e8 - tunnel design with inroads - · pdf file2 why use rail track in tunnel design? bentley...
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Tunnel Design with Bentley InRoads Bentley Rail-Track
Thomas Taylor, Bentley
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Why use Rail Track in Tunnel design?
Bentley Rail Track provides specialized tools for rail geometry creation and data manipulation
• Turnouts and turnout connections• Rail regression tools• Rail Cant Editor• Tunnel Surface commands• 3D Modeling using the Roadway Designer
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Rail Track Tunnel Surface commands
• Laser scan random point cloud data input• Flatten Surface Transformation• Tunnel Cross Sections• Surface Depression Check• Cross Section Minimums and Maximums• Locate Critical Points
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Point Cloud Data• Import as DTM random Do Not Triangulate
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Data Transformation• “Flattens” and
transforms point data relative to H&V alignment and a tunnel typical section
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Tunnel Cross Sections• Specialized Cross Sections for computing
overcut and undercut volumes.
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Cross Section Minimum and Maximum
• Uses standard Cross Sections relative to the transformed alignment and surfaces for annotation
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Roadway Designer for Tunnel Modeling
• Uses standard Typical Section and Components for modeling.
• Specialized Template Point Constraints for “rigid body rotation”
• Cant is applied via point controls
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Roadway Designer for Tunnel Modeling
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Demonstration
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Conclusion
• Bentley Rail Track is used to create and analyze accurate 3D model content.
• Roadway Designer is used to create the proposed tunnel and displayed in cross section.
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Questions?