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Comparison of earth pressure around pipe-roof between UPRS and front-jacking method
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 Title & Authors
Comparison of earth pressure around pipe-roof between UPRS and front-jacking method
Sim, Youngjong; Jin, Kyu-Nam; Song, Ki-Il;
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 Abstract
This study is to confirm the effect of pre-installed pipe-roof by measuring earth pressure acting on the underpass. In recently developed trenchless methods pre-inserted steel pipes before ground excavation to form pipe-roof are connected each other with re-bars and filled with mortar. In this study, focusing on the Upgraded Pipe Roof Structure method (UPRS) and Front-Jacking, earth pressure around pipe-roof is measured after insertion of steel pipe to ensure the effect of earth pressure reduction. In case of the UPRS earth pressure is considerably reduced because of the reinforced effect of pipe-roof. In case of the Front-Jacking in which the whole underpass structure is pushed into the ground, earth pressure is not reduced as expected, because the pre-installed pipes are not needed to be reinforced.
 Keywords
Trenchless method;Pipe-roof;UPRS;Front-jacking;Earth pressure;
 Language
Korean
 Cited by
1.
비개착 일체형 파이프루프 지보효과의 실험적 분석,심영종;진규남;

한국터널지하공간학회 논문집, 2016. vol.18. 5, pp.377-387 crossref(new window)
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