RetainWallToLowSide

This subassembly inserts a retaining wall structure with one tapered side.

The wall is pushed to a side so that all of the footing is on the high fill side. This subassembly also adds an optional key at the bottom.

Attachment

The attachment point varies depending on whether the retaining wall is in cut condition or fill. If it is in fill, the attachment point is near the top of the retaining wall. The attachment point is near the footing if it is inserted in cut condition.

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	Specifes to insert the subassembly either on the right or the left side of the attachment point.	Left / Right	Right
Wall Top Width	Specifies the width of the wall at the top	Numeric	0.958 ft 0.292 m
Top Height	The distance between the top-of-the wall and the hook in fill or the new hook in cut.	Numeric	1.320 ft 0.40 m
Footing Cover	The depth of cover from the top-of-footing to the finish grade line on the back side of the wall in fill or to the hook when in cut.	Numeric	1.667 ft 0.50 m
Key	Species to add an optional key below the footing	Boolean	Yes

Wall height is determined from top of the footing to attachment point of ground elevation on the vertical face, whichever is higher. Wall battered slope, width of the footing, optional key dimensions, and the location of the key center, are all functions of the wall height.

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
Wall Height	May be used to override the fixed wall height and tie to a profile. The following object types can be used as targets for specifying this elevation: profiles, 3D polylines, feature lines, or survey figures.	Optional
Target Surface	Existing ground surface name to determine retaining wall in cut or fill. The following object types can be used as targets for specifying this surfaces: surfaces.	Required

Output Parameters

None.

Behavior

This subassembly can be inserted on either left or right sides. The attachment point is different for the fill or cut condition. In fill, the attachment point is assumed to be where the finish grade intersects the inside face of the wall, below the top of the wall, at a distance equal to the Top Height parameter. In cut, the attachment point is assumed to be where the finish grade intersects the inside face, above the top-of-footing, at a distance equal to the Footing Cover parameter. The wall height is determined from the Wall Height or Profile input. In fill, the sloping wall face is toward the center of the roadway. In cut, the sloping wall face is away from the roadway, towards the earth being retained. If the Key option is set to No, then the base of the footing is a single horizontal link. If the Key option is used, links to define the optional key are inserted.

Layout Mode Operation

In layout mode, the subassembly draws the retaining wall shape as specified by the input parameter values, assuming that the subassembly is in a fill condition.

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	Codes	Description
P1	RW_Front
P2	RW_Top
P3	RW_Back
P14	RW_Hinge
P12	RW_Inside	Could be used as breaklines in building datum surface
P5	RW_Outside	Could be used as breaklines in building datum surface
L1, L2, L3	Top, Wall	L1=P1 to P2; L2= P2 to P3; L3 = P3 to P14;
L4,L5,L6	Footing_Bottom	L4 = P6 to P7; L5 = P8 to P9; L6 = 10 to 11;
S1	RWall

Coding Diagram

Fill Condition

Cut Condition