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Keywords: water inflow
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Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-137
... production logging deviation heat flow surface temperature water inflow tunnel axis boundary condition procedure Reservoir Characterization Modeling & Simulation Gotthard Base Tunnel uplift erosion rock temperature prediction Busslinger tunnel inflow verification ABSTRACT: In deep...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-018
... will be covered with an total sealing in order to avoid a lowering of the ground water level in this area for reasons of nature protection. knowledge management garmisch-partenkirchen water inflow Upstream Oil & Gas moraine Kramer tunnel construction hillside spring moor groundwater table...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-186
... of water inflow into the tunnel. It is important to treat the rock mass in such a way that all permeable joint systems are sealed and no water inflow takes place inside the tunnel. In this respect, pre-injection grouting principle is used in Norwegian road tunnels to achieve impermeability and to control...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-078
... Abstract: Reliable prediction of rock mass deformation, mine stability, mine water inflow is not only essential for improving mine safety and reduction of coal produc-tion costs, but also important for the assessment of environmental impact of mining. This prediction requires the accurate...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-133
... and located between km 239+934,00 and km: 244+030,80. Tunnel is excavated in Porsuk Miocene Formation (sandstone, clay stone, gravel alternation) and Akpinar Formation (limestone-sandy limestone) which have same ages. Excavations started in the tunnel entrance portal in Porsuk Formation and water inflow has...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-125
..., the water inflow should be minimized. Although cement grout has been applied to reduce the inflow at 460 m depth at the MIU (Mizunami Underground Research Laboratory), the water inflow through narrow fractures which cement grout cannot penetrate might be a problem at deeper under-ground. Colloidal silica...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-001
... Abstract High damage potential, relatively high pore pressures and limited pre-construction accessibility are the main features of subaqueous tunnels. Potential hazards include high water inflows or even a complete flooding of the tunnel in the case of a hydraulic connection to the seabed...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-080
... Discharge prediction analytical solution inflow Upstream Oil & Gas bolu tunnel assumption Reservoir Characterization equation 7 Groundwater Flow hydraulic conductivity Ankara msec 1 tunnel circumference calculation water inflow expression water head Laplace equation...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-049
... the geologists could estimate a resonably well defined range for the relevant parameters as permeability coefficients and porosity of the material as well as water inflow and outflow from the area investigated. The main object of the numerical study can be summarized as follows: 1. Evaluate the lowering...

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