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Çѱ¹Áö¹Ý°øÇÐȸ / v.16, no.1, 2000³â, pp.179-189
Æó±â¹° ¸Å¸³Áö ¹Ù´ÚÃþÀÇ °íÈ­Åä Æ÷¼³½Ã µ¿°á/À¶ÇØ Çö»ó¿¡ °üÇÑ ¿¬±¸
( The Effect of Freeze and Thaw for the Stabilized Soil Bottom Liners in the Landfill )
À̼Û;ÀÌÀ翵;±èÈï¼®; ¼­¿ï½Ã¸³´ëÇб³ µµ½Ã°úÇдëÇÐ Åä¸ñ°øÇаú;¼­¿ï½Ã¸³´ëÇб³ µµ½Ã°úÇдëÇРȯ°æ°øÇкÎ;¼­¿ï½Ã¸³´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
 
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The purpose of this research is to complement the existing researches on landfill bottom liners behavior during the periods of freeze and thaw. Landfill-related researches have been typically focused on small-scale soil samples that are often compacted under conditions different from those used in the field. Although these tests have been invaluable in clarifying the problem of freeze and thaw, extending the results of such experimental studies to prototype landfills are questionable. In this investigation, the author utilized a large scale laboratory simulation allowing inclusion of the field depth of the cover systems, layered soil profiles, rainfall simulation, a cold climate and boundary conditions similar to those encountered in the landfill. The soil materials were stabilized soils (mixed clays, cements, and minerals) instead of clays. The bottom liners are made up of drainage layer (30 cm), stabilized layer (75 cm), and leach collection layer (60 cm). The stabilized layers are made up of supporting layer (45 cm) and low permeable layer (30 cm) - consisting of $P_A; and; P_B$ layer. As a results, depths of penetration increased by about 2~5 more centimeters at rainfall simulated designs than those at no rainfall simulated designs (that is design 3, design 5 and design 7) - it increased by about 20mm/day in the bottom liners and frost heaves also increased it by a few millimeters. Also, a few cracks appeared partly. According to these results, we can surmise that the compacted stabilized soil is more reliable than the compacted clay liners for construction of the landfill liners.
 
Ű¿öµå
Lysimeter;Landfill;Freezing;Thawing;Thermo couple;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.16, no.1, 2000³â, pp.179-189
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011921750151)
¾ð¾î : Çѱ¹¾î
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