This subassembly lets you select both an existing ground surface and a rock surface as targets.
Depending on the position (above or below), the daylight will use varied slopes and ditching solutions. In fill and non-rock-cut conditions, this subassembly will behave the same as the BasicSideslopeCutDitch subassembly.
Attachment
The attachment point is at the inside edge of the ditch foreslope for cut conditions, and at the inside edge of the daylight link for fill conditions.
Input Parameters
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.
| Parameter | Description | Type | Default |
|---|---|---|---|
| Side | Specifies which side to place the subassembly | Left / Right | Right |
| Daylight Link | Includes or omits the Daylight link | Include / Omit | Include |
| Cut Slope | Slope of the daylight link for cut in Non Rock | Numeric, positive | 2 ( : 1) |
| Fill Slope | Slope of the daylight link for fill | Numeric, positive | 4 ( : 1) |
| Foreslope Slope | Slope of the ditch foreslope link (cut only) | Numeric, positive | 4 ( : 1) |
| Ditch Depth | Depth of Ditch | Numeric, positive |
1.2 m 4.0 ft |
| Bottom Width | Width of the bottom of ditch (zero for a V-shaped ditch) | Numeric, positive |
0.6 m 2.0 ft |
| Backslope Slope | Slope of the ditch backslope link (cut only) | Numeric, positive | 4 : 1 |
| Backslope Width | Width of the ditch backslope link (cut only) | Numeric, positive |
1.2 m 4.0 ft |
| Rock Cut1 Depth Limit | Height of first rock cut slope | Numeric positive |
3.0 m 9.0 ft |
| Rock Cut1 Slope | Slope of first Rock cut Segment | Numeric, positive | 4 (:1) |
| Rock Cut2 Slope | Slope of second rock cut segment | Numeric, positive | 1 (:1) |
| Existing Ground Stripping Width | Width of EG to strip at top of rock | Numeric, positive |
1.5 m 5.0 ft |
| Daylight link slope | Slope of link to EG | Numeric, positive | 2 (:1) |
| Place Lined Material | Specifies to place optional material lining along daylight links. You can choose All Links, Daylight Links, Fill Links Only, and None. | String | None |
| Slope Limit 1 | Specifies the slope limit until which the associated material lining is placed | Slope | 1 : 1 |
| Material 1 Thickness | Specifies the thickness of lined material. This thickness is measured perpendicular to the link. | Numeric, positive | 12 inches |
| Material 1 Name | Specifies the name of the material applies for lining along grading links | String | Rip Rap |
| Slope Limit 2 | Specifies the slope limit until which the associated material lining is placed | Slope | 2 : 1 |
| Material 2 Thickness | Specifies the thickness of lined material. This thickness is measured perpendicular to the link. | Numeric, positive | 6 inches |
| Material 2 Name | Specifies the name of the material applies for lining along grading links | String | Rip Rap |
| Slope Limit 3 | Specifies the slope limit until which the associated material lining is placed | Slope | 4 : 1 |
| Material 3 Thickness | Specifies the thickness of lined material. This thickness is measured perpendicular to the link. | Numeric, positive | 4 inches |
| Material 3 Name | Specifies the name of the material applies for lining along grading links | String | Seeded Grass |
Target Parameters
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 To Specify Corridor Targets.
| Parameter | Description | Status |
|---|---|---|
| Existing Ground Surface | Name of the existing ground surface for daylighting. The following object types can be used as targets for specifying this surface: surfaces. | Required |
| Rock Surface | Rock surface for rock cut. The following object types can be used as targets for specifying this surface: surfaces. | Optional |
Output Parameters
None.
Behavior
The attachment point is tested to determine if it is in cut or fill. If it is in fill, the fill daylight link is extended to the Existing Surface at the given Fill Slope.
If Point P1 or P2 are below the rock surface then the foreslope, ditch bottom, and backslope are added, the rock cut1 link is added at the height specified by Rock Cut1 Depth Limit. A second rock cut link is added until it reaches the rock surface at the Rock Cut 2 Slope. A stripped area is created as links are created that follow the rock surface for the specified buffer distance. Finally a daylight link to existing ground is inserted using the slope specified by the Daylight link Slope parameter.
If the daylight is not below the rock surface, the foreslope, ditch bottom, and backslope are added, and the cut daylight link is extended from the end of the backslope to the Daylight Surface at the given Cut Slope.
This subassembly optionally lets you add a lined material. The material thickness parameter (for example, Material 1 Thickness) is measured perpendicular to the link.You can specify three ranges of slopes. Material type 1 is applied if the slope of the links is up to the specified slope value. From slope 1 to slope 2, the second type of material applied. Similarly, if the slopes of links fall within slope 2 and slope 3 values, then material 3 is applied. If the link slopes are flatter than slope limit 3, then no material is applied.
If a lined material is added to the subassembly, then parallel links are added to the daylight links with specified thickness. This thickness parameter (for example, Material 1 Thickness) is measured perpendicular to the link. Bottom level links are coded with Datum and daylight links are coded with Top. Shapes enclosed by these materials are coded with material name.
In Civil 3D 2010 and previous versions, the Material Thickness parameter was measured vertically. In Civil 3D 2011 and later, this parameter is measured perpendicular to the link. Therefore, if you open a drawing containing these subassemblies that was created in Civil 3D 2010 or prior in Civil 3D 2011 or later, and then rebuild the corridor(s), this parameter will be changed to reflect the new behavior. Any volume reports that use this subassembly will be updated to reflect the new behavior.
Layout Mode Operation
In layout mode the subassembly will use the same layout behavior as the existing basicsideslopecutditch.
Point, Link, and Shape Codes
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.
| Point, Link, or Shape | Codes | Description |
|---|---|---|
| P1 | Hinge, Hinge_Fill | Fill condition only - hinge point for fill daylight link |
| P2 | Ditch_In, Daylight, Daylight_Fill | Cut condition only - inside edge of ditch Fill condition only - daylight point |
| P3 | Ditch_Out | Cut condition only - outside edge of ditch |
| P4 | Hinge_Cut | Cut condition only - hinge point for cut daylight link |
| P5-n | Daylight Daylight_Cut | Cut condition only - daylight point |
| L1 - n | Top, Datum | Unpaved finish grade |
| L1 | Top, Datum, Daylight, Daylight_Fill, Slope_Link (cut only) | Daylight link in fill |
| L2 | Ditch | Ditch Bottom |
| L3 | Slope_Link | Ditch Slope |
| L4-Ln | Top, Datum, Daylight, Daylight_Cut | Daylight links in cut |
Coding Diagram
The following coding diagram shows the codes in a cut situation, without a rock surface.
The following coding diagram shows the codes in a fill situation.
The following coding diagram shows the codes in a cut situation, with a rock surface.
