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Leakage and Drainage of Underground Water from Tunnel Lining

1975; Japan Society of Engineering Geology; Volume: 16; Issue: 2 Linguagem: Inglês

10.5110/jjseg.16.75

1884-0973

Masaji ISHII,

Civil and Geotechnical Engineering Research

On the excavation of such a under ground condition as encountering sand quick phenomenon, well-point method to lower the water-table or deep-well method to reduce the water pressure at heading is ordinally adapted. When the water-table revive after lining, sometimes leakage and piping of water cause a serious problem.This paper reports the piping phenomenon of Obara tunnel in Tokaido-Shinkansen and the counerplans for leakage and drainage of Higuchiyama tunnel in Sanyo-Shinkansen.