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Keywords: hydraulic conductivity
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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-059
... damage zone (EDZ) with higher hydraulic conductivity than the undisturbed rock mass. This paper studies the groundwater pressure in the rock mass surrounding the Gevingåsen tunnel, a drill-and-blast railway tunnel in Trøndelag, Norway, lined in the walls and crown with an undrained lining structure...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-058
... a function of their hydraulic conductivity, mechanical properties and geometry is necessary for evaluation of the stability of the fractured rock mass. The stability and tightness of a hydrocarbon storage cavern in a fractured rock mass have been modelled using DISROC ® finite element code...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-082
... Abstract Field measurement of rock mass permeability is essential that numerous factors influence its directional magnitude. Lugeon test is a popularly conducted field instrument in order to measure hydraulic conductivity of a rock mass. Discontinuity orientation, spacing and discontinuity...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-049
..., Young's modulus and cohesion. However, the addition leads to a decrease in the optimum moisture content, angle of internal friction and the hydraulic conductivity of sand mixture. Optimum performance of the bentonite-sand mixture was observed when the mixture contained equal amounts of sand and bentonite...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-037
... of pressures and tem- peratures was kept going. The room temperature in Figure 3 is the same as the temperature in surrounding environment in Figure 2. The hydraulic conductivity of granite obtained by analysis using the difference of data span containing the effect of artificial temperature change...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-133
... macroscopic properties of granite such as elastic properties, damage thresholds, peak strengths, triaxial strength envelope, and hydraulic conductivity of granite at critical damage thresholds. 1 Introduction It is well-documented in geomechanics-related literature that the permeability of the rock is...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-053
... Abstract The advantage of using centrifugal acceleration as a fluid driving force is that it acts as a body force in a way that is similar to that of gravity. To compare the saturated hydraulic conductivity of impermeable rocks, constant head tests under centrifugal acceleration and gravity...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-127
... Abstract: Grouting, which involves injection of grout material, is commonly used to decrease the hydraulic conductivity of the fractured rock masses and control the groundwater inflow. Since underground facilities were constructed in various geologi-cal conditions, different types of grout...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-005
... grouting works of rock tunnels. Upstream Oil & Gas observational approach penetrability hydraulic fracturing calculation hydraulic conductivity rock mass Artificial Intelligence aperture cement application transmissivity grout mix grout propagation complex reservoir conceptual...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-149
... hydraulically induced cracks and the crack width at a given internal water pressure. The design of reinforcement depends on the bedding of the lining (e.g. deformability of the rock mass), the hydraulic conductivity of the rock mass in relation to the concrete lining, the external and internal water pressure...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-052
... ABSTRACT: Fluid flow through random two-dimensional fracture networks has been investigated, with the aim of establishing a methodology for estimating the macroscopic effective hydraulic conductivity from the parameters of the fracture network. In the cases examined, the lengths are...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-080
... topography of region are given. The hydraulic heads, generally varying in accordance with topography are given. The water discharge at a certain point of the tunnel is calculated. Where, the rocks are considered to have hydraulic conductivities between 10 −6 and 10 −8 msec −1 . But, at some points water...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-064
... hydraulic head and hydraulic gradient. Experimental test under normal and shear mode are performed and results show that, increasing normal stress cause a decrease in hydraulic conductivity. Furthermore, the results indicate that the inlet water pressure directly affects hydraulic conductivity. During shear...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-098
... ABSTRACT Whether the shear displacement can exert a significant control on the fault hydraulic conductivity of rocks or not is common major concerns in both engineering fields and earth science fields. To clarify the relation between hydraulic conductivity and inner structures in rocks, we...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-016
... rock mass inertia field consolidation hydraulic conductivity perfect consolidation closure relation structural geology gravity field consolidation model jointed rock mass equation Reservoir Characterization dimension contact consolidation ei tani media Eurock 2005 -Impact of Human...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-088
... accompanying the contacts and having particular geometrical features varying from a single joint to an extremely fractured- weathered espessure. The hydraulic conductivity of these big joints and the contacts between flows tend to be the highest in the whole conjunct composed by the dense basalt plus...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-044
... Gebirge Moon Hyun-Koo & Jue Kwang-Sue Hanyang University, Seoul, Korea ABSTRACf: A theoretical procedure estimating the thermal and hydraulic conductivities of jointed ~O~kmasses is presented. The method for appoximating the thermal expansion coefficients of well- JOtnted rock masses is also described...

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