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Keywords: lining
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Proceedings Papers
Design Aspects of Segmental Tunnel Lining in Difficult Rock Conditions
Available to Purchase
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-072
... Abstract Despite plenty of research studies in design of segmental tunnel lining, there have still been serious concerns in damage mechanism of segmental lining in weak rock masses. With significant increasing of mechanized tunnelling practically in all kind of ground, including highly...
Proceedings Papers
Numerical Modelling of a Large Tunnel Lining in a Creeping Rock Mass Based on 20 Years Monitoring Data
Available to Purchase
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-116
... Abstract The French project of deep geological storage for nuclear waste (Cigéo) gives rise to a lot of innovative issues for underground space technologies. For example, the nuclear activity of the waste generates temperature effects on the lining, needing to mitigate the number of waste...
Proceedings Papers
A Method to Define the Priority for Maintenance and Repair Works of Italian Motorway Tunnels
Available to PurchaseM. Barla, M. Barbero, M. Baralis, A. Insana, L. Milan, E. Rosso, A. Selleri, A. Marchiondelli, P. Mele, L. Tripoli, L. Zilli
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-177
... to some Italian motorway tunnels is shown in chapter 3. geologist public safety italy government italian motorway tunnel application geology risk management rock engineering theory law enforcement risk and uncertainty assessment practice iop publishing iop conf intervention lining...
Proceedings Papers
Practice of the Doorstopper Stress Measurement Method During the Last 30 Years in Italy
Available to Purchase
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-169
... characterization rock engineering environmental science 833 tunnel theory axis matrix equation information lining excavation borehole Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012167 doi:10.1088/1755-1315/833/1...
Proceedings Papers
Effect of the Lay Distance of a Stiff Support on the Applicability of the Convergence-Confinement Method
Available to Purchase
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-170
... Abstract The use of the classical ConVergence ConFinement (CV-CF) method which is a simplified tunnel design tool is very extended nowadays. A major limitation of this plane-strain approach is encountered when it is applied to the study of tunnels with a stiff lining near the tunnel face...
Proceedings Papers
Behaviour of Sulphate-Bearing rock: Lessons from the Gotschna Tunnel and Other Tunnels
Available to Purchase
Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-030
... tunnels to determine similarities and differences. reservoir characterization structural geology gotschna tunnel road tunnel reservoir geomechanics upstream oil & gas correlation counter pressure mpa sulphate-bearing rock ground transportation steiner eurock 2020 heave lining...
Proceedings Papers
Distinct Element Modelling of the Water Pressure on an Undrained Tunnel Lining
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Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-059
... Abstract A concern during the design of an undrained tunnel lining is the possibility of a high groundwater pressure occurring behind the lining. If the lining is applied only to the tunnel walls and crown, flow to the invert may cause a pressure alleviation, possibly enhanced by an excavation...
Proceedings Papers
Influence of Foliation Orientation on Tunnel Behavior
Available to Purchase
Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-112
...]. reservoir simulation davila mendez procedia engineering 191 tunnel axis foliation strike orientation Upstream Oil & Gas numerical simulation strike perpendicular rock mass relative orientation foliation orientation Magnitude displacement lining dip angle foliation perpendicular...
Proceedings Papers
Effect of Different Loading Conditions on Tunnel Lining in Soft Rocks
Available to Purchase
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-154
... percent of clay is selected for physical modeling, as the PoP alone shows brittle behavior. It is interpreted that the height of overburden is a critical factor in correlating degree of fracture and damage to the tunnel - lining. Series of experiments are carried out with lining materials and litho-static...
Proceedings Papers
Pilot Test of Compressed Air Storage in Underground Rock Cavern
Available to Purchase
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-164
... ABSTRACT: A pilot scale research was carried out to verify the feasibility of compressed air storage in lined rock cavern. Two caverns with a diameter of 6m were excavated at a depth of 100 m below the surface ground in a mine. This paper presents assessment technologies of geomechanical...
