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Rapid Drawdown Analysis by Effective Stress Or 8 Total Stress (Duncan) Methods Unsaturated Slopes and Climatic Coupling 9 Visualization of Results 10 Introduction

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Rapid Drawdown Analysis by Effective Stress Or 8 Total Stress (Duncan) Methods Unsaturated Slopes and Climatic Coupling 9 Visualization of Results 10 Introduction CONTENTS Introduction 3 User friendly 3D interface 4 Supported geometry paradigms 5 Solution engine 6 True 3D analysis of anchors / supports 7 Rapid drawdown analysis by effective stress or 8 total stress (Duncan) methods Unsaturated slopes and climatic coupling 9 Visualization of results 10 INTRODUCTION SoilVision Systems Ltd. is proud to announce the release of the SVSLOPE-3D slope stability software package. The package represents a blend of classic method of columns analysis methods with a comprehensive 3D CAD-based graphical environment for full 3D model creation as well as 2D and 3D visualization of results. The software extends current analysis capabilities with the implementation of 3D effective stress or total stress rapid draw-down analysis, comprehensive 3D anchor/reinforcement and distributed and point-load analysis as well as unsaturated slopes analysis. The software is the results of many years of effort by a world-class team of slope stability and software experts. The sophisticated new software is fully integrated with existing SVFLUX and SVSOLID software packages and includes a sleek and simple user interface with state-of-the-art graphical representation of results. 3. USER FRIENDLY 3D INTERFACE The user interface on the new package is designed to allow the user to quickly create models accurately and efficiently. Compliance with standard methods of user interface design allows convenient access to software commands through toolbars or right-click menus. Standard CAD-type functionality is available with grid, snapping, and object snapping features. The menu system is laid out in a logical left-to-right and top-top bottom package. In other words, if the user proceeds in a logical manner through the menu system they will be guided naturally through the model creation process. Creation of 3D models is consistent with existing standards used in the SVFLUX and all other 3D model creation programs currently available in the SVOffice 2009 geotechnical software suite. 4. SUPPORTED GEOMETRY PARADIGMS The geometry paradigm in SVSlope 3D allows the creation of geo-strata as stacked surfaces which form layers. Surface intersections and layer pinch-outs may be represented in the geometry. Surfaces may also be formed by grids or as a series of interlocking planes. Interlocking plane surfaces may be used to represent engineered structures and their intersection with geo-strata. The geometry paradigm in SVSlope 3D is supported in all of our 3D packages. Therefore the same model can be flipped from SVSlope 3D to SVFlux 3D, SVSolid 3D, or any of our other packages for further analysis. The user may also easily create 3D models based on extrusions from any 2D models currently existing in our software. 5. SOLUTION ENGINE The SVSlope 3D solution engine was developed entirely by the engineers at SoilVision Systems Ltd. under the guidance of world-class experts in slope stability analysis. The solution engine has been refined to be very robust and fast. Also, a host of benchmark problems have proven the accuracy of the solver. Almost all of the existing 2D limit equilibrium solution methods (i.e. Bishops, GLE, Spencer, Morgenstern-Price) have been implemented in the 3D solver. All the methods of handling inter- slice force functions have also been implemented in 3D. All 14 soil strength models currently supported in the 2D package are also supported in the 3D software. 6. 3D ANALYSIS OF ANCHORS Anchors or reinforcements have typically been represented in 2D packages in a pseudo-3D fashion because any anchor in 2D is inherently a plate in a 3D analysis. SVSlope 3D allows true 3D analysis of anchor or reinforcement systems. Single anchors or groups of anchors can be entered as penetrating multiple soil layers at any angle. The same types of anchors supported in SVSlope 2D are also supported in the 3D package. SUPPORT ANCHOR TYPES: • End Anchored • Geo Textile • Grouted Tieback • Grouted Tieback (with friction) • Micro-Pile • Soil Nail • Soil Nail - Hong Kong Practice • User-Defined 7. RAPID DRAWDOWN ANALYSIS Rapid drawdown analysis is critical for the evaluation of stability of earth dams and levees. There are currently effective stress and total stress (Duncan) methods for performing this type of analysis. The effective stress method may be performed through coupling with the SVFlux seepage modeling software. For example, the rapid drawdown of a 3D intersection of levees can be simulated in SVFlux. Then the pore-water pressures at multiple time increments can be analyzed in the SVSlope 3D package to calculate the stability of the levee intersection as a function of time. The total-stress Duncan three stage method has been implemented in the software as well with the exception that the method has now been extended to consider a three-dimensional analysis. 8. UNSATURATED SLOPES AND CLIMATIC COUPLING The software is ideally suited for unsaturated analysis and potential failures in the vadose zone. SVSlope 3D and SVFlux 3D are able to model a fully combined slope stability and climatic-coupled model in a single combined numerical model. This ensures that model building and solution is a simple process and easily accomplished in a reasonable time. SVSlope is the only slope stability software available with four methods of assessing unsaturated shear strength. 9. VISUALIZATION OF RESULTS The AcuMesh back-end of the SVSlope 3D software package provides a suite of tools for detailed and high-quality visualization of results. The results can be viewed as a full three- dimensional presentation or as slices in the X, Y, or Z direction. 3D view of pore-water pressures 2D slice of the result 10. .
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