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RISS 인기검색어
- 검색키워드
- 저자 : h 대n Min):최정주(Jung-ju Choi) (검색결과 1 건)
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민병헌Byeongᅳ,h 대n Min):최정주(Jung-ju Choi),전병혁(Byung-hyuk Jun):변현종(Hyun-jong Byun) 호서대학교 공업기술연구소 2007 공업기술연구 논문집 Vol.26 No.1
Currently about 70000km public sewer was constructed in Korea. But, the condition is poor. And most of the sewers has whole functional or structural problems. The sewers are deteriorative and continuously required rehabilitation and renovation. Many sewage treatment plants were constructed and the capacities of them were increased in Korea. But, Inflow of underground water and Outflow of sewage from the faulty sewers decreased processing abilities of sewage treatment as 30-50% and polluted underground water. In the past times, the method for construction, renovation and rehabilitation to bring a solution to these problems was the existing excavation method that excavate a road, construct sewer and pave the road again. There were no problems in the excavation method at the past days which was low industrial society and easy conditions of traffic. Today, America, Japan and Europe are concerned about excavate construction come into being problems which are the high construction expenses, the loss of society cost, accident, pollution by industrial growth and the increase of the volume. So, advanced nations develop and supply new methods which are trenchless technology. In this research, we identified the characteristics of the sewers repaired with CIPP method one of the trenchless technologies used at present, and probed the characteristics of the sewers repaired with CIPP method after second damage by I/I test, Strength test and Flow test.
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