Quantify This... Using Civil 3D

Autodesk Civil 3D Quantify This.......Using Civil 3D

Darian Klare S5-4

Course Summary:

Have a need to extract quantity take-offs? Are you having a tough time keeping up with the numbers as your design goes through countless iterations? Want to take back control of your cost estimates? Now you can use all of the tools that exist in the Civil 3D dynamic modeling environment. This session will "Lift the Hood" on how Civil 3D can be leveraged to quantify construction materials and earthwork calculations. - Earthwork Volumes using different methods - Adjusting Cut and Fill volumes using expansion and contraction values - Generating a Cut and Fill Maps - Corridor Volumes for both Earthwork and Select Materials - Pipe Network quantities - Pipe Trench Volumes using Assemblies - Reporting Manager Topics: Volumes Calculations Corridor Volumes Creating Mass Haul Diagrams Reporting Manager

Instructor: Mr. Klare is a Civil Engineering Technical Specialist for U.S. CAD with over 9 years experience in the Civil Engineering industry. Prior to joining the reseller channel, he was a drafter, designer, and CAD Manager with industry experience in flood and geotechnical mapping, as well as residential and commercial site design. Mr. Klare is an Autodesk Certified Instructor and an Autodesk Civil 3D Implementation Certified Expert with expertise in the Autodesk Vault data management solution having implemented Vault with several AEC firms and Government agencies. He regularly conducts seminars on the use of Autodesk technology in civil engineering and provides implementation services, customization, training, and support to civil engineering professionals on AutoCAD, AutoCAD Civil for Surveyors, AutoCAD Civil 3D, AutoCAD Map 3D and Navisworks.

U.S. CAD www.uscad.com ? www.uscadbim.com Copyright © U.S. CAD: CAD Camp 2009

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U.S. CAD www.uscad.com ? www.uscadbim.com

Introduction to Civil 3D Quantities Civil 3D has the ability to quickly calculate not only quantities of cut/fill, but also the quantities of materials to be estimated such as concrete, bituminous asphalt, crushed gravel, aggregate base, and many more! The ability to quantify vo lumes of design surfaces is often times an iterative process to minimize the material needed or removed to balance the site and Civil 3D will allow you to make several entries to compare and discover the most cost effective solution for your site. Additionally, we can run these same comparisons to generate a composite surface to quickly run an elevation analysis and to generate a cut/fill map. Now we will explore all of these capabilities in depth and help you to minimize your pay dirt!


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Civil 3D Quantities Use ‘Surface à Utilities’ to query composite and bounded volume differences between surfaces.

Composite volumes use top and bottom surfaces (a surface pair) to establish cut, fill, and net volume values. Bounded volumes use an existing AutoCAD object (for example, a polyline or polygon) to calculate the cut, fill, and net volume for the area bounded by the object.

A TIN volume surface is a composite of points in a base surface and comparison surface.

A TIN volume surface provides an exact difference between the base and comparison surfaces. Therefore, the Z value of any point in the volume surface is precisely the difference between the Z of the comparison surface at that point and the base surface at that point. This is true whether the comparison and base surfaces are both grid or TIN, or one of each.

A volume surface is a persistent surface object. Therefore, you can display cut and fill contours, cut and fill points, and add labels to it. A volume (cut, fill, net) of a volume surface is a property that can be viewed by selecting Surface Properties.

If you want only to query and obtain information about a surface volume or bounded vo lume, use the Volumes and Bounded Volumes utilities.


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To calculate composite surface volumes

1. Open, create, or import the TIN or Grid surfaces for which you want to measure the composite volume. For more information, see Creating Surfaces.

Note: The Composite Volume utility compares two surfaces (surface pairs), so you must have two surfaces available in your drawing.

2. On the Analyze Tab, Volumes and Materials Panel Volumes.

3. Do one of the following:

In the Composite Volume vista, click and select the surfaces to compare by clicking the <select surface> entry from the Base Surface and Comparison Surface columns (for the base and comparison surfaces respectively).


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From the Composite Volume dialog box, click . You are prompted to graphically select both the base and comparison surfaces from the drawing area. After the surfaces are selected, the volumes are calculated and the following types of information are displayed:

Cut The amount of material to be removed.

Fill. The amount of material that has to be added.

Net. The difference between the cut and the fill. For example, if a volume is 200cy. of cut and 100cy. of fill, the net is 100cy. <cut>.

Net Graph. A graphical percentage representation of the whole volume. A fill net is displayed as a green bar indicating that material needs to be added to the project site. A cut net is displayed as a red bar, indicating that material must be removed.

Surface Volumes: Panorama Vista Method

Use surface utilities to query composite and bounded volume differences between surfaces.

Composite volumes use top and bottom surfaces (a surface pair) (STRADA METHOD) to establish cut, fill, and net volume values.


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Bounded volumes use an existing AutoCAD object (for example, a polyline or polygon) to calculate the cut, fill, and net volume for the area bounded by the object.

