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Keywords: Invert
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Proceedings Papers
Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-243
...-excavated belchen highway tunnel mineral europe government opalinus clay shale geological subdiscipline evolution eth zurich swellable opalinus clay shale borehole invert mpa installation simulation 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG...
Proceedings Papers
Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-032
... situation chainage 56 invert thomas pilgerstorfer burgenland 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Burgenland s first tunnel takes its tribute geotechnical retrospective of a tunnel collapse Thomas Pilgerstorfer Geoconsult ZT GmbH, Puch/Hallein...
Proceedings Papers
Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-051
... to overloading of the supporting inner lining rather than the rock itself). geology lining excavation relaxation deformation europe government overburden compressive strength invert degradation shotcrete ground transportation tunnel prediction figure 5 convergence geologist gsi figure 4...
Proceedings Papers
Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-022
... metals & mining fh tunnel completion ground transportation permafrost kl tunnel underground excavation tunnel lining rail transportation tibetan plateau excavation maintenance tunnel sandstone portal mountain reservoir characterization construction engineering invert...
Proceedings Papers
Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-201
... an underground opening due to excavation is a key factor. With sufficient resistance of the tunnel liner, mainly in the invert, the rock mass around the tunnel is compressed, the fissures as flow path will be closed and the process of dissolution and precipitation will ultimately with sufficient counter stress...
Proceedings Papers
Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-213
... it reached 22 mg/l, this high concentration requires the presence of other ions, in particular sodium and chlorine. Based on the knowledge at the time of construction heaving ground was removed from the tunnel invert and a free space was left below the roadway that is covered by a transversely spanned slab...
Proceedings Papers
Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-320
.... The restoration plan was to remove damaged invert and construct an invert of higher load-carrying capacity as soon as possible. The upheaval of the invert was 950mm at maximum. Such a large deformation and failure of the road surface and invert, which occurred a long time after completion of the tunnel...
Proceedings Papers
Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-327
.... Upstream Oil & Gas gypsum crystal growth anhydrite extensometer vertical displacement mechanism discontinuity construction materials reinforcement borehole lining tunnel Reservoir Characterization displacement radial pressure Lilla tunnel supersaturation Alonso Invert sulphated...
Proceedings Papers
Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-170
... zones were selected to carry out full scale swelling tests using sections with both resisting and yielding supports and select the alternative support design most convenient for the tunnel. In the first zone two stretches with invert-arch were built: (i) invert-arch of 400mm (184 meters in length...
Proceedings Papers
Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-229
... of the unsupported floor over the decades. This heave has led to the considerable camber in the originally horizontal strata that is visible in Fig. 1. rail transportation displacement anhydrite principal normal stress construction materials Rock mechanics max evp rock mass constitutive law Invert...
Proceedings Papers
Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-149
... of the concrete lining that was placed (without floor). provisional support OTEO lining final lining bernold plate clay layer Rock mechanics expansivity section SC tunnel Thickness convergence excavation experimental tunnel Invert shotcrete Gran Canaria construction expansive volcanic...
Proceedings Papers
Paper presented at the 8th ISRM Congress, September 25–29, 1995
Paper Number: ISRM-8CONGRESS-1995-056
.... The tunnel which is located in marl, shale, and anhydrite containing marl was finished in 1970. The tunnel was constructed by excavating two invert drifts in each tube and then enlarging to the full cross-section. After the enlargement to the full cross-section in the Keuper formation, severe problems...
Proceedings Papers
Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-202
... were provided. Reservoir Characterization clayey material gneiss Probe central water commission Face IV Chukha Power Tunnel Wellbore Design Power Tunnel Upstream Oil & Gas concrete lining schist steel support accident Invert rock failure tunnel Crown investigation wangchu...
Proceedings Papers
Paper presented at the 4th ISRM Congress, September 2–8, 1979
Paper Number: ISRM-4CONGRESS-1979-060
... transportation shield lining budapest underground tunnel provisional support permanent lining diameter subsidence track tunnel slab underground station strata Invert PROVISIONAL SUPPORT, PRIMARY AND PERMANENT LINING AT THE CONSTRUCTION OF THE STATIONS OF THE BUDAPEST UNDERGROUND soutenement...
Proceedings Papers
Paper presented at the 4th ISRM Congress, September 2–8, 1979
Paper Number: ISRM-4CONGRESS-1979-154
... construction assumption Field Instrumentation reservoir geomechanics displacement pressure tunnel Computation excavation field measurement permanent lining lining prestress Invert tunnel deformation Rock Pressure FIELD INSTRUMENTATION IN TUNNELLING AS A PRACTICAL DESIGN AID Mesures in situ...