Proceedings Papers
Deep Shaft Excavation - Geotechnical Monitoring and Back Analysis
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Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-203
... stresses a good match of the calculated and the observed displacement pattern was found. 1 INTRODUCTION The Semmering Base Tunnel (SBT) is situated in Eastern Austria and is part of the Baltic-Adriatic Corridor, which is one of the most important cross-Alpine lines in Europe ( http://www.baltic...
Proceedings Papers
Design and Back Analysis of NATM Tunnels in Fractured Rock
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Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-059
... the westbound tunnel holds a length of 924.0 m except for a few meters thick fill. The tunnels were excavated within the Trakya Formation bedrock having very weak and weathered rock mass sections. In addition, the twin tunnels were passing under a densely populated district, city water lines, crossing roads...
Proceedings Papers
Critical Comparison Between the Double-Convex and Flat Radial Joints Features in Segmental Tunnel Lining
Available to Purchase
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-112
... ABSTRACT: More recently, the demand for application of segmental tunnel lining has been raised for both long & deep tunnel in rock and shallow tunnel in soft ground, particularly in urban areas. From technical and economical points of view, a proper dimensioning of the segmental lining has...
Proceedings Papers
Methodology of the Geotechnical Design of the 27.3 Km Long Semmering Base Tunnel, Austria
Available to Purchase
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-123
... The Semmering Base Tunnel (SBT) is situated in Eastern Austria and is part of the Baltic-Adriatic Corridor, which is one of the most important cross-Alpine lines in Europe. Based on extensive geological investigation in the station and alignment selection procedure and environmental impact assessment a detailed...
Proceedings Papers
Hydro Power Plant Obervermuntwerk II - Shotcrete Phenomena in the Power House Cavern - Decisions and Remediation
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Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-088
... m and the 2800 m long Silvretta high pressure tunnel. The maximum overburden is roughly 1100 m. Both the inlet tunnel and the Silvretta high pressure tunnel are lined with pre-casted segmental linings in the invert and an in-situ concrete shell. The last 600 m of the Silvretta tunnel are first lined...
Proceedings Papers
Design Methodology for Tunnels
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Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-119
... into the following task forces: Structural design (methodology, applicability of partial safety factors, stiffness influence) Uncertainties in the ground model and its conse- quences on the design Inner lining and the long-term stability of the primary support TBM and pre-cast concrete segments Pressure...
Proceedings Papers
Numerical Analyses of Deep Tunnels Driven Through Massive Faults
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Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-144
... Reservoir Characterization pore pressure rock mass type lining Upstream Oil & Gas normal stress shield skin excavation Fault Zone displacement numerical analysis deep tunnel cross section 60 reservoir geomechanics system behaviour mesh support measure stiffness time...
Proceedings Papers
Finite Element Simulations of Twin Shallow Tunnels
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Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-185
... alternative as suggested by Vermeer et al. (2002). This procedure leads to an estimate of the relaxation factor, which allows to reproduce the 3D subsidence phenomena using a 2D analysis. However, the so calibrated λ-value does not guarantee the match of lining forces and displacements as calculated...
Proceedings Papers
Investigations on Telescope Yielding Elements with Porous Filling
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Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-191
... conditions are commonly associated with high loads and massive deformation of the lining. The idea of using ductile elements in the lining has become a well-known practice in such conditions. During the last century, different solutions have been developed. In this paper, the focus is on Telescope-Yielding...
Proceedings Papers
FEM Analysis of the Existing and New Linings for Diversion Tunnels No. 1 & 2 - Rogun Dam & HPP Project
Available to PurchaseGiovanni Barla, Abolfazl Mehinrad, Ali Gheshmipour, Niloofar Binazadeh, Idin Ebrahimi, Gholamreza Khoshrang
Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-142
... concrete lining for those parts of the tunnels, which will be used as tailrace tunnels are underway. The present paper describes the present conditions of diversion tunnels No. 1 & 2 and explains the procedure used for stress analyses of tailrace tunnel No. 1 without and with the new lining, which, has...
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