1. Surfaces > Utilities > Volumes… 2. Add Surface Entry 3. Select Base Surface 4. Select Comparison Surface 5. Adjust Cut and Fill Factors 6. Review Results

Surface Volumes: Create Volume Surface Method

A TIN volume surface is a composite of points in a base surface and comparison surface.

A TIN volume surface provides an exact difference between the base and comparison surfaces. Therefore, the Z-value of any point in the volume surface is precisely the difference between the Z of the comparison surface at that point and the base surface at that point. This is true whether the comparison and base surfaces are both grid or TIN surfaces, or one of each.


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A volume surface is a persistent surface object. Therefore, you can display cut and fill contours, cut and fill points, and add labels to it. You can view volume properties (cut, fill, net) of a volume surface by selecting Surface Properties.

1. Create Surface > Select Type = TIN Volume Surface 2. Name = Volume1 3. Describe = Comparison Volume Surface 4. Select Style = Elevation Banding (2D) 5. Select Base Surface 6. Select Comparison Surface 7. Adjust Cut and Fill Factors 8. Review Results


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Volume Note: The following properties are displayed for volume surfaces.

Base Surface

Displays the name of the base surface from which the volume surface is generated.

Comparison Surface

Displays the name of the comparison surface from which the volume surface is generated.

Cut volume (unadjusted) Displays the total cut volume for the surface, without a cut factor applied.

Fill volume (unadjusted) The total fill volume for the surface, without a fill factor applied.

Net volume (unadjusted)

The difference between the cut and fill volumes.


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Volume Surfaces: Themed Cut/Fill Elevation Study

1. Surface Properties > Analysis Tab > Analysis Type = Elevations 2. Ranges > Number of Ranges = 6 3. Adjust Ranges = (per image) 4. Select “OK”

ü Make sure that the Surface Style is set to display ELEVATIONS


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Grading Volume tools: Adjust design Cut and Fill

Use volume tools to display and adjust the elevation of a grading design and optimize the cut and fill requirements.

You can change the elevation of either an entire grading group or a selection of grading objects.

A dynamic surface must exist for the grading group and a Volume Base Surface must be specified in the Grading Group Properties to use most of the Grading Volume Tools. Tip: If you are designing a detention pond and want to size it by volume, it may help to create a temporary surface to use as the Volume Base Surface for comparison. To do this, draw a polyline around the pond rim, assign it the rim elevation, and add it as breakline data to a surface. When you use such a sur face as the Volume Base Surface for the grading group, you can more easily see how much volume the pond can contain.

To adjust cut and fill volumes


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1. Click

2. In the Grading Volume Tools, click .

3. In the Select Grading Group dialog box, select a grading group or create a new one.

4. Optionally, click to review and change properties for the grading group.

a. Note: If you do not see the information displayed in the Cut, Fill, and Net volumes boxes, check the Grading Group Properties to ensure Automatic Surface Creation is selected and a Volume Base Surface is specified.

5. Select either Entire Group or Selection to identify the grading objects for which you want to

raise or lower to make the volume adjustments. For Selection, click and select objects in the drawing.

6. In the numeric field in the upper right of the Grading Volume Tools, enter the distance (typically feet or meters) by which the grading objects will be raised or lowered for each elevation adjustment.

7. Do one of the following:


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• To manually adjust the grading elevation, click or and note the changed values for cut, fill, and net volume.

• To automatically adjust the elevation to meet a net volume target, click . Enter the target volume in the Auto-Balance Volumes dialog box, then click OK. The elevation is adjusted several times, getting as close to the target as possible.


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Parcel Volume Report

Use this dialog box to select the surface and parcels for a parcel volume report. This report calculates the volume of an area bounded by a selected parcel and is based on an existing volume surface.

Select Volume Surface

Volume Surface: Specifies the volume surface to use in the report. For more information about creating a volume surface, see Calculating Surface Volumes.

Select Parcel

Parcel: Specifies the parcel to use in the report. Only one parcel can be selected for this report.

Select a parcel from the list or click to select a parcel from the drawing

Volume Corrections

Specifies the volume correction factors to apply to the report. A factor of 1.00 applies no adjustment to the raw volume.

Fill Correction: Specifies the contraction or shrinkage of the fill material. The fill factor can be used to compute the additional material volume requirements.

Cut Correction: Specifies the expansion or swell of the cut material. The volume of material generally expands after removing it. Therefore, the cut factor is usually set to greater than 1, which indicates swell or expansion of the material. For example, a 1.2 cut factor would mean that for every 1 cubic meter of material removed, 1.2 cubic meters of volume would need to be accounted for transport.

Elevation Tolerance: Specifies the difference in elevation that must exist between the two surfaces of the volume surface in order for the volume to be included in the report. The surfaces are compared


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at each grid node. If the difference in elevation is less than the tolerance value, then it is considered to be zero volume. Note: This control is available only if the selected Volume Surface is a grid surface.


