• Title/Summary/Keyword: 건설중장비

Search Result 51, Processing Time 0.016 seconds

A Study on the Evaluation of Shear Strength of Geotextile & Geomembrane by Traffic Load in Landfill Final Cover System (폐기물 매립지 최종복토층에서 교통하중에 의한 부직포 및 Geomembrane의 전단강도의 변화에 대한 사례연구)

  • Park, Sang-Hyun;Lee, Jai-Young;Choi, Mun-Young
    • Journal of the Korean Geosynthetics Society
    • /
    • v.1 no.1
    • /
    • pp.3-11
    • /
    • 2002
  • The Geotextiles have been used for the protection of Geomembrane and the prevention of clogging phenomenon; however, the material can be easily damaged by construction equipments. It generally recommended to use at least $500g/m^2$ of Geotextile in Korea landfill, but few researcher were performed about the damage of Geotextile. Therefore, we intended to evaluate the potential damage of Geotextile by the traffic load simulating the final cover system in a field scale. Tensile strength and strain were appraised to understand the degree of damaged Geotextile. The tests were conducted under the condition of cross direction of Geotextile. Four different weight of Geotextile was used for the evaluation $500g/m^2$, $700g/m^2$, $1,000g/m^2$ and $1,500g/m^2$. The initial strain of $500g/m^2$ of Geotextile showed 50% that did not meet the standard 60%. The strain of $700g/m^2$ of Geotextile was below the standard after the traffic load test; however, the others met the requirement in the test. In conclusion, the weight of Geotextile used in landfill to protect the Geomembrane should be at least $700g/m^2$ in a view of strain requirement. We expect this study provides fundamental information for the construction of Geotextile in landfill.

  • PDF