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자료유형
학술대회자료
저자정보
저널정보
한국철도학회 한국철도학회 학술발표대회논문집 한국철도학회 2004년도 추계학술대회논문집
발행연도
2004.10
수록면
191 - 197 (7page)

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초록· 키워드

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As one of reinforcing methods for soft roadbed, the problems that mud-pumping and settlement occurred by soft roadbed, were investigated, evaluated and analyzed through installing relatively economical and efficient geosynthetics on the selected track-bed for testing.
Mock-heang to Dong-ryang on the filed testing sections in the Chung-buk lines were selected as investigating the state of track and prepared field after selecting three of 1,700 spots which often make mud-pumping and requiring maintenance for that. Long curved line radiuses(R) of Mock-heang to Dong-ryang are 500m that were installed with 4 types of geosynthetics layers and one ballast layer. Installed testing cross-section is 200m totally with 40 m between places.
Strength of prepared roadbed was measured to investigate the state of roadbed and track with constructing (installing) field testing sections and physical properties of roadbed soils were evaluated and analyzed. Also, mud-pumping, settlement of elastic or plastic sleeper, failure of track, wheel-loads, transverse and earth pressures were measured after installing field testing sections.

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ABSTRACT
1. 서론
2. 현장개요
3. 현장부설시험
4. 현장실험결과 및 분석
5. 결론
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