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Keywords: frequency
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Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-092
... Wellbore Design paulatto borehole Reservoir Characterization Upstream Oil & Gas criteria evaluation permeability test fracture flow in porous media Fluid Dynamics sune carstensen procedia engineering 191 Copenhagen Limestone upper copenhagen limestone hydraulic fracturing frequency...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-064
... existence of the strong relation between PPV and damage to structures has been well established. Besides PPV, the frequency is one of the most important factors controlling the response of structures. This paper presents a case history of Olympic Stadium renovation in Helsinki, Finland with a focus on...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-008
... a discontinuous approach must be utilized. This approach can be extended to masonry structures, so as to find by means of numerical analysis the peak ground acceleration and frequency at which the historic monument is most vulnerable and to predict the anticipated failure modes. The numerical...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-105
... topography. The rock slope is subjected to several harmonic signals with variable frequency and amplitude, and the slope response is evaluated. 1 INTRODUCTION Subduction of the Nazca plate under the South American plate is responsible of numerous earthquakes due to the stress accumulation and relief...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-129
... represent site effect around them. The results of FFT analyses showed that natural frequency from field measurement ranges between 5 Hz and 10 Hz. The authors first clarify the frequency characteristics of the quarries with continuous monitoring. Then, the authors consider the influence to seismic wave on 2...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-159
... stability of the rock bolt. Accordingly, authors developed the system device using ultrasonic waves with different frequency levels, which can detect and display small reflective signals in order to evaluate the extent of mortar filling. In this paper, a basic idea to evaluate the mortar filling quality is...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-205
... risk management frequency rock slab Upstream Oil & Gas subway station urban environment diaphragm wall concrete diaphragm wall ground transportation Densely alah station diameter executive schedule hydraulic rock breaker air impact control rail transportation strut criteria...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-199
... presented in this work. The spectral content of seismic noise systematically highlighted clear energy peaks on the unstable sector, interpreted as resonant frequencies of the investigated volume. Ground motion at these frequencies was found to be controlled by the main fractures observed at the site and...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-181
... carried out, which includes the influences of fault stiffness, the incident angle and the frequency of incident waves on the peak particle velocities (PPV) of the ground motions. 1 INTRODUCTION The blast-induced wave propagation across rock masses has a great influence on the design and construction of...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-148
... show the potential of applying the two continuum based models, some results are presented. Upstream Oil & Gas CEL application chi-chi earthquake Eulerian material Engineering MPM frequency increment rock landslide Material Point Method landslide contact algorithm Earthquake...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-184
... et al. 2012). Studies have shown a good correlation between the landslides density and the areas of strongest ground motion, while their frequency declines on moving away from the epicenter (Meunier et al. 2007). Sepulveda et al. (2005) studied the rock slope failure due to topographic amplification...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-131
... on carbide metal and polycrystalline diamond cutting tools with geometrically defined cutting edges. The ultrasonic frequency was maintained at 20 kHz. Different oscillation amplitudes up to 25 µm were applied to reduce process forces in comparison to the conventional machining. The observation and...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-007
... Abstract Dynamic moduli of rocks are higher than their static moduli. The difference is attributed to different frequencies, strain and stress amplitudes when conducting static and dynamic testing. Cyclic compressive strength tests have been executed with frequencies 0.0125 Hz to 20 Hz...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-158
... equations to determine the energy decay rate, and d) determine the frequency range generated by rockfalls. Artificial Intelligence attenuation frequency range evaluation machine learning frequency experiment dominant frequency Upstream Oil & Gas impact energy Huang Reservoir...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-156
... composed of numerous alternating movements with different frequencies and amplitudes move in cycles (Sashourin 2001). Upstream Oil & Gas kazchrome donskoy ore mining Reservoir Characterization frequency movement process metals & mining structural geology displacement amplitude...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-246
... hydrogeological anisotropy of rock mass are the key elements in order to define an appropriate monitoring program. The application of new nanotechnologies in the geotechnical and rock mechanic fields has increased the amount of acquired information both in space and frequency. Along with the awaited introduction...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-018
...:) involved in the distinct techniques. Other authors (Kolesnikov, 2009, Ciccotti & Mulargia, 2004) consider that the static test is a dynamic test at a very low frequency, and they highlight the nonlinear elastic response to different associated frequencies (f).Kolesnikov (2009) uses the Kjartansson...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-129
... blocks made up of four families of joints and the surface of the gallery, both the problems of identification and support have also been studied in considerable depth and solutions found (González et al. 2005). frequency information operation rock mass metals & mining wavelength...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-006
..., particle swarm algorithms or the Fuzzy logic theory based methods. Of great importance is multi-objective optimization, where an optimum is searched not only for one parameter or function, but for several and sometimes also contradictionary objective functions (Pareto- Optimization). frequency...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-113
... Oil & Gas vibration intensity wave amplitude sarsby frequency Earthquake quality factor construction attenuation unifying energetic approach Magnitude propagation means vibration magnitude scale ground vibration intensity Rock Mechanics for Resources, Energy and Environment...

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