Á¦ÀÛµÈ ¿¬Á÷¹è¼öÀç(PVD)¸¦ Ȱ¿ëÇÏ¿© ÁöÁö·ÂÀÌ ºÎÁ·ÇÑ Áö¹ÝÀ» °³·®ÇÏ´Â °æ¿ì, ¹è¼öÀçÀÇ Åë¼ö´É·ÂÀÌ ¸Å¿ì Áß¿äÇÑ ¿äÀÎÀ¸·Î ÀÛ¿ëÇÑ´Ù. ÀϹÝÀûÀ¸·Î Åë¼ö´É·Â ½ÇÇèÀº °í¹« ¸âºê·¹ÀÎÀ¸·Î ±¸¼Ó¾Ð·ÂÀ» °¡ÇÏ¿© ÇàÇØÁö°í ÀÖÀ¸³ª, ÀÌ´Â ÇöÀå¿¡¼­ ¹ß»ýÇÒ ¼ö ÀÖ´Â ¿©·¯ Åë¼ö´É·Â ÀúÇÏ ¿µÇâÀÎÀÚ¸¦ ÃæºÐÈ÷ ¹Ý¿µÇÏÁö ¸øÇϰí ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. ÇöÀåÁ¶°Ç¿¡¼­ ¿¬Á÷¹è¼öÀç´Â ÇØ¼ºÁ¡Å䳪 ½ÇÆ®Áú »çÁúÅä¿¡ ÀÇÇØ¼­ ±¸¼ÓµÇ¾î ¹è¼öÀç°¡ ÈÖ¾îÁö°Å³ª, Á¢È÷°Å³ª ÇÏ¿© ¹è¼ö¼º´ÉÀÌ ÀúÇϵDZ⠶§¹®ÀÌ´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­´Â ¿¬Á÷¹è¼öÀ縦 Ȱ¿ëÇÏ¿© ¿¬¾àÁö¹ÝÀ» °³·®ÇÒ °æ¿ì ÇöÀåÁ¶°ÇÀ» °í·ÁÇÑ Åë¼ö´É·ÂÀ» Æò°¡Çϱâ À§ÇÏ¿© ¼ÒÇü Åë¼ö´É·Â ½ÇÇèÀåÄ¡¿Í ´ëÇü Åë¼ö´É·Â ½ÇÇèÀåÄ¡¸¦ ÀÌ¿ëÇÏ¿© ¹è¼öÀç, Åä»çÁ¾·ù ¹× Ãø¾Ð, »óÀçÇÏÁß, µ¿¼ö°æ»çÀÇ ½ÇÇèÁ¶°ÇÀ» ¼³Á¤ÇÏ¿©, ¿¬Á÷¹è¼öÀçÀÇ Á¾¹æÇâ Åë¼ö´É·Â ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ºÐ¼® °á°ú, ¹è¼öÀç Á¾·ù¿¡ µû¸¥ Åë¼ö´É·ÂÀº Æ÷ÄÏ½Ä ¹è¼öÀç°¡ Á¢Âø½Ä¿¡ ºñÇÏ¿© Å©°Ô µµÃâµÇ¾ú´Ù. Åä»çÁ¾·ù¿¡ µû¸¥ Åë¼ö´É·ÂÀº Á¡Å亸´Ù Áؼ³ÅäÁö¹Ý¿¡¼­ ´õ Å©¸ç, ÇÏÁß°ú µ¿¼ö°æ»ç, °¡¾Ð½Ã°£ÀÇ Áõ°¡¿¡ µû¶ó Åë¼ö´É·ÂÀÌ °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Æ÷ÄÏ½Ä ¹è¼öÀç°¡ Á¡ÅäÁö¹Ý¿¡ ŸÀԵǾúÀ» °æ¿ì, Çϸð´ÏÄ«Çü Äھ °¡Áø ¹è¼öÀç°¡ ¿äöÇüº¸´Ù Åë¼ö´É·ÂÀÌ Å©¸ç, Áؼ³Åä Áö¹Ý¿¡ ŸÀÔµÈ °æ¿ì¿¡´Â Ãʱ⠹è¼ö¸éÀûºñ¿Í Åë¼ö´É·Âºñ°¡ °ÅÀÇ ºñ·ÊÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
The prefabricated vertical drains (PVDs) are one of the most widely used techniques to accelerate the consolidation of soft clay deposits and dredged soil. Discharge capacity is one of the factors affecting the behavior of PVDs. In the field, a PVD is confined by clay or dredged soil, which is normally remolded during PVD installation. Under field conditions, soil particles may enter the PVD drainage channels, and the consolidation settlement of the improved subsoil may cause 131ding of the PVD. These factors will affect the discharge capacity of the PVDs. In this study an experimental study was carried out to estimate the discharge capacity of three different types of PVDs by utilizing the large-scale laboratory model testing and small-scale laboratory model testing equipments. The several factors such as confinement condition (confined by soft marine clay or dredged soil) and variations of the discharge capacity were studied with time under soil specimen confinement, The test results indicated that discharge capacity decreases with increasing load, time, and hydraulic gradient. With load application, the cross-sectional area of the drainage channel of PVD decreases because the filter of PVD is pressed into the core. The discharge capacity of the soft marine clay-confined PVDs is much lower than that of the dredged soil-confined PVDs.
 
Ű¿öµå
Discharge capacity;Dredged soil;Hydraulic gradient;Large-scale model test;Marine clay;PVDs;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.9, 2005³â, pp.13-23
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200508824125302)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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