In this first of a series of three articles, the impact of abrasive ground on TBM tunnelling is discussed....
The Norwegian coastline is characterized by deep fjords cutting into the land mass, creating infrastructure barriers, and small, scattered population. The barriers traditionally have been overcome with ferry connections and in Norway there is an extensive network of ferries representing vital...
In Norway, 23 sub sea road tunnels have been built since the Vardø tunnel was officially opened in 1983. In addition eight sub sea tunnels have been built for the oil industry as shore approaches and pipeline tunnels, and another eight for water supply and sewerage. All these tunnels are excavated...
In this third of a series of three articles, a new Soil Abrasion Test (SAT) for soft ground TBM tunnelling is described....
The Tapovan Vishnugad hydropower project(4x130 MW) in the Himalayan region of India, has been used as a case study to compare the problems and costeffectivenessof a TBM or drill and blast excavation of the headrace tunnel and to assess the rock support measures for the powerhouse cavern. The NTH...
In this second of a series of three articles, existing test methods to describe the abrasiveness of rock and soils are discussed....