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Showing 1 to 6 of 6 for “"Tunnel Support"”.
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Reliability-based design of tunnel support systems
Recent developments of tunnelling technology have led to the construction of many tunnels, not only in rural areas, but also in cities. In particular, tunnel construction in cities requires very high standards of safety, since failure can cause the loss of many human lives as well as damage of …
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Geotechnical engineering design of a tunnel support system - a case study of Karuma (600MW) hydropower project
Tunnels have been built since 2180 B.C., through the stone age. They became popular worldwide since the eighteenth century, as transportation, military, mining, conveyance, storage and flood control structures. Due to the increasing world population, urbanization and industrialization, the …
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Back-analysis methods for optimal tunnel design
… behavioral trends of the work. Especially in tunnels, this is of paramount importance when the contractual arrangements allow an adaptive tunnel support design during construction such as the NATM approach. Utilization of measurements can reveal important aspects of the ground-support …
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3D numerical modelling of brittle failure in mechanized excavation of deep tunnels
For long and deep tunnels as currently under construction through the Alps, mechanised excavation by using Tunnel Boring Machines (TBMs) may contribute significantly to savings in construction times and costs. Questions are however posed due to the severe ground conditions which in cases are …
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Movements around a tunnel in two-layer ground
An increasing need for accurate predictions of tunnelling-induced ground movements and potential damage to structures has produced a number of publications over the past 30 years. Few, however, have addressed the problem of tunnelling in ground consisting of more than one soil layer or the …
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High Spatial Resolution Measurement of Tendon Reinforcement in Underground Construction Works
… elements that are commonly used in mines and tunnelling projects. Central to this research effort is the application of a particular high spatial resolution Rayleigh optical frequency domain reflectometer that is able to distinguish strain along a standard optical fiber at spatial increments …