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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.3, 1992³â, pp.61-74
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¹è¼ö¿ë GeotextlleÀÇ Æò¸éÅõ¼ö ¼º´ÉºÐ¼®
( Analysis on Character and Ability of In -Plane Permeability of Geotextiles Used for Darainage ) |
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| Geoteztile drainÀÇ ¼³°è¸¦ À§ÇÑ ±âÃÊÀڷḦ Á¦½ÃÇϱâ À§ÇÏ¿© ¹è¼ö¿ë geotextileÀ» ´ë»óÀ¸·Î Æò¸éÅõ¼ö¼º´ÉÀ» ½ÇÇèÀûÀ¸·Î ºÐ¼®ÇÏ¿´´Ù. ÀϹÝÀûÀ¸·Î ¾ÐÃàÀÀ·ÂÀÇ Áõ°¡¿¡ ´ëÇÑ geotextileÀÇ µÎ²², Æò¸éÅõ¼ö°è¼ö ¹× Àü¼ö¼ºÀº 10KN/m2 Á¤µµ ÀÌÇÏ¿¡¼ ÇöÀÚÇÑ °¨¼Ò¸¦ º¸¿´À¸¸ç GeotextileÀÇ Æò¸éÅõ¼ö°è¼ö´Â Àå¼¶À¯ºÎÁ÷Æ÷°¡ ´Ü¼¶À¯ºÎÁ÷Æ÷³ª º¹ÇÕÆ÷ º¸´Ù ³·°Ô ³ªÅ¸³µ´Ù. ¶ÇÇÑ GeotextileÀÇ ¾ÐÃà·üÀº PES. °èºÎÁ÷Æ÷°¡ PP°è ºÎÁ÷Æ÷ º¸´Ù Å« °æÇâÀ» º¸¿´À¸¸ç geotextileÀÇ ¾ÐÃàÀ½·Â e(KN In)¿Í ¾ÐÃà·ü Cr(oA)ÀÇ °ü°è½ÄÀº Cr=13.37 In+23.28·Î Ç¥½ÃµÇ¾ú°í 2KN In"¸¦ ±âÁØ À¸·Î ÇÑ ¾ÐÃà·ü Cr'¿Í Æò¸é Åõ¼ö°è¼ö °¨¼ÒÀ² PrÀÇ °ü°è½ÄÀº Pr=1.250r'·Î Ç¥½ÃµÇ¾ú´Ù.½ÃµÇ¾ú´Ù. |
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| In order to provide fundamental data for the design of geotextile drains, the in-plane permeability coefficients were determined by tests and permeable cllaracteristics were investigated, mainly on domestic nonwoven and composite getextile products used for drainage purpose. The results obtained are as follows, The thickness, the in-plane permeability coefficient and the transmissivity with the in- crease of compressive stress are found to be remarkably decreased when the compressive stress is lass than about 10KN/m2. The inflane permeability of filament nonwovens are found to be lower than that of composites or staple-fiher nonwovens, and the compressibility of the geotextile shown to be larger for the polyester nonwovens than for the polypropylene nonwovens. The relation of compressive stress, q and compressibility, Cr is expressed as Cr=13.37 In q+23.28 and that of compressibility on the basis of 2KN /m2, Cr' and decrease ratio of in-plane permeability coefficient is followed Pr: 1.25Cr' |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.3, 1992³â, pp.61-74
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444715)
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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