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Keywords: concrete lining
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-542
.... This accident forced the DAYG Group to define a more careful excavation procedure, a heavier flexible support and also to include the placing of polyurethane layers as shock absorbers and then a fiber reinforced concrete lining, in order to guarantee tunnel stability. Specific preparation and testing...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-007
... but act plasticaly and are squeezed into excavations where they are exposed. This has resulted in the structural failure of the concrete lining of the shaft and a shortening of the vertical axis in its barrel. An unacceptable risk in the safe operation of the shaft system was thus created. This paper...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-043
... during construction 10 01978, inflow of thermal (up to 46 C) water had been met at several places. Rather severe swelling was observed and once a 32 m long section of reinforced concrete lining was destroyed by high rock pressure. The measurements (Petrosian G.M. et. ale 1982) showed 1.3 MPa and higher...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-054
... and shale beds. In-situ testing results are summarized and results are related to design approach taken. Primary rock support system consists of shotcrete and pattern rockbolting. Concrete lining is provided throughout for hydraulic reasons and to assure permanent structural integrity of the conduit...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-069
... & Gas borehole lining strain release pilot stretch pd-1 pressure tunnel grout construction Reservoir Characterization design concept concrete lining rock mass tunnel permeability pilot stretch investigation limestone cross section interface deformation stress analysis SOME RESULTS...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-070
... of thermal and nuclear plants go higher and higher to meet the ever increasing power demands, so the chances of a large-scale dropout become greater. Reservoir Characterization steel lining characteristic lining construction Engineering steel concrete lining rock mass deformability resource...

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