한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 1999년도 봄 학술발표회 논문집
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- Pages.323-330
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- 1999
고속도로 터널막장 천단부의 붕락구간에 대한 지반보강
The Ground Reinforcement on Daylight Collapsed Block of Crown Head in the Face of the Tunnel of Highway
초록
Daylight collapse have been occurred by about 5.0m deep at ground surface and collapse of the crown head part of the tunnel have connected to the ground surface during first step of shotcrete work after blasting of upper half section of the tunnel driving at two-way double track tunnel face section on highway construction. This study is for a successful illustration case for the earth improvement method through applying such strengthening methods as cement milk grouting, S.G.R grouting,, steel pipe reinforced multi-step grouting etc. for the purpose of earth strengthening of loosened earth block occurred by tunnel collapse.
키워드