Stress-Strain of Geomembranes In Landfill Under Punctiform Loads

폐기물매립장 차수재의 꿰뚫림 하중에 의한 응력-변형

  • 이광열 (동서대학교 건설공학부 토목공학과) ;
  • 정진교 (부산정보대학 건설공학부)
  • Published : 2001.06.01

Abstract

Geotextiles are usually constructed as a protective layer of geomembranes in liner systems for the solid waste landfill. A protective layer and geomembrane are susceptible to mechanical damage by coarse grains in the overlying drainage layer. In this study, therefore, the strain behavior of geotextile protective layers was investigated using three different types of devices for developing punctiform loads. The results of the study showed that the rates of strain was different depend upon device types for functiform loads. Also, It was found that the increases in strain was approximately linear in range 20 to 6$0^{\circ}C$ , and pp-filament non-woven geotextiles yielded a better efficiency than pp-staple fiber non-woven geotextiles.

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