1.  2004-2011 ITC Software All rights reserved. ITC Software ENVIRONMENTAL ENGINEERING SOFTWARE PAK-P and PAK-C Projects 2001-2004 - Serbia and Montenegro DEVELOPMENT OF THE “TILVA ROSH” MINE Steinbeis Transfer Center for Biomedical Research Ltd. Kragujevac, University of Kragujevac, and the Institute for Water Resources “Jaroslav Cerni”, Belgrade Go to www.itcsoftware.com for further finite element projects and applicationswww.itcsoftware.com

2. EXAMPLE APPLICATIONS IN GEOMECHANICS DEVELOPMENT OF THE “PRVONEK” DAM EXPLOITATION of the "TILVA ROSH" Mine UNDERGROUND POLLUTION PROBLEMS Download further geomechanical project presentations: at www.itcsoftware.comwww.itcsoftware.com

3. ENVIRONMENTAL ENGINEERING SOFTWARE BASIC SOFTWARE APPLICATIONS IN GEOMECHANICS

4. PAK-P A Finite Element 2D and 3D Program for Analysis of Groundwater Seepage  Linear and nonlinear analysis: steady, time-dependent problems  Saturated/unsaturated flow  Position of free surface  Boundary conditions: prescribed head, pressure, seepage face  Infiltration: special treatment of rain

5.  Special algorithm for nodes at seepage face  Material characteristics: Variable conductivity for unsaturated soil region  Seepage forces: Calculation of nodal forces due to fluid flow, generated in the format for FE structure program

6. PAK-C Finite Element Program For Coupled Problems – Multiphase Fluid Flow with Heat Transfer Through Porous Deformable Medium  Linear and Geometrically and Materially Analysis, Linear and nonlinear solid, stationary and nonstationary, compressible and incompressible fluid  Static and Dynamic Analysis  Material Characteristics: Variation of porosity, elastic and elastoplastic consolidation, elastic, elastoplastic Cam-clay, thermoelastic material models, modelling of subsidence  Heat transfer and fluid flow  Multiphase flow

7. Stress and Strain Behaviour of Rocky Mass-Land during the Exploitation of the "TILVA ROSH" Mine

9. Instability Zones

10. Surface instability zones

11. Instability Zones

12. Effective Stress Distribution

13. Development of Instability Zones

14. ITC Software is an advanced information technology solutions provider, focused on the global commercial and scientific markets. With over 4047 software engineers in the Americas, Europe, Russia and Asia, and a host of world-renowned scientists at, inter alia, Harvard and MIT, ITC Software’s services range from research & development in finance, bioinformatics and FEA engineering, to cutting- edge custom software development and maintenance services in most industry verticals, to the turnkey establishment of Offshore IT Centers. ITC Software has won numerous international awards and its centers are ISO 9001:2000 certified and CMMI level 4 pre-certified. Pricing is extremely competitive for both complex scientific applications such as bioinformatics and biomechanics, and commercial software development projects. Please call or email us, if you have any questions, need more information, would like to embark on a research project, or require software development services Tel. +1 978 287 4855 info@itcsoftware.com Become a high performance enterprise with Strategic Outsourcing, visit www.itcsoftware.com www.itcsoftware.com Thank you!

15. ITC Software We hope you enjoyed our presentation ! For more information on finite software solutions, finite element applications, and/or assistance with your industrial design and engineering projects, please visit our website: www.itcsoftware.com or contact:www.itcsoftware.com Prof. Kojic and Prof. Filipovic ITC Software 20 Carpenters Brook Road Greenwich, Connecticut 06831, USA Tel.: 978 287 4855 info@itcsoftware.com