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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.5, 1999³â, pp.3-18
ÅͳÎÇÊÅÍÀçÀÇ Æó»öÇö»ó°ú ¹è¼ö¼º´É Æò°¡
( Clogging Phenomenon and Drainage Capacity of Tunnel Filters )
ÀÌÀθð;À¯½ÂÇå;¹Ú±¤ÁØ;À̼®¿ø;±èÈ«ÅÃ; °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;(ÁÖ) µµ´ã¿£Áö´Ï¾î¸µ;(ÁÖ) ´öõ¿£Áö´Ï¾î¸µ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø, ÁöÇϱ¸Á¶¹° ±×·ì;È«ÀÍ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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ÅͳÎÀÇ ¹è¼öÀç·Î ÀÌ¿ëµÇ´Â Áö¿ÀÅØ½ºÅ¸ÀÏ ÇÊÅÍ´Â, ÅͳΠ³»·Î À¯ÀԵǴ ÁöÇϼö¸¦ ÃæºÐÈ÷ ¹è¼ö½ÃŰ¾î ÅͳΠ¶óÀ̴׿¡ ¼ö¾ÐÀÌ ÀÛ¿ëµÇÁö ¾Êµµ·Ï ÇØ¾ß ÇÑ´Ù. ±×·¯³ª, Áö¿ÀÅØ½ºÅ¸ÀÏÀÇ ¸·ÈûÇö»óÀ¸·Î ÀÎÇÏ¿© ÇÊÅÍÀçÀÇ Åë¼ö ´É·ÂÀÌ ¿ì¼±ÀûÀ¸·Î °¨¼ÒÇÏ°Ô µÇ°í ¸·ÈûÇö»óÀº À̸¦ ´õ¿í ½É°¢ÇÏ°Ô ¸¸µç´Ù. º» ¿¬±¸¿¡¼­´Â ¼­¿ï½ÃÀÇ ½Å³»µ¿ °ú Æ÷À̵¿¿¡¼­ äÃëÇÑ ½Ã·á¿¡ ´ëÇÏ¿© ÅͳΠÇÊÅÍÀçÀÇ Æò¸éÈ帧À» ¸ð»çÇÏ¿© Æó»öÇö»óÀ» °íÂûÇÏ¿´´Ù. ½Å³»µ¿ ½Ã·á´Â SW-SMÀ¸·Î ºÐ·ùµÇ´Â »çÁúÅä¿¡ °¡±î¿î ½Ã·áÀ̸ç, ¹Ý¸é¿¡ Æ÷À̵¿ ½Ã·á´Â SC·Î ºÐ·ùµÇ°í Á¡¼ºÀÌ °­ÇÑ ÈëÀÌ´Ù. ÇÊÅÍÀçÀÇ ÀÌ·ÐÀûÀÎ °£±ØºÐÆ÷°î¼±°ú $O_{95}$·ÎºÎÅÍ º» ½ÇÇè°á°ú¸¦ ±Ù°Å·Î Æó»ö¹æÁö±âÁØÀ» ¼³Á¤ÇÏ¿´´Ù. Æ÷À̵¿ ½Ã·á¿¡ ºñÇÏ¿© ½Å³»µ¿ ½Ã·á°¡ ´õ ¶Ñ·ÇÇÑ Æó»ö°æÇâÀ» ³ªÅ¸³¿À» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç, ÀÌ´Â Æ÷À̵¿ ½Ã·á¿¡ ºñÇÏ¿© Á¡¼ºÀÌ ¾ø¾î ÀÜÀÔÀÚ°¡ ½±°Ô ÀÌÅ»µÇ°í ÇÊÅÍÀç¿¡ ½×ÀÌ´Â ¿øÀÎÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
The geotextile filter, which is installed between the ground and the lining and used as a tunnel drainage system, should have sufficient groundwater drainage capacity so that water pressure does not act on the lining. The clogging may have a serious effect on the long term behaviour of geotextile filters. Two typical weathered residual soils in Korea, Shinnae-dong soil and Poi-dong soil, were chosen to investigate the in-plane flow characteristics of the soils with varying degree of compressive stresses applied on the geotextiles and with various conditions of hydraulic gradient. The Shinnae-dong soil is a relatively coarse material classified as'SW-SM'; on the other hand, the Poi-dong soil is much finer and is classified as'SC'. Based on the comparison of the $O_{95}$ of geotextile to the $D_{15}$ of residual soils, existing clogging criteria were reviewed, and a tentative clogging criterion for the in-plane flow of the residual soil through filters was proposed. The Shinnae-dong soil showed noticeable clogging phenomenon, while the clogging of the Poi-dong soil was not so serious. The Poi-dong soil seemed to be hindered in particle transport by its cohesiveness.
 
Ű¿öµå
Geotextile;Filter;Clogging;Tunnel;Residual soil;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.5, 1999³â, pp.3-18
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749481)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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