Bentley Subsurface Utility Engineering & Design
Kevin Jackson, Bentley Systems
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What is Bentley Subsurface Utility
Engineering?
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What is Bentley Subsurface Utility Engineering?
Subsurface Utility
Engineering Tools
+
OpenRoads
Bentley Subsurface Utility Engineering
3D modeling of all underground utilities
Including gravity networks
Clash Detection
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Utility Feature Definitions
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Feature Definitions
• Stored (usually) in DGNLIB
• Two new types (Conduit and Node)
• Specifically defines function (Comm, Electric, Gas, Petrol, Storm Water,
Thermal, Waste Water, Water)
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Feature Definitions Define Presentation
• Work similar to road/site/terrain
feature definitions
• Link to element templates for
symbology
• Utility nodes require two 3D
templates.
• Cells are used very heavily in
the element templates.
– 2D cells for plan
– 3D cells for 3D model
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Conduit Feature Defintions
• Define shape of the conduit
• Includes a table of size to reduce maintenance effort.
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Node Feature Definitions
• Has 2 element templates (cells) to
define 3D. One points to a top element
template and one for the bottom.
• Has 1 element template (cell) to define
2D plan shape.
3D
2D
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Import Drainage Networks
GEOPAK Drainage, InRoads S&S, MX Drainage
StormCAD, CivilStorm, SewerCAD, SewerGEMS
WaterCAD, WaterGEMS
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Import from Other Formats
• Import from:
– GEOPAK Drainage
– InRoads S&S
– MX Drainage
• The following products by way of SHP file
•
•
•
•
•
•
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StormCAD
CivilStorm
SewerCAD
SewerGEMS
WaterCAD
WaterGEMS
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Importing from Other Applications
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Create and Edit Features
Node and Link Networks such as Storm/Sanitary
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Place Node and Place Link
• Place Node command allows creation of new
nodes
• Place Link command creates conduits between
nodes
• Feature Definition to describe presentation and
function.
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Editing Subsurface Utility Data
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Editing Subsurface Utility Data
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Create New Node and Link Features
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Editing
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Creating New Features
Extract Utility from Graphics Using
Selection Set Method
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Extract Utility From Graphics Command
• Modeled after the Terrain Model
from Graphics command.
• Uses graphics from any source.
• Elevations from terrain model or
from 3D element.
– Terrain Model – graphic is draped
at specified depth
– Element – if the graphic is 3D then
user has option of using the
elevations of the graphic vertices
plus optional vertical offset.
• Use selection set or pick during
command prompts
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Extract from Graphics (2D)
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Creating New Features
Extract Utility from Graphics
Using Utility Filter Method
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Utility Filter Manager
• New Utility Filter type similar to Terrain Filters.
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Proposed Utility With Trench
Extract Utility From Graphics Command
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Utility with Trench
• Common use cases:
– Relocation of utilities.
– Modeling of pipe trench for
quantities.
– Define a soft clash envelope
• Use selection or filter
method
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Trench Template in the Feature Definition
• Conduit Feature Definitions include a property for trench template.
• Which is an OpenRoads corridor design template
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Proposed Utility With Trench
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Model Builder
Link to External Data Sources
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Model Builder
• Connects to any data source, including:
–
–
–
–
SHP
XLS
TXT, CSV
Oracle Spatial
• Geospatial sources are preferred.
• Creates 2 way link for import, export and update
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Why Are Geospatial Sources Preferred ?
• Geospatial data sources (such as SHP or Oracle Spatial) are
preferred because they contain X,Y,Z coordinates on all vertices in
addition to node connectivity information.
• Without this geospatial data, you must break line strings into simple
lines to maintain fidelity in data.
– Of course, some data (such as gravity networks) are innately single line
connections.
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Model Builder
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Conflict Detection
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Conflict Detection
• Uses same engine as Bentley Navigator Clash Detection.
• Interface is similar.
• Adds new capabilities targeted at OpenRoads Utilities workflows.
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Conflict Detection Between Utilities
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