This subassembly creates a flat-bottom trench with equal sideslopes and up to three layers of backfill material.
The attachment point is at the Offset To Bottom distance above the midpoint of the base of the trench.
Note: All dimensions are in meters or feet unless otherwise noted. All slopes are in run-over-rise form (for example, 4 : 1) unless indicated as a percent slope with a “%” sign.
The elevation of the bottom of the trench is calculated as the profile grade line elevation minus the Offset To Bottom value. The horizontal trench bottom link is placed symmetrically about the attachment point offset at that elevation, and the sideslopes are extended upward to the Existing Surface. The horizontal Bedding link is placed at the given depth above the trench bottom. The horizontal Special Backfill link is placed at the given depth above the Bedding link.
This section lists the parameters in this subassembly that can be mapped to one or more target objects, such as a surface, alignment, or profile object in a drawing. For more information, see in the AutoCAD Civil 3D User’s Guide Help.
The following table lists the point, link, and shape codes for this subassembly that have codes assigned to them. Point, link, or shape codes for this subassembly that do not have codes assigned are not included in this table.
