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Keywords: finite element method
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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-101
... displacement increases if the dynamic fric- tion angle is considered during slip. Therefore, the computed sliding displacement is closed to the mea- sured displacement if the dynamic friction angle is considered. 3.2 Simulation by finite element method The shaking table test result is simulated by a finite...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-109
... failure mechanisms is essential to ensure stability. In this paper, stability analyses of a 75-year-old masonry-lined Turkish State Railway Tunnel and the stratified rock slope above the tunnel following the road cut excavation are presented. Finite Element Method is used to evaluate the stability of this...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-083
... utilization. In the presented model, the first level of the mining tunnel is designed by finite element method in the horizon of 2300 m and the last level in the horizon of 2240 m. Hence, the instability radius on surface facilities will be great. According to analysis done by finite element method, the...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-124
... material finite element method flow in porous media fracture density effective transport property permeability CCM model aspect ratio matrix percolation threshold mechanics ABSTRACT: In the paper, two modeling strategies for the computation of the effective permeability of heterogeneous...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-193
... Computation excavation deformation vector finite element method rock bolt cement grout Aydan element ABSTRACT: Rock bolts as construction elements are often used in underground civil engineering projects. We used Aydan finite elements for numerical description of rock bolt reinforcement and...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-170
... & Gas Rock mechanics elastic displacement finite element method construction displacement tunnel construction total displacement tunnel deformation calculation vault excavation Zhoujiazui tunnel finite element model mechanics Rock Engineering and Rock Mechanics: Structures in and on...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-234
... preferential flow channels within the geological formation. The numerical approach proposed in this paper is a fully coupled hydro-mechanical model in saturated conditions involving single-phase flow both in fractures and the porous matrix. The extended finite element method (XFEM) is employed to model...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-019
... difficulties, it's better to use straight notch core specimen under impact. Explanation of dynamic crack propagation by numeric analyses is limited. Among numeric methods, extended finite element method is an effective way to study dynamic fracturing. This study used the X-FEM software (ABAQUS) to create a 3D...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-102
... slope is the very often solved problem in the geotechnical practice. For the solution of such problem there can be used many computational methods based on limit equilibrium methods (LEQM) or numerical methods (for example finite element method (FEM)), which more or less reflect the various factors...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-133
... ABSTRACT: The case of controlled bench failure on the open-pit is considered. An approach to rock slope stability analysis using finite element method and modeling on equivalent materials is offered. Critical deformation parameters for rock mass and the form of sliding surface are determined...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-006
... has a wide rage of values. The difference in mechanical properties sets a limit of accuracy of analysis. The finite element method was applied for forecasting the stress state of rock mass near the mined out spaces during development of mining works. FINITE ELEMENT MODEL The results of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-061
... the system V" is analogous to the transport in the porous media environment. . There is an important point of the choice ofnumer- real method. We consider the finite element method, which is suited for complex unstructured meshes. Mixed methods are known to approximate accurately the velocity field...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-117
... show that the method is effective and accurate in 3D problems. INSTRUCTION Thus far finite element method has reached a high degree of effectiveness in structure failure analysis. However some problems appeared in its application, among which the following are the most remarkable Ones. (1) Pre...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-070
...STABILITY ANALYSIS FOR THE OXIDIZED ORE STOPE OF SONGSHUJIAO TIN MINE WITH FINITE ELEMENT METHOD YD, XIANBIN Kunming University of Science and Technology, Kunming, P.R.CHINA, xianbin@ist.utl.pt DINIS DA GAMA, CARLOS I.S.T., Lisboa, PORTUGAL, dgama@ist.utl.pt ABSTRACT Stability analyses were...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-161
... possible dilatancy inside the rock mass, which could affect its tightness. Upstream Oil & Gas surface subsidence procedure France subsidence single cavity cavity Artificial Intelligence numerical method application evolution finite element method Fluid Dynamics boundary Tersanne...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-080
... benches (Fig.2). Fig. 3 shows three-cross sections of the failed slope. strength back analysis coal seam finite element method Engineering stability analysis Displacement response configuration lignite seam Thickness charbon safety factor metals & mining axial stress seam...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-105
... shown. In the following we will briefly review the state of practical applications of numerical simulation in tunnelling. Next we will examine the use of two of the main methods of simulation, namely, the Finite Element Method (F.E.M.) and the Boundary Element Method (B.E.M.). 2 CURRENT STATE OF...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-017
.... Thirdly, by use of these parameters in future, reliability analysis of finite element method can predict the stability in probability values. Lastly, a practical coal mine roadway example shows that the proposed method is a good one. RÉSUMÉ: En ingenierie des roches, la prevision des carasteristiques...

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