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Pipeline Design: Introduction

Introduction

Gemini Terrain includes a dedicated module for outdoor pipeline (water and wastewater) design.

Pipeline data types are added using the Data Linked to Line Definition command. The SFI model serves as the storage format for these data types.

The trench's long section is generated according to the SFI model's Horizontal Curvature (line definition). For pipeline design, this will be one of the pipes in the trench.

The basis for pipeline design is a 3D model of the terrain and the existing pipeline network for the area. A complete network structure with exact topology is not created; instead, a simple sequence of manholes and pipes is documented along a long section. A network of pipeline runs is established by creating several SFI models.

Each pipeline run receives its own entry in the drawing's command list:

  1. LinedefData(PipelineRunAB.sfi)
  2. LinedefData(PipelineRunBC.sfi)
  3. LinedefData(PipelineRunCD.sfi)
  4. etc.

Design Methods

In Gemini Terrain, you can design pipelines using two different methods:

  1. Exact 3D Design (default)
  2. Simple design with manhole groups

When you start the design process, you must first create an SFI model, regardless of the method.

Instructions

  1. Activate the Models tab.
  2. Right-click on SFI models and select Create...
  3. Optionally select a template, enter the name of the pipeline run, and click OK in the dialog.
  4. Click OK to close the main SFI model dialog.
  5. Press [Esc] to finish editing the line definition.

Once the SFI model is created, you can add data types using the line definition data command. This will vary depending on the method and is described in more detail in the relevant section.

Note

The program does not have functionality for manhole sketches, but you can use general DDS CAD functions to create detail drawings.

See Also

See also the example collection for guidance: