<p>With widespread increasing applications of mechanized tunneling in almost all ground conditions, prediction of tunnel boring machine (TBM) performance is required for time planning, cost control and choice of excavation method in order to make tunneling ...

<p>Total control of a tunnel project is currently possible with intelligent self-monitoring tools. The implementation of operational parameters of the TBM with other related issues around the construction process provides high quality information useful for ...

<p>Current advances in science, followed by development of excavation equipments technology resulted in growth of tunnelling projects for different purposes. In spite of conducting exploratory studies prior to these projects, in some cases due to of impassable ...

<p>Diminishing surficial mineral deposits, increasing environmental regulation and advanced geological exploration techniques are ushering in a new era of mining. Unconventional technology must be adopted to ensure that safe, efficient and responsible access ...

<p>According to the features of tunnel drilling machine that are not easily removable after start to work, and geological parameters that makes these devices functions be different in different contexts. On the other hand, causes to detect the excavation team ...

<p>The simulation of the advancing process for arbitrary alignments during shield tunneling requires a continuous adaption of the nite element mesh in the vicinity<br />of the tunnel face in conjunction with a steering algorithm for the Tunnel Boring Machine ...

The Srisailam Water Tunnel-1 is 43.5km long as it crosses the Amrabad plateau which contains a wildlife sanctuary and the Rajiv Gandhi Tiger Reserve. This scheme has been planned since 1983 to provide irrigation facilities to the drought ridden areas of Nalgonda ...

<p>A mathematical relation is described between the distribution of grout over injection ports, rheological properties and vertical grout pressure gradient immediately behind a TBM. This vertical grout pressure gradient is an important loading parameter in ...

Recording drilling parameters is a useful and economical technique for acquiring geomechanical information of rock mass parameters. Although it is not usually emplyed at geotechnical boreholes it is systematically used in TBM. This paper shows the obtained ...

<p>At the time when it is completed, the Gotthard Base Tunnel in Switzerland, with a total length of 57 km, will be the longest railway tunnel in the world. The complete tunnel system consists of 153.3 km of access tunnels, shafts, railway tunnels, connecting ...