Underwater shield tunneling will disturb the soil near river, especially in water-rich soft ground. This may cause a groundwater infiltration hydraulic gradient to exceed critical value, leading calamities, such as unexpected flooding or submerged erosion. To ensure security of construction and stability river embankment seepage, it is crucial assess safety underwater tunnel cover thickness. A ...

INTRODUCTION ROATH LAKE is a large artificial lake situated in one of the municipal parks of Cardiff, and well known as a pleasure-spot, for angling, boating, and for its waterfowl." Roath Park, in which. the lake is situated, is also noted for its recreational facilities and splendid botanical gardens, which include one of the finest rose gardens in Great Britain. An attraction of the lake up ...

Dam failures are examples of man-made disasters that have stimulated investigation into the processes related to failure different dam types. Embankment breaching during an overtopping event is one major modes for this type, comprising both earthfill and rockfill dams. This paper presents results a series laboratory tests on breach initiation progression in Especially eight 1 m-high 1:10 scale ...

Failure of dams due to overtopping is among the most frequent forms of embankment failures. Owing to massive and wide spread damage to structures and loss of lives associated with a dam failure, the subject has drawn the attention of scientists. The study also becomes essential for damage assessment and for development of early warning system of people downstream of the embankment. The rate of ...

The Red Rock Hydroelectric Project converted the existing Dam near Pella, Iowa, from a non-powered dam into multi-purpose dam. flood control was constructed by U.S. Army Corps of Engineers (USACE) in 1960s on Des Moines River Iowa. hydroelectric project developed Western Minnesota Municipal Power Agency and generates up to 55 MW with an average annual energy output 178 gigawatt-hours. new intak...