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Parcel Volume Report

Client: Prepared by:

Client Darian Klare USCAD US CAD Address 1 3191 Red Hill Avenue Date: 9-2-2009

Parcel Name: PARCELS-LOTS - LOT 8 Description: Volume Surface: VOL-EGPADS Fill correction: 1 Cut correction: 1 Elevation Tolerance: 0.05

Fill Volume Cut Volume Net Volume

3955.48Cu.Yd 0.00Cu.Yd 3955.48Cu.Yd

Sample Line Groups and Sections: Corridor Volumes

Use the quantity takeoff functionality to extract and report sectional material volumes, based on sample line groups.

You can create tables and reports about:

• Volumes along an alignment, comparing various design surfaces and existing ground surfaces.

• Volumes for shapes, which are closed cross-sectional areas created by a single subassembly. For example, a curb (a closed area within a concrete curb or curb and gutter).

• Volumes between various (designed/grading/existing) formations.

Tip: To query composite and bounded volume differences between surfaces, use surface volume reporting.

Quantity takeoff reporting uses criteria settings that are portable and extensible. You can create criteria based either on existing data including surfaces and sample line groups or on standard surface names.

You prepare to generate quantity takeoff information by creating a list of materials and applying the predefined criteria to it, mapping existing surfaces or other objects to the names in the criteria. After the material list is generated, the settings and volume calculations are stored with the sample line group and can be used to generate tables and reports.


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You can display quantity takeoff information using standard AutoCAD Civil 3D table formats or view and export it in an XML format file.

Define Material Data Type

Specifies the type of data that is compared and processed when defining the material. Either Surface or Corridor Shape.

Select Surface/Shape Lists sampled surfaces and corridor shapes for this sample line group. Select a surface or corridor shape.


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Note: Corridor shapes can be added only to a material with a Structure quantity type.

Adds the data specified in the Define Material fields to the selected material type. Note: If a material is not selected, the data is not added.

The properties table contains the following columns:

Material Name Names of material lists, material names, surfaces, and corridor shapes arranged in a tree or hierarchy. Each instance of applying criteria to materials in a sample line group is added as a numbered list. List names can be edited. Click next to a list name to display its components (materials).Click next to a material name to display its components (surfaces or structures).

Condition Specifies the condition on which to base the calculation:

• Above. Specifies that an area above this surface is included in the material definition. Used with Below to define two or more surfaces for cut, fill, and structures material types.

• Below. Specifies that an area below this surface is included in the material definition. Used with Above to define two or more surfaces for cut, fill, and structures material types.

• Base. Specifies that this surface is the surface to compare against the compare surface. Used with Compare to define two or more surfaces for earthworks and cut and fill material types.

• Compare. Specifies that this surface is the surface to compare against the base surface. Used with Base to define two or more surfaces for earthworks and cut and fill material types.

• Include. Specifies a corridor shape that is included in the structure type definition.

Quantity Type Specifies the quantity type:

• Cut. Calculates the material to remove. • Fill. Calculates the material to add. • Cut and Refill. Defines an area in the section where a material is removed and refilled with fill

material.


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• Earthworks. Compares two surfaces to calculate both cut and fill areas and displays them separately.

• Structures. Calculates the volume of one or more corridor shapes (as defined by the shape codes that are used to define the corridor). For information about shape codes


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Compute Materials

Earthwork Materials

Select Materials


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XML Reporting

Generating a Volume Report


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Add a Volume Table

Use this dialog box to create a table in the drawing using volume data from material list for a sample line group.


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Earthwork Volume Table


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Creating a Mass Haul Diagram

Use the quantity takeoff functionality to extract and report sectional material volumes, based on sample line groups.

Create a mass haul diagram to display a partial or overall view of earthwork volumes.

Using the Create Mass Haul Diagram wizard, you can create a mass haul diagram with a single click, accepting the default settings for name, style, display, and balancing options. Later, you can change the default settings in the Mass Haul Properties dialog box. Alternatively, you can specify settings in the wizard.


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Reporting Toolbox

Use the Reports Manager to access all the report types that are available in AutoCAD Civil 3D 2010. You can add custom reports to the Reports Manager so even your custom reporting can be done through the same interface.

Reports in AutoCAD Civil 3D are of two types: LandXML and .NET. Depending on the type of report, different dialog boxes are displayed after you select the report to run.

The LandXML reports use LandXML data output for report generation, and use predefined or custom XSL style sheets to format the report data.

The .NET reports use custom dialog boxes for selecting the data and options for the report.

The LandXML Reporting tool is included with AutoCAD Civil 3D as a program that you can run independently of AutoCAD Civil 3D. To use this tool, you export a LandXML file and then open it within LandXML Reporting. Access LandXML Reporting from the desktop icon or by selecting it from the AutoCAD Civil 3D 2010 Program Group from the Start Programs menu.


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Quantify This... Using Civil 3D