• 제목/요약/키워드: 확산오염

검색결과 792건 처리시간 0.026초

Permeability Characteristics of Geosynthetics Vertical Barrier Connections for the Prevention of Contaminants Diffusion (오염물질 확산방지를 위한 토목섬유 연직차수벽 연결부의 투수성능 평가)

  • Park, Jeong Jun
    • Journal of the Society of Disaster Information
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    • 제18권1호
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    • pp.1-9
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    • 2022

  • Purpose: In this study, we used hydrophilic waterstop used in geosynthetics vertical barrier system to evaluate the performance of impermeability under sealing conditions. Method: ASTM D5887 and ASTM D6766 were applied to determine the capability of the connection during the geosynthetics vertical barrier system. Hydrophilic waterstop was saturated in each solution and the weight, thickness, and volume changes were analyzed over elapsed time. Hydrophilic waterstop was installed at the geosynthetics vertical barrier system connection to evaluate the permeability characteristics. Results: As the expansion reaction time of hydrophilic waterstop increased relatively under saline conditions, the decrease in permeability also showed a smaller decrease in fresh water. Furthermore, the method of engagement of the geosynthetics vertical barrier system showed somewhat better performance of the impermeability due to the large pressure resistance caused by the roll joint type than interlock type. Conclusion: In urban pollutants, which can estimate the outflow of pollutants such as oil storage facilities and industrial complexes, proactive response technologies that can prevent the contaminant diffusion can significantly reduce the damage.

  • https://doi.org/10.15683/kosdi.2022.3.31.001 인용 PDF KSCI HTML