• Title/Summary/Keyword: 시스템 성능평가

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Drainage system for leakage treatment of cement concrete structure in underground (콘크리트 지하구조물 누수 처리를 위한 유도배수시스템)

  • Kim, Dong-Gyou
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.21 no.4
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    • pp.573-585
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    • 2019

  • The objective of this study is to propose the drainage system that has been improved the workability, waterproofing and drainage performance to treat the leakage from the cement concrete structures in underground. It is improved that the pipe for conveying ground leak in the existing drainage system had the problem in workability and waterproof. The drainage systems with the improved pipe for conveying ground leak were constructed in conventional concrete lining tunnels to evaluate the workability, waterproofing and drainage. The waterproof and the drainage performance of the drainage system was evaluated by injecting 1,000 ml of red water in the back of the drainage system at 3 weeks, 6 weeks, 9 weeks, 11 weeks, 14 weeks, 17 weeks and 23 weeks. During 6 months of field performance test, the average daily temperature of the tunnel site was measured from $-12.4^{\circ}C$ to $19.7^{\circ}C$. The daily minimum temperature was $-17.2^{\circ}C$ and the daily maximum temperature was $26.7^{\circ}C$. There was no problem in waterproof and drainage performance on the pipe for conveying ground leak and the drainage system during 6 months for field performance test. It is concluded that the improved drainage system can be applied to various cement concrete underground structures where leakage occurs, and has little seasonal effect.

  • https://doi.org/10.9711/KTAJ.2019.21.4.573 인용 PDF KSCI HTML