1-20 of 33
Keywords: tunnel face
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-028
... of EUROCK 2017 doi: 10.1016/j.proeng.2017.05.174 ScienceDirect Symposium of the International Society for Rock Mechanics Stability Under Seepage Flow Conditions of a Tunnel Face Reinforced by Bolts P. Perazzellia G. Cimbalib, G. Anagnostoua aETH Zurich, Switzerland bUniversity of Bologna, Italy Abstract We...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-108
... prediction method, analyses electric fields through the tunnel-ahead rock mass between sensors attached to the tunnel face. TEPS requires approximately two hours overall for measurements and analyses, and it predicts 3–4 times the tunnel diameter ahead of the tunnel face. In this study, tunnel-ahead...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-067
... that the equilibrium points obtained by 3-dimensional analysis which represents advance of the tunnel face have deviations from those by 2-dimensional (plane strain) analysis. Final ground displacement and final support pressure obtained by 3-D analysis might be bigger than the values by 2-D analysis. But the reason...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-171
... by this technique, however, is poor as the tunnel overburden becomes large. In response to this problem, the authors developed a new survey method in which drilling vibration data were used, called tunnel seismic probe drilling (T-SPD), to estimate the seismic wave velocity distribution ahead of the tunnel face so...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-169
... Zone Reservoir Characterization calculation tunnel face repository Calculation Method equation gsi calculation determination kovács Hoek Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-204
.... This monitoring study in the immediate vicinity of the tunnel face is the first one in the world so far within the knowledge of the authors. In this paper, the authors describe the several monitoring studies and the results obtained so far. They also discuss the implications of this study within the integrated...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-020
... deformation tunnel face steel pipe tunnel shotcrete poligon station injection shotcrete thickness ABSTRACT: The main structure of the Poligon station, which is situated on route of Üçyol- Üçkuyular line as part of Izmir subway development works consists of diaphragm wall. Under the diaphragm wall...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-031
... landslide-sliding surface inclinometer size twin tunnel tunnel face warning systems tunnel excavation landslide response excavation tunnel monitoring landslide displacement rate interpretation cross section ABSTRACT: The interaction between deep seated landslides and infrastructure...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-188
... Nuclear Power Plant (NPP). The present paper discusses the stability issue of the tunnel face, including investigation of the Western Exploratory Tunnel (WET) of the NRWR. The face stability has been analyzed assuming that the WET crosses a fault-zone, which dominantly consists of weak, highly fractured...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-091
... Upstream Oil & Gas RME metals & mining TBM shale asturia Reservoir Characterization methane tunnel face emiliano formation oviedo Pajare tunnel emission excavation tunnel Excavability structural geology injection correlation instability Bieniawski north portal Rock...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-180
... tunnel face Umbrella spatial resolution backscatter forepole fiber monitor forepole temporary support element loading mohamad Rayleigh test configuration support element Brillouin deformation Upstream Oil & Gas strain profile forepole temporary support element experimental result...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-150
... Abstract As only a small part of the tunnel face of a TBM-driven tunnel can be inspected visually, a photographic documentation was tested, in order to get a more holistic picture. For this purpose a standard photographic camera was installed in one of the manholes of the cutterhead. During...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-170
... the pre-displacement of the surrounding rock is obtained from the elastic mechanics and integral creep model. Numerical results indicate that the pre-displacement appear at 1~1.5D away from the tunnel face in the beginning, and turn to a stable state at 2~3D away from the tunnel face; the pre-displacement...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-178
.... Introduction Tunnel face stability is a big concern in tunneling excavated in soils or soft rock masses, because it is the source of many collapses. For tunneling in soils, it is common to employ EPB or Slurry TBM, whereas excavation methods without face support and with great cross sections are often used...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-141
...Rock Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00080-3 Evaluation of geological conditions ahead of a tunnel face using the Tunnel Seismic Prediction method (TSP) Lesson learned from the Pahang-Selangor raw...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-144
... Abstract: The Convergence Confinement Method (CCM) is a 2D simplified approach for resolving 3D rock-support interaction problems associated with the installation of support near a tunnel face in underground excavations. Some authors have recently put forward the idea that the behaviour...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-029
... on orientation analysis of fractures using stereographic projection. The results indicate that there are obvious differences in the models due to sampling scale and dimensionality. Yet, the fracture mapping of tunnel faces and boreholes respectively was found to give similar results even though the scanlines...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-056
... ahead of the tunnel face. The present paper investigates the stability of the tunnel face in narrow fault zones by means of limit equilibrium analyses. The failure mechanism takes into account the fact that, in contrast to the case of homogeneous ground, the extent of the failure zone is limited...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-057
... (Gibbs, et al., 2007). This concept has also been labeled the arch effect by (Lunardi, 2000). This aid in stress flow is said to minimize pressure at the tunnel face. convergence-confinement method eurock 2012 excavation Diederich Upstream Oil & Gas lateral earth pressure theory...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-081
... support system lining final lining Reservoir Characterization overstress tunnel face final lining loading Upstream Oil & Gas temporary support measure shotcrete creep time-dependent load geomaterial hydrostatic pressure construction Rock Mechanics in Civil and Environmental...

Product(s) added to cart

Close Modal