CI4678 Tunnel design using AutoCAD ® Civil 3D ® Tomáš Lendvorský AEC Solution Engineer - CHS Countries Roland Klement AEC Solution Engineer – Central Europe

Where do I come from?

Where do I come from? Tugenden – virtues Gewohnheiten – habits

Interesting facts Did you know? The World's oldest underwater tunnel is rumored to be the Terelek kaya tunnel under Kizil river, in Turkey, estimated to be built more than 2000 years ago (possibly 5000) The Delaware Aqueduct in New York is the longest tunnel, of any type, in the world at 137 km (85 mi), drilled through solid rock The Seikan Tunnel in Japan is the longest undersea rail tunnel in the world at 53.9 km (33.5 mi), of which 23.3 km (14.5 mi) is under the sea (source – www.wikipedia.com)

Alignment Alignment Creation Tools Fix, Floating, Free entities Create offset Alignments offset for Acad primitives Export to LandXML, exchange settings

Profile Profile Creation Tools Create Master Alignment Profile view Design profile Create Superimposed Profile

Geological layers Geologists supplied written profile of each GL Create Profile from file Use Data Shortcuts Create auxiliary Corridor

Data Shortcuts Auxiliary objects – Corridor, Surface - will be created in separate drawings Reduces drawing size Keeps dynamic connection

Geological layers Borehole data available Borehole importer: - import borehole data and create surfaces Possibility to create GL, passing GL info and following EG Create surface from borehole data at Existing surface elevation (Top) Create GL surface from borehole data (Geolog) Create TIN Volume surface: Base surface=Geolog, Comparison surface=Top Copy TIN Volume Surface to new surface (Diff) Create TIN volume surface: Base surface=Diff, Comparison surface=EG

Subassembly From polyline Create assembly Create subassembly from polyline Add Codes for Top and Bottom of the tunnel Codes Set style (import codes define styles)

Subassembly Subassembly Composer Recreate geometry in SAC Dynamic Subassembly

Corridor Create Corridor Edit station range Create Corridor Surfaces Drive on alignment Correct corridor - Overhang Correction and Add as Breakline

Sample Lines and Section Views

Volumetric Calculation Define different Materials Use Subcriteria Material Volume Table

Intersection of Tunnel and EG Intersection of Tunnel and EG (portal) Minimum Distance between Surfaces Daylight 3D Polyline of both side of the tunnel Top and Bottom surface

Construction pit Different methods to create pit Define pit bottom elevations Create Feature line Surface Label Grading Creation Tools

Method 1 From bottom Obtuse angle – rounded shape Sharp angle – sharp shape

Method 2 From top Obtuse angle – sharp corner Sharp angle – obtue corner

Method 3 Grading separatly each line Explode Acad command Chamfer All corners sharp

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