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Keywords: experiment
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Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-030
.... The specific questions that the experiment is in- tended to answer must be clearly identified before carrying out the experiment. One must also attempt to identify known or expected sources of variability in the experimental units since one of the main aims of a designed experiment is to reduce the effect...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-082
... ABSTRACT ABSTRACT: Closure of hydraulic fractures yields the in-situ stresses, net pressure and fracture geometry. A series of laboratory model experiments using sand samples is conducted with the aid of X-ray CT technique. The observation and analysis of CT images provide the visualized...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-135
...-term and data will be collected over a multi-year period. The particle detector associated with this experiment will need to be built at depth underground within a very large cavern. Experimental options currently under consideration call for the excavation of rock spans in excess of 50 m, mined...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-160
..., into a tridimensional geomechanical modeling code. Numerical experiments are then conducted on the created model. The objective of the experiments is to establish the impact of internal fracturing and fracture degradation on slope stability. 1 INTRODUCTION Nowadays, numerical analyses are performed on a routine...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-170
... its loading curve. Stress changes were relatively slow during the first half of the experiment. Changes increased significantly during the second half, resulting in the definition of a clear inflection point when the stope reached about 75% of its final height. Mining was stopped when a rock burst...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-205
... of laboratory experiments where radial hydraulic fractures were propagated by injecting aqueous solutions of glycerin or glucose along an epoxy-bonded interface between two Polymethyl Methacrylate (PMMA) blocks. Agreement to within 10 percent is demonstrated between the experimental results for the location...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-136
... parameters of events associated with dewatering, excavation, and various rock mechanics experiments, and estimate source kinematics caused by activity within or near the mine. Given the damage location of the event determined by the array, the rock mass can be back-excavated to find the source damage...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-186
... of the fundamental wave characteristics in grouted rock bolts. Extensive laboratory experiments and numerical simulations were conducted. During experiments, guided waves with specific input frequencies were used to study the characteristics of the rock bolts embedded in concrete. Numerical simulation using finite...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-137
... an appreciation of the hydrogeology, rock mechanics, and the processes related to the ensemble of all of these fields. Many experiments may be combined into larger, coherent research themes, be- nefiting from coordinated and collaborative sam- pling campaigns and experimental effort. Physics experiments require...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-122
... surface movement of the slope so as to verify the numerical analysis results (Fig. 4). The experiment procedure is shown in Table 3; the experiment itself is shown in Figure 5. Experimental equipment consisted of an artificial rainfall device and data collection setups. Water content measurement...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-148
... to incorporate 5D (x, y, z, time and $) visu- alization for use in long-term mine planning. Similar concepts have been re-tailored to the MFR experi- ment to provide 5D animation capability (e.g., x, y, z, time and measured head) to better understand the relationships between the measured experimental data...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-138
... experiments in situ. This paper outlines a hypothesis-driven research plan to examine the coupling between the stress field and fluid conducting fractures, which would be integrated into a broad program of geosciences, geo engineering, and biology. The research program takes advantage both of the historical...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-149
... ABSTRACT ABSTRACT: The Swedish Nuclear Fuel and Waste Management Co. has carried out the Äspö Pillar Stability Experiment at the 450-m-level of the Äspö Hard Rock Laboratory. The stresses in the pillar were controlled by the geometry of the experiment drift, the spacing between the boreholes...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-213
... of the perforations. Traditionally the penetration depth of shaped charges is tested on cement targets under ambient conditions. In this paper we describe the results of an exhaustive experimental program to evaluate shaped charge penetration in rock under downhole conditions. It was found that penetration depth...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-044
.... In this way, the protection effect can be investigated with a clearly reduced number of time-consuming field experiments. ACKNOWLEDGEMENTS This study was supported by the Board of the Swiss Federal Institutes of Technology. We thank the landowners of the experimental sites for allowing us to perform...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-064
... Rotary Coal Cutting Simulator (ARCCS), shown in Figure 1, was chosen as the prototype for the numerical model. This simulator has been used to conduct rock cutting experiments for 20 years at West Virginia University, and vast experimental data can be used directly to calibrate the numerical model. LS...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-049
... ABSTRACT ABSTRACT: Static stress vs. strain response and stress dependent P- and S-wave velocities have been measured in isotropic and uniaxial compaction experiments with uncemented glass beads. Discrete particle modeling reproduces within experimental uncertainty the experimental behavior...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-134
... ABSTRACT ABSTRACT: The potential development of a deep underground science laboratory offers unusual opportunities for inquiry and experimentation in the geosciences and in geoengineering. The completed facility will extend to ~2000m deep, and be available for multi-decade occupancy...

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