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Keywords: experiment
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-049
... is proportional to gap width (Zhou et al, 2007). The actual rock fracture surface has a degree of roughness and fluctuation. Through a lot of experiments, Barton, Witherspon et al (1980, 1985) corrected the fracture gap width based on the principle of equivalent of seepage flow. Zhou C.B. et al (2008) proposed...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-060
... method (XFEM). One possible research path to pursue in future might be using XFEM to reproduce the results of the experiments, hybrid FEM/DEM models and the models with cohesive elements. Another interesting research subject is further experimental examination of the role of heterogeneity...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-021
... a good applicability in deter- mining the feasibility of low-porosity rocks crack initiation. 2) The crack initiation can be determined by the LSR method without the acoustic emission experiments, Figure 8. The LSR method to determine the crack initiation. the LSR method simplifies the experimental pro...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-066
... Abstract The DECOVALEX Project (DEmonstration of COupled models and their VALidation against EXperiment) has been operating since 1992 with the objective of developing thermo-hydro-mechanical coupled computer modelling in order to provide the necessary support for the design of underground...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-028
... Thickness experiment experimental study propagation path original crack anti-wing crack crack propagation path Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 An experimental study...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-008
... Characterization Engineering experiment greenschist Upstream Oil & Gas compressive test biaxial compression increment structural geology loading stress level experimental investigation loading stress creep behavior compression stress level uniaxial compression bedding plane Rock...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-005
... since five years. Searching the Web-of-Knowledge provides 43 ISI publications on DECOVALEX (accessed on 21.03.2013) showing the deep scientific impact of this community project so far. All models are useless if they are not related to experimental work and data. Experiments dealing with THMC processes...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-144
... Abstract This paper mainly focuses on how to improve exploitation rate of coal bed methane (CBM) was presented in the paper. To enhance efficiency of exploitation of coal bed methane, the carbon dioxide or nitrogen gases were injected in the coal bed in the experiments. The injection...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-159
... et al. 2009). Based on the technique of induced caving, this study made use of the stress environment and mining space to realize induced caving and broke the caking ore (HU J.H. et al, 2007). 2 EXPERIMENTAL WORKS 2.1 Model Tongkeng mine consist of three ore body, namely the fine vein zone, 91...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-072
... of China, Xi an, P R China ABSTRACT: Physical simulation experiments offer a powerful method to explore influence of plastic flow, material failure and hybrid monitoring in a high and steep slope of open-pit mines composed with discontinuous rocks. We adopted an experimental setup using a stiff modular...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-131
... makes use of optical fibers as the light propagation medium, it could keep on visualizing the displacement of measuring points even if its front part is cut as needed during excavation. The paper presents some laboratory experiments to demonstrate the applicability of this scheme. By doing...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-016
... acoustic emission experiment uniaxial compression stress path Reservoir Characterization coal specimen general uniaxial compression AE count different stress path structural geology triaxial compression pressure reduction compression triaxial cylinder Upstream Oil & Gas AE...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-012
... ABSTRACT This paper reports the experiment of compressive process for siliceous-lime marble containing NaCl solution. Two electrodes of copper powder gelatin were fixed on the surface of siliceous- lime marble sample and by means of electric conductivity character of crack or pore water...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-172
... experimentation in the service of a broader future program on important science. Often some earth science and applied technology studies might not require extended occupancy for completion of the experimental program envisioned. Some experiments do not necessarily require the full facilities of various campuses...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-177
... and S tunnels at the 450-m level of the HRL. 3 TUNNEL EXCAVATIONS. Both the Q and S tunnels were excavated with the drill and blast method (D&B). The Q-tunnel was excavated in 2003. The tunnel was designed with an unusual shape, primarily because of an experimental need to concentrate ABSTRACT...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-030
... and the bi-materials specimens and studies how a center inclined crack in weak medium concrete can grow into strong medium marble by the experimental observation?finite element method calculation and theoretical analysis. 2 BI-MATERIALS FRACTURE EXPERIMENT 2.1 Specimen preparation In this paper as Figure 1...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-041
... and experiments were carried out on a fine-grained granite. Experimental data suggests that KIIC remains constant up to 150°C and increases at elevated temperature. Ultrasonic measurements, prior and after heating, provided a basis to link the development of thermally induced cracks to the data of KIIC...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-063
.... For the convenience of experimental data processing and the comparative analysis on stress, strain and thermal IRR, the start-recording moment as well as the recording rate of the thermal imaging system, the digital camera and the loading system was set to be the same, one data per second. 3 EXPERIMENT RESULTS 3.1...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-180
... of COupled Models and their VALidation against EXperiment) aims at developing the appropriate characterisation and modelling capability in the context of radioactive waste repository design plus the associated performance and safety assessments. The DECOVALEX Project has been in operation since 1992...

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