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Showing 1 to 6 of 6 for “"Railway Tunnel"”.
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Unmanned Aerial Vehicle (UAV) navigation and image processing techniques for underground tunnel infrastructure assessment
… across the world, hundreds of kilometres of tunnel infrastructure networks require regular inspection and maintenance to ensure the safety and serviceability of lifeline transportation systems. Large-scale underground infrastructure comprises twin tunnel cross passages, shafts, caverns, and …
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Piled foundation dynamics: Considering inertial and underground railway excitation
… heads and (2) incident waves from underground railways. The latter excitation mechanism also considers the building superstructure above the foundation. The numerical models account for the dynamic motion in three-dimensional space and are formulated in the frequency domain. A new iterative …
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Palaeomagnetic studies on some South African rocks
… from the shafts of a gold mine and from a railway tunnel were collected and studied, giving a reliable mean direction of magnetization of the Karroo dolerites of Declination= 341°, Inclination= -60°. At the commencement of the Jurassic period the geomagnetic pole relative to Southern Africa …
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Railway Tunnels Management System in South Africa – Concrete Structural Elements
… this rail network, a considerable number of railway tunnels were built due to the topography of the coastal regions. These tunnels are ageing, their operational and environmental conditions are constantly changing. Thus, their management practice should be optimised to adequately respond to …
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Rapporti tra tettonica e clima durante l'esumazione nelle Alpi Centrali. Evidenze dalla termocronologia e dall'analisi strutturale lungo il traforo ferroviario del Sempione
… analyses of apatite along deep-seated tunnels crossing high-relief mountain ranges offer the opportunity to investigate climate and tectonic forcing on the topographic evolution. In this study, the thermochronologic analysis of a large set of samples collected in the Simplon railway …
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Železniční svršek v tunelu
Diplomová práce se zabývá srovnáním konstrukcí železničního svršku v tunelu. Je porovnávána konstrukce kolejového lože a pevné jízdní dráhy – konkrétně typu se zabetonovaným kolejovým roštem a typu s prefabrikovanými deskami. Konkrétně je řešena pevná jízdní dráha typu Rheda 2000 a ÖBB-PORR. Dále …