... the intake, from the downstream end and from an adit in the middle. The cave-in problem happened in the first headrace tunnel at chainage 34+70, where the excavation was progressing from downstream and hit a weakness zone of about 15-20 m width. Reservoir Characterization renewable energy pile...

... faced in developing large-scale hydropower stations in China. Reservoir Characterization reservoir geomechanics Upstream Oil & Gas renewable energy abutment Thickness Power Tunnel marble large-scale hydropower station development stability transportation tunnel high stress...

... hardrock tunnel bore in the world. The project is described in Delmar et al. (2006). The intake and outlet structures are excavated in limestones and dolostones. Reservoir Characterization reservoir geomechanics Upstream Oil & Gas renewable energy fresh water concrete liner pore pressure...